OpenVDB: openvdb/tree/RootNode.h Source File

OpenVDB 9.0.0

RootNode.h
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1// Copyright Contributors to the OpenVDB Project
2// SPDX-License-Identifier: MPL-2.0
3///
4/// @file RootNode.h
5///
6/// @brief The root node of an OpenVDB tree
7
8#ifndef OPENVDB_TREE_ROOTNODE_HAS_BEEN_INCLUDED
9#define OPENVDB_TREE_ROOTNODE_HAS_BEEN_INCLUDED
10
11#include <openvdb/Exceptions.h>
12#include <openvdb/Types.h>
13#include <openvdb/io/Compression.h> // for truncateRealToHalf()
14#include <openvdb/math/Math.h> // for isZero(), isExactlyEqual(), etc.
15#include <openvdb/math/BBox.h>
16#include <openvdb/util/NodeMasks.h> // for backward compatibility only (see readTopology())
17#include <openvdb/version.h>
18#include <tbb/parallel_for.h>
19#include <map>
20#include <set>
21#include <sstream>
22#include <vector>
23
24
25namespace openvdb {
26 OPENVDB_USE_VERSION_NAMESPACE
27namespace OPENVDB_VERSION_NAME {
28namespace tree {
29
30// Forward declarations
31template<typename HeadType, int HeadLevel> struct NodeChain;
32template<typename, typename> struct SameRootConfig;
33template<typename, typename, bool> struct RootNodeCopyHelper;
34template<typename, typename, typename, bool> struct RootNodeCombineHelper;
35
36
37template<typename ChildType>
38 class RootNode
39{
40public:
41 using ChildNodeType = ChildType;
42 using LeafNodeType = typename ChildType::LeafNodeType;
43 using ValueType = typename ChildType::ValueType;
44 using BuildType = typename ChildType::BuildType;
45
46 static const Index LEVEL = 1 + ChildType::LEVEL; // level 0 = leaf
47
48 /// NodeChainType is a list of this tree's node types, from LeafNodeType to RootNode.
49 using NodeChainType = typename NodeChain<RootNode, LEVEL>::Type;
50 static_assert(NodeChainType::Size == LEVEL + 1,
51 "wrong number of entries in RootNode node chain");
52
53 /// @brief ValueConverter<T>::Type is the type of a RootNode having the same
54 /// child hierarchy as this node but a different value type, T.
55 template<typename OtherValueType>
56 struct ValueConverter {
57 using Type = RootNode<typename ChildType::template ValueConverter<OtherValueType>::Type>;
58 };
59
60 /// @brief SameConfiguration<OtherNodeType>::value is @c true if and only if
61 /// OtherNodeType is the type of a RootNode whose ChildNodeType has the same
62 /// configuration as this node's ChildNodeType.
63 template<typename OtherNodeType>
64 struct SameConfiguration {
65 static const bool value = SameRootConfig<ChildNodeType, OtherNodeType>::value;
66 };
67
68
69 /// Construct a new tree with a background value of 0.
70 RootNode();
71
72 /// Construct a new tree with the given background value.
73 explicit RootNode(const ValueType& background);
74
75 RootNode(const RootNode& other) { *this = other; }
76
77 /// @brief Construct a new tree that reproduces the topology and active states
78 /// of a tree of a different ValueType but the same configuration (levels,
79 /// node dimensions and branching factors). Cast the other tree's values to
80 /// this tree's ValueType.
81 /// @throw TypeError if the other tree's configuration doesn't match this tree's
82 /// or if this tree's ValueType is not constructible from the other tree's ValueType.
83 template<typename OtherChildType>
84 explicit RootNode(const RootNode<OtherChildType>& other) { *this = other; }
85
86 /// @brief Construct a new tree that reproduces the topology and active states of
87 /// another tree (which may have a different ValueType), but not the other tree's values.
88 /// @details All tiles and voxels that are active in the other tree are set to
89 /// @a foreground in the new tree, and all inactive tiles and voxels are set to @a background.
90 /// @param other the root node of a tree having (possibly) a different ValueType
91 /// @param background the value to which inactive tiles and voxels are initialized
92 /// @param foreground the value to which active tiles and voxels are initialized
93 /// @throw TypeError if the other tree's configuration doesn't match this tree's.
94 template<typename OtherChildType>
95 RootNode(const RootNode<OtherChildType>& other,
96 const ValueType& background, const ValueType& foreground, TopologyCopy);
97
98 /// @brief Construct a new tree that reproduces the topology and active states of
99 /// another tree (which may have a different ValueType), but not the other tree's values.
100 /// All tiles and voxels in the new tree are set to @a background regardless of
101 /// their active states in the other tree.
102 /// @param other the root node of a tree having (possibly) a different ValueType
103 /// @param background the value to which inactive tiles and voxels are initialized
104 /// @note This copy constructor is generally faster than the one that takes both
105 /// a foreground and a background value. Its main application is in multithreaded
106 /// operations where the topology of the output tree exactly matches the input tree.
107 /// @throw TypeError if the other tree's configuration doesn't match this tree's.
108 template<typename OtherChildType>
109 RootNode(const RootNode<OtherChildType>& other, const ValueType& background, TopologyCopy);
110
111 /// @brief Copy a root node of the same type as this node.
112 RootNode& operator=(const RootNode& other);
113 /// @brief Copy a root node of the same tree configuration as this node
114 /// but a different ValueType.
115 /// @throw TypeError if the other tree's configuration doesn't match this tree's.
116 /// @note This node's ValueType must be constructible from the other node's ValueType.
117 /// For example, a root node with values of type float can be assigned to a root node
118 /// with values of type Vec3s, because a Vec3s can be constructed from a float.
119 /// But a Vec3s root node cannot be assigned to a float root node.
120 template<typename OtherChildType>
121 RootNode& operator=(const RootNode<OtherChildType>& other);
122
123 ~RootNode() { this->clear(); }
124
125private:
126 struct Tile {
127 Tile(): value(zeroVal<ValueType>()), active(false) {}
128 Tile(const ValueType& v, bool b): value(v), active(b) {}
129 ValueType value;
130 bool active;
131 };
132
133 // This lightweight struct pairs child pointers and tiles.
134 struct NodeStruct {
135 ChildType* child;
136 Tile tile;
137
138 NodeStruct(): child(nullptr) {}
139 NodeStruct(ChildType& c): child(&c) {}
140 NodeStruct(const Tile& t): child(nullptr), tile(t) {}
141 NodeStruct(const NodeStruct&) = default;
142 NodeStruct& operator=(const NodeStruct&) = default;
143 ~NodeStruct() {} ///< @note doesn't delete child
144
145 bool isChild() const { return child != nullptr; }
146 bool isTile() const { return child == nullptr; }
147 bool isTileOff() const { return isTile() && !tile.active; }
148 bool isTileOn() const { return isTile() && tile.active; }
149
150 void set(ChildType& c) { delete child; child = &c; }
151 void set(const Tile& t) { delete child; child = nullptr; tile = t; }
152 ChildType& steal(const Tile& t) { ChildType* c=child; child=nullptr; tile=t; return *c; }
153 };
154
155 using MapType = std::map<Coord, NodeStruct>;
156 using MapIter = typename MapType::iterator;
157 using MapCIter = typename MapType::const_iterator;
158
159 using CoordSet = std::set<Coord>;
160 using CoordSetIter = typename CoordSet::iterator;
161 using CoordSetCIter = typename CoordSet::const_iterator;
162
163 static void setTile(const MapIter& i, const Tile& t) { i->second.set(t); }
164 static void setChild(const MapIter& i, ChildType& c) { i->second.set(c); }
165 static Tile& getTile(const MapIter& i) { return i->second.tile; }
166 static const Tile& getTile(const MapCIter& i) { return i->second.tile; }
167 static ChildType& getChild(const MapIter& i) { return *(i->second.child); }
168 static const ChildType& getChild(const MapCIter& i) { return *(i->second.child); }
169 static ChildType& stealChild(const MapIter& i, const Tile& t) {return i->second.steal(t);}
170 static const ChildType& stealChild(const MapCIter& i,const Tile& t) {return i->second.steal(t);}
171
172 static bool isChild(const MapCIter& i) { return i->second.isChild(); }
173 static bool isChild(const MapIter& i) { return i->second.isChild(); }
174 static bool isTile(const MapCIter& i) { return i->second.isTile(); }
175 static bool isTile(const MapIter& i) { return i->second.isTile(); }
176 static bool isTileOff(const MapCIter& i) { return i->second.isTileOff(); }
177 static bool isTileOff(const MapIter& i) { return i->second.isTileOff(); }
178 static bool isTileOn(const MapCIter& i) { return i->second.isTileOn(); }
179 static bool isTileOn(const MapIter& i) { return i->second.isTileOn(); }
180
181 struct NullPred {
182 static inline bool test(const MapIter&) { return true; }
183 static inline bool test(const MapCIter&) { return true; }
184 };
185 struct ValueOnPred {
186 static inline bool test(const MapIter& i) { return isTileOn(i); }
187 static inline bool test(const MapCIter& i) { return isTileOn(i); }
188 };
189 struct ValueOffPred {
190 static inline bool test(const MapIter& i) { return isTileOff(i); }
191 static inline bool test(const MapCIter& i) { return isTileOff(i); }
192 };
193 struct ValueAllPred {
194 static inline bool test(const MapIter& i) { return isTile(i); }
195 static inline bool test(const MapCIter& i) { return isTile(i); }
196 };
197 struct ChildOnPred {
198 static inline bool test(const MapIter& i) { return isChild(i); }
199 static inline bool test(const MapCIter& i) { return isChild(i); }
200 };
201 struct ChildOffPred {
202 static inline bool test(const MapIter& i) { return isTile(i); }
203 static inline bool test(const MapCIter& i) { return isTile(i); }
204 };
205
206 template<typename _RootNodeT, typename _MapIterT, typename FilterPredT>
207 class BaseIter
208 {
209 public:
210 using RootNodeT = _RootNodeT;
211 using MapIterT = _MapIterT; // either MapIter or MapCIter
212
213 bool operator==(const BaseIter& other) const
214 {
215 return (mParentNode == other.mParentNode) && (mIter == other.mIter);
216 }
217 bool operator!=(const BaseIter& other) const { return !(*this == other); }
218
219 RootNodeT* getParentNode() const { return mParentNode; }
220 /// Return a reference to the node over which this iterator iterates.
221 RootNodeT& parent() const
222 {
223 if (!mParentNode) OPENVDB_THROW(ValueError, "iterator references a null parent node");
224 return *mParentNode;
225 }
226
227 bool test() const { assert(mParentNode); return mIter != mParentNode->mTable.end(); }
228 operator bool() const { return this->test(); }
229
230 void increment() { if (this->test()) { ++mIter; } this->skip(); }
231 bool next() { this->increment(); return this->test(); }
232 void increment(Index n) { for (Index i = 0; i < n && this->next(); ++i) {} }
233
234 /// @brief Return this iterator's position as an offset from
235 /// the beginning of the parent node's map.
236 Index pos() const
237 {
238 return !mParentNode ? 0U : Index(std::distance(mParentNode->mTable.begin(), mIter));
239 }
240
241 bool isValueOn() const { return RootNodeT::isTileOn(mIter); }
242 bool isValueOff() const { return RootNodeT::isTileOff(mIter); }
243 void setValueOn(bool on = true) const { mIter->second.tile.active = on; }
244 void setValueOff() const { mIter->second.tile.active = false; }
245
246 /// Return the coordinates of the item to which this iterator is pointing.
247 Coord getCoord() const { return mIter->first; }
248 /// Return in @a xyz the coordinates of the item to which this iterator is pointing.
249 void getCoord(Coord& xyz) const { xyz = this->getCoord(); }
250
251 protected:
252 BaseIter(): mParentNode(nullptr) {}
253 BaseIter(RootNodeT& parent, const MapIterT& iter): mParentNode(&parent), mIter(iter) {}
254
255 void skip() { while (this->test() && !FilterPredT::test(mIter)) ++mIter; }
256
257 RootNodeT* mParentNode;
258 MapIterT mIter;
259 }; // BaseIter
260
261 template<typename RootNodeT, typename MapIterT, typename FilterPredT, typename ChildNodeT>
262 class ChildIter: public BaseIter<RootNodeT, MapIterT, FilterPredT>
263 {
264 public:
265 using BaseT = BaseIter<RootNodeT, MapIterT, FilterPredT>;
266 using NodeType = RootNodeT;
267 using ValueType = NodeType;
268 using ChildNodeType = ChildNodeT;
269 using NonConstNodeType = typename std::remove_const<NodeType>::type;
270 using NonConstValueType = typename std::remove_const<ValueType>::type;
271 using NonConstChildNodeType = typename std::remove_const<ChildNodeType>::type;
272 using BaseT::mIter;
273
274 ChildIter() {}
275 ChildIter(RootNodeT& parent, const MapIterT& iter): BaseT(parent, iter) { BaseT::skip(); }
276
277 ChildIter& operator++() { BaseT::increment(); return *this; }
278
279 ChildNodeT& getValue() const { return getChild(mIter); }
280 ChildNodeT& operator*() const { return this->getValue(); }
281 ChildNodeT* operator->() const { return &this->getValue(); }
282 }; // ChildIter
283
284 template<typename RootNodeT, typename MapIterT, typename FilterPredT, typename ValueT>
285 class ValueIter: public BaseIter<RootNodeT, MapIterT, FilterPredT>
286 {
287 public:
288 using BaseT = BaseIter<RootNodeT, MapIterT, FilterPredT>;
289 using NodeType = RootNodeT;
290 using ValueType = ValueT;
291 using NonConstNodeType = typename std::remove_const<NodeType>::type;
292 using NonConstValueType = typename std::remove_const<ValueT>::type;
293 using BaseT::mIter;
294
295 ValueIter() {}
296 ValueIter(RootNodeT& parent, const MapIterT& iter): BaseT(parent, iter) { BaseT::skip(); }
297
298 ValueIter& operator++() { BaseT::increment(); return *this; }
299
300 ValueT& getValue() const { return getTile(mIter).value; }
301 ValueT& operator*() const { return this->getValue(); }
302 ValueT* operator->() const { return &(this->getValue()); }
303
304 void setValue(const ValueT& v) const { assert(isTile(mIter)); getTile(mIter).value = v; }
305
306 template<typename ModifyOp>
307 void modifyValue(const ModifyOp& op) const
308 {
309 assert(isTile(mIter));
310 op(getTile(mIter).value);
311 }
312 }; // ValueIter
313
314 template<typename RootNodeT, typename MapIterT, typename ChildNodeT, typename ValueT>
315 class DenseIter: public BaseIter<RootNodeT, MapIterT, NullPred>
316 {
317 public:
318 using BaseT = BaseIter<RootNodeT, MapIterT, NullPred>;
319 using NodeType = RootNodeT;
320 using ValueType = ValueT;
321 using ChildNodeType = ChildNodeT;
322 using NonConstNodeType = typename std::remove_const<NodeType>::type;
323 using NonConstValueType = typename std::remove_const<ValueT>::type;
324 using NonConstChildNodeType = typename std::remove_const<ChildNodeT>::type;
325 using BaseT::mIter;
326
327 DenseIter() {}
328 DenseIter(RootNodeT& parent, const MapIterT& iter): BaseT(parent, iter) {}
329
330 DenseIter& operator++() { BaseT::increment(); return *this; }
331
332 bool isChildNode() const { return isChild(mIter); }
333
334 ChildNodeT* probeChild(NonConstValueType& value) const
335 {
336 if (isChild(mIter)) return &getChild(mIter);
337 value = getTile(mIter).value;
338 return nullptr;
339 }
340 bool probeChild(ChildNodeT*& child, NonConstValueType& value) const
341 {
342 child = this->probeChild(value);
343 return child != nullptr;
344 }
345 bool probeValue(NonConstValueType& value) const { return !this->probeChild(value); }
346
347 void setChild(ChildNodeT& c) const { RootNodeT::setChild(mIter, c); }
348 void setChild(ChildNodeT* c) const { assert(c != nullptr); RootNodeT::setChild(mIter, *c); }
349 void setValue(const ValueT& v) const
350 {
351 if (isTile(mIter)) getTile(mIter).value = v;
352 /// @internal For consistency with iterators for other node types
353 /// (see, e.g., InternalNode::DenseIter::unsetItem()), we don't call
354 /// setTile() here, because that would also delete the child.
355 else stealChild(mIter, Tile(v, /*active=*/true));
356 }
357 }; // DenseIter
358
359public:
360 using ChildOnIter = ChildIter<RootNode, MapIter, ChildOnPred, ChildType>;
361 using ChildOnCIter = ChildIter<const RootNode, MapCIter, ChildOnPred, const ChildType>;
362 using ChildOffIter = ValueIter<RootNode, MapIter, ChildOffPred, const ValueType>;
363 using ChildOffCIter = ValueIter<const RootNode, MapCIter, ChildOffPred, ValueType>;
364 using ChildAllIter = DenseIter<RootNode, MapIter, ChildType, ValueType>;
365 using ChildAllCIter = DenseIter<const RootNode, MapCIter, const ChildType, const ValueType>;
366
367 using ValueOnIter = ValueIter<RootNode, MapIter, ValueOnPred, ValueType>;
368 using ValueOnCIter = ValueIter<const RootNode, MapCIter, ValueOnPred, const ValueType>;
369 using ValueOffIter = ValueIter<RootNode, MapIter, ValueOffPred, ValueType>;
370 using ValueOffCIter = ValueIter<const RootNode, MapCIter, ValueOffPred, const ValueType>;
371 using ValueAllIter = ValueIter<RootNode, MapIter, ValueAllPred, ValueType>;
372 using ValueAllCIter = ValueIter<const RootNode, MapCIter, ValueAllPred, const ValueType>;
373
374
375 ChildOnCIter cbeginChildOn() const { return ChildOnCIter(*this, mTable.begin()); }
376 ChildOffCIter cbeginChildOff() const { return ChildOffCIter(*this, mTable.begin()); }
377 ChildAllCIter cbeginChildAll() const { return ChildAllCIter(*this, mTable.begin()); }
378 ChildOnCIter beginChildOn() const { return cbeginChildOn(); }
379 ChildOffCIter beginChildOff() const { return cbeginChildOff(); }
380 ChildAllCIter beginChildAll() const { return cbeginChildAll(); }
381 ChildOnIter beginChildOn() { return ChildOnIter(*this, mTable.begin()); }
382 ChildOffIter beginChildOff() { return ChildOffIter(*this, mTable.begin()); }
383 ChildAllIter beginChildAll() { return ChildAllIter(*this, mTable.begin()); }
384
385 ValueOnCIter cbeginValueOn() const { return ValueOnCIter(*this, mTable.begin()); }
386 ValueOffCIter cbeginValueOff() const { return ValueOffCIter(*this, mTable.begin()); }
387 ValueAllCIter cbeginValueAll() const { return ValueAllCIter(*this, mTable.begin()); }
388 ValueOnCIter beginValueOn() const { return cbeginValueOn(); }
389 ValueOffCIter beginValueOff() const { return cbeginValueOff(); }
390 ValueAllCIter beginValueAll() const { return cbeginValueAll(); }
391 ValueOnIter beginValueOn() { return ValueOnIter(*this, mTable.begin()); }
392 ValueOffIter beginValueOff() { return ValueOffIter(*this, mTable.begin()); }
393 ValueAllIter beginValueAll() { return ValueAllIter(*this, mTable.begin()); }
394
395 /// Return the total amount of memory in bytes occupied by this node and its children.
396 Index64 memUsage() const;
397
398 /// @brief Expand the specified bbox so it includes the active tiles of
399 /// this root node as well as all the active values in its child
400 /// nodes. If visitVoxels is false LeafNodes will be approximated
401 /// as dense, i.e. with all voxels active. Else the individual
402 /// active voxels are visited to produce a tight bbox.
403 void evalActiveBoundingBox(CoordBBox& bbox, bool visitVoxels = true) const;
404
405 /// Return the bounding box of this RootNode, i.e., an infinite bounding box.
406 static CoordBBox getNodeBoundingBox() { return CoordBBox::inf(); }
407
408#if OPENVDB_ABI_VERSION_NUMBER >= 9
409 /// Return the transient data value.
410 Index32 transientData() const { return mTransientData; }
411 /// Set the transient data value.
412 void setTransientData(Index32 transientData) { mTransientData = transientData; }
413#endif
414
415 /// @brief Change inactive tiles or voxels with a value equal to +/- the
416 /// old background to the specified value (with the same sign). Active values
417 /// are unchanged.
418 ///
419 /// @param value The new background value
420 /// @param updateChildNodes If true the background values of the
421 /// child nodes is also updated. Else only the background value
422 /// stored in the RootNode itself is changed.
423 ///
424 /// @note Instead of setting @a updateChildNodes to true, consider
425 /// using tools::changeBackground or
426 /// tools::changeLevelSetBackground which are multi-threaded!
427 void setBackground(const ValueType& value, bool updateChildNodes);
428
429 /// Return this node's background value.
430 const ValueType& background() const { return mBackground; }
431
432 /// Return @c true if the given tile is inactive and has the background value.
433 bool isBackgroundTile(const Tile&) const;
434 //@{
435 /// Return @c true if the given iterator points to an inactive tile with the background value.
436 bool isBackgroundTile(const MapIter&) const;
437 bool isBackgroundTile(const MapCIter&) const;
438 //@}
439
440 /// Return the number of background tiles.
441 size_t numBackgroundTiles() const;
442 /// @brief Remove all background tiles.
443 /// @return the number of tiles removed.
444 size_t eraseBackgroundTiles();
445 inline void clear();
446
447 /// Return @c true if this node's table is either empty or contains only background tiles.
448 bool empty() const { return mTable.size() == numBackgroundTiles(); }
449
450 /// @brief Expand this node's table so that (x, y, z) is included in the index range.
451 /// @return @c true if an expansion was performed (i.e., if (x, y, z) was not already
452 /// included in the index range).
453 bool expand(const Coord& xyz);
454
455 static Index getLevel() { return LEVEL; }
456 static void getNodeLog2Dims(std::vector<Index>& dims);
457 static Index getChildDim() { return ChildType::DIM; }
458
459 /// Return the number of entries in this node's table.
460 Index getTableSize() const { return static_cast<Index>(mTable.size()); }
461
462 Index getWidth() const { return this->getMaxIndex()[0] - this->getMinIndex()[0]; }
463 Index getHeight() const { return this->getMaxIndex()[1] - this->getMinIndex()[1]; }
464 Index getDepth() const { return this->getMaxIndex()[2] - this->getMinIndex()[2]; }
465
466 /// Return the smallest index of the current tree.
