OpenVDB 11.0.0

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LeafNode.h
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1// Copyright Contributors to the OpenVDB Project
2// SPDX-License-Identifier: MPL-2.0
3
4#ifndef OPENVDB_TREE_LEAFNODE_HAS_BEEN_INCLUDED
5#define OPENVDB_TREE_LEAFNODE_HAS_BEEN_INCLUDED
6
7#include <openvdb/Types.h>
8#include <openvdb/util/NodeMasks.h>
9#include <openvdb/io/Compression.h> // for io::readData(), etc.
10#include "Iterator.h"
11#include "LeafBuffer.h"
12#include <algorithm> // for std::nth_element()
13#include <iostream>
14#include <memory>
15#include <sstream>
16#include <string>
17#include <type_traits>
18#include <vector>
19
20
21 class TestLeaf;
22 template<typename> class TestLeafIO;
23
24 namespace openvdb {
25 OPENVDB_USE_VERSION_NAMESPACE
26 namespace OPENVDB_VERSION_NAME {
27 namespace tree {
28
29 template<Index, typename> struct SameLeafConfig; // forward declaration
30
31
32/// @brief Templated block class to hold specific data types and a fixed
33/// number of values determined by Log2Dim. The actual coordinate
34/// dimension of the block is 2^Log2Dim, i.e. Log2Dim=3 corresponds to
35/// a LeafNode that spans a 8^3 block.
36 template<typename T, Index Log2Dim>
37 class LeafNode
38{
39 public:
40 using BuildType = T;
41 using ValueType = T;
42 using Buffer = LeafBuffer<ValueType, Log2Dim>;
43 using LeafNodeType = LeafNode<ValueType, Log2Dim>;
44 using NodeMaskType = util::NodeMask<Log2Dim>;
45 using Ptr = SharedPtr<LeafNode>;
46
47 static const Index
48 LOG2DIM = Log2Dim, // needed by parent nodes
49 TOTAL = Log2Dim, // needed by parent nodes
50 DIM = 1 << TOTAL, // dimension along one coordinate direction
51 NUM_VALUES = 1 << 3 * Log2Dim,
52 NUM_VOXELS = NUM_VALUES, // total number of voxels represented by this node
53 SIZE = NUM_VALUES,
54 LEVEL = 0; // level 0 = leaf
55
56 /// @brief ValueConverter<T>::Type is the type of a LeafNode having the same
57 /// dimensions as this node but a different value type, T.
58 template<typename OtherValueType>
59 struct ValueConverter { using Type = LeafNode<OtherValueType, Log2Dim>; };
60
61 /// @brief SameConfiguration<OtherNodeType>::value is @c true if and only if
62 /// OtherNodeType is the type of a LeafNode with the same dimensions as this node.
63 template<typename OtherNodeType>
64 struct SameConfiguration {
65 static const bool value = SameLeafConfig<LOG2DIM, OtherNodeType>::value;
66 };
67
68
69 /// Default constructor
70 LeafNode();
71
72 /// @brief Constructor
73 /// @param coords the grid index coordinates of a voxel
74 /// @param value a value with which to fill the buffer
75 /// @param active the active state to which to initialize all voxels
76 explicit LeafNode(const Coord& coords,
77 const ValueType& value = zeroVal<ValueType>(),
78 bool active = false);
79
80 /// @brief "Partial creation" constructor used during file input
81 /// @param coords the grid index coordinates of a voxel
82 /// @param value a value with which to fill the buffer
83 /// @param active the active state to which to initialize all voxels
84 /// @details This constructor does not allocate memory for voxel values.
85 LeafNode(PartialCreate,
86 const Coord& coords,
87 const ValueType& value = zeroVal<ValueType>(),
88 bool active = false);
89
90 /// Deep copy constructor
91 LeafNode(const LeafNode&);
92
93 /// Deep assignment operator
94 LeafNode& operator=(const LeafNode&) = default;
95
96 /// Value conversion copy constructor
97 template<typename OtherValueType>
98 explicit LeafNode(const LeafNode<OtherValueType, Log2Dim>& other);
99
100 /// Topology copy constructor
101 template<typename OtherValueType>
102 LeafNode(const LeafNode<OtherValueType, Log2Dim>& other,
103 const ValueType& offValue, const ValueType& onValue, TopologyCopy);
104
105 /// Topology copy constructor
106 template<typename OtherValueType>
107 LeafNode(const LeafNode<OtherValueType, Log2Dim>& other,
108 const ValueType& background, TopologyCopy);
109
110 /// Destructor.
111 ~LeafNode();
112
113 //
114 // Statistics
115 //
116 /// Return log2 of the dimension of this LeafNode, e.g. 3 if dimensions are 8^3
117 static Index log2dim() { return Log2Dim; }
118 /// Return the number of voxels in each coordinate dimension.
119 static Index dim() { return DIM; }
120 /// Return the total number of voxels represented by this LeafNode
121 static Index size() { return SIZE; }
122 /// Return the total number of voxels represented by this LeafNode
123 static Index numValues() { return SIZE; }
124 /// Return the level of this node, which by definition is zero for LeafNodes
125 static Index getLevel() { return LEVEL; }
126 /// Append the Log2Dim of this LeafNode to the specified vector
127 static void getNodeLog2Dims(std::vector<Index>& dims) { dims.push_back(Log2Dim); }
128 /// Return the dimension of child nodes of this LeafNode, which is one for voxels.
129 static Index getChildDim() { return 1; }
130 /// Return the leaf count for this node, which is one.
131 static Index32 leafCount() { return 1; }
132 /// no-op
133 void nodeCount(std::vector<Index32> &) const {}
134 /// Return the non-leaf count for this node, which is zero.
135 static Index32 nonLeafCount() { return 0; }
136 /// Return the child count for this node, which is zero.
137 static Index32 childCount() { return 0; }
138
139 /// Return the number of voxels marked On.
140 Index64 onVoxelCount() const { return mValueMask.countOn(); }
141 /// Return the number of voxels marked Off.
142 Index64 offVoxelCount() const { return mValueMask.countOff(); }
143 Index64 onLeafVoxelCount() const { return onVoxelCount(); }
144 Index64 offLeafVoxelCount() const { return offVoxelCount(); }
145 static Index64 onTileCount() { return 0; }
146 static Index64 offTileCount() { return 0; }
147 /// Return @c true if this node has no active voxels.
148 bool isEmpty() const { return mValueMask.isOff(); }
149 /// Return @c true if this node contains only active voxels.
150 bool isDense() const { return mValueMask.isOn(); }
151 /// Return @c true if memory for this node's buffer has been allocated.
152 bool isAllocated() const { return !mBuffer.isOutOfCore() && !mBuffer.empty(); }
153 /// Allocate memory for this node's buffer if it has not already been allocated.
154 bool allocate() { return mBuffer.allocate(); }
155
156 /// Return the memory in bytes occupied by this node.
157 Index64 memUsage() const;
158 Index64 memUsageIfLoaded() const;
159
160 /// Expand the given bounding box so that it includes this leaf node's active voxels.
161 /// If visitVoxels is false this LeafNode will be approximated as dense, i.e. with all
162 /// voxels active. Else the individual active voxels are visited to produce a tight bbox.
163 void evalActiveBoundingBox(CoordBBox& bbox, bool visitVoxels = true) const;
164
165 /// @brief Return the bounding box of this node, i.e., the full index space
166 /// spanned by this leaf node.
167 CoordBBox getNodeBoundingBox() const { return CoordBBox::createCube(mOrigin, DIM); }
168
169 /// Set the grid index coordinates of this node's local origin.
170 void setOrigin(const Coord& origin) { mOrigin = origin; }
171 //@{
172 /// Return the grid index coordinates of this node's local origin.
173 const Coord& origin() const { return mOrigin; }
174 void getOrigin(Coord& origin) const { origin = mOrigin; }
175 void getOrigin(Int32& x, Int32& y, Int32& z) const { mOrigin.asXYZ(x, y, z); }
176 //@}
177
178 /// Return the linear table offset of the given global or local coordinates.
179 static Index coordToOffset(const Coord& xyz);
180 /// @brief Return the local coordinates for a linear table offset,
181 /// where offset 0 has coordinates (0, 0, 0).
182 static Coord offsetToLocalCoord(Index n);
183 /// Return the global coordinates for a linear table offset.
184 Coord offsetToGlobalCoord(Index n) const;
185
186 /// Return the transient data value.
187 Index32 transientData() const { return mTransientData; }
188 /// Set the transient data value.
189 void setTransientData(Index32 transientData) { mTransientData = transientData; }
190
191 /// Return a string representation of this node.
192 std::string str() const;
193
194 /// @brief Return @c true if the given node (which may have a different @c ValueType
195 /// than this node) has the same active value topology as this node.
196 template<typename OtherType, Index OtherLog2Dim>
197 bool hasSameTopology(const LeafNode<OtherType, OtherLog2Dim>* other) const;
198
199 /// Check for buffer, state and origin equivalence.
200 bool operator==(const LeafNode& other) const;
201 bool operator!=(const LeafNode& other) const { return !(other == *this); }
202
203 protected:
204 using MaskOnIterator = typename NodeMaskType::OnIterator;
205 using MaskOffIterator = typename NodeMaskType::OffIterator;
206 using MaskDenseIterator = typename NodeMaskType::DenseIterator;
207
208 // Type tags to disambiguate template instantiations
209 struct ValueOn {}; struct ValueOff {}; struct ValueAll {};
210 struct ChildOn {}; struct ChildOff {}; struct ChildAll {};
211
212 template<typename MaskIterT, typename NodeT, typename ValueT, typename TagT>
213 struct ValueIter:
214 // Derives from SparseIteratorBase, but can also be used as a dense iterator,
215 // if MaskIterT is a dense mask iterator type.
216 public SparseIteratorBase<
217 MaskIterT, ValueIter<MaskIterT, NodeT, ValueT, TagT>, NodeT, ValueT>
218 {
219 using BaseT = SparseIteratorBase<MaskIterT, ValueIter, NodeT, ValueT>;
220
221 ValueIter() {}
222 ValueIter(const MaskIterT& iter, NodeT* parent): BaseT(iter, parent) {}
223
224 ValueT& getItem(Index pos) const { return this->parent().getValue(pos); }
225 ValueT& getValue() const { return this->parent().getValue(this->pos()); }
226
227 // Note: setItem() can't be called on const iterators.
228 void setItem(Index pos, const ValueT& value) const
229 {
230 this->parent().setValueOnly(pos, value);
231 }
232 // Note: setValue() can't be called on const iterators.
233 void setValue(const ValueT& value) const
234 {
235 this->parent().setValueOnly(this->pos(), value);
236 }
237
238 // Note: modifyItem() can't be called on const iterators.
239 template<typename ModifyOp>
240 void modifyItem(Index n, const ModifyOp& op) const { this->parent().modifyValue(n, op); }
241 // Note: modifyValue() can't be called on const iterators.
242 template<typename ModifyOp>
243 void modifyValue(const ModifyOp& op) const { this->parent().modifyValue(this->pos(), op); }
244 };
245
246 /// Leaf nodes have no children, so their child iterators have no get/set accessors.
247 template<typename MaskIterT, typename NodeT, typename TagT>
248 struct ChildIter:
249 public SparseIteratorBase<MaskIterT, ChildIter<MaskIterT, NodeT, TagT>, NodeT, ValueType>
250 {
251 ChildIter() {}
252 ChildIter(const MaskIterT& iter, NodeT* parent): SparseIteratorBase<
253 MaskIterT, ChildIter<MaskIterT, NodeT, TagT>, NodeT, ValueType>(iter, parent) {}
254 };
255
256 template<typename NodeT, typename ValueT, typename TagT>
257 struct DenseIter: public DenseIteratorBase<
258 MaskDenseIterator, DenseIter<NodeT, ValueT, TagT>, NodeT, /*ChildT=*/void, ValueT>
259 {
260 using BaseT = DenseIteratorBase<MaskDenseIterator, DenseIter, NodeT, void, ValueT>;
261 using NonConstValueT = typename BaseT::NonConstValueType;
262
263 DenseIter() {}
264 DenseIter(const MaskDenseIterator& iter, NodeT* parent): BaseT(iter, parent) {}
265
266 bool getItem(Index pos, void*& child, NonConstValueT& value) const
267 {
268 value = this->parent().getValue(pos);
269 child = nullptr;
270 return false; // no child
271 }
272
273 // Note: setItem() can't be called on const iterators.
274 //void setItem(Index pos, void* child) const {}
275
276 // Note: unsetItem() can't be called on const iterators.
277 void unsetItem(Index pos, const ValueT& value) const
278 {
279 this->parent().setValueOnly(pos, value);
280 }
281 };
282
283 public:
284 using ValueOnIter = ValueIter<MaskOnIterator, LeafNode, const ValueType, ValueOn>;
285 using ValueOnCIter = ValueIter<MaskOnIterator, const LeafNode, const ValueType, ValueOn>;
286 using ValueOffIter = ValueIter<MaskOffIterator, LeafNode, const ValueType, ValueOff>;
287 using ValueOffCIter = ValueIter<MaskOffIterator,const LeafNode,const ValueType,ValueOff>;
288 using ValueAllIter = ValueIter<MaskDenseIterator, LeafNode, const ValueType, ValueAll>;
289 using ValueAllCIter = ValueIter<MaskDenseIterator,const LeafNode,const ValueType,ValueAll>;
290 using ChildOnIter = ChildIter<MaskOnIterator, LeafNode, ChildOn>;
291 using ChildOnCIter = ChildIter<MaskOnIterator, const LeafNode, ChildOn>;
292 using ChildOffIter = ChildIter<MaskOffIterator, LeafNode, ChildOff>;
293 using ChildOffCIter = ChildIter<MaskOffIterator, const LeafNode, ChildOff>;
294 using ChildAllIter = DenseIter<LeafNode, ValueType, ChildAll>;
295 using ChildAllCIter = DenseIter<const LeafNode, const ValueType, ChildAll>;
296
297 ValueOnCIter cbeginValueOn() const { return ValueOnCIter(mValueMask.beginOn(), this); }
298 ValueOnCIter beginValueOn() const { return ValueOnCIter(mValueMask.beginOn(), this); }
299 ValueOnIter beginValueOn() { return ValueOnIter(mValueMask.beginOn(), this); }
300 ValueOffCIter cbeginValueOff() const { return ValueOffCIter(mValueMask.beginOff(), this); }
301 ValueOffCIter beginValueOff() const { return ValueOffCIter(mValueMask.beginOff(), this); }
302 ValueOffIter beginValueOff() { return ValueOffIter(mValueMask.beginOff(), this); }
303 ValueAllCIter cbeginValueAll() const { return ValueAllCIter(mValueMask.beginDense(), this); }
304 ValueAllCIter beginValueAll() const { return ValueAllCIter(mValueMask.beginDense(), this); }
305 ValueAllIter beginValueAll() { return ValueAllIter(mValueMask.beginDense(), this); }
306
307 ValueOnCIter cendValueOn() const { return ValueOnCIter(mValueMask.endOn(), this); }
308 ValueOnCIter endValueOn() const { return ValueOnCIter(mValueMask.endOn(), this); }
309 ValueOnIter endValueOn() { return ValueOnIter(mValueMask.endOn(), this); }
310 ValueOffCIter cendValueOff() const { return ValueOffCIter(mValueMask.endOff(), this); }
311 ValueOffCIter endValueOff() const { return ValueOffCIter(mValueMask.endOff(), this); }
312 ValueOffIter endValueOff() { return ValueOffIter(mValueMask.endOff(), this); }
313 ValueAllCIter cendValueAll() const { return ValueAllCIter(mValueMask.endDense(), this); }
314 ValueAllCIter endValueAll() const { return ValueAllCIter(mValueMask.endDense(), this); }
315 ValueAllIter endValueAll() { return ValueAllIter(mValueMask.endDense(), this); }
316
317 // Note that [c]beginChildOn() and [c]beginChildOff() actually return end iterators,
318 // because leaf nodes have no children.