467 Coord getMinIndex() const;
468 /// Return the largest index of the current tree.
469 Coord getMaxIndex() const;
470 /// Return the current index range. Both min and max are inclusive.
471 void getIndexRange(CoordBBox& bbox) const;
472
473 /// @brief Return @c true if the given tree has the same node and active value
474 /// topology as this tree (but possibly a different @c ValueType).
475 template<typename OtherChildType>
476 bool hasSameTopology(const RootNode<OtherChildType>& other) const;
477
478 /// Return @c false if the other node's dimensions don't match this node's.
479 template<typename OtherChildType>
480 static bool hasSameConfiguration(const RootNode<OtherChildType>& other);
481
482 /// Return @c true if values of the other node's ValueType can be converted
483 /// to values of this node's ValueType.
484 template<typename OtherChildType>
485 static bool hasCompatibleValueType(const RootNode<OtherChildType>& other);
486
487 Index32 leafCount() const;
488 Index32 nonLeafCount() const;
489 Index32 childCount() const;
490 Index64 onVoxelCount() const;
491 Index64 offVoxelCount() const;
492 Index64 onLeafVoxelCount() const;
493 Index64 offLeafVoxelCount() const;
494 Index64 onTileCount() const;
495 void nodeCount(std::vector<Index32> &vec) const;
496
497 bool isValueOn(const Coord& xyz) const;
498
499 /// Return @c true if this root node, or any of its child nodes, have active tiles.
500 bool hasActiveTiles() const;
501
502 const ValueType& getValue(const Coord& xyz) const;
503 bool probeValue(const Coord& xyz, ValueType& value) const;
504
505 /// @brief Return the tree depth (0 = root) at which the value of voxel (x, y, z) resides.
506 /// @details If (x, y, z) isn't explicitly represented in the tree (i.e.,
507 /// it is implicitly a background voxel), return -1.
508 int getValueDepth(const Coord& xyz) const;
509
510 /// Set the active state of the voxel at the given coordinates but don't change its value.
511 void setActiveState(const Coord& xyz, bool on);
512 /// Set the value of the voxel at the given coordinates but don't change its active state.
513 void setValueOnly(const Coord& xyz, const ValueType& value);
514 /// Set the value of the voxel at the given coordinates and mark the voxel as active.
515 void setValueOn(const Coord& xyz, const ValueType& value);
516 /// Mark the voxel at the given coordinates as inactive but don't change its value.
517 void setValueOff(const Coord& xyz);
518 /// Set the value of the voxel at the given coordinates and mark the voxel as inactive.
519 void setValueOff(const Coord& xyz, const ValueType& value);
520
521 /// @brief Apply a functor to the value of the voxel at the given coordinates
522 /// and mark the voxel as active.
523 template<typename ModifyOp>
524 void modifyValue(const Coord& xyz, const ModifyOp& op);
525 /// Apply a functor to the voxel at the given coordinates.
526 template<typename ModifyOp>
527 void modifyValueAndActiveState(const Coord& xyz, const ModifyOp& op);
528
529 //@{
530 /// @brief Set all voxels within a given axis-aligned box to a constant value.
531 /// @param bbox inclusive coordinates of opposite corners of an axis-aligned box
532 /// @param value the value to which to set voxels within the box
533 /// @param active if true, mark voxels within the box as active,
534 /// otherwise mark them as inactive
535 /// @note This operation generates a sparse, but not always optimally sparse,
536 /// representation of the filled box. Follow fill operations with a prune()
537 /// operation for optimal sparseness.
538 void fill(const CoordBBox& bbox, const ValueType& value, bool active = true);
539 void sparseFill(const CoordBBox& bbox, const ValueType& value, bool active = true)
540 {
541 this->fill(bbox, value, active);
542 }
543 //@}
544
545 /// @brief Set all voxels within a given axis-aligned box to a constant value
546 /// and ensure that those voxels are all represented at the leaf level.
547 /// @param bbox inclusive coordinates of opposite corners of an axis-aligned box.
548 /// @param value the value to which to set voxels within the box.
549 /// @param active if true, mark voxels within the box as active,
550 /// otherwise mark them as inactive.
551 /// @sa voxelizeActiveTiles()
552 void denseFill(const CoordBBox& bbox, const ValueType& value, bool active = true);
553
554 /// @brief Densify active tiles, i.e., replace them with leaf-level active voxels.
555 ///
556 /// @param threaded if true, this operation is multi-threaded (over the internal nodes).
557 ///
558 /// @warning This method can explode the tree's memory footprint, especially if it
559 /// contains active tiles at the upper levels (in particular the root level)!
560 ///
561 /// @sa denseFill()
562 void voxelizeActiveTiles(bool threaded = true);
563
564 /// @brief Copy into a dense grid the values of all voxels, both active and inactive,
565 /// that intersect a given bounding box.
566 /// @param bbox inclusive bounding box of the voxels to be copied into the dense grid
567 /// @param dense dense grid with a stride in @e z of one (see tools::Dense
568 /// in tools/Dense.h for the required API)
569 template<typename DenseT>
570 void copyToDense(const CoordBBox& bbox, DenseT& dense) const;
571
572
573 //
574 // I/O
575 //
576 bool writeTopology(std::ostream&, bool toHalf = false) const;
577 bool readTopology(std::istream&, bool fromHalf = false);
578
579 void writeBuffers(std::ostream&, bool toHalf = false) const;
580 void readBuffers(std::istream&, bool fromHalf = false);
581 void readBuffers(std::istream&, const CoordBBox&, bool fromHalf = false);
582
583
584 //
585 // Voxel access
586 //
587 /// Return the value of the voxel at the given coordinates and, if necessary, update
588 /// the accessor with pointers to the nodes along the path from the root node to
589 /// the node containing the voxel.
590 /// @note Used internally by ValueAccessor.
591 template<typename AccessorT>
592 const ValueType& getValueAndCache(const Coord& xyz, AccessorT&) const;
593 /// Return @c true if the voxel at the given coordinates is active and, if necessary,
594 /// update the accessor with pointers to the nodes along the path from the root node
595 /// to the node containing the voxel.
596 /// @note Used internally by ValueAccessor.
597 template<typename AccessorT>
598 bool isValueOnAndCache(const Coord& xyz, AccessorT&) const;
599
600 /// Change the value of the voxel at the given coordinates and mark it as active.
601 /// If necessary, update the accessor with pointers to the nodes along the path
602 /// from the root node to the node containing the voxel.
603 /// @note Used internally by ValueAccessor.
604 template<typename AccessorT>
605 void setValueAndCache(const Coord& xyz, const ValueType& value, AccessorT&);
606
607 /// Set the value of the voxel at the given coordinates without changing its active state.
608 /// If necessary, update the accessor with pointers to the nodes along the path
609 /// from the root node to the node containing the voxel.
610 /// @note Used internally by ValueAccessor.
611 template<typename AccessorT>
612 void setValueOnlyAndCache(const Coord& xyz, const ValueType& value, AccessorT&);
613
614 /// Apply a functor to the value of the voxel at the given coordinates
615 /// and mark the voxel as active.
616 /// If necessary, update the accessor with pointers to the nodes along the path
617 /// from the root node to the node containing the voxel.
618 /// @note Used internally by ValueAccessor.
619 template<typename ModifyOp, typename AccessorT>
620 void modifyValueAndCache(const Coord& xyz, const ModifyOp& op, AccessorT&);
621
622 /// Apply a functor to the voxel at the given coordinates.
623 /// If necessary, update the accessor with pointers to the nodes along the path
624 /// from the root node to the node containing the voxel.
625 /// @note Used internally by ValueAccessor.
626 template<typename ModifyOp, typename AccessorT>
627 void modifyValueAndActiveStateAndCache(const Coord& xyz, const ModifyOp& op, AccessorT&);
628
629 /// Change the value of the voxel at the given coordinates and mark it as inactive.
630 /// If necessary, update the accessor with pointers to the nodes along the path
631 /// from the root node to the node containing the voxel.
632 /// @note Used internally by ValueAccessor.
633 template<typename AccessorT>
634 void setValueOffAndCache(const Coord& xyz, const ValueType& value, AccessorT&);
635
636 /// Set the active state of the voxel at the given coordinates without changing its value.
637 /// If necessary, update the accessor with pointers to the nodes along the path
638 /// from the root node to the node containing the voxel.
639 /// @note Used internally by ValueAccessor.
640 template<typename AccessorT>
641 void setActiveStateAndCache(const Coord& xyz, bool on, AccessorT&);
642
643 /// Return, in @a value, the value of the voxel at the given coordinates and,
644 /// if necessary, update the accessor with pointers to the nodes along
645 /// the path from the root node to the node containing the voxel.
646 /// @return @c true if the voxel at the given coordinates is active
647 /// @note Used internally by ValueAccessor.
648 template<typename AccessorT>
649 bool probeValueAndCache(const Coord& xyz, ValueType& value, AccessorT&) const;
650
651 /// Return the tree depth (0 = root) at which the value of voxel (x, y, z) resides.
652 /// If (x, y, z) isn't explicitly represented in the tree (i.e., it is implicitly
653 /// a background voxel), return -1. If necessary, update the accessor with pointers
654 /// to the nodes along the path from the root node to the node containing the voxel.
655 /// @note Used internally by ValueAccessor.
656 template<typename AccessorT>
657 int getValueDepthAndCache(const Coord& xyz, AccessorT&) const;
658
659 /// Set all voxels that lie outside the given axis-aligned box to the background.
660 void clip(const CoordBBox&);
661
662 /// @brief Reduce the memory footprint of this tree by replacing with tiles
663 /// any nodes whose values are all the same (optionally to within a tolerance)
664 /// and have the same active state.
665 ///
666 /// @note Consider instead using tools::prune which is multi-threaded!
667 void prune(const ValueType& tolerance = zeroVal<ValueType>());
668
669 /// @brief Add the given leaf node to this tree, creating a new branch if necessary.
670 /// If a leaf node with the same origin already exists, replace it.
671 void addLeaf(LeafNodeType* leaf);
672
673 /// @brief Same as addLeaf() but, if necessary, update the given accessor with pointers
674 /// to the nodes along the path from the root node to the node containing the coordinate.
675 template<typename AccessorT>
676 void addLeafAndCache(LeafNodeType* leaf, AccessorT&);
677
678 /// @brief Return a pointer to the node of type @c NodeT that contains voxel (x, y, z)
679 /// and replace it with a tile of the specified value and state.
680 /// If no such node exists, leave the tree unchanged and return @c nullptr.
681 ///
682 /// @note The caller takes ownership of the node and is responsible for deleting it.
683 ///
684 /// @warning Since this method potentially removes nodes and branches of the tree,
685 /// it is important to clear the caches of all ValueAccessors associated with this tree.
686 template<typename NodeT>
687 NodeT* stealNode(const Coord& xyz, const ValueType& value, bool state);
688
689 /// @brief Add the given child node at the root level.
690 /// If a child node with the same origin already exists, delete the old node and add
691 /// the new node in its place (i.e. ownership of the new child node is transferred
692 /// to this RootNode).
693 /// @return @c true (for consistency with InternalNode::addChild)
694 bool addChild(ChildType* child);
695
696 /// @brief Add a tile containing voxel (x, y, z) at the root level,
697 /// deleting the existing branch if necessary.
698 void addTile(const Coord& xyz, const ValueType& value, bool state);
699
700 /// @brief Add a tile containing voxel (x, y, z) at the specified tree level,
701 /// creating a new branch if necessary. Delete any existing lower-level nodes
702 /// that contain (x, y, z).
703 void addTile(Index level, const Coord& xyz, const ValueType& value, bool state);
704
705 /// @brief Same as addTile() but, if necessary, update the given accessor with pointers
706 /// to the nodes along the path from the root node to the node containing the coordinate.
707 template<typename AccessorT>
708 void addTileAndCache(Index level, const Coord& xyz, const ValueType&, bool state, AccessorT&);
709
710 /// @brief Return a pointer to the leaf node that contains voxel (x, y, z).
711 /// If no such node exists, create one that preserves the values and
712 /// active states of all voxels.
713 /// @details Use this method to preallocate a static tree topology
714 /// over which to safely perform multithreaded processing.
715 LeafNodeType* touchLeaf(const Coord& xyz);
716
717 /// @brief Same as touchLeaf() but, if necessary, update the given accessor with pointers
718 /// to the nodes along the path from the root node to the node containing the coordinate.
719 template<typename AccessorT>
720 LeafNodeType* touchLeafAndCache(const Coord& xyz, AccessorT& acc);
721
722 //@{
723 /// @brief Return a pointer to the node that contains voxel (x, y, z).
724 /// If no such node exists, return @c nullptr.
725 template <typename NodeT>
726 NodeT* probeNode(const Coord& xyz);
727 template <typename NodeT>
728 const NodeT* probeConstNode(const Coord& xyz) const;
729 //@}
730
731 //@{
732 /// @brief Same as probeNode() but, if necessary, update the given accessor with pointers
733 /// to the nodes along the path from the root node to the node containing the coordinate.
734 template<typename NodeT, typename AccessorT>
735 NodeT* probeNodeAndCache(const Coord& xyz, AccessorT& acc);
736 template<typename NodeT, typename AccessorT>
737 const NodeT* probeConstNodeAndCache(const Coord& xyz, AccessorT& acc) const;
738 //@}
739
740 //@{
741 /// @brief Return a pointer to the leaf node that contains voxel (x, y, z).
742 /// If no such node exists, return @c nullptr.
743 LeafNodeType* probeLeaf(const Coord& xyz);
744 const LeafNodeType* probeConstLeaf(const Coord& xyz) const;
745 const LeafNodeType* probeLeaf(const Coord& xyz) const;
746 //@}
747
748 //@{
749 /// @brief Same as probeLeaf() but, if necessary, update the given accessor with pointers
750 /// to the nodes along the path from the root node to the node containing the coordinate.
751 template<typename AccessorT>
752 LeafNodeType* probeLeafAndCache(const Coord& xyz, AccessorT& acc);
753 template<typename AccessorT>
754 const LeafNodeType* probeConstLeafAndCache(const Coord& xyz, AccessorT& acc) const;
755 template<typename AccessorT>
756 const LeafNodeType* probeLeafAndCache(const Coord& xyz, AccessorT& acc) const;
757 //@}
758
759
760 //
761 // Aux methods
762 //
763
764 //@{
765 /// @brief Adds all nodes of a certain type to a container with the following API:
766 /// @code
767 /// struct ArrayT {
768 /// using value_type = ...;// defines the type of nodes to be added to the array
769 /// void push_back(value_type nodePtr);// method that add nodes to the array
770 /// };
771 /// @endcode
772 /// @details An example of a wrapper around a c-style array is:
773 /// @code
774 /// struct MyArray {
775 /// using value_type = LeafType*;
776 /// value_type* ptr;
777 /// MyArray(value_type* array) : ptr(array) {}
778 /// void push_back(value_type leaf) { *ptr++ = leaf; }
779 ///};
780 /// @endcode
781 /// @details An example that constructs a list of pointer to all leaf nodes is:
782 /// @code
783 /// std::vector<const LeafNodeType*> array;//most std contains have the required API
784 /// array.reserve(tree.leafCount());//this is a fast preallocation.
785 /// tree.getNodes(array);
786 /// @endcode
787 template<typename ArrayT> void getNodes(ArrayT& array);
788 template<typename ArrayT> void getNodes(ArrayT& array) const;
789 //@}
790
791 //@{
792 /// @brief Steals all nodes of a certain type from the tree and
793 /// adds them to a container with the following API:
794 /// @code
795 /// struct ArrayT {
796 /// using value_type = ...;// defines the type of nodes to be added to the array
797 /// void push_back(value_type nodePtr);// method that add nodes to the array
798 /// };
799 /// @endcode
800 /// @details An example of a wrapper around a c-style array is:
801 /// @code
802 /// struct MyArray {
803 /// using value_type = LeafType*;
804 /// value_type* ptr;
805 /// MyArray(value_type* array) : ptr(array) {}
806 /// void push_back(value_type leaf) { *ptr++ = leaf; }
807 ///};
808 /// @endcode
809 /// @details An example that constructs a list of pointer to all leaf nodes is:
810 /// @code
811 /// std::vector<const LeafNodeType*> array;//most std contains have the required API
812 /// array.reserve(tree.leafCount());//this is a fast preallocation.
813 /// tree.stealNodes(array);
814 /// @endcode
815 template<typename ArrayT>
816 void stealNodes(ArrayT& array, const ValueType& value, bool state);
817 template<typename ArrayT>
818 void stealNodes(ArrayT& array) { this->stealNodes(array, mBackground, false); }
819 //@}
820
821 /// @brief Efficiently merge another tree into this tree using one of several schemes.
822 /// @details This operation is primarily intended to combine trees that are mostly
823 /// non-overlapping (for example, intermediate trees from computations that are
824 /// parallelized across disjoint regions of space).
825 /// @note This operation is not guaranteed to produce an optimally sparse tree.
826 /// Follow merge() with prune() for optimal sparseness.
827 /// @warning This operation always empties the other tree.
828 template<MergePolicy Policy> void merge(RootNode& other);
829
830 /// @brief Union this tree's set of active values with the active values
831 /// of the other tree, whose @c ValueType may be different.
832 /// @details The resulting state of a value is active if the corresponding value
833 /// was already active OR if it is active in the other tree. Also, a resulting
834 /// value maps to a voxel if the corresponding value already mapped to a voxel
835 /// OR if it is a voxel in the other tree. Thus, a resulting value can only
836 /// map to a tile if the corresponding value already mapped to a tile
837 /// AND if it is a tile value in other tree.
838 ///
839 /// @note This operation modifies only active states, not values.
840 /// Specifically, active tiles and voxels in this tree are not changed, and
841 /// tiles or voxels that were inactive in this tree but active in the other tree
842 /// are marked as active in this tree but left with their original values.
843 ///
844 /// @note If preserveTiles is true, any active tile in this topology
845 /// will not be densified by overlapping child topology.
846 template<typename OtherChildType>
847 void topologyUnion(const RootNode<OtherChildType>& other, const bool preserveTiles = false);
848
849 /// @brief Intersects this tree's set of active values with the active values
850 /// of the other tree, whose @c ValueType may be different.
851 /// @details The resulting state of a value is active only if the corresponding
852 /// value was already active AND if it is active in the other tree. Also, a
853 /// resulting value maps to a voxel if the corresponding value
854 /// already mapped to an active voxel in either of the two grids
855 /// and it maps to an active tile or voxel in the other grid.
856 ///
857 /// @note This operation can delete branches in this grid if they
858 /// overlap with inactive tiles in the other grid. Likewise active
859 /// voxels can be turned into inactive voxels resulting in leaf
860 /// nodes with no active values. Thus, it is recommended to
861 /// subsequently call prune.
862 template<typename OtherChildType>
863 void topologyIntersection(const RootNode<OtherChildType>& other);
864
865 /// @brief Difference this tree's set of active values with the active values
866 /// of the other tree, whose @c ValueType may be different. So a
867 /// resulting voxel will be active only if the original voxel is
868 /// active in this tree and inactive in the other tree.
869 ///
870 /// @note This operation can delete branches in this grid if they
871 /// overlap with active tiles in the other grid. Likewise active
872 /// voxels can be turned into inactive voxels resulting in leaf
873 /// nodes with no active values. Thus, it is recommended to
874 /// subsequently call prune.
875 template<typename OtherChildType>
876 void topologyDifference(const RootNode<OtherChildType>& other);
877
878 template<typename CombineOp>
879 void combine(RootNode& other, CombineOp&, bool prune = false);
880
881 template<typename CombineOp, typename OtherRootNode /*= RootNode*/>
882 void combine2(const RootNode& other0, const OtherRootNode& other1,
883 CombineOp& op, bool prune = false);
884
885 /// @brief Call the templated functor BBoxOp with bounding box
886 /// information for all active tiles and leaf nodes in the tree.
887 /// An additional level argument is provided for each callback.
888 ///
889 /// @note The bounding boxes are guaranteed to be non-overlapping.
890 template<typename BBoxOp> void visitActiveBBox(BBoxOp&) const;
891
892 template<typename VisitorOp> void visit(VisitorOp&);
893 template<typename VisitorOp> void visit(VisitorOp&) const;
894
895 template<typename OtherRootNodeType, typename VisitorOp>
896 void visit2(OtherRootNodeType& other, VisitorOp&);
897 template<typename OtherRootNodeType, typename VisitorOp>
898 void visit2(OtherRootNodeType& other, VisitorOp&) const;
899
900private:
901 /// During topology-only construction, access is needed
902 /// to protected/private members of other template instances.
903 template<typename> friend class RootNode;
904
905 template<typename, typename, bool> friend struct RootNodeCopyHelper;
906 template<typename, typename, typename, bool> friend struct RootNodeCombineHelper;
907
908 /// Currently no-op, but can be used to define empty and delete keys for mTable
909 void initTable() {}
910 //@{
911 /// @internal Used by doVisit2().
912 void resetTable(MapType& table) { mTable.swap(table); table.clear(); }
913 void resetTable(const MapType&) const {}
914 //@}
915
916#if OPENVDB_ABI_VERSION_NUMBER < 8
917 Index getChildCount() const;
918#endif
919 Index getTileCount() const;
920 Index getActiveTileCount() const;
921 Index getInactiveTileCount() const;
922
923 /// Return a MapType key for the given coordinates.
924 static Coord coordToKey(const Coord& xyz) { return xyz & ~(ChildType::DIM - 1); }
925
926 /// Insert this node's mTable keys into the given set.
927 void insertKeys(CoordSet&) const;
928
929 /// Return @c true if this node's mTable contains the given key.
930 bool hasKey(const Coord& key) const { return mTable.find(key) != mTable.end(); }
931 //@{
932 /// @brief Look up the given key in this node's mTable.
933 /// @return an iterator pointing to the matching mTable entry or to mTable.end().
934 MapIter findKey(const Coord& key) { return mTable.find(key); }
935 MapCIter findKey(const Coord& key) const { return mTable.find(key); }
936 //@}
937 //@{
938 /// @brief Convert the given coordinates to a key and look the key up in this node's mTable.
939 /// @return an iterator pointing to the matching mTable entry or to mTable.end().
940 MapIter findCoord(const Coord& xyz) { return mTable.find(coordToKey(xyz)); }
941 MapCIter findCoord(const Coord& xyz) const { return mTable.find(coordToKey(xyz)); }
942 //@}
943 /// @brief Convert the given coordinates to a key and look the key up in this node's mTable.
944 /// @details If the key is not found, insert a background tile with that key.
945 /// @return an iterator pointing to the matching mTable entry.