319 ChildOnCIter cbeginChildOn() const { return ChildOnCIter(mValueMask.endOn(), this); }
320 ChildOnCIter beginChildOn() const { return ChildOnCIter(mValueMask.endOn(), this); }
321 ChildOnIter beginChildOn() { return ChildOnIter(mValueMask.endOn(), this); }
322 ChildOffCIter cbeginChildOff() const { return ChildOffCIter(mValueMask.endOff(), this); }
323 ChildOffCIter beginChildOff() const { return ChildOffCIter(mValueMask.endOff(), this); }
324 ChildOffIter beginChildOff() { return ChildOffIter(mValueMask.endOff(), this); }
325 ChildAllCIter cbeginChildAll() const { return ChildAllCIter(mValueMask.beginDense(), this); }
326 ChildAllCIter beginChildAll() const { return ChildAllCIter(mValueMask.beginDense(), this); }
327 ChildAllIter beginChildAll() { return ChildAllIter(mValueMask.beginDense(), this); }
328
329 ChildOnCIter cendChildOn() const { return ChildOnCIter(mValueMask.endOn(), this); }
330 ChildOnCIter endChildOn() const { return ChildOnCIter(mValueMask.endOn(), this); }
331 ChildOnIter endChildOn() { return ChildOnIter(mValueMask.endOn(), this); }
332 ChildOffCIter cendChildOff() const { return ChildOffCIter(mValueMask.endOff(), this); }
333 ChildOffCIter endChildOff() const { return ChildOffCIter(mValueMask.endOff(), this); }
334 ChildOffIter endChildOff() { return ChildOffIter(mValueMask.endOff(), this); }
335 ChildAllCIter cendChildAll() const { return ChildAllCIter(mValueMask.endDense(), this); }
336 ChildAllCIter endChildAll() const { return ChildAllCIter(mValueMask.endDense(), this); }
337 ChildAllIter endChildAll() { return ChildAllIter(mValueMask.endDense(), this); }
338
339 //
340 // Buffer management
341 //
342 /// @brief Exchange this node's data buffer with the given data buffer
343 /// without changing the active states of the values.
344 void swap(Buffer& other) { mBuffer.swap(other); }
345 const Buffer& buffer() const { return mBuffer; }
346 Buffer& buffer() { return mBuffer; }
347
348 //
349 // I/O methods
350 //
351 /// @brief Read in just the topology.
352 /// @param is the stream from which to read
353 /// @param fromHalf if true, floating-point input values are assumed to be 16-bit
354 void readTopology(std::istream& is, bool fromHalf = false);
355 /// @brief Write out just the topology.
356 /// @param os the stream to which to write
357 /// @param toHalf if true, output floating-point values as 16-bit half floats
358 void writeTopology(std::ostream& os, bool toHalf = false) const;
359
360 /// @brief Read buffers from a stream.
361 /// @param is the stream from which to read
362 /// @param fromHalf if true, floating-point input values are assumed to be 16-bit
363 void readBuffers(std::istream& is, bool fromHalf = false);
364 /// @brief Read buffers that intersect the given bounding box.
365 /// @param is the stream from which to read
366 /// @param bbox an index-space bounding box
367 /// @param fromHalf if true, floating-point input values are assumed to be 16-bit
368 void readBuffers(std::istream& is, const CoordBBox& bbox, bool fromHalf = false);
369 /// @brief Write buffers to a stream.
370 /// @param os the stream to which to write
371 /// @param toHalf if true, output floating-point values as 16-bit half floats
372 void writeBuffers(std::ostream& os, bool toHalf = false) const;
373
374 size_t streamingSize(bool toHalf = false) const;
375
376 //
377 // Accessor methods
378 //
379 /// Return the value of the voxel at the given coordinates.
380 const ValueType& getValue(const Coord& xyz) const;
381 /// Return the value of the voxel at the given linear offset.
382 const ValueType& getValue(Index offset) const;
383
384 /// @brief Return @c true if the voxel at the given coordinates is active.
385 /// @param xyz the coordinates of the voxel to be probed
386 /// @param[out] val the value of the voxel at the given coordinates
387 bool probeValue(const Coord& xyz, ValueType& val) const;
388 /// @brief Return @c true if the voxel at the given offset is active.
389 /// @param offset the linear offset of the voxel to be probed
390 /// @param[out] val the value of the voxel at the given coordinates
391 bool probeValue(Index offset, ValueType& val) const;
392
393 /// Return the level (i.e., 0) at which leaf node values reside.
394 static Index getValueLevel(const Coord&) { return LEVEL; }
395
396 /// Set the active state of the voxel at the given coordinates but don't change its value.
397 void setActiveState(const Coord& xyz, bool on);
398 /// Set the active state of the voxel at the given offset but don't change its value.
399 void setActiveState(Index offset, bool on) { assert(offset<SIZE); mValueMask.set(offset, on); }
400
401 /// Set the value of the voxel at the given coordinates but don't change its active state.
402 void setValueOnly(const Coord& xyz, const ValueType& val);
403 /// Set the value of the voxel at the given offset but don't change its active state.
404 void setValueOnly(Index offset, const ValueType& val);
405
406 /// Mark the voxel at the given coordinates as inactive but don't change its value.
407 void setValueOff(const Coord& xyz) { mValueMask.setOff(LeafNode::coordToOffset(xyz)); }
408 /// Mark the voxel at the given offset as inactive but don't change its value.
409 void setValueOff(Index offset) { assert(offset < SIZE); mValueMask.setOff(offset); }
410
411 /// Set the value of the voxel at the given coordinates and mark the voxel as inactive.
412 void setValueOff(const Coord& xyz, const ValueType& val);
413 /// Set the value of the voxel at the given offset and mark the voxel as inactive.
414 void setValueOff(Index offset, const ValueType& val);
415
416 /// Mark the voxel at the given coordinates as active but don't change its value.
417 void setValueOn(const Coord& xyz) { mValueMask.setOn(LeafNode::coordToOffset(xyz)); }
418 /// Mark the voxel at the given offset as active but don't change its value.
419 void setValueOn(Index offset) { assert(offset < SIZE); mValueMask.setOn(offset); }
420 /// Set the value of the voxel at the given coordinates and mark the voxel as active.
421 void setValueOn(const Coord& xyz, const ValueType& val) {
422 this->setValueOn(LeafNode::coordToOffset(xyz), val);
423 }
424 /// Set the value of the voxel at the given coordinates and mark the voxel as active.
425 void setValue(const Coord& xyz, const ValueType& val) { this->setValueOn(xyz, val); }
426 /// Set the value of the voxel at the given offset and mark the voxel as active.
427 void setValueOn(Index offset, const ValueType& val) {
428 mBuffer.setValue(offset, val);
429 mValueMask.setOn(offset);
430 }
431
432 /// @brief Apply a functor to the value of the voxel at the given offset
433 /// and mark the voxel as active.
434 template<typename ModifyOp>
435 void modifyValue(Index offset, const ModifyOp& op)
436 {
437 mBuffer.loadValues();
438 if (!mBuffer.empty()) {
439 // in-place modify value
440 ValueType& val = const_cast<ValueType&>(mBuffer[offset]);
441 op(val);
442 mValueMask.setOn(offset);
443 }
444 }
445
446 /// @brief Apply a functor to the value of the voxel at the given coordinates
447 /// and mark the voxel as active.
448 template<typename ModifyOp>
449 void modifyValue(const Coord& xyz, const ModifyOp& op)
450 {
451 this->modifyValue(this->coordToOffset(xyz), op);
452 }
453
454 /// Apply a functor to the voxel at the given coordinates.
455 template<typename ModifyOp>
456 void modifyValueAndActiveState(const Coord& xyz, const ModifyOp& op)
457 {
458 mBuffer.loadValues();
459 if (!mBuffer.empty()) {
460 const Index offset = this->coordToOffset(xyz);
461 bool state = mValueMask.isOn(offset);
462 // in-place modify value
463 ValueType& val = const_cast<ValueType&>(mBuffer[offset]);
464 op(val, state);
465 mValueMask.set(offset, state);
466 }
467 }
468
469 /// Mark all voxels as active but don't change their values.
470 void setValuesOn() { mValueMask.setOn(); }
471 /// Mark all voxels as inactive but don't change their values.
472 void setValuesOff() { mValueMask.setOff(); }
473
474 /// Return @c true if the voxel at the given coordinates is active.
475 bool isValueOn(const Coord& xyz) const {return this->isValueOn(LeafNode::coordToOffset(xyz));}
476 /// Return @c true if the voxel at the given offset is active.
477 bool isValueOn(Index offset) const { return mValueMask.isOn(offset); }
478
479 /// Return @c false since leaf nodes never contain tiles.
480 static bool hasActiveTiles() { return false; }
481
482 /// Set all voxels that lie outside the given axis-aligned box to the background.
483 void clip(const CoordBBox&, const ValueType& background);
484
485 /// Set all voxels within an axis-aligned box to the specified value and active state.
486 void fill(const CoordBBox& bbox, const ValueType&, bool active = true);
487 /// Set all voxels within an axis-aligned box to the specified value and active state.
488 void denseFill(const CoordBBox& bbox, const ValueType& value, bool active = true)
489 {
490 this->fill(bbox, value, active);
491 }
492
493 /// Set all voxels to the specified value but don't change their active states.
494 void fill(const ValueType& value);
495 /// Set all voxels to the specified value and active state.
496 void fill(const ValueType& value, bool active);
497
498 /// @brief Copy into a dense grid the values of the voxels that lie within
499 /// a given bounding box.
500 ///
501 /// @param bbox inclusive bounding box of the voxels to be copied into the dense grid
502 /// @param dense dense grid with a stride in @e z of one (see tools::Dense
503 /// in tools/Dense.h for the required API)
504 ///
505 /// @note @a bbox is assumed to be identical to or contained in the coordinate domains
506 /// of both the dense grid and this node, i.e., no bounds checking is performed.
507 /// @note Consider using tools::CopyToDense in tools/Dense.h
508 /// instead of calling this method directly.
509 template<typename DenseT>
510 void copyToDense(const CoordBBox& bbox, DenseT& dense) const;
511
512 /// @brief Copy from a dense grid into this node the values of the voxels
513 /// that lie within a given bounding box.
514 /// @details Only values that are different (by more than the given tolerance)
515 /// from the background value will be active. Other values are inactive
516 /// and truncated to the background value.
517 ///
518 /// @param bbox inclusive bounding box of the voxels to be copied into this node
519 /// @param dense dense grid with a stride in @e z of one (see tools::Dense
520 /// in tools/Dense.h for the required API)
521 /// @param background background value of the tree that this node belongs to
522 /// @param tolerance tolerance within which a value equals the background value
523 ///
524 /// @note @a bbox is assumed to be identical to or contained in the coordinate domains
525 /// of both the dense grid and this node, i.e., no bounds checking is performed.
526 /// @note Consider using tools::CopyFromDense in tools/Dense.h
527 /// instead of calling this method directly.
528 template<typename DenseT>
529 void copyFromDense(const CoordBBox& bbox, const DenseT& dense,
530 const ValueType& background, const ValueType& tolerance);
531
532 /// @brief Return the value of the voxel at the given coordinates.
533 /// @note Used internally by ValueAccessor.
534 template<typename AccessorT>
535 const ValueType& getValueAndCache(const Coord& xyz, AccessorT&) const
536 {
537 return this->getValue(xyz);
538 }
539
540 /// @brief Return @c true if the voxel at the given coordinates is active.
541 /// @note Used internally by ValueAccessor.
542 template<typename AccessorT>
543 bool isValueOnAndCache(const Coord& xyz, AccessorT&) const { return this->isValueOn(xyz); }
544
545 /// @brief Change the value of the voxel at the given coordinates and mark it as active.
546 /// @note Used internally by ValueAccessor.
547 template<typename AccessorT>
548 void setValueAndCache(const Coord& xyz, const ValueType& val, AccessorT&)
549 {
550 this->setValueOn(xyz, val);
551 }
552
553 /// @brief Change the value of the voxel at the given coordinates
554 /// but preserve its state.
555 /// @note Used internally by ValueAccessor.
556 template<typename AccessorT>
557 void setValueOnlyAndCache(const Coord& xyz, const ValueType& val, AccessorT&)
558 {
559 this->setValueOnly(xyz, val);
560 }
561
562 /// @brief Apply a functor to the value of the voxel at the given coordinates
563 /// and mark the voxel as active.
564 /// @note Used internally by ValueAccessor.
565 template<typename ModifyOp, typename AccessorT>
566 void modifyValueAndCache(const Coord& xyz, const ModifyOp& op, AccessorT&)
567 {
568 this->modifyValue(xyz, op);
569 }
570
571 /// Apply a functor to the voxel at the given coordinates.
572 /// @note Used internally by ValueAccessor.
573 template<typename ModifyOp, typename AccessorT>
574 void modifyValueAndActiveStateAndCache(const Coord& xyz, const ModifyOp& op, AccessorT&)
575 {
576 this->modifyValueAndActiveState(xyz, op);
577 }
578
579 /// @brief Change the value of the voxel at the given coordinates and mark it as inactive.
580 /// @note Used internally by ValueAccessor.
581 template<typename AccessorT>
582 void setValueOffAndCache(const Coord& xyz, const ValueType& value, AccessorT&)
583 {
584 this->setValueOff(xyz, value);
585 }
586
587 /// @brief Set the active state of the voxel at the given coordinates
588 /// without changing its value.
589 /// @note Used internally by ValueAccessor.
590 template<typename AccessorT>
591 void setActiveStateAndCache(const Coord& xyz, bool on, AccessorT&)
592 {
593 this->setActiveState(xyz, on);
594 }
595
596 /// @brief Return @c true if the voxel at the given coordinates is active
597 /// and return the voxel value in @a val.
598 /// @note Used internally by ValueAccessor.
599 template<typename AccessorT>
600 bool probeValueAndCache(const Coord& xyz, ValueType& val, AccessorT&) const
601 {
602 return this->probeValue(xyz, val);
603 }
604
605 /// @brief Return the value of the voxel at the given coordinates and return
606 /// its active state and level (i.e., 0) in @a state and @a level.
607 /// @note Used internally by ValueAccessor.
608 template<typename AccessorT>
609 const ValueType& getValue(const Coord& xyz, bool& state, int& level, AccessorT&) const
610 {
611 const Index offset = this->coordToOffset(xyz);
612 state = mValueMask.isOn(offset);
613 level = LEVEL;
614 return mBuffer[offset];
615 }
616
617 /// @brief Return the LEVEL (=0) at which leaf node values reside.
618 /// @note Used internally by ValueAccessor (note last argument is a dummy).
619 template<typename AccessorT>
620 static Index getValueLevelAndCache(const Coord&, AccessorT&) { return LEVEL; }
621
622 /// @brief Return a const reference to the first value in the buffer.
623 /// @note Though it is potentially risky you can convert this
624 /// to a non-const pointer by means of const_case<ValueType*>&.
625 const ValueType& getFirstValue() const { return mBuffer[0]; }
626 /// Return a const reference to the last value in the buffer.
627 const ValueType& getLastValue() const { return mBuffer[SIZE - 1]; }
628
629 /// @brief Replace inactive occurrences of @a oldBackground with @a newBackground,
630 /// and inactive occurrences of @a -oldBackground with @a -newBackground.
631 void resetBackground(const ValueType& oldBackground, const ValueType& newBackground);
632
633 void negate();
634
635 /// @brief No-op
636 /// @details This function exists only to enable template instantiation.
637 void voxelizeActiveTiles(bool = true) {}
638
639 template<MergePolicy Policy> void merge(const LeafNode&);
640 template<MergePolicy Policy> void merge(const ValueType& tileValue, bool tileActive);
641 template<MergePolicy Policy>
642 void merge(const LeafNode& other, const ValueType& /*bg*/, const ValueType& /*otherBG*/);
643
644 /// @brief Union this node's set of active values with the active values
645 /// of the other node, whose @c ValueType may be different. So a
646 /// resulting voxel will be active if either of the original voxels
647 /// were active.
648 ///
649 /// @note This operation modifies only active states, not values.
650 template<typename OtherType>
651 void topologyUnion(const LeafNode<OtherType, Log2Dim>& other, const bool preserveTiles = false);
652
653 /// @brief Intersect this node's set of active values with the active values
654 /// of the other node, whose @c ValueType may be different. So a
655 /// resulting voxel will be active only if both of the original voxels
656 /// were active.
657 ///
658 /// @details The last dummy argument is required to match the signature
659 /// for InternalNode::topologyIntersection.
660 ///
661 /// @note This operation modifies only active states, not
662 /// values. Also note that this operation can result in all voxels
663 /// being inactive so consider subsequently calling prune.
664 template<typename OtherType>
665 void topologyIntersection(const LeafNode<OtherType, Log2Dim>& other, const ValueType&);
666
667 /// @brief Difference this node's set of active values with the active values
668 /// of the other node, whose @c ValueType may be different. So a
669 /// resulting voxel will be active only if the original voxel is
670 /// active in this LeafNode and inactive in the other LeafNode.
671 ///
672 /// @details The last dummy argument is required to match the signature
673 /// for InternalNode::topologyDifference.
674 ///
675 /// @note This operation modifies only active states, not values.
676 /// Also, because it can deactivate all of this node's voxels,
677 /// consider subsequently calling prune.
678 template<typename OtherType>
679 void topologyDifference(const LeafNode<OtherType, Log2Dim>& other, const ValueType&);
680
681 template<typename CombineOp>
682 void combine(const LeafNode& other, CombineOp& op);
683 template<typename CombineOp>
684 void combine(const ValueType& value, bool valueIsActive, CombineOp& op);
685
686 template<typename CombineOp, typename OtherType /*= ValueType*/>
687 void combine2(const LeafNode& other, const OtherType&, bool valueIsActive, CombineOp&);
688 template<typename CombineOp, typename OtherNodeT /*= LeafNode*/>
689 void combine2(const ValueType&, const OtherNodeT& other, bool valueIsActive, CombineOp&);
690 template<typename CombineOp, typename OtherNodeT /*= LeafNode*/>
691 void combine2(const LeafNode& b0, const OtherNodeT& b1, CombineOp&);
692
693 //@{
694 /// This function exists only to enable template instantiation.
695 void prune(const ValueType& /*tolerance*/ = zeroVal<ValueType>()) {}
696 void addLeaf(LeafNode*) {}
697 template<typename AccessorT>
698 void addLeafAndCache(LeafNode*, AccessorT&) {}
699 template<typename NodeT>
700 NodeT* stealNode(const Coord&, const ValueType&, bool) { return nullptr; }
701 template<typename NodeT>
702 NodeT* probeNode(const Coord&) { return nullptr; }
703 template<typename NodeT>
704 const NodeT* probeConstNode(const Coord&) const { return nullptr; }
705 template<typename ArrayT> void getNodes(ArrayT&) const {}
706 template<typename ArrayT> void stealNodes(ArrayT&, const ValueType&, bool) {}
707 //@}
708
709 void addTile(Index level, const Coord&, const ValueType&, bool);
710 void addTile(Index offset, const ValueType&, bool);
711 template<typename AccessorT>
712 void addTileAndCache(Index, const Coord&, const ValueType&, bool, AccessorT&);
713
714 //@{
715 /// @brief Return a pointer to this node.
716 LeafNode* touchLeaf(const Coord&) { return this; }
717 template<typename AccessorT>
718 LeafNode* touchLeafAndCache(const Coord&, AccessorT&) { return this; }
719 template<typename NodeT, typename AccessorT>
720 NodeT* probeNodeAndCache(const Coord&, AccessorT&)
721 {
722 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
723 if (!(std::is_same<NodeT, LeafNode>::value)) return nullptr;
724 return reinterpret_cast<NodeT*>(this);
725 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
726 }
727 LeafNode* probeLeaf(const Coord&) { return this; }
728 template<typename AccessorT>
729 LeafNode* probeLeafAndCache(const Coord&, AccessorT&) { return this; }
730 //@}
731 //@{
732 /// @brief Return a @const pointer to this node.
733 const LeafNode* probeConstLeaf(const Coord&) const { return this; }
734 template<typename AccessorT>
735 const LeafNode* probeConstLeafAndCache(const Coord&, AccessorT&) const { return this; }
736 template<typename AccessorT>
737 const LeafNode* probeLeafAndCache(const Coord&, AccessorT&) const { return this; }
738 const LeafNode* probeLeaf(const Coord&) const { return this; }
739 template<typename NodeT, typename AccessorT>
740 const NodeT* probeConstNodeAndCache(const Coord&, AccessorT&) const
741 {
742 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
743 if (!(std::is_same<NodeT, LeafNode>::value)) return nullptr;
744 return reinterpret_cast<const NodeT*>(this);
745 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
746 }
747 //@}
748
749 /// Return @c true if all of this node's values have the same active state
750 /// and are in the range this->getFirstValue() +/- @a tolerance.
751 ///
752 ///
753 /// @param firstValue Is updated with the first value of this leaf node.
754 /// @param state Is updated with the state of all values IF method
755 /// returns @c true. Else the value is undefined!
756 /// @param tolerance The tolerance used to determine if values are
757 /// approximately equal to the for value.
758 bool isConstant(ValueType& firstValue, bool& state,
759 const ValueType& tolerance = zeroVal<ValueType>()) const;
760
761 /// Return @c true if all of this node's values have the same active state
762 /// and the range (@a maxValue - @a minValue) < @a tolerance.
763 ///
764 /// @param minValue Is updated with the minimum of all values IF method
765 /// returns @c true. Else the value is undefined!
766 /// @param maxValue Is updated with the maximum of all values IF method
767 /// returns @c true. Else the value is undefined!
768 /// @param state Is updated with the state of all values IF method
769 /// returns @c true. Else the value is undefined!
770 /// @param tolerance The tolerance used to determine if values are
771 /// approximately constant.
772 bool isConstant(ValueType& minValue, ValueType& maxValue,
773 bool& state, const ValueType& tolerance = zeroVal<ValueType>()) const;
774
775
776 /// @brief Computes the median value of all the active AND inactive voxels in this node.
777 /// @return The median value of all values in this node.
778 ///
779 /// @param tmp Optional temporary storage that can hold at least NUM_VALUES values
780 /// Use of this temporary storage can improve performance
781 /// when this method is called multiple times.
782 ///
783 /// @note If tmp = this->buffer().data() then the median
784 /// value is computed very efficiently (in place) but
785 /// the voxel values in this node are re-shuffled!
786 ///
787 /// @warning If tmp != nullptr then it is the responsibility of
788 /// the client code that it points to enough memory to
789 /// hold NUM_VALUES elements of type ValueType.
790 ValueType medianAll(ValueType *tmp = nullptr) const;
791
792 /// @brief Computes the median value of all the active voxels in this node.
793 /// @return The number of active voxels.
794 ///
795 /// @param value If the return value is non zero @a value is updated
796 /// with the median value.
797 ///
798 /// @param tmp Optional temporary storage that can hold at least
799 /// as many values as there are active voxels in this node.
800 /// Use of this temporary storage can improve performance
801 /// when this method is called multiple times.
802 ///
803 /// @warning If tmp != nullptr then it is the responsibility of
804 /// the client code that it points to enough memory to
805 /// hold the number of active voxels of type ValueType.
806 Index medianOn(ValueType &value, ValueType *tmp = nullptr) const;
807
808 /// @brief Computes the median value of all the inactive voxels in this node.
809 /// @return The number of inactive voxels.
810 ///
811 /// @param value If the return value is non zero @a value is updated
812 /// with the median value.
813 ///
814 /// @param tmp Optional temporary storage that can hold at least
815 /// as many values as there are inactive voxels in this node.
816 /// Use of this temporary storage can improve performance
817 /// when this method is called multiple times.
818 ///
819 /// @warning If tmp != nullptr then it is the responsibility of
820 /// the client code that it points to enough memory to
821 /// hold the number of inactive voxels of type ValueType.
822 Index medianOff(ValueType &value, ValueType *tmp = nullptr) const;
823
824 /// Return @c true if all of this node's values are inactive.
825 bool isInactive() const { return mValueMask.isOff(); }
826
827 protected:
828 friend class ::TestLeaf;
829 template<typename> friend class ::TestLeafIO;
830
831 // During topology-only construction, access is needed
832 // to protected/private members of other template instances.
833 template<typename, Index> friend class LeafNode;
834
835 friend struct ValueIter<MaskOnIterator, LeafNode, ValueType, ValueOn>;
836 friend struct ValueIter<MaskOffIterator, LeafNode, ValueType, ValueOff>;
837 friend struct ValueIter<MaskDenseIterator, LeafNode, ValueType, ValueAll>;
838 friend struct ValueIter<MaskOnIterator, const LeafNode, ValueType, ValueOn>;
839 friend struct ValueIter<MaskOffIterator, const LeafNode, ValueType, ValueOff>;
840 friend struct ValueIter<MaskDenseIterator, const LeafNode, ValueType, ValueAll>;
841
842 // Allow iterators to call mask accessor methods (see below).
843 /// @todo Make mask accessors public?
844 friend class IteratorBase<MaskOnIterator, LeafNode>;
845 friend class IteratorBase<MaskOffIterator, LeafNode>;
846 friend class IteratorBase<MaskDenseIterator, LeafNode>;
847
848 // Mask accessors
849 public:
850 bool isValueMaskOn(Index n) const { return mValueMask.isOn(n); }
851 bool isValueMaskOn() const { return mValueMask.isOn(); }
852 bool isValueMaskOff(Index n) const { return mValueMask.isOff(n); }
853 bool isValueMaskOff() const { return mValueMask.isOff(); }
854 const NodeMaskType& getValueMask() const { return mValueMask; }
855 NodeMaskType& getValueMask() { return mValueMask; }
856 const NodeMaskType& valueMask() const { return mValueMask; }
857 void setValueMask(const NodeMaskType& mask) { mValueMask = mask; }
858 bool isChildMaskOn(Index) const { return false; } // leaf nodes have no children
859 bool isChildMaskOff(Index) const { return true; }
860 bool isChildMaskOff() const { return true; }
861 protected:
862 void setValueMask(Index n, bool on) { mValueMask.set(n, on); }
863 void setValueMaskOn(Index n) { mValueMask.setOn(n); }
864 void setValueMaskOff(Index n) { mValueMask.setOff(n); }
865
866 inline void skipCompressedValues(bool seekable, std::istream&, bool fromHalf);
867
868 /// Compute the origin of the leaf node that contains the voxel with the given coordinates.
869 static void evalNodeOrigin(Coord& xyz) { xyz &= ~(DIM - 1); }
870
871 private:
872 /// Buffer containing the actual data values
873 Buffer mBuffer;
874 /// Bitmask that determines which voxels are active
875 NodeMaskType mValueMask;
876 /// Global grid index coordinates (x,y,z) of the local origin of this node
877 Coord mOrigin;
878 /// Transient data (not serialized)
879 Index32 mTransientData = 0;
880}; // end of LeafNode class
881
882
883////////////////////////////////////////
884
885
886//@{
887/// Helper metafunction used to implement LeafNode::SameConfiguration
888/// (which, as an inner class, can't be independently specialized)
889 template<Index Dim1, typename NodeT2>
890 struct SameLeafConfig { static const bool value = false; };
891
892 template<Index Dim1, typename T2>
893 struct SameLeafConfig<Dim1, LeafNode<T2, Dim1> > { static const bool value = true; };
894//@}
895
896
897////////////////////////////////////////
898
899
900 template<typename T, Index Log2Dim>
901 inline
902 LeafNode<T, Log2Dim>::LeafNode():
903 mValueMask(),//default is off!
904 mOrigin(0, 0, 0)
905{
906}
907
908
909 template<typename T, Index Log2Dim>
910 inline
911 LeafNode<T, Log2Dim>::LeafNode(const Coord& xyz, const ValueType& val, bool active):
912 mBuffer(val),
913 mValueMask(active),
914 mOrigin(xyz & (~(DIM - 1)))
915{
916}
917
918
919 template<typename T, Index Log2Dim>
920 inline
921 LeafNode<T, Log2Dim>::LeafNode(PartialCreate, const Coord& xyz, const ValueType& val, bool active):
922 mBuffer(PartialCreate(), val),
923 mValueMask(active),
924 mOrigin(xyz & (~(DIM - 1)))
925{
926}
927
928
929 template<typename T, Index Log2Dim>
930 inline
931 LeafNode<T, Log2Dim>::LeafNode(const LeafNode& other)
932 : mBuffer(other.mBuffer)
933 , mValueMask(other.valueMask())
934 , mOrigin(other.mOrigin)
935 , mTransientData(other.mTransientData)
936{
937}
938
939
940// Copy-construct from a leaf node with the same configuration but a different ValueType.
941 template<typename T, Index Log2Dim>
942 template<typename OtherValueType>
943 inline
944 LeafNode<T, Log2Dim>::LeafNode(const LeafNode<OtherValueType, Log2Dim>& other)
945 : mValueMask(other.valueMask())
946 , mOrigin(other.mOrigin)
947 , mTransientData(other.mTransientData)
948{
949 struct Local {
950 /// @todo Consider using a value conversion functor passed as an argument instead.