946 MapIter findOrAddCoord(const Coord& xyz);
947
948 /// @brief Verify that the tree rooted at @a other has the same configuration
949 /// (levels, branching factors and node dimensions) as this tree, but allow
950 /// their ValueTypes to differ.
951 /// @throw TypeError if the other tree's configuration doesn't match this tree's.
952 template<typename OtherChildType>
953 static void enforceSameConfiguration(const RootNode<OtherChildType>& other);
954
955 /// @brief Verify that @a other has values of a type that can be converted
956 /// to this node's ValueType.
957 /// @details For example, values of type float are compatible with values of type Vec3s,
958 /// because a Vec3s can be constructed from a float. But the reverse is not true.
959 /// @throw TypeError if the other node's ValueType is not convertible into this node's.
960 template<typename OtherChildType>
961 static void enforceCompatibleValueTypes(const RootNode<OtherChildType>& other);
962
963 template<typename CombineOp, typename OtherRootNode /*= RootNode*/>
964 void doCombine2(const RootNode&, const OtherRootNode&, CombineOp&, bool prune);
965
966 template<typename RootNodeT, typename VisitorOp, typename ChildAllIterT>
967 static inline void doVisit(RootNodeT&, VisitorOp&);
968
969 template<typename RootNodeT, typename OtherRootNodeT, typename VisitorOp,
970 typename ChildAllIterT, typename OtherChildAllIterT>
971 static inline void doVisit2(RootNodeT&, OtherRootNodeT&, VisitorOp&);
972
973
974 MapType mTable;
975 ValueType mBackground;
976#if OPENVDB_ABI_VERSION_NUMBER >= 9
977 /// Transient Data (not serialized)
978 Index32 mTransientData = 0;
979#endif
980}; // end of RootNode class
981
982
983////////////////////////////////////////
984
985
986/// @brief NodeChain<RootNodeType, RootNodeType::LEVEL>::Type is a openvdb::TypeList
987/// that lists the types of the nodes of the tree rooted at RootNodeType in reverse order,
988/// from LeafNode to RootNode.
989/// @details For example, if RootNodeType is
990/// @code
991/// RootNode<InternalNode<InternalNode<LeafNode> > >
992/// @endcode
993/// then NodeChain::Type is
994/// @code
995/// openvdb::TypeList<
996/// LeafNode,
997/// InternalNode<LeafNode>,
998/// InternalNode<InternalNode<LeafNode> >,
999/// RootNode<InternalNode<InternalNode<LeafNode> > > >
1000/// @endcode
1001///
1002/// @note Use the following to get the Nth node type, where N=0 is the LeafNodeType:
1003/// @code
1004/// NodeChainType::Get<N>;
1005/// @endcode
1006template<typename HeadT, int HeadLevel>
1007 struct NodeChain {
1008 using SubtreeT = typename NodeChain<typename HeadT::ChildNodeType, HeadLevel-1>::Type;
1009 using Type = typename SubtreeT::template Append<HeadT>;
1010};
1011
1012/// Specialization to terminate NodeChain
1013template<typename HeadT>
1014 struct NodeChain<HeadT, /*HeadLevel=*/1> {
1015 using Type = TypeList<typename HeadT::ChildNodeType, HeadT>;
1016};
1017
1018
1019////////////////////////////////////////
1020
1021
1022//@{
1023/// Helper metafunction used to implement RootNode::SameConfiguration
1024/// (which, as an inner class, can't be independently specialized)
1025template<typename ChildT1, typename NodeT2>
1026 struct SameRootConfig {
1027 static const bool value = false;
1028};
1029
1030template<typename ChildT1, typename ChildT2>
1031 struct SameRootConfig<ChildT1, RootNode<ChildT2> > {
1032 static const bool value = ChildT1::template SameConfiguration<ChildT2>::value;
1033};
1034//@}
1035
1036
1037////////////////////////////////////////
1038
1039
1040template<typename ChildT>
1041inline
1042 RootNode<ChildT>::RootNode(): mBackground(zeroVal<ValueType>())
1043{
1044 this->initTable();
1045}
1046
1047
1048template<typename ChildT>
1049inline
1050 RootNode<ChildT>::RootNode(const ValueType& background): mBackground(background)
1051{
1052 this->initTable();
1053}
1054
1055
1056template<typename ChildT>
1057template<typename OtherChildType>
1058inline
1059 RootNode<ChildT>::RootNode(const RootNode<OtherChildType>& other,
1060 const ValueType& backgd, const ValueType& foregd, TopologyCopy)
1061 : mBackground(backgd)
1062#if OPENVDB_ABI_VERSION_NUMBER >= 9
1063 , mTransientData(other.mTransientData)
1064#endif
1065{
1066 using OtherRootT = RootNode<OtherChildType>;
1067
1068 enforceSameConfiguration(other);
1069
1070 const Tile bgTile(backgd, /*active=*/false), fgTile(foregd, true);
1071 this->initTable();
1072
1073 for (typename OtherRootT::MapCIter i=other.mTable.begin(), e=other.mTable.end(); i != e; ++i) {
1074 mTable[i->first] = OtherRootT::isTile(i)
1075 ? NodeStruct(OtherRootT::isTileOn(i) ? fgTile : bgTile)
1076 : NodeStruct(*(new ChildT(OtherRootT::getChild(i), backgd, foregd, TopologyCopy())));
1077 }
1078}
1079
1080
1081template<typename ChildT>
1082template<typename OtherChildType>
1083inline
1084 RootNode<ChildT>::RootNode(const RootNode<OtherChildType>& other,
1085 const ValueType& backgd, TopologyCopy)
1086 : mBackground(backgd)
1087#if OPENVDB_ABI_VERSION_NUMBER >= 9
1088 , mTransientData(other.mTransientData)
1089#endif
1090{
1091 using OtherRootT = RootNode<OtherChildType>;
1092
1093 enforceSameConfiguration(other);
1094
1095 const Tile bgTile(backgd, /*active=*/false), fgTile(backgd, true);
1096 this->initTable();
1097 for (typename OtherRootT::MapCIter i=other.mTable.begin(), e=other.mTable.end(); i != e; ++i) {
1098 mTable[i->first] = OtherRootT::isTile(i)
1099 ? NodeStruct(OtherRootT::isTileOn(i) ? fgTile : bgTile)
1100 : NodeStruct(*(new ChildT(OtherRootT::getChild(i), backgd, TopologyCopy())));
1101 }
1102}
1103
1104
1105////////////////////////////////////////
1106
1107
1108// This helper class is a friend of RootNode and is needed so that assignment
1109// with value conversion can be specialized for compatible and incompatible
1110// pairs of RootNode types.
1111template<typename RootT, typename OtherRootT, bool Compatible = false>
1112 struct RootNodeCopyHelper
1113{
1114 static inline void copyWithValueConversion(RootT& self, const OtherRootT& other)
1115 {
1116 // If the two root nodes have different configurations or incompatible ValueTypes,
1117 // throw an exception.
1118 self.enforceSameConfiguration(other);
1119 self.enforceCompatibleValueTypes(other);
1120 // One of the above two tests should throw, so we should never get here:
1121 std::ostringstream ostr;
1122 ostr << "cannot convert a " << typeid(OtherRootT).name()
1123 << " to a " << typeid(RootT).name();
1124 OPENVDB_THROW(TypeError, ostr.str());
1125 }
1126};
1127
1128// Specialization for root nodes of compatible types
1129template<typename RootT, typename OtherRootT>
1130 struct RootNodeCopyHelper<RootT, OtherRootT, /*Compatible=*/true>
1131{
1132 static inline void copyWithValueConversion(RootT& self, const OtherRootT& other)
1133 {
1134 using ValueT = typename RootT::ValueType;
1135 using ChildT = typename RootT::ChildNodeType;
1136 using NodeStruct = typename RootT::NodeStruct;
1137 using Tile = typename RootT::Tile;
1138 using OtherValueT = typename OtherRootT::ValueType;
1139 using OtherMapCIter = typename OtherRootT::MapCIter;
1140 using OtherTile = typename OtherRootT::Tile;
1141
1142 struct Local {
1143 /// @todo Consider using a value conversion functor passed as an argument instead.
1144 static inline ValueT convertValue(const OtherValueT& val) { return ValueT(val); }
1145 };
1146
1147 self.mBackground = Local::convertValue(other.mBackground);
1148#if OPENVDB_ABI_VERSION_NUMBER >= 9
1149 self.mTransientData = other.mTransientData;
1150#endif
1151
1152 self.clear();
1153 self.initTable();
1154
1155 for (OtherMapCIter i = other.mTable.begin(), e = other.mTable.end(); i != e; ++i) {
1156 if (other.isTile(i)) {
1157 // Copy the other node's tile, but convert its value to this node's ValueType.
1158 const OtherTile& otherTile = other.getTile(i);
1159 self.mTable[i->first] = NodeStruct(
1160 Tile(Local::convertValue(otherTile.value), otherTile.active));
1161 } else {
1162 // Copy the other node's child, but convert its values to this node's ValueType.
1163 self.mTable[i->first] = NodeStruct(*(new ChildT(other.getChild(i))));
1164 }
1165 }
1166 }
1167};
1168
1169
1170// Overload for root nodes of the same type as this node
1171template<typename ChildT>
1172inline RootNode<ChildT>&
1173RootNode<ChildT>::operator=(const RootNode& other)
1174{
1175 if (&other != this) {
1176 mBackground = other.mBackground;
1177#if OPENVDB_ABI_VERSION_NUMBER >= 9
1178 mTransientData = other.mTransientData;
1179#endif
1180
1181 this->clear();
1182 this->initTable();
1183
1184 for (MapCIter i = other.mTable.begin(), e = other.mTable.end(); i != e; ++i) {
1185 mTable[i->first] =
1186 isTile(i) ? NodeStruct(getTile(i)) : NodeStruct(*(new ChildT(getChild(i))));
1187 }
1188 }
1189 return *this;
1190}
1191
1192// Overload for root nodes of different types
1193template<typename ChildT>
1194template<typename OtherChildType>
1195inline RootNode<ChildT>&
1196 RootNode<ChildT>::operator=(const RootNode<OtherChildType>& other)
1197{
1198 using OtherRootT = RootNode<OtherChildType>;
1199 using OtherValueT = typename OtherRootT::ValueType;
1200 static const bool compatible = (SameConfiguration<OtherRootT>::value
1201 && CanConvertType</*from=*/OtherValueT, /*to=*/ValueType>::value);
1202 RootNodeCopyHelper<RootNode, OtherRootT, compatible>::copyWithValueConversion(*this, other);
1203 return *this;
1204}
1205
1206
1207////////////////////////////////////////
1208
1209template<typename ChildT>
1210inline void
1211RootNode<ChildT>::setBackground(const ValueType& background, bool updateChildNodes)
1212{
1213 if (math::isExactlyEqual(background, mBackground)) return;
1214
1215 if (updateChildNodes) {
1216 // Traverse the tree, replacing occurrences of mBackground with background
1217 // and -mBackground with -background.
1218 for (MapIter iter=mTable.begin(); iter!=mTable.end(); ++iter) {
1219 ChildT *child = iter->second.child;
1220 if (child) {
1221 child->resetBackground(/*old=*/mBackground, /*new=*/background);
1222 } else {
1223 Tile& tile = getTile(iter);
1224 if (tile.active) continue;//only change inactive tiles
1225 if (math::isApproxEqual(tile.value, mBackground)) {
1226 tile.value = background;
1227 } else if (math::isApproxEqual(tile.value, math::negative(mBackground))) {
1228 tile.value = math::negative(background);
1229 }
1230 }
1231 }
1232 }
1233 mBackground = background;
1234}
1235
1236template<typename ChildT>
1237inline bool
1238RootNode<ChildT>::isBackgroundTile(const Tile& tile) const
1239{
1240 return !tile.active && math::isApproxEqual(tile.value, mBackground);
1241}
1242
1243template<typename ChildT>
1244inline bool
1245 RootNode<ChildT>::isBackgroundTile(const MapIter& iter) const
1246{
1247 return isTileOff(iter) && math::isApproxEqual(getTile(iter).value, mBackground);
1248}
1249
1250template<typename ChildT>
1251inline bool
1252 RootNode<ChildT>::isBackgroundTile(const MapCIter& iter) const
1253{
1254 return isTileOff(iter) && math::isApproxEqual(getTile(iter).value, mBackground);
1255}
1256
1257
1258template<typename ChildT>
1259inline size_t
1260RootNode<ChildT>::numBackgroundTiles() const
1261{
1262 size_t count = 0;
1263 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1264 if (this->isBackgroundTile(i)) ++count;
1265 }
1266 return count;
1267}
1268
1269
1270template<typename ChildT>
1271inline size_t
1272RootNode<ChildT>::eraseBackgroundTiles()
1273{
1274 std::set<Coord> keysToErase;
1275 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1276 if (this->isBackgroundTile(i)) keysToErase.insert(i->first);
1277 }
1278 for (std::set<Coord>::iterator i = keysToErase.begin(), e = keysToErase.end(); i != e; ++i) {
1279 mTable.erase(*i);
1280 }
1281 return keysToErase.size();
1282}
1283
1284
1285////////////////////////////////////////
1286
1287
1288template<typename ChildT>
1289inline void
1290 RootNode<ChildT>::insertKeys(CoordSet& keys) const
1291{
1292 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1293 keys.insert(i->first);
1294 }
1295}
1296
1297
1298template<typename ChildT>
1299inline typename RootNode<ChildT>::MapIter
1300RootNode<ChildT>::findOrAddCoord(const Coord& xyz)
1301{
1302 const Coord key = coordToKey(xyz);
1303 std::pair<MapIter, bool> result = mTable.insert(
1304 typename MapType::value_type(key, NodeStruct(Tile(mBackground, /*active=*/false))));
1305 return result.first;
1306}
1307
1308
1309template<typename ChildT>
1310inline bool
1311RootNode<ChildT>::expand(const Coord& xyz)
1312{
1313 const Coord key = coordToKey(xyz);
1314 std::pair<MapIter, bool> result = mTable.insert(
1315 typename MapType::value_type(key, NodeStruct(Tile(mBackground, /*active=*/false))));
1316 return result.second; // return true if the key did not already exist
1317}
1318
1319
1320////////////////////////////////////////
1321
1322
1323template<typename ChildT>
1324inline void
1325RootNode<ChildT>::getNodeLog2Dims(std::vector<Index>& dims)
1326{
1327 dims.push_back(0); // magic number; RootNode has no Log2Dim
1328 ChildT::getNodeLog2Dims(dims);
1329}
1330
1331
1332template<typename ChildT>
1333inline Coord
1334RootNode<ChildT>::getMinIndex() const
1335{
1336 return mTable.empty() ? Coord(0) : mTable.begin()->first;
1337}
1338
1339template<typename ChildT>
1340inline Coord
1341RootNode<ChildT>::getMaxIndex() const
1342{
1343 return mTable.empty() ? Coord(0) : mTable.rbegin()->first + Coord(ChildT::DIM - 1);
1344}
1345
1346
1347template<typename ChildT>
1348inline void
1349RootNode<ChildT>::getIndexRange(CoordBBox& bbox) const
1350{
1351 bbox.min() = this->getMinIndex();
1352 bbox.max() = this->getMaxIndex();
1353}
1354
1355
1356////////////////////////////////////////
1357
1358
1359template<typename ChildT>
1360template<typename OtherChildType>
1361inline bool
1362RootNode<ChildT>::hasSameTopology(const RootNode<OtherChildType>& other) const
1363{
1364 using OtherRootT = RootNode<OtherChildType>;
1365 using OtherMapT = typename OtherRootT::MapType;
1366 using OtherIterT = typename OtherRootT::MapIter;
1367 using OtherCIterT = typename OtherRootT::MapCIter;
1368
1369 if (!hasSameConfiguration(other)) return false;
1370
1371 // Create a local copy of the other node's table.
1372 OtherMapT copyOfOtherTable = other.mTable;
1373
1374 // For each entry in this node's table...
1375 for (MapCIter thisIter = mTable.begin(); thisIter != mTable.end(); ++thisIter) {
1376 if (this->isBackgroundTile(thisIter)) continue; // ignore background tiles
1377
1378 // Fail if there is no corresponding entry in the other node's table.
1379 OtherCIterT otherIter = other.findKey(thisIter->first);
1380 if (otherIter == other.mTable.end()) return false;
1381
1382 // Fail if this entry is a tile and the other is a child or vice-versa.
1383 if (isChild(thisIter)) {//thisIter points to a child
1384 if (OtherRootT::isTile(otherIter)) return false;
1385 // Fail if both entries are children, but the children have different topology.
1386 if (!getChild(thisIter).hasSameTopology(&OtherRootT::getChild(otherIter))) return false;
1387 } else {//thisIter points to a tile
1388 if (OtherRootT::isChild(otherIter)) return false;
1389 if (getTile(thisIter).active != OtherRootT::getTile(otherIter).active) return false;
1390 }
1391
1392 // Remove tiles and child nodes with matching topology from
1393 // the copy of the other node's table. This is required since
1394 // the two root tables can include an arbitrary number of
1395 // background tiles and still have the same topology!
1396 copyOfOtherTable.erase(otherIter->first);
1397 }
1398 // Fail if the remaining entries in copyOfOtherTable are not all background tiles.
1399 for (OtherIterT i = copyOfOtherTable.begin(), e = copyOfOtherTable.end(); i != e; ++i) {
1400 if (!other.isBackgroundTile(i)) return false;
1401 }
1402 return true;
1403}
1404
1405
1406template<typename ChildT>
1407template<typename OtherChildType>
1408inline bool
1409RootNode<ChildT>::hasSameConfiguration(const RootNode<OtherChildType>&)
1410{
1411 std::vector<Index> thisDims, otherDims;
1412 RootNode::getNodeLog2Dims(thisDims);
1413 RootNode<OtherChildType>::getNodeLog2Dims(otherDims);
1414 return (thisDims == otherDims);
1415}
1416
1417
1418template<typename ChildT>
1419template<typename OtherChildType>
1420inline void
1421 RootNode<ChildT>::enforceSameConfiguration(const RootNode<OtherChildType>&)
1422{
1423 std::vector<Index> thisDims, otherDims;
1424 RootNode::getNodeLog2Dims(thisDims);
1425 RootNode<OtherChildType>::getNodeLog2Dims(otherDims);
1426 if (thisDims != otherDims) {
1427 std::ostringstream ostr;
1428 ostr << "grids have incompatible configurations (" << thisDims[0];
1429 for (size_t i = 1, N = thisDims.size(); i < N; ++i) ostr << " x " << thisDims[i];
1430 ostr << " vs. " << otherDims[0];
1431 for (size_t i = 1, N = otherDims.size(); i < N; ++i) ostr << " x " << otherDims[i];
1432 ostr << ")";
1433 OPENVDB_THROW(TypeError, ostr.str());
1434 }
1435}
1436
1437
1438template<typename ChildT>
1439template<typename OtherChildType>
1440inline bool
1441RootNode<ChildT>::hasCompatibleValueType(const RootNode<OtherChildType>&)
1442{
1443 using OtherValueType = typename OtherChildType::ValueType;
1444 return CanConvertType</*from=*/OtherValueType, /*to=*/ValueType>::value;
1445}
1446
1447
1448template<typename ChildT>
1449template<typename OtherChildType>
1450inline void
1451 RootNode<ChildT>::enforceCompatibleValueTypes(const RootNode<OtherChildType>&)
1452{
1453 using OtherValueType = typename OtherChildType::ValueType;
1454 if (!CanConvertType</*from=*/OtherValueType, /*to=*/ValueType>::value) {
1455 std::ostringstream ostr;
1456 ostr << "values of type " << typeNameAsString<OtherValueType>()
1457 << " cannot be converted to type " << typeNameAsString<ValueType>();
1458 OPENVDB_THROW(TypeError, ostr.str());
1459 }
1460}
1461
1462
1463////////////////////////////////////////
1464
1465
1466template<typename ChildT>
1467inline Index64
1468RootNode<ChildT>::memUsage() const
1469{
1470 Index64 sum = sizeof(*this);
1471 for (MapCIter iter=mTable.begin(); iter!=mTable.end(); ++iter) {
1472 if (const ChildT *child = iter->second.child) {
1473 sum += child->memUsage();
1474 }
1475 }
1476 return sum;
1477}
1478
1479
1480template<typename ChildT>
1481inline void
1482RootNode<ChildT>::clear()
1483{
1484 for (MapIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1485 delete i->second.child;
1486 }
1487 mTable.clear();
1488}
1489
1490
1491template<typename ChildT>
1492inline void
1493RootNode<ChildT>::evalActiveBoundingBox(CoordBBox& bbox, bool visitVoxels) const
1494{
1495 for (MapCIter iter=mTable.begin(); iter!=mTable.end(); ++iter) {
1496 if (const ChildT *child = iter->second.child) {
1497 child->evalActiveBoundingBox(bbox, visitVoxels);
1498 } else if (isTileOn(iter)) {
1499 bbox.expand(iter->first, ChildT::DIM);
1500 }
1501 }
1502}
1503
1504
1505#if OPENVDB_ABI_VERSION_NUMBER < 8
1506template<typename ChildT>
1507inline Index
1508 RootNode<ChildT>::getChildCount() const {
1509 return this->childCount();
1510}
1511#endif
1512
1513
1514template<typename ChildT>
1515inline Index
1516RootNode<ChildT>::getTileCount() const
1517{
1518 Index sum = 0;
1519 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1520 if (isTile(i)) ++sum;
1521 }
1522 return sum;
1523}
1524
1525
1526template<typename ChildT>
1527inline Index
1528RootNode<ChildT>::getActiveTileCount() const
1529{
1530 Index sum = 0;
1531 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1532 if (isTileOn(i)) ++sum;
1533 }
1534 return sum;
1535}
1536
1537
1538template<typename ChildT>
1539inline Index
1540RootNode<ChildT>::getInactiveTileCount() const
1541{
1542 Index sum = 0;
1543 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1544 if (isTileOff(i)) ++sum;
1545 }
1546 return sum;
1547}
1548
1549
1550template<typename ChildT>
1551inline Index32
1552RootNode<ChildT>::leafCount() const
1553{
1554 Index32 sum = 0;
1555 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1556 if (isChild(i)) sum += getChild(i).leafCount();
1557 }
1558 return sum;
1559}
1560
1561
1562template<typename ChildT>
1563inline Index32
1564RootNode<ChildT>::nonLeafCount() const
1565{
1566 Index32 sum = 1;
1567 if (ChildT::LEVEL != 0) {
1568 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1569 if (isChild(i)) sum += getChild(i).nonLeafCount();
1570 }
1571 }
1572 return sum;
1573}
1574
1575
1576template<typename ChildT>
1577inline Index32
1578RootNode<ChildT>::childCount() const
1579{
1580 Index sum = 0;
1581 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1582 if (isChild(i)) ++sum;
1583 }
1584 return sum;
1585}
1586
1587
1588template<typename ChildT>
1589inline Index64
1590RootNode<ChildT>::onVoxelCount() const
1591{
1592 Index64 sum = 0;
1593 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1594 if (isChild(i)) {
1595 sum += getChild(i).onVoxelCount();
1596 } else if (isTileOn(i)) {
1597 sum += ChildT::NUM_VOXELS;
1598 }
1599 }
1600 return sum;
1601}
1602
1603
1604template<typename ChildT>
1605inline Index64
1606RootNode<ChildT>::offVoxelCount() const
1607{
1608 Index64 sum = 0;
1609 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1610 if (isChild(i)) {
1611 sum += getChild(i).offVoxelCount();
1612 } else if (isTileOff(i) && !this->isBackgroundTile(i)) {
1613 sum += ChildT::NUM_VOXELS;
1614 }
1615 }
1616 return sum;
1617}
1618
1619
1620template<typename ChildT>
1621inline Index64
1622RootNode<ChildT>::onLeafVoxelCount() const
1623{
1624 Index64 sum = 0;
1625 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1626 if (isChild(i)) sum += getChild(i).onLeafVoxelCount();
1627 }
1628 return sum;
1629}
1630
1631
1632template<typename ChildT>
1633inline Index64
1634RootNode<ChildT>::offLeafVoxelCount() const
1635{
1636 Index64 sum = 0;
1637 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1638 if (isChild(i)) sum += getChild(i).offLeafVoxelCount();
1639 }
1640 return sum;
1641}
1642
1643template<typename ChildT>
1644inline Index64
1645RootNode<ChildT>::onTileCount() const
1646{
1647 Index64 sum = 0;
1648 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1649 if (isChild(i)) {
1650 sum += getChild(i).onTileCount();
1651 } else if (isTileOn(i)) {
1652 sum += 1;
1653 }
1654 }
1655 return sum;
1656}
1657
1658template<typename ChildT>
1659inline void
1660RootNode<ChildT>::nodeCount(std::vector<Index32> &vec) const
1661{
1662 assert(vec.size() > LEVEL);
1663 Index32 sum = 0;
1664 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1665 if (isChild(i)) {
1666 ++sum;
1667 getChild(i).nodeCount(vec);
1668 }
1669 }
1670 vec[LEVEL] = 1;// one root node
1671 vec[ChildNodeType::LEVEL] = sum;
1672}
1673
1674////////////////////////////////////////
1675
1676
1677template<typename ChildT>
1678inline bool
1679RootNode<ChildT>::isValueOn(const Coord& xyz) const
1680{
1681 MapCIter iter = this->findCoord(xyz);
1682 if (iter == mTable.end() || isTileOff(iter)) return false;
1683 return isTileOn(iter) ? true : getChild(iter).isValueOn(xyz);
1684}
1685
1686template<typename ChildT>
1687inline bool
1688RootNode<ChildT>::hasActiveTiles() const
1689{
1690 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
1691 if (isChild(i) ? getChild(i).hasActiveTiles() : getTile(i).active) return true;
1692 }
1693 return false;
1694}
1695
1696template<typename ChildT>
1697template<typename AccessorT>
1698inline bool
1699RootNode<ChildT>::isValueOnAndCache(const Coord& xyz, AccessorT& acc) const
1700{
1701 MapCIter iter = this->findCoord(xyz);
1702 if (iter == mTable.end() || isTileOff(iter)) return false;
1703 if (isTileOn(iter)) return true;
1704 acc.insert(xyz, &getChild(iter));
1705 return getChild(iter).isValueOnAndCache(xyz, acc);
1706}
1707
1708
1709template<typename ChildT>
1710inline const typename ChildT::ValueType&
1711RootNode<ChildT>::getValue(const Coord& xyz) const
1712{
1713 MapCIter iter = this->findCoord(xyz);
1714 return iter == mTable.end() ? mBackground
1715 : (isTile(iter) ? getTile(iter).value : getChild(iter).getValue(xyz));
1716}
1717
1718template<typename ChildT>
1719template<typename AccessorT>
1720inline const typename ChildT::ValueType&
1721 RootNode<ChildT>::getValueAndCache(const Coord& xyz, AccessorT& acc) const
1722{
1723 MapCIter iter = this->findCoord(xyz);
1724 if (iter == mTable.end()) return mBackground;
1725 if (isChild(iter)) {
1726 acc.insert(xyz, &getChild(iter));
1727 return getChild(iter).getValueAndCache(xyz, acc);
1728 }
1729 return getTile(iter).value;
1730}
1731
1732
1733template<typename ChildT>
1734inline int
1735RootNode<ChildT>::getValueDepth(const Coord& xyz) const
1736{
1737 MapCIter iter = this->findCoord(xyz);
1738 return iter == mTable.end() ? -1
1739 : (isTile(iter) ? 0 : int(LEVEL) - int(getChild(iter).getValueLevel(xyz)));
1740}
1741
1742template<typename ChildT>
1743template<typename AccessorT>
1744inline int
1745RootNode<ChildT>::getValueDepthAndCache(const Coord& xyz, AccessorT& acc) const
1746{
1747 MapCIter iter = this->findCoord(xyz);
1748 if (iter == mTable.end()) return -1;
1749 if (isTile(iter)) return 0;
1750 acc.insert(xyz, &getChild(iter));
1751 return int(LEVEL) - int(getChild(iter).getValueLevelAndCache(xyz, acc));
1752}
1753
1754
1755template<typename ChildT>
1756inline void
1757RootNode<ChildT>::setValueOff(const Coord& xyz)
1758{
1759 MapIter iter = this->findCoord(xyz);
1760 if (iter != mTable.end() && !isTileOff(iter)) {
1761 if (isTileOn(iter)) {
1762 setChild(iter, *new ChildT(xyz, getTile(iter).value, /*active=*/true));
1763 }
1764 getChild(iter).setValueOff(xyz);
1765 }
1766}
1767
1768
1769template<typename ChildT>
1770inline void
1771RootNode<ChildT>::setActiveState(const Coord& xyz, bool on)
1772{
1773 ChildT* child = nullptr;
1774 MapIter iter = this->findCoord(xyz);
1775 if (iter == mTable.end()) {
1776 if (on) {
1777 child = new ChildT(xyz, mBackground);
1778 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
1779 } else {
1780 // Nothing to do; (x, y, z) is background and therefore already inactive.
1781 }
1782 } else if (isChild(iter)) {
1783 child = &getChild(iter);
1784 } else if (on != getTile(iter).active) {
1785 child = new ChildT(xyz, getTile(iter).value, !on);
1786 setChild(iter, *child);
1787 }
1788 if (child) child->setActiveState(xyz, on);
1789}
1790
1791template<typename ChildT>
1792template<typename AccessorT>
1793inline void
1794RootNode<ChildT>::setActiveStateAndCache(const Coord& xyz, bool on, AccessorT& acc)
1795{
1796 ChildT* child = nullptr;
1797 MapIter iter = this->findCoord(xyz);
1798 if (iter == mTable.end()) {
1799 if (on) {
1800 child = new ChildT(xyz, mBackground);
1801 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
1802 } else {
1803 // Nothing to do; (x, y, z) is background and therefore already inactive.
1804 }
1805 } else if (isChild(iter)) {
1806 child = &getChild(iter);
1807 } else if (on != getTile(iter).active) {
1808 child = new ChildT(xyz, getTile(iter).value, !on);
1809 setChild(iter, *child);
1810 }
1811 if (child) {
1812 acc.insert(xyz, child);
1813 child->setActiveStateAndCache(xyz, on, acc);
1814 }
1815}
1816
1817
1818template<typename ChildT>
1819inline void
1820 RootNode<ChildT>::setValueOff(const Coord& xyz, const ValueType& value)
1821{
1822 ChildT* child = nullptr;
1823 MapIter iter = this->findCoord(xyz);
1824 if (iter == mTable.end()) {
1825 if (!math::isExactlyEqual(mBackground, value)) {
1826 child = new ChildT(xyz, mBackground);
1827 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
1828 }
1829 } else if (isChild(iter)) {
1830 child = &getChild(iter);
1831 } else if (isTileOn(iter) || !math::isExactlyEqual(getTile(iter).value, value)) {
1832 child = new ChildT(xyz, getTile(iter).value, isTileOn(iter));
1833 setChild(iter, *child);
1834 }
1835 if (child) child->setValueOff(xyz, value);
1836}
1837
1838template<typename ChildT>
1839template<typename AccessorT>
1840inline void
1841RootNode<ChildT>::setValueOffAndCache(const Coord& xyz, const ValueType& value, AccessorT& acc)
1842{
1843 ChildT* child = nullptr;
1844 MapIter iter = this->findCoord(xyz);
1845 if (iter == mTable.end()) {
1846 if (!math::isExactlyEqual(mBackground, value)) {
1847 child = new ChildT(xyz, mBackground);
1848 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
1849 }
1850 } else if (isChild(iter)) {
1851 child = &getChild(iter);
1852 } else if (isTileOn(iter) || !math::isExactlyEqual(getTile(iter).value, value)) {
1853 child = new ChildT(xyz, getTile(iter).value, isTileOn(iter));
1854 setChild(iter, *child);
1855 }
1856 if (child) {
1857 acc.insert(xyz, child);
1858 child->setValueOffAndCache(xyz, value, acc);
1859 }
1860}
1861
1862
1863template<typename ChildT>
1864inline void
1865RootNode<ChildT>::setValueOn(const Coord& xyz, const ValueType& value)
1866{
1867 ChildT* child = nullptr;
1868 MapIter iter = this->findCoord(xyz);
1869 if (iter == mTable.end()) {
1870 child = new ChildT(xyz, mBackground);
1871 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
1872 } else if (isChild(iter)) {
1873 child = &getChild(iter);
1874 } else if (isTileOff(iter) || !math::isExactlyEqual(getTile(iter).value, value)) {
1875 child = new ChildT(xyz, getTile(iter).value, isTileOn(iter));
1876 setChild(iter, *child);
1877 }
1878 if (child) child->setValueOn(xyz, value);
1879}
1880
1881template<typename ChildT>
1882template<typename AccessorT>
1883inline void
1884RootNode<ChildT>::setValueAndCache(const Coord& xyz, const ValueType& value, AccessorT& acc)
1885{
1886 ChildT* child = nullptr;
1887 MapIter iter = this->findCoord(xyz);
1888 if (iter == mTable.end()) {
1889 child = new ChildT(xyz, mBackground);
1890 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
1891 } else if (isChild(iter)) {
1892 child = &getChild(iter);
1893 } else if (isTileOff(iter) || !math::isExactlyEqual(getTile(iter).value, value)) {
1894 child = new ChildT(xyz, getTile(iter).value, isTileOn(iter));
1895 setChild(iter, *child);
1896 }
1897 if (child) {
1898 acc.insert(xyz, child);
1899 child->setValueAndCache(xyz, value, acc);
1900 }
1901}
1902
1903
1904template<typename ChildT>
1905inline void
1906RootNode<ChildT>::setValueOnly(const Coord& xyz, const ValueType& value)
1907{
1908 ChildT* child = nullptr;
1909 MapIter iter = this->findCoord(xyz);
1910 if (iter == mTable.end()) {
1911 child = new ChildT(xyz, mBackground);
1912 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
1913 } else if (isChild(iter)) {
1914 child = &getChild(iter);
1915 } else if (!math::isExactlyEqual(getTile(iter).value, value)) {
1916 child = new ChildT(xyz, getTile(iter).value, isTileOn(iter));
1917 setChild(iter, *child);
1918 }
1919 if (child) child->setValueOnly(xyz, value);
1920}
1921
1922template<typename ChildT>
1923template<typename AccessorT>
1924inline void
1925RootNode<ChildT>::setValueOnlyAndCache(const Coord& xyz, const ValueType& value, AccessorT& acc)
1926{
1927 ChildT* child = nullptr;
1928 MapIter iter = this->findCoord(xyz);
1929 if (iter == mTable.end()) {
1930 child = new ChildT(xyz, mBackground);
1931 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
1932 } else if (isChild(iter)) {
1933 child = &getChild(iter);
1934 } else if (!math::isExactlyEqual(getTile(iter).value, value)) {
1935 child = new ChildT(xyz, getTile(iter).value, isTileOn(iter));
1936 setChild(iter, *child);
1937 }
1938 if (child) {
1939 acc.insert(xyz, child);
1940 child->setValueOnlyAndCache(xyz, value, acc);
1941 }
1942}
1943
1944
1945template<typename ChildT>
1946template<typename ModifyOp>
1947inline void
1948RootNode<ChildT>::modifyValue(const Coord& xyz, const ModifyOp& op)
1949{
1950 ChildT* child = nullptr;
1951 MapIter iter = this->findCoord(xyz);
1952 if (iter == mTable.end()) {
1953 child = new ChildT(xyz, mBackground);
1954 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
1955 } else if (isChild(iter)) {
1956 child = &getChild(iter);
1957 } else {
1958 // Need to create a child if the tile is inactive,
1959 // in order to activate voxel (x, y, z).
1960 bool createChild = isTileOff(iter);
1961 if (!createChild) {
1962 // Need to create a child if applying the functor
1963 // to the tile value produces a different value.
1964 const ValueType& tileVal = getTile(iter).value;
1965 ValueType modifiedVal = tileVal;
1966 op(modifiedVal);
1967 createChild = !math::isExactlyEqual(tileVal, modifiedVal);
1968 }
1969 if (createChild) {
1970 child = new ChildT(xyz, getTile(iter).value, isTileOn(iter));
1971 setChild(iter, *child);
1972 }
1973 }
1974 if (child) child->modifyValue(xyz, op);
1975}
1976
1977template<typename ChildT>
1978template<typename ModifyOp, typename AccessorT>
1979inline void
1980RootNode<ChildT>::modifyValueAndCache(const Coord& xyz, const ModifyOp& op, AccessorT& acc)
1981{
1982 ChildT* child = nullptr;
1983 MapIter iter = this->findCoord(xyz);
1984 if (iter == mTable.end()) {
1985 child = new ChildT(xyz, mBackground);
1986 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
1987 } else if (isChild(iter)) {
1988 child = &getChild(iter);
1989 } else {
1990 // Need to create a child if the tile is inactive,
1991 // in order to activate voxel (x, y, z).
1992 bool createChild = isTileOff(iter);
1993 if (!createChild) {
1994 // Need to create a child if applying the functor
1995 // to the tile value produces a different value.
1996 const ValueType& tileVal = getTile(iter).value;
1997 ValueType modifiedVal = tileVal;
1998 op(modifiedVal);
1999 createChild = !math::isExactlyEqual(tileVal, modifiedVal);
2000 }
2001 if (createChild) {
2002 child = new ChildT(xyz, getTile(iter).value, isTileOn(iter));
2003 setChild(iter, *child);
2004 }
2005 }
2006 if (child) {
2007 acc.insert(xyz, child);
2008 child->modifyValueAndCache(xyz, op, acc);
2009 }
2010}
2011
2012
2013template<typename ChildT>
2014template<typename ModifyOp>
2015inline void
2016RootNode<ChildT>::modifyValueAndActiveState(const Coord& xyz, const ModifyOp& op)
2017{
2018 ChildT* child = nullptr;
2019 MapIter iter = this->findCoord(xyz);
2020 if (iter == mTable.end()) {
2021 child = new ChildT(xyz, mBackground);
2022 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
2023 } else if (isChild(iter)) {
2024 child = &getChild(iter);
2025 } else {
2026 const Tile& tile = getTile(iter);
2027 bool modifiedState = tile.active;
2028 ValueType modifiedVal = tile.value;
2029 op(modifiedVal, modifiedState);
2030 // Need to create a child if applying the functor to the tile
2031 // produces a different value or active state.
2032 if (modifiedState != tile.active || !math::isExactlyEqual(modifiedVal, tile.value)) {
2033 child = new ChildT(xyz, tile.value, tile.active);
2034 setChild(iter, *child);
2035 }
2036 }
2037 if (child) child->modifyValueAndActiveState(xyz, op);
2038}
2039
2040template<typename ChildT>
2041template<typename ModifyOp, typename AccessorT>
2042inline void
2043RootNode<ChildT>::modifyValueAndActiveStateAndCache(
2044 const Coord& xyz, const ModifyOp& op, AccessorT& acc)
2045{
2046 ChildT* child = nullptr;
2047 MapIter iter = this->findCoord(xyz);
2048 if (iter == mTable.end()) {
2049 child = new ChildT(xyz, mBackground);
2050 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
2051 } else if (isChild(iter)) {
2052 child = &getChild(iter);
2053 } else {
2054 const Tile& tile = getTile(iter);
2055 bool modifiedState = tile.active;
2056 ValueType modifiedVal = tile.value;
2057 op(modifiedVal, modifiedState);
2058 // Need to create a child if applying the functor to the tile
2059 // produces a different value or active state.
2060 if (modifiedState != tile.active || !math::isExactlyEqual(modifiedVal, tile.value)) {
2061 child = new ChildT(xyz, tile.value, tile.active);
2062 setChild(iter, *child);
2063 }
2064 }
2065 if (child) {
2066 acc.insert(xyz, child);
2067 child->modifyValueAndActiveStateAndCache(xyz, op, acc);
2068 }
2069}
2070
2071
2072template<typename ChildT>
2073inline bool
2074RootNode<ChildT>::probeValue(const Coord& xyz, ValueType& value) const
2075{
2076 MapCIter iter = this->findCoord(xyz);
2077 if (iter == mTable.end()) {
2078 value = mBackground;
2079 return false;
2080 } else if (isChild(iter)) {
2081 return getChild(iter).probeValue(xyz, value);
2082 }
2083 value = getTile(iter).value;
2084 return isTileOn(iter);
2085}
2086
2087template<typename ChildT>
2088template<typename AccessorT>
2089inline bool
2090RootNode<ChildT>::probeValueAndCache(const Coord& xyz, ValueType& value, AccessorT& acc) const
2091{
2092 MapCIter iter = this->findCoord(xyz);
2093 if (iter == mTable.end()) {
2094 value = mBackground;
2095 return false;
2096 } else if (isChild(iter)) {
2097 acc.insert(xyz, &getChild(iter));
2098 return getChild(iter).probeValueAndCache(xyz, value, acc);
2099 }
2100 value = getTile(iter).value;
2101 return isTileOn(iter);
2102}
2103
2104
2105////////////////////////////////////////
2106
2107
2108template<typename ChildT>
2109inline void
2110RootNode<ChildT>::fill(const CoordBBox& bbox, const ValueType& value, bool active)
2111{
2112 if (bbox.empty()) return;
2113
2114 // Iterate over the fill region in axis-aligned, tile-sized chunks.
2115 // (The first and last chunks along each axis might be smaller than a tile.)
2116 Coord xyz, tileMax;
2117 for (int x = bbox.min().x(); x <= bbox.max().x(); x = tileMax.x() + 1) {
2118 xyz.setX(x);
2119 for (int y = bbox.min().y(); y <= bbox.max().y(); y = tileMax.y() + 1) {
2120 xyz.setY(y);
2121 for (int z = bbox.min().z(); z <= bbox.max().z(); z = tileMax.z() + 1) {
2122 xyz.setZ(z);
2123
2124 // Get the bounds of the tile that contains voxel (x, y, z).
2125 Coord tileMin = coordToKey(xyz);
2126 tileMax = tileMin.offsetBy(ChildT::DIM - 1);
2127
2128 if (xyz != tileMin || Coord::lessThan(bbox.max(), tileMax)) {
2129 // If the box defined by (xyz, bbox.max()) doesn't completely enclose
2130 // the tile to which xyz belongs, create a child node (or retrieve
2131 // the existing one).
2132 ChildT* child = nullptr;
2133 MapIter iter = this->findKey(tileMin);
2134 if (iter == mTable.end()) {
2135 // No child or tile exists. Create a child and initialize it
2136 // with the background value.
2137 child = new ChildT(xyz, mBackground);
2138 mTable[tileMin] = NodeStruct(*child);
2139 } else if (isTile(iter)) {
2140 // Replace the tile with a newly-created child that is filled
2141 // with the tile's value and active state.
2142 const Tile& tile = getTile(iter);
2143 child = new ChildT(xyz, tile.value, tile.active);
2144 mTable[tileMin] = NodeStruct(*child);
2145 } else if (isChild(iter)) {
2146 child = &getChild(iter);
2147 }
2148 // Forward the fill request to the child.
2149 if (child) {
2150 const Coord tmp = Coord::minComponent(bbox.max(), tileMax);
2151 child->fill(CoordBBox(xyz, tmp), value, active);
2152 }
2153 } else {
2154 // If the box given by (xyz, bbox.max()) completely encloses
2155 // the tile to which xyz belongs, create the tile (if it
2156 // doesn't already exist) and give it the fill value.
2157 MapIter iter = this->findOrAddCoord(tileMin);
2158 setTile(iter, Tile(value, active));
2159 }
2160 }
2161 }
2162 }
2163}
2164
2165
2166template<typename ChildT>
2167inline void
2168RootNode<ChildT>::denseFill(const CoordBBox& bbox, const ValueType& value, bool active)
2169{
2170 if (bbox.empty()) return;
2171
2172 if (active && mTable.empty()) {
2173 // If this tree is empty, then a sparse fill followed by (threaded)
2174 // densification of active tiles is the more efficient approach.
2175 sparseFill(bbox, value, active);
2176 voxelizeActiveTiles(/*threaded=*/true);
2177 return;
2178 }
2179
2180 // Iterate over the fill region in axis-aligned, tile-sized chunks.
2181 // (The first and last chunks along each axis might be smaller than a tile.)
2182 Coord xyz, tileMin, tileMax;
2183 for (int x = bbox.min().x(); x <= bbox.max().x(); x = tileMax.x() + 1) {
2184 xyz.setX(x);
2185 for (int y = bbox.min().y(); y <= bbox.max().y(); y = tileMax.y() + 1) {
2186 xyz.setY(y);
2187 for (int z = bbox.min().z(); z <= bbox.max().z(); z = tileMax.z() + 1) {
2188 xyz.setZ(z);
2189
2190 // Get the bounds of the tile that contains voxel (x, y, z).
2191 tileMin = coordToKey(xyz);
2192 tileMax = tileMin.offsetBy(ChildT::DIM - 1);
2193
2194 // Retrieve the table entry for the tile that contains xyz,
2195 // or, if there is no table entry, add a background tile.
2196 const auto iter = findOrAddCoord(tileMin);
2197
2198 if (isTile(iter)) {
2199 // If the table entry is a tile, replace it with a child node
2200 // that is filled with the tile's value and active state.