951 static inline ValueType convertValue(const OtherValueType& val) { return ValueType(val); }
952 };
953
954 for (Index i = 0; i < SIZE; ++i) {
955 mBuffer[i] = Local::convertValue(other.mBuffer[i]);
956 }
957}
958
959
960 template<typename T, Index Log2Dim>
961 template<typename OtherValueType>
962 inline
963 LeafNode<T, Log2Dim>::LeafNode(const LeafNode<OtherValueType, Log2Dim>& other,
964 const ValueType& background, TopologyCopy)
965 : mBuffer(background)
966 , mValueMask(other.valueMask())
967 , mOrigin(other.mOrigin)
968 , mTransientData(other.mTransientData)
969{
970}
971
972
973 template<typename T, Index Log2Dim>
974 template<typename OtherValueType>
975 inline
976 LeafNode<T, Log2Dim>::LeafNode(const LeafNode<OtherValueType, Log2Dim>& other,
977 const ValueType& offValue, const ValueType& onValue, TopologyCopy)
978 : mValueMask(other.valueMask())
979 , mOrigin(other.mOrigin)
980 , mTransientData(other.mTransientData)
981{
982 for (Index i = 0; i < SIZE; ++i) {
983 mBuffer[i] = (mValueMask.isOn(i) ? onValue : offValue);
984 }
985}
986
987
988 template<typename T, Index Log2Dim>
989 inline
990 LeafNode<T, Log2Dim>::~LeafNode()
991{
992}
993
994
995 template<typename T, Index Log2Dim>
996 inline std::string
997 LeafNode<T, Log2Dim>::str() const
998{
999 std::ostringstream ostr;
1000 ostr << "LeafNode @" << mOrigin << ": " << mBuffer;
1001 return ostr.str();
1002}
1003
1004
1005////////////////////////////////////////
1006
1007
1008 template<typename T, Index Log2Dim>
1009 inline Index
1010 LeafNode<T, Log2Dim>::coordToOffset(const Coord& xyz)
1011{
1012 assert ((xyz[0] & (DIM-1u)) < DIM && (xyz[1] & (DIM-1u)) < DIM && (xyz[2] & (DIM-1u)) < DIM);
1013 return ((xyz[0] & (DIM-1u)) << 2*Log2Dim)
1014 + ((xyz[1] & (DIM-1u)) << Log2Dim)
1015 + (xyz[2] & (DIM-1u));
1016}
1017
1018 template<typename T, Index Log2Dim>
1019 inline Coord
1020 LeafNode<T, Log2Dim>::offsetToLocalCoord(Index n)
1021{
1022 assert(n<(1<< 3*Log2Dim));
1023 Coord xyz;
1024 xyz.setX(n >> 2*Log2Dim);
1025 n &= ((1<<2*Log2Dim)-1);
1026 xyz.setY(n >> Log2Dim);
1027 xyz.setZ(n & ((1<<Log2Dim)-1));
1028 return xyz;
1029}
1030
1031
1032 template<typename T, Index Log2Dim>
1033 inline Coord
1034 LeafNode<T, Log2Dim>::offsetToGlobalCoord(Index n) const
1035{
1036 return (this->offsetToLocalCoord(n) + this->origin());
1037}
1038
1039
1040////////////////////////////////////////
1041
1042
1043 template<typename ValueT, Index Log2Dim>
1044 inline const ValueT&
1045 LeafNode<ValueT, Log2Dim>::getValue(const Coord& xyz) const
1046{
1047 return this->getValue(LeafNode::coordToOffset(xyz));
1048}
1049
1050 template<typename ValueT, Index Log2Dim>
1051 inline const ValueT&
1052 LeafNode<ValueT, Log2Dim>::getValue(Index offset) const
1053{
1054 assert(offset < SIZE);
1055 return mBuffer[offset];
1056}
1057
1058
1059 template<typename T, Index Log2Dim>
1060 inline bool
1061 LeafNode<T, Log2Dim>::probeValue(const Coord& xyz, ValueType& val) const
1062{
1063 return this->probeValue(LeafNode::coordToOffset(xyz), val);
1064}
1065
1066 template<typename T, Index Log2Dim>
1067 inline bool
1068 LeafNode<T, Log2Dim>::probeValue(Index offset, ValueType& val) const
1069{
1070 assert(offset < SIZE);
1071 val = mBuffer[offset];
1072 return mValueMask.isOn(offset);
1073}
1074
1075
1076 template<typename T, Index Log2Dim>
1077 inline void
1078 LeafNode<T, Log2Dim>::setValueOff(const Coord& xyz, const ValueType& val)
1079{
1080 this->setValueOff(LeafNode::coordToOffset(xyz), val);
1081}
1082
1083 template<typename T, Index Log2Dim>
1084 inline void
1085 LeafNode<T, Log2Dim>::setValueOff(Index offset, const ValueType& val)
1086{
1087 assert(offset < SIZE);
1088 mBuffer.setValue(offset, val);
1089 mValueMask.setOff(offset);
1090}
1091
1092
1093 template<typename T, Index Log2Dim>
1094 inline void
1095 LeafNode<T, Log2Dim>::setActiveState(const Coord& xyz, bool on)
1096{
1097 mValueMask.set(this->coordToOffset(xyz), on);
1098}
1099
1100
1101 template<typename T, Index Log2Dim>
1102 inline void
1103 LeafNode<T, Log2Dim>::setValueOnly(const Coord& xyz, const ValueType& val)
1104{
1105 this->setValueOnly(LeafNode::coordToOffset(xyz), val);
1106}
1107
1108 template<typename T, Index Log2Dim>
1109 inline void
1110 LeafNode<T, Log2Dim>::setValueOnly(Index offset, const ValueType& val)
1111{
1112 assert(offset<SIZE); mBuffer.setValue(offset, val);
1113}
1114
1115
1116////////////////////////////////////////
1117
1118
1119 template<typename T, Index Log2Dim>
1120 inline void
1121 LeafNode<T, Log2Dim>::clip(const CoordBBox& clipBBox, const T& background)
1122{
1123 CoordBBox nodeBBox = this->getNodeBoundingBox();
1124 if (!clipBBox.hasOverlap(nodeBBox)) {
1125 // This node lies completely outside the clipping region. Fill it with the background.
1126 this->fill(background, /*active=*/false);
1127 } else if (clipBBox.isInside(nodeBBox)) {
1128 // This node lies completely inside the clipping region. Leave it intact.
1129 return;
1130 }
1131
1132 // This node isn't completely contained inside the clipping region.
1133 // Set any voxels that lie outside the region to the background value.
1134
1135 // Construct a boolean mask that is on inside the clipping region and off outside it.
1136 NodeMaskType mask;
1137 nodeBBox.intersect(clipBBox);
1138 Coord xyz;
1139 int &x = xyz.x(), &y = xyz.y(), &z = xyz.z();
1140 for (x = nodeBBox.min().x(); x <= nodeBBox.max().x(); ++x) {
1141 for (y = nodeBBox.min().y(); y <= nodeBBox.max().y(); ++y) {
1142 for (z = nodeBBox.min().z(); z <= nodeBBox.max().z(); ++z) {
1143 mask.setOn(static_cast<Index32>(this->coordToOffset(xyz)));
1144 }
1145 }
1146 }
1147
1148 // Set voxels that lie in the inactive region of the mask (i.e., outside
1149 // the clipping region) to the background value.
1150 for (MaskOffIterator maskIter = mask.beginOff(); maskIter; ++maskIter) {
1151 this->setValueOff(maskIter.pos(), background);
1152 }
1153}
1154
1155
1156////////////////////////////////////////
1157
1158
1159 template<typename T, Index Log2Dim>
1160 inline void
1161 LeafNode<T, Log2Dim>::fill(const CoordBBox& bbox, const ValueType& value, bool active)
1162{
1163 if (!this->allocate()) return;
1164
1165 auto clippedBBox = this->getNodeBoundingBox();
1166 clippedBBox.intersect(bbox);
1167 if (!clippedBBox) return;
1168
1169 for (Int32 x = clippedBBox.min().x(); x <= clippedBBox.max().x(); ++x) {
1170 const Index offsetX = (x & (DIM-1u)) << 2*Log2Dim;
1171 for (Int32 y = clippedBBox.min().y(); y <= clippedBBox.max().y(); ++y) {
1172 const Index offsetXY = offsetX + ((y & (DIM-1u)) << Log2Dim);
1173 for (Int32 z = clippedBBox.min().z(); z <= clippedBBox.max().z(); ++z) {
1174 const Index offset = offsetXY + (z & (DIM-1u));
1175 mBuffer[offset] = value;
1176 mValueMask.set(offset, active);
1177 }
1178 }
1179 }
1180}
1181
1182 template<typename T, Index Log2Dim>
1183 inline void
1184 LeafNode<T, Log2Dim>::fill(const ValueType& value)
1185{
1186 mBuffer.fill(value);
1187}
1188
1189 template<typename T, Index Log2Dim>
1190 inline void
1191 LeafNode<T, Log2Dim>::fill(const ValueType& value, bool active)
1192{
1193 mBuffer.fill(value);
1194 mValueMask.set(active);
1195}
1196
1197
1198////////////////////////////////////////
1199
1200
1201 template<typename T, Index Log2Dim>
1202 template<typename DenseT>
1203 inline void
1204 LeafNode<T, Log2Dim>::copyToDense(const CoordBBox& bbox, DenseT& dense) const
1205{
1206 mBuffer.loadValues();
1207
1208 using DenseValueType = typename DenseT::ValueType;
1209
1210 const size_t xStride = dense.xStride(), yStride = dense.yStride(), zStride = dense.zStride();
1211 const Coord& min = dense.bbox().min();
1212 DenseValueType* t0 = dense.data() + zStride * (bbox.min()[2] - min[2]); // target array
1213 const T* s0 = &mBuffer[bbox.min()[2] & (DIM-1u)]; // source array
1214 for (Int32 x = bbox.min()[0], ex = bbox.max()[0] + 1; x < ex; ++x) {
1215 DenseValueType* t1 = t0 + xStride * (x - min[0]);
1216 const T* s1 = s0 + ((x & (DIM-1u)) << 2*Log2Dim);
1217 for (Int32 y = bbox.min()[1], ey = bbox.max()[1] + 1; y < ey; ++y) {
1218 DenseValueType* t2 = t1 + yStride * (y - min[1]);
1219 const T* s2 = s1 + ((y & (DIM-1u)) << Log2Dim);
1220 for (Int32 z = bbox.min()[2], ez = bbox.max()[2] + 1; z < ez; ++z, t2 += zStride) {
1221 *t2 = DenseValueType(*s2++);
1222 }
1223 }
1224 }
1225}
1226
1227
1228 template<typename T, Index Log2Dim>
1229 template<typename DenseT>
1230 inline void
1231 LeafNode<T, Log2Dim>::copyFromDense(const CoordBBox& bbox, const DenseT& dense,
1232 const ValueType& background, const ValueType& tolerance)
1233{
1234 if (!this->allocate()) return;
1235
1236 using DenseValueType = typename DenseT::ValueType;
1237
1238 const size_t xStride = dense.xStride(), yStride = dense.yStride(), zStride = dense.zStride();
1239 const Coord& min = dense.bbox().min();
1240
1241 const DenseValueType* s0 = dense.data() + zStride * (bbox.min()[2] - min[2]); // source
1242 const Int32 n0 = bbox.min()[2] & (DIM-1u);
1243 for (Int32 x = bbox.min()[0], ex = bbox.max()[0]+1; x < ex; ++x) {
1244 const DenseValueType* s1 = s0 + xStride * (x - min[0]);
1245 const Int32 n1 = n0 + ((x & (DIM-1u)) << 2*LOG2DIM);
1246 for (Int32 y = bbox.min()[1], ey = bbox.max()[1]+1; y < ey; ++y) {
1247 const DenseValueType* s2 = s1 + yStride * (y - min[1]);
1248 Int32 n2 = n1 + ((y & (DIM-1u)) << LOG2DIM);
1249 for (Int32 z = bbox.min()[2], ez = bbox.max()[2]+1; z < ez; ++z, ++n2, s2 += zStride) {
1250 if (math::isApproxEqual(background, ValueType(*s2), tolerance)) {
1251 mValueMask.setOff(n2);
1252 mBuffer[n2] = background;
1253 } else {
1254 mValueMask.setOn(n2);
1255 mBuffer[n2] = ValueType(*s2);
1256 }
1257 }
1258 }
1259 }
1260}
1261
1262
1263////////////////////////////////////////
1264
1265
1266 template<typename T, Index Log2Dim>
1267 inline void
1268 LeafNode<T, Log2Dim>::readTopology(std::istream& is, bool /*fromHalf*/)
1269{
1270 mValueMask.load(is);
1271}
1272
1273
1274 template<typename T, Index Log2Dim>
1275 inline void
1276 LeafNode<T, Log2Dim>::writeTopology(std::ostream& os, bool /*toHalf*/) const
1277{
1278 mValueMask.save(os);
1279}
1280
1281
1282////////////////////////////////////////
1283
1284
1285
1286 template<typename T, Index Log2Dim>
1287 inline void
1288 LeafNode<T,Log2Dim>::skipCompressedValues(bool seekable, std::istream& is, bool fromHalf)
1289{
1290 if (seekable) {
1291 // Seek over voxel values.
1292 io::readCompressedValues<ValueType, NodeMaskType>(
1293 is, nullptr, SIZE, mValueMask, fromHalf);
1294 } else {
1295 // Read and discard voxel values.
1296 Buffer temp;
1297 io::readCompressedValues(is, temp.mData, SIZE, mValueMask, fromHalf);
1298 }
1299}
1300
1301
1302 template<typename T, Index Log2Dim>
1303 inline void
1304 LeafNode<T,Log2Dim>::readBuffers(std::istream& is, bool fromHalf)
1305{
1306 this->readBuffers(is, CoordBBox::inf(), fromHalf);
1307}
1308
1309
1310 template<typename T, Index Log2Dim>
1311 inline void
1312 LeafNode<T,Log2Dim>::readBuffers(std::istream& is, const CoordBBox& clipBBox, bool fromHalf)
1313{
1314 SharedPtr<io::StreamMetadata> meta = io::getStreamMetadataPtr(is);
1315 const bool seekable = meta && meta->seekable();
1316
1317#ifdef OPENVDB_USE_DELAYED_LOADING
1318 std::streamoff maskpos = is.tellg();
1319#endif
1320
1321 if (seekable) {
1322 // Seek over the value mask.
1323 mValueMask.seek(is);
1324 } else {
1325 // Read in the value mask.
1326 mValueMask.load(is);
1327 }
1328
1329 int8_t numBuffers = 1;
1330 if (io::getFormatVersion(is) < OPENVDB_FILE_VERSION_NODE_MASK_COMPRESSION) {
1331 // Read in the origin.
1332 is.read(reinterpret_cast<char*>(&mOrigin), sizeof(Coord::ValueType) * 3);
1333
1334 // Read in the number of buffers, which should now always be one.
1335 is.read(reinterpret_cast<char*>(&numBuffers), sizeof(int8_t));
1336 }
1337
1338 CoordBBox nodeBBox = this->getNodeBoundingBox();
1339 if (!clipBBox.hasOverlap(nodeBBox)) {
1340 // This node lies completely outside the clipping region.
1341 skipCompressedValues(seekable, is, fromHalf);
1342 mValueMask.setOff();
1343 mBuffer.setOutOfCore(false);
1344 } else {
1345#ifdef OPENVDB_USE_DELAYED_LOADING
1346 // If this node lies completely inside the clipping region and it is being read
1347 // from a memory-mapped file, delay loading of its buffer until the buffer
1348 // is actually accessed. (If this node requires clipping, its buffer
1349 // must be accessed and therefore must be loaded.)
1350 io::MappedFile::Ptr mappedFile = io::getMappedFilePtr(is);
1351 const bool delayLoad = ((mappedFile.get() != nullptr) && clipBBox.isInside(nodeBBox));
1352
1353 if (delayLoad) {
1354 mBuffer.setOutOfCore(true);
1355 mBuffer.mFileInfo = new typename Buffer::FileInfo;
1356 mBuffer.mFileInfo->meta = meta;
1357 mBuffer.mFileInfo->bufpos = is.tellg();
1358 mBuffer.mFileInfo->mapping = mappedFile;
1359 // Save the offset to the value mask, because the in-memory copy
1360 // might change before the value buffer gets read.