2201 const auto& tile = getTile(iter);
2202 auto* child = new ChildT{tileMin, tile.value, tile.active};
2203 setChild(iter, *child);
2204 }
2205 // Forward the fill request to the child.
2206 getChild(iter).denseFill(bbox, value, active);
2207 }
2208 }
2209 }
2210}
2211
2212
2213////////////////////////////////////////
2214
2215
2216template<typename ChildT>
2217inline void
2218RootNode<ChildT>::voxelizeActiveTiles(bool threaded)
2219{
2220 // There is little point in threading over the root table since each tile
2221 // spans a huge index space (by default 4096^3) and hence we expect few
2222 // active tiles if any at all. In fact, you're very likely to run out of
2223 // memory if this method is called on a tree with root-level active tiles!
2224 for (MapIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
2225 if (this->isTileOff(i)) continue;
2226 ChildT* child = i->second.child;
2227 if (child == nullptr) {
2228 // If this table entry is an active tile (i.e., not off and not a child node),
2229 // replace it with a child node filled with active tiles of the same value.
2230 child = new ChildT{i->first, this->getTile(i).value, true};
2231 i->second.child = child;
2232 }
2233 child->voxelizeActiveTiles(threaded);
2234 }
2235}
2236
2237
2238////////////////////////////////////////
2239
2240
2241template<typename ChildT>
2242template<typename DenseT>
2243inline void
2244RootNode<ChildT>::copyToDense(const CoordBBox& bbox, DenseT& dense) const
2245{
2246 using DenseValueType = typename DenseT::ValueType;
2247
2248 const size_t xStride = dense.xStride(), yStride = dense.yStride(), zStride = dense.zStride();
2249 const Coord& min = dense.bbox().min();
2250 CoordBBox nodeBBox;
2251 for (Coord xyz = bbox.min(); xyz[0] <= bbox.max()[0]; xyz[0] = nodeBBox.max()[0] + 1) {
2252 for (xyz[1] = bbox.min()[1]; xyz[1] <= bbox.max()[1]; xyz[1] = nodeBBox.max()[1] + 1) {
2253 for (xyz[2] = bbox.min()[2]; xyz[2] <= bbox.max()[2]; xyz[2] = nodeBBox.max()[2] + 1) {
2254
2255 // Get the coordinate bbox of the child node that contains voxel xyz.
2256 nodeBBox = CoordBBox::createCube(coordToKey(xyz), ChildT::DIM);
2257
2258 // Get the coordinate bbox of the interection of inBBox and nodeBBox
2259 CoordBBox sub(xyz, Coord::minComponent(bbox.max(), nodeBBox.max()));
2260
2261 MapCIter iter = this->findKey(nodeBBox.min());
2262 if (iter != mTable.end() && isChild(iter)) {//is a child
2263 getChild(iter).copyToDense(sub, dense);
2264 } else {//is background or a tile value
2265 const ValueType value = iter==mTable.end() ? mBackground : getTile(iter).value;
2266 sub.translate(-min);
2267 DenseValueType* a0 = dense.data() + zStride*sub.min()[2];
2268 for (Int32 x=sub.min()[0], ex=sub.max()[0]+1; x<ex; ++x) {
2269 DenseValueType* a1 = a0 + x*xStride;
2270 for (Int32 y=sub.min()[1], ey=sub.max()[1]+1; y<ey; ++y) {
2271 DenseValueType* a2 = a1 + y*yStride;
2272 for (Int32 z=sub.min()[2], ez=sub.max()[2]+1; z<ez; ++z, a2 += zStride) {
2273 *a2 = DenseValueType(value);
2274 }
2275 }
2276 }
2277 }
2278 }
2279 }
2280 }
2281}
2282
2283////////////////////////////////////////
2284
2285
2286template<typename ChildT>
2287inline bool
2288RootNode<ChildT>::writeTopology(std::ostream& os, bool toHalf) const
2289{
2290 if (!toHalf) {
2291 os.write(reinterpret_cast<const char*>(&mBackground), sizeof(ValueType));
2292 } else {
2293 ValueType truncatedVal = io::truncateRealToHalf(mBackground);
2294 os.write(reinterpret_cast<const char*>(&truncatedVal), sizeof(ValueType));
2295 }
2296 io::setGridBackgroundValuePtr(os, &mBackground);
2297
2298 const Index numTiles = this->getTileCount(), numChildren = this->childCount();
2299 os.write(reinterpret_cast<const char*>(&numTiles), sizeof(Index));
2300 os.write(reinterpret_cast<const char*>(&numChildren), sizeof(Index));
2301
2302 if (numTiles == 0 && numChildren == 0) return false;
2303
2304 // Write tiles.
2305 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
2306 if (isChild(i)) continue;
2307 os.write(reinterpret_cast<const char*>(i->first.asPointer()), 3 * sizeof(Int32));
2308 os.write(reinterpret_cast<const char*>(&getTile(i).value), sizeof(ValueType));
2309 os.write(reinterpret_cast<const char*>(&getTile(i).active), sizeof(bool));
2310 }
2311 // Write child nodes.
2312 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
2313 if (isTile(i)) continue;
2314 os.write(reinterpret_cast<const char*>(i->first.asPointer()), 3 * sizeof(Int32));
2315 getChild(i).writeTopology(os, toHalf);
2316 }
2317
2318 return true; // not empty
2319}
2320
2321
2322template<typename ChildT>
2323inline bool
2324RootNode<ChildT>::readTopology(std::istream& is, bool fromHalf)
2325{
2326 // Delete the existing tree.
2327 this->clear();
2328
2329 if (io::getFormatVersion(is) < OPENVDB_FILE_VERSION_ROOTNODE_MAP) {
2330 // Read and convert an older-format RootNode.
2331
2332 // For backward compatibility with older file formats, read both
2333 // outside and inside background values.
2334 is.read(reinterpret_cast<char*>(&mBackground), sizeof(ValueType));
2335 ValueType inside;
2336 is.read(reinterpret_cast<char*>(&inside), sizeof(ValueType));
2337
2338 io::setGridBackgroundValuePtr(is, &mBackground);
2339
2340 // Read the index range.
2341 Coord rangeMin, rangeMax;
2342 is.read(reinterpret_cast<char*>(rangeMin.asPointer()), 3 * sizeof(Int32));
2343 is.read(reinterpret_cast<char*>(rangeMax.asPointer()), 3 * sizeof(Int32));
2344
2345 this->initTable();
2346 Index tableSize = 0, log2Dim[4] = { 0, 0, 0, 0 };
2347 Int32 offset[3];
2348 for (int i = 0; i < 3; ++i) {
2349 offset[i] = rangeMin[i] >> ChildT::TOTAL;
2350 rangeMin[i] = offset[i] << ChildT::TOTAL;
2351 log2Dim[i] = 1 + util::FindHighestOn((rangeMax[i] >> ChildT::TOTAL) - offset[i]);
2352 tableSize += log2Dim[i];
2353 rangeMax[i] = (((1 << log2Dim[i]) + offset[i]) << ChildT::TOTAL) - 1;
2354 }
2355 log2Dim[3] = log2Dim[1] + log2Dim[2];
2356 tableSize = 1U << tableSize;
2357
2358 // Read masks.
2359 util::RootNodeMask childMask(tableSize), valueMask(tableSize);
2360 childMask.load(is);
2361 valueMask.load(is);
2362
2363 // Read child nodes/values.
2364 for (Index i = 0; i < tableSize; ++i) {
2365 // Compute origin = offset2coord(i).
2366 Index n = i;
2367 Coord origin;
2368 origin[0] = (n >> log2Dim[3]) + offset[0];
2369 n &= (1U << log2Dim[3]) - 1;
2370 origin[1] = (n >> log2Dim[2]) + offset[1];
2371 origin[2] = (n & ((1U << log2Dim[2]) - 1)) + offset[1];
2372 origin <<= ChildT::TOTAL;
2373
2374 if (childMask.isOn(i)) {
2375 // Read in and insert a child node.
2376 ChildT* child = new ChildT(PartialCreate(), origin, mBackground);
2377 child->readTopology(is);
2378 mTable[origin] = NodeStruct(*child);
2379 } else {
2380 // Read in a tile value and insert a tile, but only if the value
2381 // is either active or non-background.
2382 ValueType value;
2383 is.read(reinterpret_cast<char*>(&value), sizeof(ValueType));
2384 if (valueMask.isOn(i) || (!math::isApproxEqual(value, mBackground))) {
2385 mTable[origin] = NodeStruct(Tile(value, valueMask.isOn(i)));
2386 }
2387 }
2388 }
2389 return true;
2390 }
2391
2392 // Read a RootNode that was stored in the current format.
2393
2394 is.read(reinterpret_cast<char*>(&mBackground), sizeof(ValueType));
2395 io::setGridBackgroundValuePtr(is, &mBackground);
2396
2397 Index numTiles = 0, numChildren = 0;
2398 is.read(reinterpret_cast<char*>(&numTiles), sizeof(Index));
2399 is.read(reinterpret_cast<char*>(&numChildren), sizeof(Index));
2400
2401 if (numTiles == 0 && numChildren == 0) return false;
2402
2403 Int32 vec[3];
2404 ValueType value;
2405 bool active;
2406
2407 // Read tiles.
2408 for (Index n = 0; n < numTiles; ++n) {
2409 is.read(reinterpret_cast<char*>(vec), 3 * sizeof(Int32));
2410 is.read(reinterpret_cast<char*>(&value), sizeof(ValueType));
2411 is.read(reinterpret_cast<char*>(&active), sizeof(bool));
2412 mTable[Coord(vec)] = NodeStruct(Tile(value, active));
2413 }
2414
2415 // Read child nodes.
2416 for (Index n = 0; n < numChildren; ++n) {
2417 is.read(reinterpret_cast<char*>(vec), 3 * sizeof(Int32));
2418 Coord origin(vec);
2419 ChildT* child = new ChildT(PartialCreate(), origin, mBackground);
2420 child->readTopology(is, fromHalf);
2421 mTable[Coord(vec)] = NodeStruct(*child);
2422 }
2423
2424 return true; // not empty
2425}
2426
2427
2428template<typename ChildT>
2429inline void
2430RootNode<ChildT>::writeBuffers(std::ostream& os, bool toHalf) const
2431{
2432 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
2433 if (isChild(i)) getChild(i).writeBuffers(os, toHalf);
2434 }
2435}
2436
2437
2438template<typename ChildT>
2439inline void
2440RootNode<ChildT>::readBuffers(std::istream& is, bool fromHalf)
2441{
2442 for (MapIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
2443 if (isChild(i)) getChild(i).readBuffers(is, fromHalf);
2444 }
2445}
2446
2447
2448template<typename ChildT>
2449inline void
2450 RootNode<ChildT>::readBuffers(std::istream& is, const CoordBBox& clipBBox, bool fromHalf)
2451{
2452 const Tile bgTile(mBackground, /*active=*/false);
2453
2454 for (MapIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
2455 if (isChild(i)) {
2456 // Stream in and clip the branch rooted at this child.
2457 // (We can't skip over children that lie outside the clipping region,
2458 // because buffers are serialized in depth-first order and need to be
2459 // unserialized in the same order.)
2460 ChildT& child = getChild(i);
2461 child.readBuffers(is, clipBBox, fromHalf);
2462 }
2463 }
2464 // Clip root-level tiles and prune children that were clipped.
2465 this->clip(clipBBox);
2466}
2467
2468
2469////////////////////////////////////////
2470
2471
2472template<typename ChildT>
2473inline void
2474RootNode<ChildT>::clip(const CoordBBox& clipBBox)
2475{
2476 const Tile bgTile(mBackground, /*active=*/false);
2477
2478 // Iterate over a copy of this node's table so that we can modify the original.
2479 // (Copying the table copies child node pointers, not the nodes themselves.)
2480 MapType copyOfTable(mTable);
2481 for (MapIter i = copyOfTable.begin(), e = copyOfTable.end(); i != e; ++i) {
2482 const Coord& xyz = i->first; // tile or child origin
2483 CoordBBox tileBBox(xyz, xyz.offsetBy(ChildT::DIM - 1)); // tile or child bounds
2484 if (!clipBBox.hasOverlap(tileBBox)) {
2485 // This table entry lies completely outside the clipping region. Delete it.
2486 setTile(this->findCoord(xyz), bgTile); // delete any existing child node first
2487 mTable.erase(xyz);
2488 } else if (!clipBBox.isInside(tileBBox)) {
2489 // This table entry does not lie completely inside the clipping region
2490 // and must be clipped.
2491 if (isChild(i)) {
2492 getChild(i).clip(clipBBox, mBackground);
2493 } else {
2494 // Replace this tile with a background tile, then fill the clip region
2495 // with the tile's original value. (This might create a child branch.)
2496 tileBBox.intersect(clipBBox);
2497 const Tile& origTile = getTile(i);
2498 setTile(this->findCoord(xyz), bgTile);
2499 this->sparseFill(tileBBox, origTile.value, origTile.active);
2500 }
2501 } else {
2502 // This table entry lies completely inside the clipping region. Leave it intact.
2503 }
2504 }
2505 this->prune(); // also erases root-level background tiles
2506}
2507
2508
2509////////////////////////////////////////
2510
2511
2512template<typename ChildT>
2513inline void
2514RootNode<ChildT>::prune(const ValueType& tolerance)
2515{
2516 bool state = false;
2517 ValueType value = zeroVal<ValueType>();
2518 for (MapIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
2519 if (this->isTile(i)) continue;
2520 this->getChild(i).prune(tolerance);
2521 if (this->getChild(i).isConstant(value, state, tolerance)) {
2522 this->setTile(i, Tile(value, state));
2523 }
2524 }
2525 this->eraseBackgroundTiles();
2526}
2527
2528
2529////////////////////////////////////////
2530
2531
2532template<typename ChildT>
2533template<typename NodeT>
2534inline NodeT*
2535RootNode<ChildT>::stealNode(const Coord& xyz, const ValueType& value, bool state)
2536{
2537 if ((NodeT::LEVEL == ChildT::LEVEL && !(std::is_same<NodeT, ChildT>::value)) ||
2538 NodeT::LEVEL > ChildT::LEVEL) return nullptr;
2539 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
2540 MapIter iter = this->findCoord(xyz);
2541 if (iter == mTable.end() || isTile(iter)) return nullptr;
2542 return (std::is_same<NodeT, ChildT>::value)
2543 ? reinterpret_cast<NodeT*>(&stealChild(iter, Tile(value, state)))
2544 : getChild(iter).template stealNode<NodeT>(xyz, value, state);
2545 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
2546}
2547
2548
2549////////////////////////////////////////
2550
2551
2552template<typename ChildT>
2553inline void
2554RootNode<ChildT>::addLeaf(LeafNodeType* leaf)
2555{
2556 if (leaf == nullptr) return;
2557 ChildT* child = nullptr;
2558 const Coord& xyz = leaf->origin();
2559 MapIter iter = this->findCoord(xyz);
2560 if (iter == mTable.end()) {
2561 if (ChildT::LEVEL>0) {
2562 child = new ChildT(xyz, mBackground, false);
2563 } else {
2564 child = reinterpret_cast<ChildT*>(leaf);
2565 }
2566 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
2567 } else if (isChild(iter)) {
2568 if (ChildT::LEVEL>0) {
2569 child = &getChild(iter);
2570 } else {
2571 child = reinterpret_cast<ChildT*>(leaf);
2572 setChild(iter, *child);//this also deletes the existing child node
2573 }
2574 } else {//tile
2575 if (ChildT::LEVEL>0) {
2576 child = new ChildT(xyz, getTile(iter).value, isTileOn(iter));
2577 } else {
2578 child = reinterpret_cast<ChildT*>(leaf);
2579 }
2580 setChild(iter, *child);
2581 }
2582 child->addLeaf(leaf);
2583}
2584
2585
2586template<typename ChildT>
2587template<typename AccessorT>
2588inline void
2589RootNode<ChildT>::addLeafAndCache(LeafNodeType* leaf, AccessorT& acc)
2590{
2591 if (leaf == nullptr) return;
2592 ChildT* child = nullptr;
2593 const Coord& xyz = leaf->origin();
2594 MapIter iter = this->findCoord(xyz);
2595 if (iter == mTable.end()) {
2596 if (ChildT::LEVEL>0) {
2597 child = new ChildT(xyz, mBackground, false);
2598 } else {
2599 child = reinterpret_cast<ChildT*>(leaf);
2600 }
2601 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
2602 } else if (isChild(iter)) {
2603 if (ChildT::LEVEL>0) {
2604 child = &getChild(iter);
2605 } else {
2606 child = reinterpret_cast<ChildT*>(leaf);
2607 setChild(iter, *child);//this also deletes the existing child node
2608 }
2609 } else {//tile
2610 if (ChildT::LEVEL>0) {
2611 child = new ChildT(xyz, getTile(iter).value, isTileOn(iter));
2612 } else {
2613 child = reinterpret_cast<ChildT*>(leaf);
2614 }
2615 setChild(iter, *child);
2616 }
2617 acc.insert(xyz, child);
2618 child->addLeafAndCache(leaf, acc);
2619}
2620
2621template<typename ChildT>
2622inline bool
2623RootNode<ChildT>::addChild(ChildT* child)
2624{
2625 if (!child) return false;
2626 const Coord& xyz = child->origin();
2627 MapIter iter = this->findCoord(xyz);
2628 if (iter == mTable.end()) {//background
2629 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
2630 } else {//child or tile
2631 setChild(iter, *child);//this also deletes the existing child node
2632 }
2633 return true;
2634}
2635
2636template<typename ChildT>
2637inline void
2638RootNode<ChildT>::addTile(const Coord& xyz, const ValueType& value, bool state)
2639{
2640 MapIter iter = this->findCoord(xyz);
2641 if (iter == mTable.end()) {//background
2642 mTable[this->coordToKey(xyz)] = NodeStruct(Tile(value, state));
2643 } else {//child or tile
2644 setTile(iter, Tile(value, state));//this also deletes the existing child node
2645 }
2646}
2647
2648template<typename ChildT>
2649inline void
2650 RootNode<ChildT>::addTile(Index level, const Coord& xyz,
2651 const ValueType& value, bool state)
2652{
2653 if (LEVEL >= level) {
2654 MapIter iter = this->findCoord(xyz);
2655 if (iter == mTable.end()) {//background
2656 if (LEVEL > level) {
2657 ChildT* child = new ChildT(xyz, mBackground, false);
2658 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
2659 child->addTile(level, xyz, value, state);
2660 } else {
2661 mTable[this->coordToKey(xyz)] = NodeStruct(Tile(value, state));
2662 }
2663 } else if (isChild(iter)) {//child
2664 if (LEVEL > level) {
2665 getChild(iter).addTile(level, xyz, value, state);
2666 } else {
2667 setTile(iter, Tile(value, state));//this also deletes the existing child node
2668 }
2669 } else {//tile
2670 if (LEVEL > level) {
2671 ChildT* child = new ChildT(xyz, getTile(iter).value, isTileOn(iter));
2672 setChild(iter, *child);
2673 child->addTile(level, xyz, value, state);
2674 } else {
2675 setTile(iter, Tile(value, state));
2676 }
2677 }
2678 }
2679}
2680
2681
2682template<typename ChildT>
2683template<typename AccessorT>
2684inline void
2685RootNode<ChildT>::addTileAndCache(Index level, const Coord& xyz, const ValueType& value,
2686 bool state, AccessorT& acc)
2687{
2688 if (LEVEL >= level) {
2689 MapIter iter = this->findCoord(xyz);
2690 if (iter == mTable.end()) {//background
2691 if (LEVEL > level) {
2692 ChildT* child = new ChildT(xyz, mBackground, false);
2693 acc.insert(xyz, child);
2694 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
2695 child->addTileAndCache(level, xyz, value, state, acc);
2696 } else {
2697 mTable[this->coordToKey(xyz)] = NodeStruct(Tile(value, state));
2698 }
2699 } else if (isChild(iter)) {//child
2700 if (LEVEL > level) {
2701 ChildT* child = &getChild(iter);
2702 acc.insert(xyz, child);
2703 child->addTileAndCache(level, xyz, value, state, acc);
2704 } else {
2705 setTile(iter, Tile(value, state));//this also deletes the existing child node
2706 }
2707 } else {//tile
2708 if (LEVEL > level) {
2709 ChildT* child = new ChildT(xyz, getTile(iter).value, isTileOn(iter));
2710 acc.insert(xyz, child);
2711 setChild(iter, *child);
2712 child->addTileAndCache(level, xyz, value, state, acc);
2713 } else {
2714 setTile(iter, Tile(value, state));
2715 }
2716 }
2717 }
2718}
2719
2720
2721////////////////////////////////////////
2722
2723
2724template<typename ChildT>
2725inline typename ChildT::LeafNodeType*
2726RootNode<ChildT>::touchLeaf(const Coord& xyz)
2727{
2728 ChildT* child = nullptr;
2729 MapIter iter = this->findCoord(xyz);
2730 if (iter == mTable.end()) {
2731 child = new ChildT(xyz, mBackground, false);
2732 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
2733 } else if (isChild(iter)) {
2734 child = &getChild(iter);
2735 } else {
2736 child = new ChildT(xyz, getTile(iter).value, isTileOn(iter));
2737 setChild(iter, *child);
2738 }
2739 return child->touchLeaf(xyz);
2740}
2741
2742
2743template<typename ChildT>
2744template<typename AccessorT>
2745inline typename ChildT::LeafNodeType*
2746 RootNode<ChildT>::touchLeafAndCache(const Coord& xyz, AccessorT& acc)
2747{
2748 ChildT* child = nullptr;
2749 MapIter iter = this->findCoord(xyz);
2750 if (iter == mTable.end()) {
2751 child = new ChildT(xyz, mBackground, false);
2752 mTable[this->coordToKey(xyz)] = NodeStruct(*child);
2753 } else if (isChild(iter)) {
2754 child = &getChild(iter);
2755 } else {
2756 child = new ChildT(xyz, getTile(iter).value, isTileOn(iter));
2757 setChild(iter, *child);
2758 }
2759 acc.insert(xyz, child);
2760 return child->touchLeafAndCache(xyz, acc);
2761}
2762
2763
2764////////////////////////////////////////
2765
2766
2767template<typename ChildT>
2768template<typename NodeT>
2769inline NodeT*
2770RootNode<ChildT>::probeNode(const Coord& xyz)
2771{
2772 if ((NodeT::LEVEL == ChildT::LEVEL && !(std::is_same<NodeT, ChildT>::value)) ||
2773 NodeT::LEVEL > ChildT::LEVEL) return nullptr;
2774 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
2775 MapIter iter = this->findCoord(xyz);
2776 if (iter == mTable.end() || isTile(iter)) return nullptr;
2777 ChildT* child = &getChild(iter);
2778 return (std::is_same<NodeT, ChildT>::value)
2779 ? reinterpret_cast<NodeT*>(child)
2780 : child->template probeNode<NodeT>(xyz);
2781 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
2782}
2783
2784
2785template<typename ChildT>
2786template<typename NodeT>
2787inline const NodeT*
2788RootNode<ChildT>::probeConstNode(const Coord& xyz) const
2789{
2790 if ((NodeT::LEVEL == ChildT::LEVEL && !(std::is_same<NodeT, ChildT>::value)) ||
2791 NodeT::LEVEL > ChildT::LEVEL) return nullptr;
2792 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
2793 MapCIter iter = this->findCoord(xyz);
2794 if (iter == mTable.end() || isTile(iter)) return nullptr;
2795 const ChildT* child = &getChild(iter);
2796 return (std::is_same<NodeT, ChildT>::value)
2797 ? reinterpret_cast<const NodeT*>(child)
2798 : child->template probeConstNode<NodeT>(xyz);
2799 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
2800}
2801
2802