1361 mBuffer.mFileInfo->maskpos = maskpos;
1362 // Skip over voxel values.
1363 skipCompressedValues(seekable, is, fromHalf);
1364 } else {
1365#endif
1366 mBuffer.allocate();
1367 io::readCompressedValues(is, mBuffer.mData, SIZE, mValueMask, fromHalf);
1368 mBuffer.setOutOfCore(false);
1369
1370 // Get this tree's background value.
1371 T background = zeroVal<T>();
1372 if (const void* bgPtr = io::getGridBackgroundValuePtr(is)) {
1373 background = *static_cast<const T*>(bgPtr);
1374 }
1375 this->clip(clipBBox, background);
1376#ifdef OPENVDB_USE_DELAYED_LOADING
1377 }
1378#endif
1379 }
1380
1381 if (numBuffers > 1) {
1382 // Read in and discard auxiliary buffers that were created with earlier
1383 // versions of the library. (Auxiliary buffers are not mask compressed.)
1384 const bool zipped = io::getDataCompression(is) & io::COMPRESS_ZIP;
1385 Buffer temp;
1386 for (int i = 1; i < numBuffers; ++i) {
1387 if (fromHalf) {
1388 io::HalfReader<io::RealToHalf<T>::isReal, T>::read(is, temp.mData, SIZE, zipped);
1389 } else {
1390 io::readData<T>(is, temp.mData, SIZE, zipped);
1391 }
1392 }
1393 }
1394
1395 // increment the leaf number
1396 if (meta) meta->setLeaf(meta->leaf() + 1);
1397}
1398
1399
1400 template<typename T, Index Log2Dim>
1401 inline void
1402 LeafNode<T, Log2Dim>::writeBuffers(std::ostream& os, bool toHalf) const
1403{
1404 // Write out the value mask.
1405 mValueMask.save(os);
1406
1407 mBuffer.loadValues();
1408
1409 io::writeCompressedValues(os, mBuffer.mData, SIZE,
1410 mValueMask, /*childMask=*/NodeMaskType(), toHalf);
1411}
1412
1413
1414////////////////////////////////////////
1415
1416
1417 template<typename T, Index Log2Dim>
1418 inline bool
1419 LeafNode<T, Log2Dim>::operator==(const LeafNode& other) const
1420{
1421 return mOrigin == other.mOrigin &&
1422 mValueMask == other.valueMask() &&
1423 mBuffer == other.mBuffer;
1424}
1425
1426
1427 template<typename T, Index Log2Dim>
1428 inline Index64
1429 LeafNode<T, Log2Dim>::memUsage() const
1430{
1431 // Use sizeof(*this) to capture alignment-related padding
1432 // (but note that sizeof(*this) includes sizeof(mBuffer)).
1433 return sizeof(*this) + mBuffer.memUsage() - sizeof(mBuffer);
1434}
1435
1436
1437 template<typename T, Index Log2Dim>
1438 inline Index64
1439 LeafNode<T, Log2Dim>::memUsageIfLoaded() const
1440{
1441 // Use sizeof(*this) to capture alignment-related padding
1442 // (but note that sizeof(*this) includes sizeof(mBuffer)).
1443 return sizeof(*this) + mBuffer.memUsageIfLoaded() - sizeof(mBuffer);
1444}
1445
1446
1447 template<typename T, Index Log2Dim>
1448 inline void
1449 LeafNode<T, Log2Dim>::evalActiveBoundingBox(CoordBBox& bbox, bool visitVoxels) const
1450{
1451 CoordBBox this_bbox = this->getNodeBoundingBox();
1452 if (bbox.isInside(this_bbox)) return;//this LeafNode is already enclosed in the bbox
1453 if (ValueOnCIter iter = this->cbeginValueOn()) {//any active values?
1454 if (visitVoxels) {//use voxel granularity?
1455 this_bbox.reset();
1456 for(; iter; ++iter) this_bbox.expand(this->offsetToLocalCoord(iter.pos()));
1457 this_bbox.translate(this->origin());
1458 }
1459 bbox.expand(this_bbox);
1460 }
1461}
1462
1463
1464 template<typename T, Index Log2Dim>
1465 template<typename OtherType, Index OtherLog2Dim>
1466 inline bool
1467 LeafNode<T, Log2Dim>::hasSameTopology(const LeafNode<OtherType, OtherLog2Dim>* other) const
1468{
1469 assert(other);
1470 return (Log2Dim == OtherLog2Dim && mValueMask == other->getValueMask());
1471}
1472
1473 template<typename T, Index Log2Dim>
1474 inline bool
1475 LeafNode<T, Log2Dim>::isConstant(ValueType& firstValue,
1476 bool& state,
1477 const ValueType& tolerance) const
1478{
1479 if (!mValueMask.isConstant(state)) return false;// early termination
1480 firstValue = mBuffer[0];
1481 for (Index i = 1; i < SIZE; ++i) {
1482 if ( !math::isApproxEqual(mBuffer[i], firstValue, tolerance) ) return false;// early termination
1483 }
1484 return true;
1485}
1486
1487 template<typename T, Index Log2Dim>
1488 inline bool
1489 LeafNode<T, Log2Dim>::isConstant(ValueType& minValue,
1490 ValueType& maxValue,
1491 bool& state,
1492 const ValueType& tolerance) const
1493{
1494 if (!mValueMask.isConstant(state)) return false;// early termination
1495 minValue = maxValue = mBuffer[0];
1496 for (Index i = 1; i < SIZE; ++i) {
1497 const T& v = mBuffer[i];
1498 if (v < minValue) {
1499 if ((maxValue - v) > tolerance) return false;// early termination
1500 minValue = v;
1501 } else if (v > maxValue) {
1502 if ((v - minValue) > tolerance) return false;// early termination
1503 maxValue = v;
1504 }
1505 }
1506 return true;
1507}
1508
1509 template<typename T, Index Log2Dim>
1510 inline T
1511 LeafNode<T, Log2Dim>::medianAll(T *tmp) const
1512{
1513 std::unique_ptr<T[]> data(nullptr);
1514 if (tmp == nullptr) {//allocate temporary storage
1515 data.reset(new T[NUM_VALUES]);
1516 tmp = data.get();
1517 }
1518 if (tmp != mBuffer.data()) {
1519 const T* src = mBuffer.data();
1520 for (T* dst = tmp; dst-tmp < NUM_VALUES;) *dst++ = *src++;
1521 }
1522 static const size_t midpoint = (NUM_VALUES - 1) >> 1;
1523 std::nth_element(tmp, tmp + midpoint, tmp + NUM_VALUES);
1524 return tmp[midpoint];
1525}
1526
1527 template<typename T, Index Log2Dim>
1528 inline Index
1529 LeafNode<T, Log2Dim>::medianOn(T &value, T *tmp) const
1530{
1531 const Index count = mValueMask.countOn();
1532 if (count == NUM_VALUES) {//special case: all voxels are active
1533 value = this->medianAll(tmp);
1534 return NUM_VALUES;
1535 } else if (count == 0) {
1536 return 0;
1537 }
1538 std::unique_ptr<T[]> data(nullptr);
1539 if (tmp == nullptr) {//allocate temporary storage
1540 data.reset(new T[count]);// 0 < count < NUM_VALUES
1541 tmp = data.get();
1542 }
1543 for (auto iter=this->cbeginValueOn(); iter; ++iter) *tmp++ = *iter;
1544 T *begin = tmp - count;
1545 const size_t midpoint = (count - 1) >> 1;
1546 std::nth_element(begin, begin + midpoint, tmp);
1547 value = begin[midpoint];
1548 return count;
1549}
1550
1551 template<typename T, Index Log2Dim>
1552 inline Index
1553 LeafNode<T, Log2Dim>::medianOff(T &value, T *tmp) const
1554{
1555 const Index count = mValueMask.countOff();
1556 if (count == NUM_VALUES) {//special case: all voxels are inactive
1557 value = this->medianAll(tmp);
1558 return NUM_VALUES;
1559 } else if (count == 0) {
1560 return 0;
1561 }
1562 std::unique_ptr<T[]> data(nullptr);
1563 if (tmp == nullptr) {//allocate temporary storage
1564 data.reset(new T[count]);// 0 < count < NUM_VALUES
1565 tmp = data.get();
1566 }
1567 for (auto iter=this->cbeginValueOff(); iter; ++iter) *tmp++ = *iter;
1568 T *begin = tmp - count;
1569 const size_t midpoint = (count - 1) >> 1;
1570 std::nth_element(begin, begin + midpoint, tmp);
1571 value = begin[midpoint];
1572 return count;
1573}
1574
1575////////////////////////////////////////
1576
1577
1578 template<typename T, Index Log2Dim>
1579 inline void
1580 LeafNode<T, Log2Dim>::addTile(Index /*level*/, const Coord& xyz, const ValueType& val, bool active)
1581{
1582 this->addTile(this->coordToOffset(xyz), val, active);
1583}
1584
1585 template<typename T, Index Log2Dim>
1586 inline void
1587 LeafNode<T, Log2Dim>::addTile(Index offset, const ValueType& val, bool active)
1588{
1589 assert(offset < SIZE);
1590 setValueOnly(offset, val);
1591 setActiveState(offset, active);
1592}
1593
1594 template<typename T, Index Log2Dim>
1595 template<typename AccessorT>
1596 inline void
1597 LeafNode<T, Log2Dim>::addTileAndCache(Index level, const Coord& xyz,
1598 const ValueType& val, bool active, AccessorT&)
1599{
1600 this->addTile(level, xyz, val, active);
1601}
1602
1603
1604////////////////////////////////////////
1605
1606
1607 template<typename T, Index Log2Dim>
1608 inline void
1609 LeafNode<T, Log2Dim>::resetBackground(const ValueType& oldBackground,
1610 const ValueType& newBackground)
1611{
1612 if (!this->allocate()) return;
1613
1614 typename NodeMaskType::OffIterator iter;
1615 // For all inactive values...
1616 for (iter = this->mValueMask.beginOff(); iter; ++iter) {
1617 ValueType &inactiveValue = mBuffer[iter.pos()];
1618 if (math::isApproxEqual(inactiveValue, oldBackground)) {
1619 inactiveValue = newBackground;
1620 } else if (math::isApproxEqual(inactiveValue, math::negative(oldBackground))) {
1621 inactiveValue = math::negative(newBackground);
1622 }
1623 }
1624}
1625
1626
1627 template<typename T, Index Log2Dim>
1628 template<MergePolicy Policy>
1629 inline void
1630 LeafNode<T, Log2Dim>::merge(const LeafNode& other)
1631{
1632 if (!this->allocate()) return;
1633
1634 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
1635 if (Policy == MERGE_NODES) return;
1636 typename NodeMaskType::OnIterator iter = other.valueMask().beginOn();
1637 for (; iter; ++iter) {
1638 const Index n = iter.pos();
1639 if (mValueMask.isOff(n)) {
1640 mBuffer[n] = other.mBuffer[n];
1641 mValueMask.setOn(n);
1642 }
1643 }
1644 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
1645}
1646
1647 template<typename T, Index Log2Dim>
1648 template<MergePolicy Policy>
1649 inline void
1650 LeafNode<T, Log2Dim>::merge(const LeafNode& other,
1651 const ValueType& /*bg*/, const ValueType& /*otherBG*/)
1652{
1653 this->template merge<Policy>(other);
1654}
1655
1656 template<typename T, Index Log2Dim>
1657 template<MergePolicy Policy>
1658 inline void
1659 LeafNode<T, Log2Dim>::merge(const ValueType& tileValue, bool tileActive)
1660{
1661 if (!this->allocate()) return;
1662
1663 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
1664 if (Policy != MERGE_ACTIVE_STATES_AND_NODES) return;
1665 if (!tileActive) return;
1666 // Replace all inactive values with the active tile value.
1667 for (typename NodeMaskType::OffIterator iter = mValueMask.beginOff(); iter; ++iter) {
1668 const Index n = iter.pos();
1669 mBuffer[n] = tileValue;
1670 mValueMask.setOn(n);
1671 }
1672 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
1673}
1674
1675
1676 template<typename T, Index Log2Dim>
1677 template<typename OtherType>
1678 inline void
1679 LeafNode<T, Log2Dim>::topologyUnion(const LeafNode<OtherType, Log2Dim>& other, bool)
1680{
1681 mValueMask |= other.valueMask();
1682}
1683
1684 template<typename T, Index Log2Dim>
1685 template<typename OtherType>
1686 inline void
1687 LeafNode<T, Log2Dim>::topologyIntersection(const LeafNode<OtherType, Log2Dim>& other,
1688 const ValueType&)
1689{
1690 mValueMask &= other.valueMask();
1691}
1692
1693 template<typename T, Index Log2Dim>
1694 template<typename OtherType>
1695 inline void
1696 LeafNode<T, Log2Dim>::topologyDifference(const LeafNode<OtherType, Log2Dim>& other,
1697 const ValueType&)
1698{
1699 mValueMask &= !other.valueMask();
1700}
1701
1702 template<typename T, Index Log2Dim>
1703 inline void
1704 LeafNode<T, Log2Dim>::negate()
1705{
1706 if (!this->allocate()) return;
1707
1708 for (Index i = 0; i < SIZE; ++i) {
1709 mBuffer[i] = -mBuffer[i];
1710 }
1711}
1712
1713
1714////////////////////////////////////////
1715
1716
1717 template<typename T, Index Log2Dim>
1718 template<typename CombineOp>
1719 inline void
1720 LeafNode<T, Log2Dim>::combine(const LeafNode& other, CombineOp& op)
1721{
1722 if (!this->allocate()) return;
1723
1724 CombineArgs<T> args;
1725 for (Index i = 0; i < SIZE; ++i) {
1726 op(args.setARef(mBuffer[i])
1727 .setAIsActive(mValueMask.isOn(i))
1728 .setBRef(other.mBuffer[i])
1729 .setBIsActive(other.valueMask().isOn(i))
1730 .setResultRef(mBuffer[i]));
1731 mValueMask.set(i, args.resultIsActive());
1732 }
1733}
1734
1735
1736 template<typename T, Index Log2Dim>
1737 template<typename CombineOp>
1738 inline void
1739 LeafNode<T, Log2Dim>::combine(const ValueType& value, bool valueIsActive, CombineOp& op)
1740{
1741 if (!this->allocate()) return;
1742
1743 CombineArgs<T> args;
1744 args.setBRef(value).setBIsActive(valueIsActive);
1745 for (Index i = 0; i < SIZE; ++i) {
1746 op(args.setARef(mBuffer[i])
1747 .setAIsActive(mValueMask.isOn(i))
1748 .setResultRef(mBuffer[i]));
1749 mValueMask.set(i, args.resultIsActive());
1750 }
1751}
1752
1753
1754////////////////////////////////////////
1755
1756
1757 template<typename T, Index Log2Dim>
1758 template<typename CombineOp, typename OtherType>
1759 inline void
1760 LeafNode<T, Log2Dim>::combine2(const LeafNode& other, const OtherType& value,
1761 bool valueIsActive, CombineOp& op)
1762{
1763 if (!this->allocate()) return;
1764
1765 CombineArgs<T, OtherType> args;
1766 args.setBRef(value).setBIsActive(valueIsActive);
1767 for (Index i = 0; i < SIZE; ++i) {
1768 op(args.setARef(other.mBuffer[i])
1769 .setAIsActive(other.valueMask().isOn(i))
1770 .setResultRef(mBuffer[i]));
1771 mValueMask.set(i, args.resultIsActive());
1772 }
1773}
1774
1775
1776 template<typename T, Index Log2Dim>
1777 template<typename CombineOp, typename OtherNodeT>
1778 inline void
1779 LeafNode<T, Log2Dim>::combine2(const ValueType& value, const OtherNodeT& other,
1780 bool valueIsActive, CombineOp& op)
1781{
1782 if (!this->allocate()) return;
1783
1784 CombineArgs<T, typename OtherNodeT::ValueType> args;
1785 args.setARef(value).setAIsActive(valueIsActive);
1786 for (Index i = 0; i < SIZE; ++i) {
1787 op(args.setBRef(other.mBuffer[i])
1788 .setBIsActive(other.valueMask().isOn(i))
1789 .setResultRef(mBuffer[i]));
1790 mValueMask.set(i, args.resultIsActive());
1791 }
1792}
1793
1794
1795 template<typename T, Index Log2Dim>
1796 template<typename CombineOp, typename OtherNodeT>
1797 inline void
1798 LeafNode<T, Log2Dim>::combine2(const LeafNode& b0, const OtherNodeT& b1, CombineOp& op)
1799{
1800 if (!this->allocate()) return;
1801
1802 CombineArgs<T, typename OtherNodeT::ValueType> args;
1803 for (Index i = 0; i < SIZE; ++i) {
1804 mValueMask.set(i, b0.valueMask().isOn(i) || b1.valueMask().isOn(i));
1805 op(args.setARef(b0.mBuffer[i])
1806 .setAIsActive(b0.valueMask().isOn(i))
1807 .setBRef(b1.mBuffer[i])
1808 .setBIsActive(b1.valueMask().isOn(i))
1809 .setResultRef(mBuffer[i]));
1810 mValueMask.set(i, args.resultIsActive());
1811 }
1812}
1813
1814
1815////////////////////////////////////////
1816
1817
1818 template<typename T, Index Log2Dim>
1819 inline std::ostream&
1820 operator<<(std::ostream& os, const typename LeafNode<T, Log2Dim>::Buffer& buf)
1821{
1822 for (Index32 i = 0, N = buf.size(); i < N; ++i) os << buf.mData[i] << ", ";
1823 return os;
1824}
1825
1826} // namespace tree
1827} // namespace OPENVDB_VERSION_NAME
1828} // namespace openvdb
1829
1830
1831////////////////////////////////////////
1832
1833
1834// Specialization for LeafNodes of type bool
1835#include "LeafNodeBool.h"
1836
1837// Specialization for LeafNodes with mask information only
1838#include "LeafNodeMask.h"
1839
1840#endif // OPENVDB_TREE_LEAFNODE_HAS_BEEN_INCLUDED
Compression.h
Iterator.h
LeafBuffer.h
LeafNodeBool.h
LeafNodeMask.h
NodeMasks.h
OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
#define OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
Definition Platform.h:141
OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
#define OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
Definition Platform.h:140
TestLeafIO
Definition LeafNode.h:22
openvdb::v11_0::CombineArgs
This struct collects both input and output arguments to "grid combiner" functors used with the tree::...
Definition Types.h:569
openvdb::v11_0::CombineArgs::setARef
CombineArgs & setARef(const AValueType &a)
Redirect the A value to a new external source.
Definition Types.h:621
openvdb::v11_0::CombineArgs::setBIsActive
CombineArgs & setBIsActive(bool b)
Set the active state of the B value.
Definition Types.h:637
openvdb::v11_0::CombineArgs::setResultRef
CombineArgs & setResultRef(AValueType &val)
Redirect the result value to a new external destination.
Definition Types.h:625
openvdb::v11_0::CombineArgs::setBRef
CombineArgs & setBRef(const BValueType &b)
Redirect the B value to a new external source.
Definition Types.h:623
openvdb::v11_0::CombineArgs::resultIsActive
bool resultIsActive() const
Definition Types.h:632
openvdb::v11_0::CombineArgs::setAIsActive
CombineArgs & setAIsActive(bool b)
Set the active state of the A value.
Definition Types.h:635
openvdb::v11_0::PartialCreate
Tag dispatch class that distinguishes constructors during file input.
Definition Types.h:689
openvdb::v11_0::TopologyCopy
Tag dispatch class that distinguishes topology copy constructors from deep copy constructors.
Definition Types.h:683
openvdb::v11_0::math::CoordBBox
Axis-aligned bounding box of signed integer coordinates.
Definition Coord.h:251
openvdb::v11_0::math::CoordBBox::translate
void translate(const Coord &t)
Translate this bounding box by (tx, ty, tz).
Definition Coord.h:460
openvdb::v11_0::math::CoordBBox::expand
void expand(ValueType padding)
Pad this bounding box with the specified padding.
Definition Coord.h:420
openvdb::v11_0::math::CoordBBox::min
const Coord & min() const
Definition Coord.h:323
openvdb::v11_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:414
openvdb::v11_0::math::CoordBBox::max
const Coord & max() const
Definition Coord.h:324
openvdb::v11_0::math::CoordBBox::inf
static CoordBBox inf()
Return an "infinite" bounding box, as defined by the Coord value range.
Definition Coord.h:321
openvdb::v11_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:402
openvdb::v11_0::math::CoordBBox::intersect
void intersect(const CoordBBox &bbox)
Intersect this bounding box with the given bounding box.
Definition Coord.h:446
openvdb::v11_0::math::CoordBBox::reset
void reset()
Definition Coord.h:329
openvdb::v11_0::math::Coord
Signed (x, y, z) 32-bit integer coordinates.
Definition Coord.h:25
openvdb::v11_0::math::Coord::ValueType
Int32 ValueType
Definition Coord.h:32
openvdb::v11_0::math::Coord::y
Int32 y() const
Definition Coord.h:131
openvdb::v11_0::math::Coord::x
Int32 x() const
Definition Coord.h:130
openvdb::v11_0::math::Coord::setZ
Coord & setZ(Int32 z)
Definition Coord.h:81
openvdb::v11_0::math::Coord::setY
Coord & setY(Int32 y)
Definition Coord.h:80
openvdb::v11_0::math::Coord::z
Int32 z() const
Definition Coord.h:132
openvdb::v11_0::math::Coord::setX
Coord & setX(Int32 x)
Definition Coord.h:79
openvdb::v11_0::tree::IteratorBase
Base class for iterators over internal and leaf nodes.
Definition Iterator.h:30
openvdb::v11_0::tree::LeafBuffer< ValueType, Log2Dim >
openvdb::v11_0::tree::LeafBuffer::memUsage
Index memUsage() const
Return the memory footprint of this buffer in bytes.
Definition LeafBuffer.h:319
openvdb::v11_0::tree::LeafBuffer::size
static Index size()
Return the number of values contained in this buffer.
Definition LeafBuffer.h:111
openvdb::v11_0::tree::LeafNode
Templated block class to hold specific data types and a fixed number of values determined by Log2Dim....
Definition LeafNode.h:38
openvdb::v11_0::tree::LeafNode::stealNodes
void stealNodes(ArrayT &, const ValueType &, bool)
Definition LeafNode.h:706
openvdb::v11_0::tree::LeafNode::operator=
LeafNode & operator=(const LeafNode &)=default
Deep assignment operator.
openvdb::v11_0::tree::LeafNode::probeValueAndCache
bool probeValueAndCache(const Coord &xyz, ValueType &val, AccessorT &) const
Return true if the voxel at the given coordinates is active and return the voxel value in val.
Definition LeafNode.h:600
openvdb::v11_0::tree::LeafNode::isValueOn
bool isValueOn(Index offset) const
Return true if the voxel at the given offset is active.
Definition LeafNode.h:477
openvdb::v11_0::tree::LeafNode::onTileCount
static Index64 onTileCount()
Definition LeafNode.h:145
openvdb::v11_0::tree::LeafNode::getOrigin
void getOrigin(Int32 &x, Int32 &y, Int32 &z) const
Definition LeafNode.h:175
openvdb::v11_0::tree::LeafNode::offsetToLocalCoord
static Coord offsetToLocalCoord(Index n)
Return the local coordinates for a linear table offset, where offset 0 has coordinates (0,...
Definition LeafNode.h:1020
openvdb::v11_0::tree::LeafNode::cbeginChildOn
ChildOnCIter cbeginChildOn() const
Definition LeafNode.h:319
openvdb::v11_0::tree::LeafNode::Ptr
SharedPtr< LeafNode > Ptr
Definition LeafNode.h:45
openvdb::v11_0::tree::LeafNode::getNodeBoundingBox
CoordBBox getNodeBoundingBox() const
Return the bounding box of this node, i.e., the full index space spanned by this leaf node.
Definition LeafNode.h:167
openvdb::v11_0::tree::LeafNode::getValueMask
NodeMaskType & getValueMask()
Definition LeafNode.h:855
openvdb::v11_0::tree::LeafNode::setValueOn
void setValueOn(Index offset)
Mark the voxel at the given offset as active but don't change its value.
Definition LeafNode.h:419
openvdb::v11_0::tree::LeafNode::isChildMaskOn
bool isChildMaskOn(Index) const
Definition LeafNode.h:858
openvdb::v11_0::tree::LeafNode::beginChildOn
ChildOnCIter beginChildOn() const
Definition LeafNode.h:320
openvdb::v11_0::tree::LeafNode::beginChildOn
ChildOnIter beginChildOn()
Definition LeafNode.h:321
openvdb::v11_0::tree::LeafNode::isValueOn
bool isValueOn(const Coord &xyz) const
Return true if the voxel at the given coordinates is active.
Definition LeafNode.h:475
openvdb::v11_0::tree::LeafNode::endValueOn
ValueOnIter endValueOn()
Definition LeafNode.h:309
openvdb::v11_0::tree::LeafNode::writeTopology
void writeTopology(std::ostream &os, bool toHalf=false) const
Write out just the topology.
Definition LeafNode.h:1276
openvdb::v11_0::tree::LeafNode::copyToDense
void copyToDense(const CoordBBox &bbox, DenseT &dense) const
Copy into a dense grid the values of the voxels that lie within a given bounding box.
Definition LeafNode.h:1204
openvdb::v11_0::tree::LeafNode::isChildMaskOff
bool isChildMaskOff() const
Definition LeafNode.h:860
openvdb::v11_0::tree::LeafNode::cbeginValueOff
ValueOffCIter cbeginValueOff() const
Definition LeafNode.h:300
openvdb::v11_0::tree::LeafNode::transientData
Index32 transientData() const
Return the transient data value.
Definition LeafNode.h:187
openvdb::v11_0::tree::LeafNode::childCount
static Index32 childCount()
Return the child count for this node, which is zero.
Definition LeafNode.h:137
openvdb::v11_0::tree::LeafNode::setValue
void setValue(const Coord &xyz, const ValueType &val)
Set the value of the voxel at the given coordinates and mark the voxel as active.
Definition LeafNode.h:425
openvdb::v11_0::tree::LeafNode::getChildDim
static Index getChildDim()
Return the dimension of child nodes of this LeafNode, which is one for voxels.
Definition LeafNode.h:129
openvdb::v11_0::tree::LeafNode::operator!=
bool operator!=(const LeafNode &other) const
Definition LeafNode.h:201
openvdb::v11_0::tree::LeafNode::copyFromDense
void copyFromDense(const CoordBBox &bbox, const DenseT &dense, const ValueType &background, const ValueType &tolerance)
Copy from a dense grid into this node the values of the voxels that lie within a given bounding box.
Definition LeafNode.h:1231
openvdb::v11_0::tree::LeafNode::getValue
const ValueType & getValue(const Coord &xyz) const
Return the value of the voxel at the given coordinates.
Definition LeafNode.h:1045
openvdb::v11_0::tree::LeafNode::setValueMask
void setValueMask(const NodeMaskType &mask)
Definition LeafNode.h:857
openvdb::v11_0::tree::LeafNode::endChildOn
ChildOnIter endChildOn()
Definition LeafNode.h:331
openvdb::v11_0::tree::LeafNode::endValueAll
ValueAllIter endValueAll()
Definition LeafNode.h:315
openvdb::v11_0::tree::LeafNode::touchLeaf
LeafNode * touchLeaf(const Coord &)
Return a pointer to this node.
Definition LeafNode.h:716
openvdb::v11_0::tree::LeafNode::setValueOnly
void setValueOnly(const Coord &xyz, const ValueType &val)
Set the value of the voxel at the given coordinates but don't change its active state.
Definition LeafNode.h:1103
openvdb::v11_0::tree::LeafNode::probeLeaf
LeafNode * probeLeaf(const Coord &)
Definition LeafNode.h:727
openvdb::v11_0::tree::LeafNode::isValueMaskOff
bool isValueMaskOff() const
Definition LeafNode.h:853
openvdb::v11_0::tree::LeafNode::prune
void prune(const ValueType &=zeroVal< ValueType >())
This function exists only to enable template instantiation.
Definition LeafNode.h:695
openvdb::v11_0::tree::LeafNode::isValueMaskOn
bool isValueMaskOn() const
Definition LeafNode.h:851
openvdb::v11_0::tree::LeafNode::topologyDifference
void topologyDifference(const LeafNode< OtherType, Log2Dim > &other, const ValueType &)
Difference this node's set of active values with the active values of the other node,...
Definition LeafNode.h:1696
openvdb::v11_0::tree::LeafNode::getNodes
void getNodes(ArrayT &) const
Definition LeafNode.h:705
openvdb::v11_0::tree::LeafNode::setValuesOff
void setValuesOff()
Mark all voxels as inactive but don't change their values.
Definition LeafNode.h:472
openvdb::v11_0::tree::LeafNode::endValueAll
ValueAllCIter endValueAll() const
Definition LeafNode.h:314
openvdb::v11_0::tree::LeafNode::medianOff
Index medianOff(ValueType &value, ValueType *tmp=nullptr) const
Computes the median value of all the inactive voxels in this node.
Definition LeafNode.h:1553
openvdb::v11_0::tree::LeafNode::setValueOn
void setValueOn(const Coord &xyz, const ValueType &val)
Set the value of the voxel at the given coordinates and mark the voxel as active.
Definition LeafNode.h:421
openvdb::v11_0::tree::LeafNode::onLeafVoxelCount
Index64 onLeafVoxelCount() const
Definition LeafNode.h:143
openvdb::v11_0::tree::LeafNode::endChildOff
ChildOffCIter endChildOff() const
Definition LeafNode.h:333
openvdb::v11_0::tree::LeafNode::medianAll
ValueType medianAll(ValueType *tmp=nullptr) const
Computes the median value of all the active AND inactive voxels in this node.
Definition LeafNode.h:1511
openvdb::v11_0::tree::LeafNode::~LeafNode
~LeafNode()
Destructor.
Definition LeafNode.h:990
openvdb::v11_0::tree::LeafNode::cbeginValueAll
ValueAllCIter cbeginValueAll() const
Definition LeafNode.h:303
openvdb::v11_0::tree::LeafNode::probeNode
NodeT * probeNode(const Coord &)
Definition LeafNode.h:702
openvdb::v11_0::tree::LeafNode::readTopology
void readTopology(std::istream &is, bool fromHalf=false)
Read in just the topology.