2803template<typename ChildT>
2804inline typename ChildT::LeafNodeType*
2805RootNode<ChildT>::probeLeaf(const Coord& xyz)
2806{
2807 return this->template probeNode<LeafNodeType>(xyz);
2808}
2809
2810
2811template<typename ChildT>
2812inline const typename ChildT::LeafNodeType*
2813RootNode<ChildT>::probeConstLeaf(const Coord& xyz) const
2814{
2815 return this->template probeConstNode<LeafNodeType>(xyz);
2816}
2817
2818
2819template<typename ChildT>
2820template<typename AccessorT>
2821inline typename ChildT::LeafNodeType*
2822 RootNode<ChildT>::probeLeafAndCache(const Coord& xyz, AccessorT& acc)
2823{
2824 return this->template probeNodeAndCache<LeafNodeType>(xyz, acc);
2825}
2826
2827
2828template<typename ChildT>
2829template<typename AccessorT>
2830inline const typename ChildT::LeafNodeType*
2831 RootNode<ChildT>::probeConstLeafAndCache(const Coord& xyz, AccessorT& acc) const
2832{
2833 return this->template probeConstNodeAndCache<LeafNodeType>(xyz, acc);
2834}
2835
2836
2837template<typename ChildT>
2838template<typename AccessorT>
2839inline const typename ChildT::LeafNodeType*
2840 RootNode<ChildT>::probeLeafAndCache(const Coord& xyz, AccessorT& acc) const
2841{
2842 return this->probeConstLeafAndCache(xyz, acc);
2843}
2844
2845
2846template<typename ChildT>
2847template<typename NodeT, typename AccessorT>
2848inline NodeT*
2849RootNode<ChildT>::probeNodeAndCache(const Coord& xyz, AccessorT& acc)
2850{
2851 if ((NodeT::LEVEL == ChildT::LEVEL && !(std::is_same<NodeT, ChildT>::value)) ||
2852 NodeT::LEVEL > ChildT::LEVEL) return nullptr;
2853 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
2854 MapIter iter = this->findCoord(xyz);
2855 if (iter == mTable.end() || isTile(iter)) return nullptr;
2856 ChildT* child = &getChild(iter);
2857 acc.insert(xyz, child);
2858 return (std::is_same<NodeT, ChildT>::value)
2859 ? reinterpret_cast<NodeT*>(child)
2860 : child->template probeNodeAndCache<NodeT>(xyz, acc);
2861 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
2862}
2863
2864
2865template<typename ChildT>
2866template<typename NodeT,typename AccessorT>
2867inline const NodeT*
2868RootNode<ChildT>::probeConstNodeAndCache(const Coord& xyz, AccessorT& acc) const
2869{
2870 if ((NodeT::LEVEL == ChildT::LEVEL && !(std::is_same<NodeT, ChildT>::value)) ||
2871 NodeT::LEVEL > ChildT::LEVEL) return nullptr;
2872 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
2873 MapCIter iter = this->findCoord(xyz);
2874 if (iter == mTable.end() || isTile(iter)) return nullptr;
2875 const ChildT* child = &getChild(iter);
2876 acc.insert(xyz, child);
2877 return (std::is_same<NodeT, ChildT>::value)
2878 ? reinterpret_cast<const NodeT*>(child)
2879 : child->template probeConstNodeAndCache<NodeT>(xyz, acc);
2880 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
2881}
2882
2883
2884////////////////////////////////////////
2885
2886template<typename ChildT>
2887template<typename ArrayT>
2888inline void
2889RootNode<ChildT>::getNodes(ArrayT& array)
2890{
2891 using NodePtr = typename ArrayT::value_type;
2892 static_assert(std::is_pointer<NodePtr>::value,
2893 "argument to getNodes() must be a pointer array");
2894 using NodeType = typename std::remove_pointer<NodePtr>::type;
2895 using NonConstNodeType = typename std::remove_const<NodeType>::type;
2896 static_assert(NodeChainType::template Contains<NonConstNodeType>,
2897 "can't extract non-const nodes from a const tree");
2898 using ArrayChildT = typename std::conditional<
2899 std::is_const<NodeType>::value, const ChildT, ChildT>::type;
2900
2901 for (MapIter iter=mTable.begin(); iter!=mTable.end(); ++iter) {
2902 if (ChildT* child = iter->second.child) {
2903 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
2904 if (std::is_same<NodePtr, ArrayChildT*>::value) {
2905 array.push_back(reinterpret_cast<NodePtr>(iter->second.child));
2906 } else {
2907 child->getNodes(array);//descent
2908 }
2909 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
2910 }
2911 }
2912}
2913
2914template<typename ChildT>
2915template<typename ArrayT>
2916inline void
2917 RootNode<ChildT>::getNodes(ArrayT& array) const
2918{
2919 using NodePtr = typename ArrayT::value_type;
2920 static_assert(std::is_pointer<NodePtr>::value,
2921 "argument to getNodes() must be a pointer array");
2922 using NodeType = typename std::remove_pointer<NodePtr>::type;
2923 static_assert(std::is_const<NodeType>::value,
2924 "argument to getNodes() must be an array of const node pointers");
2925 using NonConstNodeType = typename std::remove_const<NodeType>::type;
2926 static_assert(NodeChainType::template Contains<NonConstNodeType>,
2927 "can't extract non-const nodes from a const tree");
2928
2929 for (MapCIter iter=mTable.begin(); iter!=mTable.end(); ++iter) {
2930 if (const ChildNodeType *child = iter->second.child) {
2931 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
2932 if (std::is_same<NodePtr, const ChildT*>::value) {
2933 array.push_back(reinterpret_cast<NodePtr>(iter->second.child));
2934 } else {
2935 child->getNodes(array);//descent
2936 }
2937 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
2938 }
2939 }
2940}
2941
2942////////////////////////////////////////
2943
2944template<typename ChildT>
2945template<typename ArrayT>
2946inline void
2947RootNode<ChildT>::stealNodes(ArrayT& array, const ValueType& value, bool state)
2948{
2949 using NodePtr = typename ArrayT::value_type;
2950 static_assert(std::is_pointer<NodePtr>::value,
2951 "argument to stealNodes() must be a pointer array");
2952 using NodeType = typename std::remove_pointer<NodePtr>::type;
2953 using NonConstNodeType = typename std::remove_const<NodeType>::type;
2954 static_assert(NodeChainType::template Contains<NonConstNodeType>,
2955 "can't extract non-const nodes from a const tree");
2956 using ArrayChildT = typename std::conditional<
2957 std::is_const<NodeType>::value, const ChildT, ChildT>::type;
2958
2959 for (MapIter iter=mTable.begin(); iter!=mTable.end(); ++iter) {
2960 if (ChildT* child = iter->second.child) {
2961 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
2962 if (std::is_same<NodePtr, ArrayChildT*>::value) {
2963 array.push_back(reinterpret_cast<NodePtr>(&stealChild(iter, Tile(value, state))));
2964 } else {
2965 child->stealNodes(array, value, state);//descent
2966 }
2967 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
2968 }
2969 }
2970}
2971
2972
2973////////////////////////////////////////
2974
2975
2976template<typename ChildT>
2977template<MergePolicy Policy>
2978inline void
2979RootNode<ChildT>::merge(RootNode& other)
2980{
2981 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
2982
2983 switch (Policy) {
2984
2985 default:
2986 case MERGE_ACTIVE_STATES:
2987 for (MapIter i = other.mTable.begin(), e = other.mTable.end(); i != e; ++i) {
2988 MapIter j = mTable.find(i->first);
2989 if (other.isChild(i)) {
2990 if (j == mTable.end()) { // insert other node's child
2991 ChildNodeType& child = stealChild(i, Tile(other.mBackground, /*on=*/false));
2992 child.resetBackground(other.mBackground, mBackground);
2993 mTable[i->first] = NodeStruct(child);
2994 } else if (isTile(j)) {
2995 if (isTileOff(j)) { // replace inactive tile with other node's child
2996 ChildNodeType& child = stealChild(i, Tile(other.mBackground, /*on=*/false));
2997 child.resetBackground(other.mBackground, mBackground);
2998 setChild(j, child);
2999 }
3000 } else { // merge both child nodes
3001 getChild(j).template merge<MERGE_ACTIVE_STATES>(getChild(i),
3002 other.mBackground, mBackground);
3003 }
3004 } else if (other.isTileOn(i)) {
3005 if (j == mTable.end()) { // insert other node's active tile
3006 mTable[i->first] = i->second;
3007 } else if (!isTileOn(j)) {
3008 // Replace anything except an active tile with the other node's active tile.
3009 setTile(j, Tile(other.getTile(i).value, true));
3010 }
3011 }
3012 }
3013 break;
3014
3015 case MERGE_NODES:
3016 for (MapIter i = other.mTable.begin(), e = other.mTable.end(); i != e; ++i) {
3017 MapIter j = mTable.find(i->first);
3018 if (other.isChild(i)) {
3019 if (j == mTable.end()) { // insert other node's child
3020 ChildNodeType& child = stealChild(i, Tile(other.mBackground, /*on=*/false));
3021 child.resetBackground(other.mBackground, mBackground);
3022 mTable[i->first] = NodeStruct(child);
3023 } else if (isTile(j)) { // replace tile with other node's child
3024 ChildNodeType& child = stealChild(i, Tile(other.mBackground, /*on=*/false));
3025 child.resetBackground(other.mBackground, mBackground);
3026 setChild(j, child);
3027 } else { // merge both child nodes
3028 getChild(j).template merge<MERGE_NODES>(
3029 getChild(i), other.mBackground, mBackground);
3030 }
3031 }
3032 }
3033 break;
3034
3035 case MERGE_ACTIVE_STATES_AND_NODES:
3036 for (MapIter i = other.mTable.begin(), e = other.mTable.end(); i != e; ++i) {
3037 MapIter j = mTable.find(i->first);
3038 if (other.isChild(i)) {
3039 if (j == mTable.end()) {
3040 // Steal and insert the other node's child.
3041 ChildNodeType& child = stealChild(i, Tile(other.mBackground, /*on=*/false));
3042 child.resetBackground(other.mBackground, mBackground);
3043 mTable[i->first] = NodeStruct(child);
3044 } else if (isTile(j)) {
3045 // Replace this node's tile with the other node's child.
3046 ChildNodeType& child = stealChild(i, Tile(other.mBackground, /*on=*/false));
3047 child.resetBackground(other.mBackground, mBackground);
3048 const Tile tile = getTile(j);
3049 setChild(j, child);
3050 if (tile.active) {
3051 // Merge the other node's child with this node's active tile.
3052 child.template merge<MERGE_ACTIVE_STATES_AND_NODES>(
3053 tile.value, tile.active);
3054 }
3055 } else /*if (isChild(j))*/ {
3056 // Merge the other node's child into this node's child.
3057 getChild(j).template merge<MERGE_ACTIVE_STATES_AND_NODES>(getChild(i),
3058 other.mBackground, mBackground);
3059 }
3060 } else if (other.isTileOn(i)) {
3061 if (j == mTable.end()) {
3062 // Insert a copy of the other node's active tile.
3063 mTable[i->first] = i->second;
3064 } else if (isTileOff(j)) {
3065 // Replace this node's inactive tile with a copy of the other's active tile.
3066 setTile(j, Tile(other.getTile(i).value, true));
3067 } else if (isChild(j)) {
3068 // Merge the other node's active tile into this node's child.
3069 const Tile& tile = getTile(i);
3070 getChild(j).template merge<MERGE_ACTIVE_STATES_AND_NODES>(
3071 tile.value, tile.active);
3072 }
3073 } // else if (other.isTileOff(i)) {} // ignore the other node's inactive tiles
3074 }
3075 break;
3076 }
3077
3078 // Empty the other tree so as not to leave it in a partially cannibalized state.
3079 other.clear();
3080
3081 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
3082}
3083
3084
3085////////////////////////////////////////
3086
3087
3088template<typename ChildT>
3089template<typename OtherChildType>
3090inline void
3091RootNode<ChildT>::topologyUnion(const RootNode<OtherChildType>& other, const bool preserveTiles)
3092{
3093 using OtherRootT = RootNode<OtherChildType>;
3094 using OtherCIterT = typename OtherRootT::MapCIter;
3095
3096 enforceSameConfiguration(other);
3097
3098 for (OtherCIterT i = other.mTable.begin(), e = other.mTable.end(); i != e; ++i) {
3099 MapIter j = mTable.find(i->first);
3100 if (other.isChild(i)) {
3101 if (j == mTable.end()) { // create child branch with identical topology
3102 mTable[i->first] = NodeStruct(
3103 *(new ChildT(other.getChild(i), mBackground, TopologyCopy())));
3104 } else if (this->isChild(j)) { // union with child branch
3105 this->getChild(j).topologyUnion(other.getChild(i), preserveTiles);
3106 } else {// this is a tile so replace it with a child branch with identical topology
3107 if (!preserveTiles || this->isTileOff(j)) { // force child topology
3108 ChildT* child = new ChildT(
3109 other.getChild(i), this->getTile(j).value, TopologyCopy());
3110 if (this->isTileOn(j)) child->setValuesOn();//this is an active tile
3111 this->setChild(j, *child);
3112 }
3113 }
3114 } else if (other.isTileOn(i)) { // other is an active tile
3115 if (j == mTable.end()) { // insert an active tile
3116 mTable[i->first] = NodeStruct(Tile(mBackground, true));
3117 } else if (this->isChild(j)) {
3118 this->getChild(j).setValuesOn();
3119 } else if (this->isTileOff(j)) {
3120 this->setTile(j, Tile(this->getTile(j).value, true));
3121 }
3122 }
3123 }
3124}
3125
3126template<typename ChildT>
3127template<typename OtherChildType>
3128inline void
3129RootNode<ChildT>::topologyIntersection(const RootNode<OtherChildType>& other)
3130{
3131 using OtherRootT = RootNode<OtherChildType>;
3132 using OtherCIterT = typename OtherRootT::MapCIter;
3133
3134 enforceSameConfiguration(other);
3135
3136 std::set<Coord> tmp;//keys to erase
3137 for (MapIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
3138 OtherCIterT j = other.mTable.find(i->first);
3139 if (this->isChild(i)) {
3140 if (j == other.mTable.end() || other.isTileOff(j)) {
3141 tmp.insert(i->first);//delete child branch
3142 } else if (other.isChild(j)) { // intersect with child branch
3143 this->getChild(i).topologyIntersection(other.getChild(j), mBackground);
3144 }
3145 } else if (this->isTileOn(i)) {
3146 if (j == other.mTable.end() || other.isTileOff(j)) {
3147 this->setTile(i, Tile(this->getTile(i).value, false));//turn inactive
3148 } else if (other.isChild(j)) { //replace with a child branch with identical topology
3149 ChildT* child =
3150 new ChildT(other.getChild(j), this->getTile(i).value, TopologyCopy());
3151 this->setChild(i, *child);
3152 }
3153 }
3154 }
3155 for (std::set<Coord>::iterator i = tmp.begin(), e = tmp.end(); i != e; ++i) {
3156 MapIter it = this->findCoord(*i);
3157 setTile(it, Tile()); // delete any existing child node first
3158 mTable.erase(it);
3159 }
3160}
3161
3162template<typename ChildT>
3163template<typename OtherChildType>
3164inline void
3165RootNode<ChildT>::topologyDifference(const RootNode<OtherChildType>& other)
3166{
3167 using OtherRootT = RootNode<OtherChildType>;
3168 using OtherCIterT = typename OtherRootT::MapCIter;
3169
3170 enforceSameConfiguration(other);
3171
3172 for (OtherCIterT i = other.mTable.begin(), e = other.mTable.end(); i != e; ++i) {
3173 MapIter j = mTable.find(i->first);
3174 if (other.isChild(i)) {
3175 if (j == mTable.end() || this->isTileOff(j)) {
3176 //do nothing
3177 } else if (this->isChild(j)) { // difference with child branch
3178 this->getChild(j).topologyDifference(other.getChild(i), mBackground);
3179 } else if (this->isTileOn(j)) {
3180 // this is an active tile so create a child node and descent
3181 ChildT* child = new ChildT(j->first, this->getTile(j).value, true);
3182 child->topologyDifference(other.getChild(i), mBackground);
3183 this->setChild(j, *child);
3184 }
3185 } else if (other.isTileOn(i)) { // other is an active tile
3186 if (j == mTable.end() || this->isTileOff(j)) {
3187 // do nothing
3188 } else if (this->isChild(j)) {
3189 setTile(j, Tile()); // delete any existing child node first
3190 mTable.erase(j);
3191 } else if (this->isTileOn(j)) {
3192 this->setTile(j, Tile(this->getTile(j).value, false));
3193 }
3194 }
3195 }
3196}
3197
3198////////////////////////////////////////
3199
3200
3201template<typename ChildT>
3202template<typename CombineOp>
3203inline void
3204RootNode<ChildT>::combine(RootNode& other, CombineOp& op, bool prune)
3205{
3206 CombineArgs<ValueType> args;
3207
3208 CoordSet keys;
3209 this->insertKeys(keys);
3210 other.insertKeys(keys);
3211
3212 for (CoordSetCIter i = keys.begin(), e = keys.end(); i != e; ++i) {
3213 MapIter iter = findOrAddCoord(*i), otherIter = other.findOrAddCoord(*i);
3214 if (isTile(iter) && isTile(otherIter)) {
3215 // Both this node and the other node have constant values (tiles).
3216 // Combine the two values and store the result as this node's new tile value.
3217 op(args.setARef(getTile(iter).value)
3218 .setAIsActive(isTileOn(iter))
3219 .setBRef(getTile(otherIter).value)
3220 .setBIsActive(isTileOn(otherIter)));
3221 setTile(iter, Tile(args.result(), args.resultIsActive()));
3222
3223 } else if (isChild(iter) && isTile(otherIter)) {
3224 // Combine this node's child with the other node's constant value.
3225 ChildT& child = getChild(iter);
3226 child.combine(getTile(otherIter).value, isTileOn(otherIter), op);
3227
3228 } else if (isTile(iter) && isChild(otherIter)) {
3229 // Combine this node's constant value with the other node's child,
3230 // but use a new functor in which the A and B values are swapped,
3231 // since the constant value is the A value, not the B value.
3232 SwappedCombineOp<ValueType, CombineOp> swappedOp(op);
3233 ChildT& child = getChild(otherIter);
3234 child.combine(getTile(iter).value, isTileOn(iter), swappedOp);
3235
3236 // Steal the other node's child.
3237 setChild(iter, stealChild(otherIter, Tile()));
3238
3239 } else /*if (isChild(iter) && isChild(otherIter))*/ {
3240 // Combine this node's child with the other node's child.
3241 ChildT &child = getChild(iter), &otherChild = getChild(otherIter);
3242 child.combine(otherChild, op);
3243 }
3244 if (prune && isChild(iter)) getChild(iter).prune();
3245 }
3246
3247 // Combine background values.
3248 op(args.setARef(mBackground).setBRef(other.mBackground));
3249 mBackground = args.result();
3250
3251 // Empty the other tree so as not to leave it in a partially cannibalized state.
3252 other.clear();
3253}
3254
3255
3256////////////////////////////////////////
3257
3258
3259// This helper class is a friend of RootNode and is needed so that combine2
3260// can be specialized for compatible and incompatible pairs of RootNode types.
3261template<typename CombineOp, typename RootT, typename OtherRootT, bool Compatible = false>
3262 struct RootNodeCombineHelper
3263{
3264 static inline void combine2(RootT& self, const RootT&, const OtherRootT& other1,
3265 CombineOp&, bool)
3266 {
3267 // If the two root nodes have different configurations or incompatible ValueTypes,
3268 // throw an exception.
3269 self.enforceSameConfiguration(other1);
3270 self.enforceCompatibleValueTypes(other1);
3271 // One of the above two tests should throw, so we should never get here:
3272 std::ostringstream ostr;
3273 ostr << "cannot combine a " << typeid(OtherRootT).name()
3274 << " into a " << typeid(RootT).name();
3275 OPENVDB_THROW(TypeError, ostr.str());
3276 }
3277};
3278
3279// Specialization for root nodes of compatible types
3280template<typename CombineOp, typename RootT, typename OtherRootT>
3281 struct RootNodeCombineHelper<CombineOp, RootT, OtherRootT, /*Compatible=*/true>
3282{
3283 static inline void combine2(RootT& self, const RootT& other0, const OtherRootT& other1,
3284 CombineOp& op, bool prune)
3285 {
3286 self.doCombine2(other0, other1, op, prune);
3287 }
3288};
3289
3290
3291template<typename ChildT>
3292template<typename CombineOp, typename OtherRootNode>
3293inline void
3294RootNode<ChildT>::combine2(const RootNode& other0, const OtherRootNode& other1,
3295 CombineOp& op, bool prune)
3296{
3297 using OtherValueType = typename OtherRootNode::ValueType;
3298 static const bool compatible = (SameConfiguration<OtherRootNode>::value
3299 && CanConvertType</*from=*/OtherValueType, /*to=*/ValueType>::value);
3300 RootNodeCombineHelper<CombineOp, RootNode, OtherRootNode, compatible>::combine2(
3301 *this, other0, other1, op, prune);
3302}
3303
3304
3305template<typename ChildT>
3306template<typename CombineOp, typename OtherRootNode>
3307inline void
3308 RootNode<ChildT>::doCombine2(const RootNode& other0, const OtherRootNode& other1,
3309 CombineOp& op, bool prune)
3310{
3311 enforceSameConfiguration(other1);
3312
3313 using OtherValueT = typename OtherRootNode::ValueType;
3314 using OtherTileT = typename OtherRootNode::Tile;
3315 using OtherNodeStructT = typename OtherRootNode::NodeStruct;
3316 using OtherMapCIterT = typename OtherRootNode::MapCIter;
3317
3318 CombineArgs<ValueType, OtherValueT> args;
3319
3320 CoordSet keys;
3321 other0.insertKeys(keys);
3322 other1.insertKeys(keys);
3323
3324 const NodeStruct bg0(Tile(other0.mBackground, /*active=*/false));
3325 const OtherNodeStructT bg1(OtherTileT(other1.mBackground, /*active=*/false));
3326
3327 for (CoordSetCIter i = keys.begin(), e = keys.end(); i != e; ++i) {
3328 MapIter thisIter = this->findOrAddCoord(*i);
3329 MapCIter iter0 = other0.findKey(*i);
3330 OtherMapCIterT iter1 = other1.findKey(*i);
3331 const NodeStruct& ns0 = (iter0 != other0.mTable.end()) ? iter0->second : bg0;
3332 const OtherNodeStructT& ns1 = (iter1 != other1.mTable.end()) ? iter1->second : bg1;
3333 if (ns0.isTile() && ns1.isTile()) {
3334 // Both input nodes have constant values (tiles).
3335 // Combine the two values and add a new tile to this node with the result.
3336 op(args.setARef(ns0.tile.value)
3337 .setAIsActive(ns0.isTileOn())
3338 .setBRef(ns1.tile.value)
3339 .setBIsActive(ns1.isTileOn()));
3340 setTile(thisIter, Tile(args.result(), args.resultIsActive()));
3341 } else {
3342 if (!isChild(thisIter)) {
3343 // Add a new child with the same coordinates, etc. as the other node's child.
3344 const Coord& childOrigin =
3345 ns0.isChild() ? ns0.child->origin() : ns1.child->origin();
3346 setChild(thisIter, *(new ChildT(childOrigin, getTile(thisIter).value)));
3347 }
3348 ChildT& child = getChild(thisIter);
3349
3350 if (ns0.isTile()) {
3351 // Combine node1's child with node0's constant value
3352 // and write the result into this node's child.
3353 child.combine2(ns0.tile.value, *ns1.child, ns0.isTileOn(), op);
3354 } else if (ns1.isTile()) {
3355 // Combine node0's child with node1's constant value
3356 // and write the result into this node's child.
3357 child.combine2(*ns0.child, ns1.tile.value, ns1.isTileOn(), op);
3358 } else {
3359 // Combine node0's child with node1's child
3360 // and write the result into this node's child.
3361 child.combine2(*ns0.child, *ns1.child, op);
3362 }
3363 }
3364 if (prune && isChild(thisIter)) getChild(thisIter).prune();
3365 }
3366
3367 // Combine background values.
3368 op(args.setARef(other0.mBackground).setBRef(other1.mBackground));
3369 mBackground = args.result();
3370}
3371
3372
3373////////////////////////////////////////
3374
3375
3376template<typename ChildT>
3377template<typename BBoxOp>
3378inline void
3379RootNode<ChildT>::visitActiveBBox(BBoxOp& op) const
3380{
3381 const bool descent = op.template descent<LEVEL>();
3382 for (MapCIter i = mTable.begin(), e = mTable.end(); i != e; ++i) {
3383 if (this->isTileOff(i)) continue;
3384 if (this->isChild(i) && descent) {
3385 this->getChild(i).visitActiveBBox(op);
3386 } else {
3387 op.template operator()<LEVEL>(CoordBBox::createCube(i->first, ChildT::DIM));
3388 }
3389 }
3390}
3391
3392
3393template<typename ChildT>
3394template<typename VisitorOp>
3395inline void
3396RootNode<ChildT>::visit(VisitorOp& op)
3397{
3398 doVisit<RootNode, VisitorOp, ChildAllIter>(*this, op);
3399}
3400
3401
3402template<typename ChildT>
3403template<typename VisitorOp>
3404inline void
3405 RootNode<ChildT>::visit(VisitorOp& op) const
3406{
3407 doVisit<const RootNode, VisitorOp, ChildAllCIter>(*this, op);
3408}
3409
3410
3411template<typename ChildT>
3412template<typename RootNodeT, typename VisitorOp, typename ChildAllIterT>
3413inline void
3414 RootNode<ChildT>::doVisit(RootNodeT& self, VisitorOp& op)
3415{
3416 typename RootNodeT::ValueType val;
3417 for (ChildAllIterT iter = self.beginChildAll(); iter; ++iter) {
3418 if (op(iter)) continue;
3419 if (typename ChildAllIterT::ChildNodeType* child = iter.probeChild(val)) {
3420 child->visit(op);
3421 }
3422 }
3423}
3424
3425
3426////////////////////////////////////////
3427
3428
3429template<typename ChildT>
3430template<typename OtherRootNodeType, typename VisitorOp>
3431inline void
3432RootNode<ChildT>::visit2(OtherRootNodeType& other, VisitorOp& op)
3433{
3434 doVisit2<RootNode, OtherRootNodeType, VisitorOp, ChildAllIter,
3435 typename OtherRootNodeType::ChildAllIter>(*this, other, op);
3436}
3437
3438
3439template<typename ChildT>
3440template<typename OtherRootNodeType, typename VisitorOp>
3441inline void
3442 RootNode<ChildT>::visit2(OtherRootNodeType& other, VisitorOp& op) const
3443{
3444 doVisit2<const RootNode, OtherRootNodeType, VisitorOp, ChildAllCIter,
3445 typename OtherRootNodeType::ChildAllCIter>(*this, other, op);
3446}
3447
3448
3449template<typename ChildT>
3450template<
3451 typename RootNodeT,
3452 typename OtherRootNodeT,
3453 typename VisitorOp,
3454 typename ChildAllIterT,
3455 typename OtherChildAllIterT>
3456inline void
3457 RootNode<ChildT>::doVisit2(RootNodeT& self, OtherRootNodeT& other, VisitorOp& op)
3458{
3459 enforceSameConfiguration(other);
3460
3461 typename RootNodeT::ValueType val;
3462 typename OtherRootNodeT::ValueType otherVal;
3463
3464 // The two nodes are required to have corresponding table entries,
3465 // but since that might require background tiles to be added to one or both,
3466 // and the nodes might be const, we operate on shallow copies of the nodes instead.
3467 RootNodeT copyOfSelf(self.mBackground);
3468 copyOfSelf.mTable = self.mTable;
3469 OtherRootNodeT copyOfOther(other.mBackground);
3470 copyOfOther.mTable = other.mTable;
3471
3472 // Add background tiles to both nodes as needed.
3473 CoordSet keys;
3474 self.insertKeys(keys);
3475 other.insertKeys(keys);
3476 for (CoordSetCIter i = keys.begin(), e = keys.end(); i != e; ++i) {
3477 copyOfSelf.findOrAddCoord(*i);
3478 copyOfOther.findOrAddCoord(*i);
3479 }
3480
3481 ChildAllIterT iter = copyOfSelf.beginChildAll();
3482 OtherChildAllIterT otherIter = copyOfOther.beginChildAll();
3483
3484 for ( ; iter && otherIter; ++iter, ++otherIter)
3485 {
3486 const size_t skipBranch = static_cast<size_t>(op(iter, otherIter));
3487
3488 typename ChildAllIterT::ChildNodeType* child =
3489 (skipBranch & 1U) ? nullptr : iter.probeChild(val);
3490 typename OtherChildAllIterT::ChildNodeType* otherChild =
3491 (skipBranch & 2U) ? nullptr : otherIter.probeChild(otherVal);
3492
3493 if (child != nullptr && otherChild != nullptr) {
3494 child->visit2Node(*otherChild, op);
3495 } else if (child != nullptr) {
3496 child->visit2(otherIter, op);
3497 } else if (otherChild != nullptr) {
3498 otherChild->visit2(iter, op, /*otherIsLHS=*/true);
3499 }
3500 }
3501 // Remove any background tiles that were added above,
3502 // as well as any that were created by the visitors.
3503 copyOfSelf.eraseBackgroundTiles();
3504 copyOfOther.eraseBackgroundTiles();
3505
3506 // If either input node is non-const, replace its table with
3507 // the (possibly modified) copy.
3508 self.resetTable(copyOfSelf.mTable);
3509 other.resetTable(copyOfOther.mTable);
3510}
3511
3512} // namespace tree
3513} // namespace OPENVDB_VERSION_NAME
3514} // namespace openvdb
3515
3516#endif // OPENVDB_TREE_ROOTNODE_HAS_BEEN_INCLUDED
BBox.h
Compression.h
value
ValueT value
Definition: GridBuilder.h:1287
child
ChildT * child
Definition: GridBuilder.h:1286
Math.h
General-purpose arithmetic and comparison routines, most of which accept arbitrary value types (or at...
NodeMasks.h
OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
#define OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
Definition: Platform.h:116
OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
#define OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
SIMD Intrinsic Headers.
Definition: Platform.h:115
nanovdb::Coord
Signed (i, j, k) 32-bit integer coordinate class, similar to openvdb::math::Coord.
Definition: NanoVDB.h:860
openvdb::v9_0::CombineArgs
This struct collects both input and output arguments to "grid combiner" functors used with the tree::...
Definition: Types.h:451
openvdb::v9_0::CombineArgs::setARef
CombineArgs & setARef(const AValueType &a)
Redirect the A value to a new external source.
Definition: Types.h:503
openvdb::v9_0::CombineArgs::result
const AValueType & result() const
Get the output value.
Definition: Types.h:495
openvdb::v9_0::CombineArgs::setBIsActive
CombineArgs & setBIsActive(bool b)
Set the active state of the B value.
Definition: Types.h:519
openvdb::v9_0::CombineArgs::setBRef
CombineArgs & setBRef(const BValueType &b)
Redirect the B value to a new external source.
Definition: Types.h:505
openvdb::v9_0::CombineArgs::resultIsActive
bool resultIsActive() const
Definition: Types.h:514
openvdb::v9_0::CombineArgs::setAIsActive
CombineArgs & setAIsActive(bool b)
Set the active state of the A value.
Definition: Types.h:517
openvdb::v9_0::PartialCreate
Tag dispatch class that distinguishes constructors during file input.
Definition: Types.h:570
openvdb::v9_0::TopologyCopy
Tag dispatch class that distinguishes topology copy constructors from deep copy constructors.
Definition: Types.h:564
openvdb::v9_0::TypeError
Definition: Exceptions.h:64
openvdb::v9_0::math::CoordBBox
Axis-aligned bounding box of signed integer coordinates.
Definition: Coord.h:248
openvdb::v9_0::math::CoordBBox::translate
void translate(const Coord &t)
Translate this bounding box by (tx, ty, tz).
Definition: Coord.h:457
openvdb::v9_0::math::CoordBBox::expand
void expand(ValueType padding)
Pad this bounding box with the specified padding.
Definition: Coord.h:417
openvdb::v9_0::math::CoordBBox::empty
bool empty() const
Return true if this bounding box is empty (i.e., encloses no coordinates).
Definition: Coord.h:355
openvdb::v9_0::math::CoordBBox::min
const Coord & min() const
Definition: Coord.h:320
openvdb::v9_0::math::CoordBBox::hasOverlap
bool hasOverlap(const CoordBBox &b) const
Return true if the given bounding box overlaps with this bounding box.
Definition: Coord.h:411
openvdb::v9_0::math::CoordBBox::max
const Coord & max() const
Definition: Coord.h:321
openvdb::v9_0::math::CoordBBox::inf
static CoordBBox inf()
Return an "infinite" bounding box, as defined by the Coord value range.
Definition: Coord.h:318
openvdb::v9_0::math::CoordBBox::isInside
bool isInside(const Coord &xyz) const
Return true if point (x, y, z) is inside this bounding box.
Definition: Coord.h:399
openvdb::v9_0::math::CoordBBox::intersect
void intersect(const CoordBBox &bbox)
Intersect this bounding box with the given bounding box.
Definition: Coord.h:443
openvdb::v9_0::math::CoordBBox::createCube
static CoordBBox createCube(const Coord &min, ValueType dim)
Definition: Coord.h:312
openvdb::v9_0::math::Coord
Signed (x, y, z) 32-bit integer coordinates.
Definition: Coord.h:25
openvdb::v9_0::math::Coord::y
Int32 y() const
Definition: Coord.h:131
openvdb::v9_0::math::Coord::offsetBy
Coord offsetBy(Int32 dx, Int32 dy, Int32 dz) const
Definition: Coord.h:91
openvdb::v9_0::math::Coord::minComponent
void minComponent(const Coord &other)
Perform a component-wise minimum with the other Coord.
Definition: Coord.h:175
openvdb::v9_0::math::Coord::asPointer
const Int32 * asPointer() const
Definition: Coord.h:141
openvdb::v9_0::math::Coord::x
Int32 x() const
Definition: Coord.h:130
openvdb::v9_0::math::Coord::setZ
Coord & setZ(Int32 z)
Definition: Coord.h:81
openvdb::v9_0::math::Coord::setY
Coord & setY(Int32 y)
Definition: Coord.h:80
openvdb::v9_0::math::Coord::lessThan
static bool lessThan(const Coord &a, const Coord &b)
Definition: Coord.h:208
openvdb::v9_0::math::Coord::z
Int32 z() const
Definition: Coord.h:132
openvdb::v9_0::math::Coord::setX
Coord & setX(Int32 x)
Definition: Coord.h:79
openvdb::v9_0::math::Coord::read
void read(std::istream &is)
Definition: Coord.h:219
openvdb::v9_0::tree::RootNode
Definition: RootNode.h:39
openvdb::v9_0::tree::RootNode::getNodeBoundingBox
static CoordBBox getNodeBoundingBox()
Return the bounding box of this RootNode, i.e., an infinite bounding box.
Definition: RootNode.h:406
openvdb::v9_0::tree::RootNode::setValueAndCache
void setValueAndCache(const Coord &xyz, const ValueType &value, AccessorT &)
Definition: RootNode.h:1884
openvdb::v9_0::tree::RootNode::ChildAllIter
DenseIter< RootNode, MapIter, ChildType, ValueType > ChildAllIter
Definition: RootNode.h:364
openvdb::v9_0::tree::RootNode::visit
void visit(VisitorOp &)
Definition: RootNode.h:3396
openvdb::v9_0::tree::RootNode::hasSameConfiguration
static bool hasSameConfiguration(const RootNode< OtherChildType > &other)
Return false if the other node's dimensions don't match this node's.
Definition: RootNode.h:1409
openvdb::v9_0::tree::RootNode::getValueDepth
int getValueDepth(const Coord &xyz) const
Return the tree depth (0 = root) at which the value of voxel (x, y, z) resides.
Definition: RootNode.h:1735
openvdb::v9_0::tree::RootNode::ValueOffCIter
ValueIter< const RootNode, MapCIter, ValueOffPred, const ValueType > ValueOffCIter
Definition: RootNode.h:370
openvdb::v9_0::tree::RootNode::RootNode
RootNode(const RootNode &other)
Definition: RootNode.h:75
openvdb::v9_0::tree::RootNode::cbeginChildOn
ChildOnCIter cbeginChildOn() const
Definition: RootNode.h:375
openvdb::v9_0::tree::RootNode::beginChildOn
ChildOnCIter beginChildOn() const
Definition: RootNode.h:378
openvdb::v9_0::tree::RootNode::beginChildOn
ChildOnIter beginChildOn()
Definition: RootNode.h:381
openvdb::v9_0::tree::RootNode::getDepth
Index getDepth() const
Definition: RootNode.h:464
openvdb::v9_0::tree::RootNode::isValueOn
bool isValueOn(const Coord &xyz) const
Definition: RootNode.h:1679
openvdb::v9_0::tree::RootNode::ValueOnCIter
ValueIter< const RootNode, MapCIter, ValueOnPred, const ValueType > ValueOnCIter
Definition: RootNode.h:368
openvdb::v9_0::tree::RootNode::getIndexRange
void getIndexRange(CoordBBox &bbox) const
Return the current index range. Both min and max are inclusive.
Definition: RootNode.h:1349
openvdb::v9_0::tree::RootNode::copyToDense
void copyToDense(const CoordBBox &bbox, DenseT &dense) const
Copy into a dense grid the values of all voxels, both active and inactive, that intersect a given bou...
Definition: RootNode.h:2244
openvdb::v9_0::tree::RootNode::operator=
RootNode & operator=(const RootNode &other)
Copy a root node of the same type as this node.
Definition: RootNode.h:1173
openvdb::v9_0::tree::RootNode::getMaxIndex
Coord getMaxIndex() const
Return the largest index of the current tree.
Definition: RootNode.h:1341
openvdb::v9_0::tree::RootNode::cbeginValueOff
ValueOffCIter cbeginValueOff() const
Definition: RootNode.h:386
openvdb::v9_0::tree::RootNode::probeLeafAndCache
LeafNodeType * probeLeafAndCache(const Coord &xyz, AccessorT &acc)
Same as probeLeaf() but, if necessary, update the given accessor with pointers to the nodes along the...
openvdb::v9_0::tree::RootNode::transientData
Index32 transientData() const
Return the transient data value.
Definition: RootNode.h:410
openvdb::v9_0::tree::RootNode::addLeafAndCache
void addLeafAndCache(LeafNodeType *leaf, AccessorT &)
Same as addLeaf() but, if necessary, update the given accessor with pointers to the nodes along the p...
Definition: RootNode.h:2589
openvdb::v9_0::tree::RootNode::getChildDim
static Index getChildDim()
Definition: RootNode.h:457
openvdb::v9_0::tree::RootNode::operator=
RootNode & operator=(const RootNode< OtherChildType > &other)
Copy a root node of the same tree configuration as this node but a different ValueType.
openvdb::v9_0::tree::RootNode::nonLeafCount
Index32 nonLeafCount() const
Definition: RootNode.h:1564
openvdb::v9_0::tree::RootNode::combine
void combine(RootNode &other, CombineOp &, bool prune=false)
Definition: RootNode.h:3204
openvdb::v9_0::tree::RootNode::addChild
bool addChild(ChildType *child)
Add the given child node at the root level. If a child node with the same origin already exists,...
Definition: RootNode.h:2623
openvdb::v9_0::tree::RootNode::getNodes
void getNodes(ArrayT &array)
Adds all nodes of a certain type to a container with the following API:
Definition: RootNode.h:2889
openvdb::v9_0::tree::RootNode::stealNode
NodeT * stealNode(const Coord &xyz, const ValueType &value, bool state)
Return a pointer to the node of type NodeT that contains voxel (x, y, z) and replace it with a tile o...
Definition: RootNode.h:2535
openvdb::v9_0::tree::RootNode::voxelizeActiveTiles
void voxelizeActiveTiles(bool threaded=true)
Densify active tiles, i.e., replace them with leaf-level active voxels.
Definition: RootNode.h:2218
openvdb::v9_0::tree::RootNode::touchLeafAndCache
LeafNodeType * touchLeafAndCache(const Coord &xyz, AccessorT &acc)
Same as touchLeaf() but, if necessary, update the given accessor with pointers to the nodes along the...
openvdb::v9_0::tree::RootNode::ValueOffIter
ValueIter< RootNode, MapIter, ValueOffPred, ValueType > ValueOffIter
Definition: RootNode.h:369
openvdb::v9_0::tree::RootNode::ValueAllIter
ValueIter< RootNode, MapIter, ValueAllPred, ValueType > ValueAllIter
Definition: RootNode.h:371
openvdb::v9_0::tree::RootNode::topologyUnion
void topologyUnion(const RootNode< OtherChildType > &other, const bool preserveTiles=false)
Union this tree's set of active values with the active values of the other tree, whose ValueType may ...
Definition: RootNode.h:3091
openvdb::v9_0::tree::RootNode::onLeafVoxelCount
Index64 onLeafVoxelCount() const
Definition: RootNode.h:1622
openvdb::v9_0::tree::RootNode::probeConstLeafAndCache
const LeafNodeType * probeConstLeafAndCache(const Coord &xyz, AccessorT &acc) const
openvdb::v9_0::tree::RootNode::clip
void clip(const CoordBBox &)
Set all voxels that lie outside the given axis-aligned box to the background.
Definition: RootNode.h:2474
openvdb::v9_0::tree::RootNode::probeLeaf
LeafNodeType * probeLeaf(const Coord &xyz)
Return a pointer to the leaf node that contains voxel (x, y, z). If no such node exists,...
Definition: RootNode.h:2805
openvdb::v9_0::tree::RootNode::hasCompatibleValueType
static bool hasCompatibleValueType(const RootNode< OtherChildType > &other)
Definition: RootNode.h:1441
openvdb::v9_0::tree::RootNode::cbeginValueAll
ValueAllCIter cbeginValueAll() const
Definition: RootNode.h:387
openvdb::v9_0::tree::RootNode::probeNodeAndCache
NodeT * probeNodeAndCache(const Coord &xyz, AccessorT &acc)
Same as probeNode() but, if necessary, update the given accessor with pointers to the nodes along the...
Definition: RootNode.h:2849
openvdb::v9_0::tree::RootNode::prune
void prune(const ValueType &tolerance=zeroVal< ValueType >())
Reduce the memory footprint of this tree by replacing with tiles any nodes whose values are all the s...
Definition: RootNode.h:2514
openvdb::v9_0::tree::RootNode::NodeChainType
typename NodeChain< RootNode, LEVEL >::Type NodeChainType
NodeChainType is a list of this tree's node types, from LeafNodeType to RootNode.
Definition: RootNode.h:49
openvdb::v9_0::tree::RootNode::isBackgroundTile
bool isBackgroundTile(const Tile &) const
Return true if the given tile is inactive and has the background value.
Definition: RootNode.h:1238
openvdb::v9_0::tree::RootNode::LeafNodeType
typename ChildType::LeafNodeType LeafNodeType
Definition: RootNode.h:42
openvdb::v9_0::tree::RootNode::eraseBackgroundTiles
size_t eraseBackgroundTiles()
Remove all background tiles.
Definition: RootNode.h:1272
openvdb::v9_0::tree::RootNode::topologyDifference
void topologyDifference(const RootNode< OtherChildType > &other)
Difference this tree's set of active values with the active values of the other tree,...
Definition: RootNode.h:3165
openvdb::v9_0::tree::RootNode::ValueOnIter
ValueIter< RootNode, MapIter, ValueOnPred, ValueType > ValueOnIter
Definition: RootNode.h:367
openvdb::v9_0::tree::RootNode::beginValueOn
ValueOnCIter beginValueOn() const
Definition: RootNode.h:388
openvdb::v9_0::tree::RootNode::merge
void merge(RootNode &other)
Efficiently merge another tree into this tree using one of several schemes.