Definition LeafNode.h:1268
openvdb::v11_0::tree::LeafNode::beginValueOn
ValueOnCIter beginValueOn() const
Definition LeafNode.h:298
openvdb::v11_0::tree::LeafNode::evalNodeOrigin
static void evalNodeOrigin(Coord &xyz)
Compute the origin of the leaf node that contains the voxel with the given coordinates.
Definition LeafNode.h:869
openvdb::v11_0::tree::LeafNode::buffer
const Buffer & buffer() const
Definition LeafNode.h:345
openvdb::v11_0::tree::LeafNode::probeLeafAndCache
LeafNode * probeLeafAndCache(const Coord &, AccessorT &)
Definition LeafNode.h:729
openvdb::v11_0::tree::LeafNode::setValueMaskOn
void setValueMaskOn(Index n)
Definition LeafNode.h:863
openvdb::v11_0::tree::LeafNode::medianOn
Index medianOn(ValueType &value, ValueType *tmp=nullptr) const
Computes the median value of all the active voxels in this node.
Definition LeafNode.h:1529
openvdb::v11_0::tree::LeafNode::offLeafVoxelCount
Index64 offLeafVoxelCount() const
Definition LeafNode.h:144
openvdb::v11_0::tree::LeafNode::probeLeaf
const LeafNode * probeLeaf(const Coord &) const
Definition LeafNode.h:738
openvdb::v11_0::tree::LeafNode::addTile
void addTile(Index level, const Coord &, const ValueType &, bool)
Definition LeafNode.h:1580
openvdb::v11_0::tree::LeafNode::resetBackground
void resetBackground(const ValueType &oldBackground, const ValueType &newBackground)
Replace inactive occurrences of oldBackground with newBackground, and inactive occurrences of -oldBac...
Definition LeafNode.h:1609
openvdb::v11_0::tree::LeafNode::setOrigin
void setOrigin(const Coord &origin)
Set the grid index coordinates of this node's local origin.
Definition LeafNode.h:170
openvdb::v11_0::tree::LeafNode::origin
const Coord & origin() const
Return the grid index coordinates of this node's local origin.
Definition LeafNode.h:173
openvdb::v11_0::tree::LeafNode::getValueLevel
static Index getValueLevel(const Coord &)
Return the level (i.e., 0) at which leaf node values reside.
Definition LeafNode.h:394
openvdb::v11_0::tree::LeafNode::isInactive
bool isInactive() const
Return true if all of this node's values are inactive.
Definition LeafNode.h:825
openvdb::v11_0::tree::LeafNode::modifyValueAndActiveState
void modifyValueAndActiveState(const Coord &xyz, const ModifyOp &op)
Apply a functor to the voxel at the given coordinates.
Definition LeafNode.h:456
openvdb::v11_0::tree::LeafNode::isValueMaskOff
bool isValueMaskOff(Index n) const
Definition LeafNode.h:852
openvdb::v11_0::tree::LeafNode::cendValueOn
ValueOnCIter cendValueOn() const
Definition LeafNode.h:307
openvdb::v11_0::tree::LeafNode::isAllocated
bool isAllocated() const
Return true if memory for this node's buffer has been allocated.
Definition LeafNode.h:152
openvdb::v11_0::tree::LeafNode::getValueLevelAndCache
static Index getValueLevelAndCache(const Coord &, AccessorT &)
Return the LEVEL (=0) at which leaf node values reside.
Definition LeafNode.h:620
openvdb::v11_0::tree::LeafNode::numValues
static Index numValues()
Return the total number of voxels represented by this LeafNode.
Definition LeafNode.h:123
openvdb::v11_0::tree::LeafNode::beginValueOff
ValueOffCIter beginValueOff() const
Definition LeafNode.h:301
openvdb::v11_0::tree::LeafNode::setValueOffAndCache
void setValueOffAndCache(const Coord &xyz, const ValueType &value, AccessorT &)
Change the value of the voxel at the given coordinates and mark it as inactive.
Definition LeafNode.h:582
openvdb::v11_0::tree::LeafNode::getValue
const ValueType & getValue(const Coord &xyz, bool &state, int &level, AccessorT &) const
Return the value of the voxel at the given coordinates and return its active state and level (i....
Definition LeafNode.h:609
openvdb::v11_0::tree::LeafNode::getValueAndCache
const ValueType & getValueAndCache(const Coord &xyz, AccessorT &) const
Return the value of the voxel at the given coordinates.
Definition LeafNode.h:535
openvdb::v11_0::tree::LeafNode::cbeginChildAll
ChildAllCIter cbeginChildAll() const
Definition LeafNode.h:325
openvdb::v11_0::tree::LeafNode::topologyIntersection
void topologyIntersection(const LeafNode< OtherType, Log2Dim > &other, const ValueType &)
Intersect this node's set of active values with the active values of the other node,...
Definition LeafNode.h:1687
openvdb::v11_0::tree::LeafNode::endChildOff
ChildOffIter endChildOff()
Definition LeafNode.h:334
openvdb::v11_0::tree::LeafNode::clip
void clip(const CoordBBox &, const ValueType &background)
Set all voxels that lie outside the given axis-aligned box to the background.
Definition LeafNode.h:1121
openvdb::v11_0::tree::LeafNode::beginChildAll
ChildAllIter beginChildAll()
Definition LeafNode.h:327
openvdb::v11_0::tree::LeafNode::setValueOn
void setValueOn(Index offset, const ValueType &val)
Set the value of the voxel at the given offset and mark the voxel as active.
Definition LeafNode.h:427
openvdb::v11_0::tree::LeafNode::getLevel
static Index getLevel()
Return the level of this node, which by definition is zero for LeafNodes.
Definition LeafNode.h:125
openvdb::v11_0::tree::LeafNode::isValueOnAndCache
bool isValueOnAndCache(const Coord &xyz, AccessorT &) const
Return true if the voxel at the given coordinates is active.
Definition LeafNode.h:543
openvdb::v11_0::tree::LeafNode::addLeaf
void addLeaf(LeafNode *)
Definition LeafNode.h:696
openvdb::v11_0::tree::LeafNode::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 LeafNode.h:1095
openvdb::v11_0::tree::LeafNode::beginValueOn
ValueOnIter beginValueOn()
Definition LeafNode.h:299
openvdb::v11_0::tree::LeafNode::modifyValueAndCache
void modifyValueAndCache(const Coord &xyz, const ModifyOp &op, AccessorT &)
Apply a functor to the value of the voxel at the given coordinates and mark the voxel as active.
Definition LeafNode.h:566
openvdb::v11_0::tree::LeafNode::topologyUnion
void topologyUnion(const LeafNode< OtherType, Log2Dim > &other, const bool preserveTiles=false)
Union this node's set of active values with the active values of the other node, whose ValueType may ...
Definition LeafNode.h:1679
openvdb::v11_0::tree::LeafNode::probeNodeAndCache
NodeT * probeNodeAndCache(const Coord &, AccessorT &)
Definition LeafNode.h:720
openvdb::v11_0::tree::LeafNode::getFirstValue
const ValueType & getFirstValue() const
Return a const reference to the first value in the buffer.
Definition LeafNode.h:625
openvdb::v11_0::tree::LeafNode::cbeginChildOff
ChildOffCIter cbeginChildOff() const
Definition LeafNode.h:322
openvdb::v11_0::tree::LeafNode::beginChildOff
ChildOffIter beginChildOff()
Definition LeafNode.h:324
openvdb::v11_0::tree::LeafNode::isChildMaskOff
bool isChildMaskOff(Index) const
Definition LeafNode.h:859
openvdb::v11_0::tree::LeafNode::onVoxelCount
Index64 onVoxelCount() const
Return the number of voxels marked On.
Definition LeafNode.h:140
openvdb::v11_0::tree::LeafNode::beginChildOff
ChildOffCIter beginChildOff() const
Definition LeafNode.h:323
openvdb::v11_0::tree::LeafNode::coordToOffset
static Index coordToOffset(const Coord &xyz)
Return the linear table offset of the given global or local coordinates.
Definition LeafNode.h:1010
openvdb::v11_0::tree::LeafNode::offTileCount
static Index64 offTileCount()
Definition LeafNode.h:146
openvdb::v11_0::tree::LeafNode::setValueOff
void setValueOff(const Coord &xyz)
Mark the voxel at the given coordinates as inactive but don't change its value.
Definition LeafNode.h:407
openvdb::v11_0::tree::LeafNode::hasSameTopology
bool hasSameTopology(const LeafNode< OtherType, OtherLog2Dim > *other) const
Return true if the given node (which may have a different ValueType than this node) has the same acti...
Definition LeafNode.h:1467
openvdb::v11_0::tree::LeafNode::endValueOff
ValueOffIter endValueOff()
Definition LeafNode.h:312
openvdb::v11_0::tree::LeafNode::setValueOff
void setValueOff(Index offset)
Mark the voxel at the given offset as inactive but don't change its value.
Definition LeafNode.h:409
openvdb::v11_0::tree::LeafNode::probeConstLeafAndCache
const LeafNode * probeConstLeafAndCache(const Coord &, AccessorT &) const
Definition LeafNode.h:735
openvdb::v11_0::tree::LeafNode::endChildAll
ChildAllCIter endChildAll() const
Definition LeafNode.h:336
openvdb::v11_0::tree::LeafNode::probeConstNodeAndCache
const NodeT * probeConstNodeAndCache(const Coord &, AccessorT &) const
Definition LeafNode.h:740
openvdb::v11_0::tree::LeafNode::cbeginValueOn
ValueOnCIter cbeginValueOn() const
Definition LeafNode.h:297
openvdb::v11_0::tree::LeafNode::writeBuffers
void writeBuffers(std::ostream &os, bool toHalf=false) const
Write buffers to a stream.
Definition LeafNode.h:1402
openvdb::v11_0::tree::LeafNode::log2dim
static Index log2dim()
Return log2 of the dimension of this LeafNode, e.g. 3 if dimensions are 8^3.
Definition LeafNode.h:117
openvdb::v11_0::tree::LeafNode::combine
void combine(const LeafNode &other, CombineOp &op)
Definition LeafNode.h:1720
openvdb::v11_0::tree::LeafNode::getNodeLog2Dims
static void getNodeLog2Dims(std::vector< Index > &dims)
Append the Log2Dim of this LeafNode to the specified vector.
Definition LeafNode.h:127
openvdb::v11_0::tree::LeafNode::endChildOn
ChildOnCIter endChildOn() const
Definition LeafNode.h:330
openvdb::v11_0::tree::LeafNode::probeConstLeaf
const LeafNode * probeConstLeaf(const Coord &) const
Return a const pointer to this node.
Definition LeafNode.h:733
openvdb::v11_0::tree::LeafNode::nonLeafCount
static Index32 nonLeafCount()
Return the non-leaf count for this node, which is zero.
Definition LeafNode.h:135
openvdb::v11_0::tree::LeafNode::cendChildOn
ChildOnCIter cendChildOn() const
Definition LeafNode.h:329
openvdb::v11_0::tree::LeafNode::hasActiveTiles
static bool hasActiveTiles()
Return false since leaf nodes never contain tiles.
Definition LeafNode.h:480
openvdb::v11_0::tree::LeafNode::cendChildAll
ChildAllCIter cendChildAll() const
Definition LeafNode.h:335
openvdb::v11_0::tree::LeafNode::memUsageIfLoaded
Index64 memUsageIfLoaded() const
Definition LeafNode.h:1439
openvdb::v11_0::tree::LeafNode::combine2
void combine2(const LeafNode &other, const OtherType &, bool valueIsActive, CombineOp &)
Definition LeafNode.h:1760
openvdb::v11_0::tree::LeafNode::fill
void fill(const CoordBBox &bbox, const ValueType &, bool active=true)
Set all voxels within an axis-aligned box to the specified value and active state.
Definition LeafNode.h:1161
openvdb::v11_0::tree::LeafNode::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 LeafNode.h:449
openvdb::v11_0::tree::LeafNode::endChildAll
ChildAllIter endChildAll()
Definition LeafNode.h:337
openvdb::v11_0::tree::LeafNode::streamingSize
size_t streamingSize(bool toHalf=false) const
openvdb::v11_0::tree::LeafNode::setValueMask
void setValueMask(Index n, bool on)
Definition LeafNode.h:862
openvdb::v11_0::tree::LeafNode::valueMask
const NodeMaskType & valueMask() const
Definition LeafNode.h:856
openvdb::v11_0::tree::LeafNode::offVoxelCount
Index64 offVoxelCount() const
Return the number of voxels marked Off.
Definition LeafNode.h:142
openvdb::v11_0::tree::LeafNode::MaskOffIterator
typename NodeMaskType::OffIterator MaskOffIterator
Definition LeafNode.h:205
openvdb::v11_0::tree::LeafNode::swap
void swap(Buffer &other)
Exchange this node's data buffer with the given data buffer without changing the active states of the...
Definition LeafNode.h:344
openvdb::v11_0::tree::LeafNode::readBuffers
void readBuffers(std::istream &is, bool fromHalf=false)
Read buffers from a stream.
Definition LeafNode.h:1304
openvdb::v11_0::tree::LeafNode::isConstant
bool isConstant(ValueType &firstValue, bool &state, const ValueType &tolerance=zeroVal< ValueType >()) const
Definition LeafNode.h:1475
openvdb::v11_0::tree::LeafNode::BuildType
T BuildType
Definition LeafNode.h:40
openvdb::v11_0::tree::LeafNode::cendValueAll
ValueAllCIter cendValueAll() const
Definition LeafNode.h:313
openvdb::v11_0::tree::LeafNode::LeafNode
friend class LeafNode
Definition LeafNode.h:833
openvdb::v11_0::tree::LeafNode::denseFill
void denseFill(const CoordBBox &bbox, const ValueType &value, bool active=true)
Set all voxels within an axis-aligned box to the specified value and active state.
Definition LeafNode.h:488
openvdb::v11_0::tree::LeafNode::negate
void negate()
Definition LeafNode.h:1704
openvdb::v11_0::tree::LeafNode::offsetToGlobalCoord
Coord offsetToGlobalCoord(Index n) const
Return the global coordinates for a linear table offset.
Definition LeafNode.h:1034
openvdb::v11_0::tree::LeafNode::beginChildAll
ChildAllCIter beginChildAll() const
Definition LeafNode.h:326
openvdb::v11_0::tree::LeafNode::probeLeafAndCache
const LeafNode * probeLeafAndCache(const Coord &, AccessorT &) const
Definition LeafNode.h:737
openvdb::v11_0::tree::LeafNode::setActiveStateAndCache
void setActiveStateAndCache(const Coord &xyz, bool on, AccessorT &)
Set the active state of the voxel at the given coordinates without changing its value.
Definition LeafNode.h:591
openvdb::v11_0::tree::LeafNode::getOrigin
void getOrigin(Coord &origin) const
Definition LeafNode.h:174
openvdb::v11_0::tree::LeafNode::setValuesOn
void setValuesOn()
Mark all voxels as active but don't change their values.
Definition LeafNode.h:470
openvdb::v11_0::tree::LeafNode::setTransientData
void setTransientData(Index32 transientData)
Set the transient data value.
Definition LeafNode.h:189
openvdb::v11_0::tree::LeafNode::nodeCount
void nodeCount(std::vector< Index32 > &) const
no-op
Definition LeafNode.h:133
openvdb::v11_0::tree::LeafNode::size
static Index size()
Return the total number of voxels represented by this LeafNode.