Definition: RootNode.h:2979
openvdb::v9_0::tree::RootNode::ChildOnIter
ChildIter< RootNode, MapIter, ChildOnPred, ChildType > ChildOnIter
Definition: RootNode.h:360
openvdb::v9_0::tree::RootNode::offLeafVoxelCount
Index64 offLeafVoxelCount() const
Definition: RootNode.h:1634
openvdb::v9_0::tree::RootNode::getWidth
Index getWidth() const
Definition: RootNode.h:462
openvdb::v9_0::tree::RootNode::getTableSize
Index getTableSize() const
Return the number of entries in this node's table.
Definition: RootNode.h:460
openvdb::v9_0::tree::RootNode::combine2
void combine2(const RootNode &other0, const OtherRootNode &other1, CombineOp &op, bool prune=false)
Definition: RootNode.h:3294
openvdb::v9_0::tree::RootNode::modifyValueAndActiveState
void modifyValueAndActiveState(const Coord &xyz, const ModifyOp &op)
Apply a functor to the voxel at the given coordinates.
Definition: RootNode.h:2016
openvdb::v9_0::tree::RootNode::setValueOnlyAndCache
void setValueOnlyAndCache(const Coord &xyz, const ValueType &value, AccessorT &)
Definition: RootNode.h:1925
openvdb::v9_0::tree::RootNode::numBackgroundTiles
size_t numBackgroundTiles() const
Return the number of background tiles.
Definition: RootNode.h:1260
openvdb::v9_0::tree::RootNode::ChildOffCIter
ValueIter< const RootNode, MapCIter, ChildOffPred, ValueType > ChildOffCIter
Definition: RootNode.h:363
openvdb::v9_0::tree::RootNode::setValueOnly
void setValueOnly(const Coord &xyz, const ValueType &value)
Set the value of the voxel at the given coordinates but don't change its active state.
Definition: RootNode.h:1906
openvdb::v9_0::tree::RootNode::empty
bool empty() const
Return true if this node's table is either empty or contains only background tiles.
Definition: RootNode.h:448
openvdb::v9_0::tree::RootNode::probeConstLeaf
const LeafNodeType * probeConstLeaf(const Coord &xyz) const
Definition: RootNode.h:2813
openvdb::v9_0::tree::RootNode::fill
void fill(const CoordBBox &bbox, const ValueType &value, bool active=true)
Set all voxels within a given axis-aligned box to a constant value.
Definition: RootNode.h:2110
openvdb::v9_0::tree::RootNode::beginValueOff
ValueOffCIter beginValueOff() const
Definition: RootNode.h:389
openvdb::v9_0::tree::RootNode::setValueOffAndCache
void setValueOffAndCache(const Coord &xyz, const ValueType &value, AccessorT &)
Definition: RootNode.h:1841
openvdb::v9_0::tree::RootNode::addLeaf
void addLeaf(LeafNodeType *leaf)
Add the given leaf node to this tree, creating a new branch if necessary. If a leaf node with the sam...
Definition: RootNode.h:2554
openvdb::v9_0::tree::RootNode::getValueAndCache
const ValueType & getValueAndCache(const Coord &xyz, AccessorT &) const
openvdb::v9_0::tree::RootNode::cbeginChildAll
ChildAllCIter cbeginChildAll() const
Definition: RootNode.h:377
openvdb::v9_0::tree::RootNode::addTile
void addTile(const Coord &xyz, const ValueType &value, bool state)
Add a tile containing voxel (x, y, z) at the root level, deleting the existing branch if necessary.
Definition: RootNode.h:2638
openvdb::v9_0::tree::RootNode::beginChildAll
ChildAllIter beginChildAll()
Definition: RootNode.h:383
openvdb::v9_0::tree::RootNode::getLevel
static Index getLevel()
Definition: RootNode.h:455
openvdb::v9_0::tree::RootNode::writeTopology
bool writeTopology(std::ostream &, bool toHalf=false) const
Definition: RootNode.h:2288
openvdb::v9_0::tree::RootNode::ValueAllCIter
ValueIter< const RootNode, MapCIter, ValueAllPred, const ValueType > ValueAllCIter
Definition: RootNode.h:372
openvdb::v9_0::tree::RootNode::isValueOnAndCache
bool isValueOnAndCache(const Coord &xyz, AccessorT &) const
Definition: RootNode.h:1699
openvdb::v9_0::tree::RootNode::probeConstNodeAndCache
const NodeT * probeConstNodeAndCache(const Coord &xyz, AccessorT &acc) const
Definition: RootNode.h:2868
openvdb::v9_0::tree::RootNode::probeValue
bool probeValue(const Coord &xyz, ValueType &value) const
Definition: RootNode.h:2074
openvdb::v9_0::tree::RootNode::setActiveState
void setActiveState(const Coord &xyz, bool on)
Set the active state of the voxel at the given coordinates but don't change its value.
Definition: RootNode.h:1771
openvdb::v9_0::tree::RootNode::beginValueOn
ValueOnIter beginValueOn()
Definition: RootNode.h:391
openvdb::v9_0::tree::RootNode::modifyValueAndCache
void modifyValueAndCache(const Coord &xyz, const ModifyOp &op, AccessorT &)
Definition: RootNode.h:1980
openvdb::v9_0::tree::RootNode::visit2
void visit2(OtherRootNodeType &other, VisitorOp &)
Definition: RootNode.h:3432
openvdb::v9_0::tree::RootNode::cbeginChildOff
ChildOffCIter cbeginChildOff() const
Definition: RootNode.h:376
openvdb::v9_0::tree::RootNode::beginChildOff
ChildOffIter beginChildOff()
Definition: RootNode.h:382
openvdb::v9_0::tree::RootNode::onVoxelCount
Index64 onVoxelCount() const
Definition: RootNode.h:1590
openvdb::v9_0::tree::RootNode::beginChildOff
ChildOffCIter beginChildOff() const
Definition: RootNode.h:379
openvdb::v9_0::tree::RootNode::addTileAndCache
void addTileAndCache(Index level, const Coord &xyz, const ValueType &, bool state, AccessorT &)
Same as addTile() but, if necessary, update the given accessor with pointers to the nodes along the p...
Definition: RootNode.h:2685
openvdb::v9_0::tree::RootNode::ValueType
typename ChildType::ValueType ValueType
Definition: RootNode.h:43
openvdb::v9_0::tree::RootNode::setValueOff
void setValueOff(const Coord &xyz)
Mark the voxel at the given coordinates as inactive but don't change its value.
Definition: RootNode.h:1757
openvdb::v9_0::tree::RootNode::writeBuffers
void writeBuffers(std::ostream &, bool toHalf=false) const
Definition: RootNode.h:2430
openvdb::v9_0::tree::RootNode::cbeginValueOn
ValueOnCIter cbeginValueOn() const
Definition: RootNode.h:385
openvdb::v9_0::tree::RootNode::leafCount
Index32 leafCount() const
Definition: RootNode.h:1552
openvdb::v9_0::tree::RootNode::probeLeaf
const LeafNodeType * probeLeaf(const Coord &xyz) const
openvdb::v9_0::tree::RootNode::childCount
Index32 childCount() const
Definition: RootNode.h:1578
openvdb::v9_0::tree::RootNode::onTileCount
Index64 onTileCount() const
Definition: RootNode.h:1645
openvdb::v9_0::tree::RootNode::modifyValue
void modifyValue(const Coord &xyz, const ModifyOp &op)
Apply a functor to the value of the voxel at the given coordinates and mark the voxel as active.
Definition: RootNode.h:1948
openvdb::v9_0::tree::RootNode::visitActiveBBox
void visitActiveBBox(BBoxOp &) const
Call the templated functor BBoxOp with bounding box information for all active tiles and leaf nodes i...
Definition: RootNode.h:3379
openvdb::v9_0::tree::RootNode::~RootNode
~RootNode()
Definition: RootNode.h:123
openvdb::v9_0::tree::RootNode::offVoxelCount
Index64 offVoxelCount() const
Definition: RootNode.h:1606
openvdb::v9_0::tree::RootNode::touchLeaf
LeafNodeType * touchLeaf(const Coord &xyz)
Return a pointer to the leaf node that contains voxel (x, y, z). If no such node exists,...
Definition: RootNode.h:2726
openvdb::v9_0::tree::RootNode::BuildType
typename ChildType::BuildType BuildType
Definition: RootNode.h:44
openvdb::v9_0::tree::RootNode::setBackground
void setBackground(const ValueType &value, bool updateChildNodes)
Change inactive tiles or voxels with a value equal to +/- the old background to the specified value (...
Definition: RootNode.h:1211
openvdb::v9_0::tree::RootNode::ChildAllCIter
DenseIter< const RootNode, MapCIter, const ChildType, const ValueType > ChildAllCIter
Definition: RootNode.h:365
openvdb::v9_0::tree::RootNode::hasSameTopology
bool hasSameTopology(const RootNode< OtherChildType > &other) const
Return true if the given tree has the same node and active value topology as this tree (but possibly ...
Definition: RootNode.h:1362
openvdb::v9_0::tree::RootNode::denseFill
void denseFill(const CoordBBox &bbox, const ValueType &value, bool active=true)
Set all voxels within a given axis-aligned box to a constant value and ensure that those voxels are a...
Definition: RootNode.h:2168
openvdb::v9_0::tree::RootNode::beginChildAll
ChildAllCIter beginChildAll() const
Definition: RootNode.h:380
openvdb::v9_0::tree::RootNode::setActiveStateAndCache
void setActiveStateAndCache(const Coord &xyz, bool on, AccessorT &)
Definition: RootNode.h:1794
openvdb::v9_0::tree::RootNode::topologyIntersection
void topologyIntersection(const RootNode< OtherChildType > &other)
Intersects this tree's set of active values with the active values of the other tree,...
Definition: RootNode.h:3129
openvdb::v9_0::tree::RootNode::setTransientData
void setTransientData(Index32 transientData)
Set the transient data value.
Definition: RootNode.h:412
openvdb::v9_0::tree::RootNode::stealNodes
void stealNodes(ArrayT &array, const ValueType &value, bool state)
Steals all nodes of a certain type from the tree and adds them to a container with the following API:
Definition: RootNode.h:2947
openvdb::v9_0::tree::RootNode::getHeight
Index getHeight() const
Definition: RootNode.h:463
openvdb::v9_0::tree::RootNode::clear
void clear()
Definition: RootNode.h:1482
openvdb::v9_0::tree::RootNode::probeLeafAndCache
const LeafNodeType * probeLeafAndCache(const Coord &xyz, AccessorT &acc) const
openvdb::v9_0::tree::RootNode::probeValueAndCache
bool probeValueAndCache(const Coord &xyz, ValueType &value, AccessorT &) const
Definition: RootNode.h:2090
openvdb::v9_0::tree::RootNode::probeConstNode
const NodeT * probeConstNode(const Coord &xyz) const
Definition: RootNode.h:2788
openvdb::v9_0::tree::RootNode::evalActiveBoundingBox
void evalActiveBoundingBox(CoordBBox &bbox, bool visitVoxels=true) const
Expand the specified bbox so it includes the active tiles of this root node as well as all the active...
Definition: RootNode.h:1493
openvdb::v9_0::tree::RootNode::background
const ValueType & background() const
Return this node's background value.
Definition: RootNode.h:430
openvdb::v9_0::tree::RootNode::getNodeLog2Dims
static void getNodeLog2Dims(std::vector< Index > &dims)
Definition: RootNode.h:1325
openvdb::v9_0::tree::RootNode::RootNode
RootNode(const RootNode< OtherChildType > &other)
Construct a new tree that reproduces the topology and active states of a tree of a different ValueTyp...
Definition: RootNode.h:84
openvdb::v9_0::tree::RootNode::beginValueOff
ValueOffIter beginValueOff()
Definition: RootNode.h:392
openvdb::v9_0::tree::RootNode::ChildOffIter
ValueIter< RootNode, MapIter, ChildOffPred, const ValueType > ChildOffIter
Definition: RootNode.h:362
openvdb::v9_0::tree::RootNode::sparseFill
void sparseFill(const CoordBBox &bbox, const ValueType &value, bool active=true)
Definition: RootNode.h:539
openvdb::v9_0::tree::RootNode::getMinIndex
Coord getMinIndex() const
Return the smallest index of the current tree.
Definition: RootNode.h:1334
openvdb::v9_0::tree::RootNode::ChildNodeType
ChildType ChildNodeType
Definition: RootNode.h:41
openvdb::v9_0::tree::RootNode::hasActiveTiles
bool hasActiveTiles() const
Return true if this root node, or any of its child nodes, have active tiles.
Definition: RootNode.h:1688
openvdb::v9_0::tree::RootNode::getValueDepthAndCache
int getValueDepthAndCache(const Coord &xyz, AccessorT &) const
Definition: RootNode.h:1745
openvdb::v9_0::tree::RootNode::getValue
const ValueType & getValue(const Coord &xyz) const
Definition: RootNode.h:1711
openvdb::v9_0::tree::RootNode::nodeCount
void nodeCount(std::vector< Index32 > &vec) const
Definition: RootNode.h:1660
openvdb::v9_0::tree::RootNode::memUsage
Index64 memUsage() const
Return the total amount of memory in bytes occupied by this node and its children.
Definition: RootNode.h:1468
openvdb::v9_0::tree::RootNode::setValueOn
void setValueOn(const Coord &xyz, const ValueType &value)
Set the value of the voxel at the given coordinates and mark the voxel as active.
Definition: RootNode.h:1865
openvdb::v9_0::tree::RootNode::stealNodes
void stealNodes(ArrayT &array)
Definition: RootNode.h:818
openvdb::v9_0::tree::RootNode::expand
bool expand(const Coord &xyz)
Expand this node's table so that (x, y, z) is included in the index range.
Definition: RootNode.h:1311
openvdb::v9_0::tree::RootNode::readBuffers
void readBuffers(std::istream &, bool fromHalf=false)
Definition: RootNode.h:2440
openvdb::v9_0::tree::RootNode::modifyValueAndActiveStateAndCache
void modifyValueAndActiveStateAndCache(const Coord &xyz, const ModifyOp &op, AccessorT &)
Definition: RootNode.h:2043
openvdb::v9_0::tree::RootNode::beginValueAll
ValueAllCIter beginValueAll() const
Definition: RootNode.h:390
openvdb::v9_0::tree::RootNode::probeNode
NodeT * probeNode(const Coord &xyz)
Return a pointer to the node that contains voxel (x, y, z). If no such node exists,...
Definition: RootNode.h:2770
openvdb::v9_0::tree::RootNode::readTopology
bool readTopology(std::istream &, bool fromHalf=false)
Definition: RootNode.h:2324
openvdb::v9_0::tree::RootNode::ChildOnCIter
ChildIter< const RootNode, MapCIter, ChildOnPred, const ChildType > ChildOnCIter
Definition: RootNode.h:361
openvdb::v9_0::tree::RootNode::beginValueAll
ValueAllIter beginValueAll()
Definition: RootNode.h:393
openvdb::v9_0::tree::RootNode::RootNode
friend class RootNode
Definition: RootNode.h:903
openvdb::v9_0::util::RootNodeMask
Definition: NodeMasks.h:1067
openvdb::v9_0::util::RootNodeMask::isOn
bool isOn(Index32 i) const
Definition: NodeMasks.h:1331
openvdb::v9_0::util::RootNodeMask::load
void load(std::istream &is)
Definition: NodeMasks.h:1372
nanovdb::operator*
Vec3< T2 > operator*(T1 scalar, const Vec3< T2 > &vec)
Definition: NanoVDB.h:1163
nanovdb::CoordBBox
BBox< Coord > CoordBBox
Definition: NanoVDB.h:1658
openvdb::v9_0::io::truncateRealToHalf
T truncateRealToHalf(const T &val)
Return the given value truncated to 16-bit float precision.
Definition: Compression.h:216
openvdb::v9_0::io::getFormatVersion
OPENVDB_API uint32_t getFormatVersion(std::ios_base &)
Return the file format version number associated with the given input stream.
openvdb::v9_0::io::setGridBackgroundValuePtr
OPENVDB_API void setGridBackgroundValuePtr(std::ios_base &, const void *background)
Specify (a pointer to) the background value of the grid currently being read from or written to the g...
openvdb::v9_0::math::isExactlyEqual
bool isExactlyEqual(const T0 &a, const T1 &b)
Return true if a is exactly equal to b.
Definition: Math.h:444
openvdb::v9_0::math::operator!=
bool operator!=(const Vec3< T0 > &v0, const Vec3< T1 > &v1)
Inequality operator, does exact floating point comparisons.
Definition: Vec3.h:485
openvdb::v9_0::math::isApproxEqual
bool isApproxEqual(const Type &a, const Type &b, const Type &tolerance)
Return true if a is equal to b to within the given tolerance.
Definition: Math.h:407
openvdb::v9_0::math::operator==
bool operator==(const Vec3< T0 > &v0, const Vec3< T1 > &v1)
Equality operator, does exact floating point comparisons.
Definition: Vec3.h:477
openvdb::v9_0::math::negative
T negative(const T &val)
Return the unary negation of the given value.
Definition: Math.h:127
openvdb::v9_0::tools::composite::min
const std::enable_if<!VecTraits< T >::IsVec, T >::type & min(const T &a, const T &b)
Definition: Composite.h:103
openvdb::v9_0::tools::prune
void prune(TreeT &tree, typename TreeT::ValueType tolerance=zeroVal< typename TreeT::ValueType >(), bool threaded=true, size_t grainSize=1)
Reduce the memory footprint of a tree by replacing with tiles any nodes whose values are all the same...
Definition: Prune.h:335
openvdb::v9_0::tools::clip
GridType::Ptr clip(const GridType &grid, const BBoxd &bbox, bool keepInterior=true)
Clip the given grid against a world-space bounding box and return a new grid containing the result.
Definition: Clip.h:352
openvdb::v9_0::tools::copyToDense
void copyToDense(const GridOrTreeT &sparse, DenseT &dense, bool serial=false)
Populate a dense grid with the values of voxels from a sparse grid, where the sparse grid intersects ...
Definition: Dense.h:421
openvdb::v9_0::tools::memUsage
Index64 memUsage(const TreeT &tree, bool threaded=true)
Return the total amount of memory in bytes occupied by this tree.
Definition: Count.h:408
openvdb::v9_0::util::FindHighestOn
Index32 FindHighestOn(Index32 v)
Return the most significant on bit of the given 32-bit value.
Definition: NodeMasks.h:159
openvdb::v9_0::Index
Index32 Index
Definition: Types.h:54
openvdb::v9_0::Index32
uint32_t Index32
Definition: Types.h:52
openvdb::v9_0::Int32
int32_t Int32
Definition: Types.h:56
openvdb::v9_0::Index64
uint64_t Index64
Definition: Types.h:53
openvdb::v9_0::zeroVal
T zeroVal()
Return the value of type T that corresponds to zero.
Definition: Math.h:69
openvdb::v9_0::MERGE_ACTIVE_STATES
@ MERGE_ACTIVE_STATES
Definition: Types.h:389
openvdb::v9_0::MERGE_NODES
@ MERGE_NODES
Definition: Types.h:390
openvdb::v9_0::MERGE_ACTIVE_STATES_AND_NODES
@ MERGE_ACTIVE_STATES_AND_NODES
Definition: Types.h:391
openvdb::v9_0::OPENVDB_FILE_VERSION_ROOTNODE_MAP
@ OPENVDB_FILE_VERSION_ROOTNODE_MAP
Definition: version.h.in:236
openvdb_houdini::combine
ValueType combine(const ValueType &v0, const ValueType &v1, const ValueType &v2, const openvdb::Vec3d &w)
Combine different value types.
Definition: AttributeTransferUtil.h:141
openvdb
Definition: Exceptions.h:13
Exceptions.h
OPENVDB_THROW
#define OPENVDB_THROW(exception, message)
Definition: Exceptions.h:74
Types.h
openvdb::v9_0::CanConvertType
CanConvertType<FromType, ToType>::value is true if a value of type ToType can be constructed from a v...
Definition: Types.h:285
openvdb::v9_0::SwappedCombineOp
Definition: Types.h:542
openvdb::v9_0::TypeList
A list of types (not necessarily unique)
Definition: TypeList.h:366
openvdb::v9_0::tree::NodeChain
NodeChain<RootNodeType, RootNodeType::LEVEL>::Type is a openvdb::TypeList that lists the types of the...
Definition: RootNode.h:1007
openvdb::v9_0::tree::NodeChain::SubtreeT
typename NodeChain< typename HeadT::ChildNodeType, HeadLevel-1 >::Type SubtreeT
Definition: RootNode.h:1008
openvdb::v9_0::tree::NodeChain::Type
typename SubtreeT::template Append< HeadT > Type
Definition: RootNode.h:1009
openvdb::v9_0::tree::RootNodeCombineHelper< CombineOp, RootT, OtherRootT, true >::combine2
static void combine2(RootT &self, const RootT &other0, const OtherRootT &other1, CombineOp &op, bool prune)
Definition: RootNode.h:3283
openvdb::v9_0::tree::RootNodeCombineHelper
Definition: RootNode.h:3263
openvdb::v9_0::tree::RootNodeCombineHelper::combine2
static void combine2(RootT &self, const RootT &, const OtherRootT &other1, CombineOp &, bool)
Definition: RootNode.h:3264
openvdb::v9_0::tree::RootNodeCopyHelper< RootT, OtherRootT, true >::copyWithValueConversion
static void copyWithValueConversion(RootT &self, const OtherRootT &other)
Definition: RootNode.h:1132
openvdb::v9_0::tree::RootNodeCopyHelper
Definition: RootNode.h:1113
openvdb::v9_0::tree::RootNodeCopyHelper::copyWithValueConversion
static void copyWithValueConversion(RootT &self, const OtherRootT &other)
Definition: RootNode.h:1114
openvdb::v9_0::tree::RootNode::SameConfiguration
SameConfiguration<OtherNodeType>::value is true if and only if OtherNodeType is the type of a RootNod...
Definition: RootNode.h:64
openvdb::v9_0::tree::RootNode::ValueConverter
ValueConverter<T>::Type is the type of a RootNode having the same child hierarchy as this node but a ...
Definition: RootNode.h:56
openvdb::v9_0::tree::SameRootConfig
Definition: RootNode.h:1026
OPENVDB_VERSION_NAME
#define OPENVDB_VERSION_NAME
The version namespace name for this library version.
Definition: version.h.in:116
OPENVDB_USE_VERSION_NAMESPACE
#define OPENVDB_USE_VERSION_NAMESPACE
Definition: version.h.in:202