Definition LeafNode.h:121
openvdb::v11_0::tree::LeafNode::cendChildOff
ChildOffCIter cendChildOff() const
Definition LeafNode.h:332
openvdb::v11_0::tree::LeafNode::skipCompressedValues
void skipCompressedValues(bool seekable, std::istream &, bool fromHalf)
Definition LeafNode.h:1288
openvdb::v11_0::tree::LeafNode::MaskOnIterator
typename NodeMaskType::OnIterator MaskOnIterator
Definition LeafNode.h:204
openvdb::v11_0::tree::LeafNode::operator==
bool operator==(const LeafNode &other) const
Check for buffer, state and origin equivalence.
Definition LeafNode.h:1419
openvdb::v11_0::tree::LeafNode::SIZE
static const Index SIZE
Definition LeafNode.h:53
openvdb::v11_0::tree::LeafNode::evalActiveBoundingBox
void evalActiveBoundingBox(CoordBBox &bbox, bool visitVoxels=true) const
Definition LeafNode.h:1449
openvdb::v11_0::tree::LeafNode::isEmpty
bool isEmpty() const
Return true if this node has no active voxels.
Definition LeafNode.h:148
openvdb::v11_0::tree::LeafNode::merge
void merge(const LeafNode &)
Definition LeafNode.h:1630
openvdb::v11_0::tree::LeafNode::beginValueOff
ValueOffIter beginValueOff()
Definition LeafNode.h:302
openvdb::v11_0::tree::LeafNode::probeConstNode
const NodeT * probeConstNode(const Coord &) const
Definition LeafNode.h:704
openvdb::v11_0::tree::LeafNode::setValueOn
void setValueOn(const Coord &xyz)
Mark the voxel at the given coordinates as active but don't change its value.
Definition LeafNode.h:417
openvdb::v11_0::tree::LeafNode::buffer
Buffer & buffer()
Definition LeafNode.h:346
openvdb::v11_0::tree::LeafNode::setValueOnlyAndCache
void setValueOnlyAndCache(const Coord &xyz, const ValueType &val, AccessorT &)
Change the value of the voxel at the given coordinates but preserve its state.
Definition LeafNode.h:557
openvdb::v11_0::tree::LeafNode::setActiveState
void setActiveState(Index offset, bool on)
Set the active state of the voxel at the given offset but don't change its value.
Definition LeafNode.h:399
openvdb::v11_0::tree::LeafNode::leafCount
static Index32 leafCount()
Return the leaf count for this node, which is one.
Definition LeafNode.h:131
openvdb::v11_0::tree::LeafNode::allocate
bool allocate()
Allocate memory for this node's buffer if it has not already been allocated.
Definition LeafNode.h:154
openvdb::v11_0::tree::LeafNode::getValueMask
const NodeMaskType & getValueMask() const
Definition LeafNode.h:854
openvdb::v11_0::tree::LeafNode::addTileAndCache
void addTileAndCache(Index, const Coord &, const ValueType &, bool, AccessorT &)
Definition LeafNode.h:1597
openvdb::v11_0::tree::LeafNode::addLeafAndCache
void addLeafAndCache(LeafNode *, AccessorT &)
Definition LeafNode.h:698
openvdb::v11_0::tree::LeafNode::modifyValue
void modifyValue(Index offset, const ModifyOp &op)
Apply a functor to the value of the voxel at the given offset and mark the voxel as active.
Definition LeafNode.h:435
openvdb::v11_0::tree::LeafNode::cendValueOff
ValueOffCIter cendValueOff() const
Definition LeafNode.h:310
openvdb::v11_0::tree::LeafNode::setValueMaskOff
void setValueMaskOff(Index n)
Definition LeafNode.h:864
openvdb::v11_0::tree::LeafNode::memUsage
Index64 memUsage() const
Return the memory in bytes occupied by this node.
Definition LeafNode.h:1429
openvdb::v11_0::tree::LeafNode::isDense
bool isDense() const
Return true if this node contains only active voxels.
Definition LeafNode.h:150
openvdb::v11_0::tree::LeafNode::endValueOff
ValueOffCIter endValueOff() const
Definition LeafNode.h:311
openvdb::v11_0::tree::LeafNode::setValueAndCache
void setValueAndCache(const Coord &xyz, const ValueType &val, AccessorT &)
Change the value of the voxel at the given coordinates and mark it as active.
Definition LeafNode.h:548
openvdb::v11_0::tree::LeafNode::str
std::string str() const
Return a string representation of this node.
Definition LeafNode.h:997
openvdb::v11_0::tree::LeafNode::stealNode
NodeT * stealNode(const Coord &, const ValueType &, bool)
Definition LeafNode.h:700
openvdb::v11_0::tree::LeafNode::ValueType
T ValueType
Definition LeafNode.h:41
openvdb::v11_0::tree::LeafNode::probeValue
bool probeValue(const Coord &xyz, ValueType &val) const
Return true if the voxel at the given coordinates is active.
Definition LeafNode.h:1061
openvdb::v11_0::tree::LeafNode::endValueOn
ValueOnCIter endValueOn() const
Definition LeafNode.h:308
openvdb::v11_0::tree::LeafNode::MaskDenseIterator
typename NodeMaskType::DenseIterator MaskDenseIterator
Definition LeafNode.h:206
openvdb::v11_0::tree::LeafNode::voxelizeActiveTiles
void voxelizeActiveTiles(bool=true)
No-op.
Definition LeafNode.h:637
openvdb::v11_0::tree::LeafNode::modifyValueAndActiveStateAndCache
void modifyValueAndActiveStateAndCache(const Coord &xyz, const ModifyOp &op, AccessorT &)
Definition LeafNode.h:574
openvdb::v11_0::tree::LeafNode::touchLeafAndCache
LeafNode * touchLeafAndCache(const Coord &, AccessorT &)
Definition LeafNode.h:718
openvdb::v11_0::tree::LeafNode::getLastValue
const ValueType & getLastValue() const
Return a const reference to the last value in the buffer.
Definition LeafNode.h:627
openvdb::v11_0::tree::LeafNode::beginValueAll
ValueAllCIter beginValueAll() const
Definition LeafNode.h:304
openvdb::v11_0::tree::LeafNode::dim
static Index dim()
Return the number of voxels in each coordinate dimension.
Definition LeafNode.h:119
openvdb::v11_0::tree::LeafNode::isValueMaskOn
bool isValueMaskOn(Index n) const
Definition LeafNode.h:850
openvdb::v11_0::tree::LeafNode::beginValueAll
ValueAllIter beginValueAll()
Definition LeafNode.h:305
openvdb::v11_0::util::BaseMaskIterator::pos
Index32 pos() const
Definition NodeMasks.h:200
openvdb::v11_0::util::DenseMaskIterator
Definition NodeMasks.h:271
openvdb::v11_0::util::NodeMask
Bit mask for the internal and leaf nodes of VDB. This is a 64-bit implementation.
Definition NodeMasks.h:308
openvdb::v11_0::util::NodeMask::beginOn
OnIterator beginOn() const
Definition NodeMasks.h:352
openvdb::v11_0::util::NodeMask::beginOff
OffIterator beginOff() const
Definition NodeMasks.h:354
openvdb::v11_0::util::NodeMask::isOn
bool isOn(Index32 n) const
Return true if the nth bit is on.
Definition NodeMasks.h:502
openvdb::v11_0::util::NodeMask::setOn
void setOn(Index32 n)
Set the nth bit on.
Definition NodeMasks.h:452
openvdb::v11_0::util::OffMaskIterator
Definition NodeMasks.h:240
openvdb::v11_0::util::OnMaskIterator
Definition NodeMasks.h:209
openvdb::v11_0::io::getDataCompression
OPENVDB_API uint32_t getDataCompression(std::ios_base &)
Return a bitwise OR of compression option flags (COMPRESS_ZIP, COMPRESS_ACTIVE_MASK,...
openvdb::v11_0::io::writeCompressedValues
void writeCompressedValues(std::ostream &os, ValueT *srcBuf, Index srcCount, const MaskT &valueMask, const MaskT &childMask, bool toHalf)
Definition Compression.h:645
openvdb::v11_0::io::getFormatVersion
OPENVDB_API uint32_t getFormatVersion(std::ios_base &)
Return the file format version number associated with the given input stream.
openvdb::v11_0::io::COMPRESS_ZIP
@ COMPRESS_ZIP
Definition Compression.h:54
openvdb::v11_0::io::readCompressedValues
void readCompressedValues(std::istream &is, ValueT *destBuf, Index destCount, const MaskT &valueMask, bool fromHalf)
Definition Compression.h:465
openvdb::v11_0::io::getGridBackgroundValuePtr
OPENVDB_API const void * getGridBackgroundValuePtr(std::ios_base &)
Return a pointer to the background value of the grid currently being read from or written to the give...
openvdb::v11_0::io::getStreamMetadataPtr
OPENVDB_API SharedPtr< StreamMetadata > getStreamMetadataPtr(std::ios_base &)
Return a shared pointer to an object that stores metadata (file format, compression scheme,...
openvdb::v11_0::io::readData
void readData(std::istream &is, T *data, Index count, uint32_t compression, DelayedLoadMetadata *metadata=nullptr, size_t metadataOffset=size_t(0))
Read data from a stream.
Definition Compression.h:247
openvdb::v11_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:406
openvdb::v11_0::math::negative
T negative(const T &val)
Return the unary negation of the given value.
Definition Math.h:128
openvdb::v11_0::tree::operator<<
std::ostream & operator<<(std::ostream &os, const typename LeafNode< T, Log2Dim >::Buffer &buf)
Definition LeafNode.h:1820
openvdb::v11_0::Index
Index32 Index
Definition Types.h:54
openvdb::v11_0::zeroVal
constexpr T zeroVal()
Return the value of type T that corresponds to zero.
Definition Math.h:70
openvdb::v11_0::Index32
uint32_t Index32
Definition Types.h:52
openvdb::v11_0::OPENVDB_FILE_VERSION_NODE_MASK_COMPRESSION
@ OPENVDB_FILE_VERSION_NODE_MASK_COMPRESSION
Definition version.h.in:256
openvdb::v11_0::Int32
int32_t Int32
Definition Types.h:56
openvdb::v11_0::Index64
uint64_t Index64
Definition Types.h:53
openvdb::v11_0::SharedPtr
std::shared_ptr< T > SharedPtr
Definition Types.h:114
openvdb::v11_0::MERGE_NODES
@ MERGE_NODES
Definition Types.h:508
openvdb::v11_0::MERGE_ACTIVE_STATES_AND_NODES
@ MERGE_ACTIVE_STATES_AND_NODES
Definition Types.h:509
openvdb
Definition Exceptions.h:13
Types.h
allocate
static pnanovdb_uint32_t allocate(pnanovdb_uint32_t *poffset, pnanovdb_uint32_t size, pnanovdb_uint32_t alignment)
Definition pnanovdb_validate_strides.h:20
openvdb::v11_0::io::HalfReader
Definition Compression.h:292
openvdb::v11_0::tree::DenseIteratorBase
Base class for dense iterators over internal and leaf nodes.
Definition Iterator.h:179
openvdb::v11_0::tree::DenseIteratorBase::NonConstValueType
typename std::remove_const< UnsetItemT >::type NonConstValueType
Definition Iterator.h:184
openvdb::v11_0::tree::LeafNode::ChildIter
Leaf nodes have no children, so their child iterators have no get/set accessors.
Definition LeafNode.h:250
openvdb::v11_0::tree::LeafNode::ChildIter::ChildIter
ChildIter(const MaskIterT &iter, NodeT *parent)
Definition LeafNode.h:252
openvdb::v11_0::tree::LeafNode::ChildIter::ChildIter
ChildIter()
Definition LeafNode.h:251
openvdb::v11_0::tree::LeafNode::ChildOff
Definition LeafNode.h:210
openvdb::v11_0::tree::LeafNode::ChildOn
Definition LeafNode.h:210
openvdb::v11_0::tree::LeafNode::DenseIter
Definition LeafNode.h:259
openvdb::v11_0::tree::LeafNode::DenseIter::DenseIter
DenseIter(const MaskDenseIterator &iter, NodeT *parent)
Definition LeafNode.h:264
openvdb::v11_0::tree::LeafNode::DenseIter::unsetItem
void unsetItem(Index pos, const ValueT &value) const
Definition LeafNode.h:277
openvdb::v11_0::tree::LeafNode::DenseIter::getItem
bool getItem(Index pos, void *&child, NonConstValueT &value) const
Definition LeafNode.h:266
openvdb::v11_0::tree::LeafNode::DenseIter::DenseIter
DenseIter()
Definition LeafNode.h:263
openvdb::v11_0::tree::LeafNode::DenseIter::NonConstValueT
typename BaseT::NonConstValueType NonConstValueT
Definition LeafNode.h:261
openvdb::v11_0::tree::LeafNode::SameConfiguration
SameConfiguration<OtherNodeType>::value is true if and only if OtherNodeType is the type of a LeafNod...
Definition LeafNode.h:64
openvdb::v11_0::tree::LeafNode::ValueAll
Definition LeafNode.h:209
openvdb::v11_0::tree::LeafNode::ValueConverter
ValueConverter<T>::Type is the type of a LeafNode having the same dimensions as this node but a diffe...
Definition LeafNode.h:59
openvdb::v11_0::tree::LeafNode::ValueIter
Definition LeafNode.h:218
openvdb::v11_0::tree::LeafNode::ValueIter::setValue
void setValue(const ValueT &value) const
Definition LeafNode.h:233
openvdb::v11_0::tree::LeafNode::ValueIter::modifyValue
void modifyValue(const ModifyOp &op) const
Definition LeafNode.h:243
openvdb::v11_0::tree::LeafNode::ValueIter::getItem
ValueT & getItem(Index pos) const
Definition LeafNode.h:224
openvdb::v11_0::tree::LeafNode::ValueIter::setItem
void setItem(Index pos, const ValueT &value) const
Definition LeafNode.h:228
openvdb::v11_0::tree::LeafNode::ValueIter::ValueIter
ValueIter(const MaskIterT &iter, NodeT *parent)
Definition LeafNode.h:222
openvdb::v11_0::tree::LeafNode::ValueIter::getValue
ValueT & getValue() const
Definition LeafNode.h:225
openvdb::v11_0::tree::LeafNode::ValueIter::ValueIter
ValueIter()
Definition LeafNode.h:221
openvdb::v11_0::tree::LeafNode::ValueIter::modifyItem
void modifyItem(Index n, const ModifyOp &op) const
Definition LeafNode.h:240
openvdb::v11_0::tree::LeafNode::ValueOff
Definition LeafNode.h:209
openvdb::v11_0::tree::LeafNode::ValueOn
Definition LeafNode.h:209
openvdb::v11_0::tree::SameLeafConfig
Definition LeafNode.h:890
openvdb::v11_0::tree::SparseIteratorBase
Base class for sparse iterators over internal and leaf nodes.
Definition Iterator.h:115
openvdb::v11_0::tree::SparseIteratorBase< MaskIterT, ChildIter< MaskIterT, NodeT, TagT >, NodeT, ValueType >::ValueType
ValueType ValueType
Definition Iterator.h:117
OPENVDB_VERSION_NAME
#define OPENVDB_VERSION_NAME
The version namespace name for this library version.
Definition version.h.in:121
OPENVDB_USE_VERSION_NAMESPACE
#define OPENVDB_USE_VERSION_NAMESPACE
Definition version.h.in:212