OpenVDB 11.0.0

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Grid.h
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1// Copyright Contributors to the OpenVDB Project
2// SPDX-License-Identifier: MPL-2.0
3
4#ifndef OPENVDB_GRID_HAS_BEEN_INCLUDED
5#define OPENVDB_GRID_HAS_BEEN_INCLUDED
6
7#include "Exceptions.h"
8#include "MetaMap.h"
9#include "Types.h"
10#include "io/io.h"
11#include "math/Transform.h"
12#include "tree/Tree.h"
13#include "util/logging.h"
14#include "util/Name.h"
15#include <cassert>
16#include <iostream>
17#include <set>
18#include <type_traits>
19#include <vector>
20
21
22 namespace openvdb {
23 OPENVDB_USE_VERSION_NAMESPACE
24 namespace OPENVDB_VERSION_NAME {
25
26 using TreeBase = tree::TreeBase;
27
28 template<typename> class Grid; // forward declaration
29
30
31/// @brief Create a new grid of type @c GridType with a given background value.
32///
33/// @note Calling createGrid<GridType>(background) is equivalent to calling
34/// GridType::create(background).
35 template<typename GridType>
36 inline typename GridType::Ptr createGrid(const typename GridType::ValueType& background);
37
38
39/// @brief Create a new grid of type @c GridType with background value zero.
40///
41/// @note Calling createGrid<GridType>() is equivalent to calling GridType::create().
42 template<typename GridType>
43 inline typename GridType::Ptr createGrid();
44
45
46/// @brief Create a new grid of the appropriate type that wraps the given tree.
47///
48/// @note This function can be called without specifying the template argument,
49/// i.e., as createGrid(tree).
50 template<typename TreePtrType>
51 inline typename Grid<typename TreePtrType::element_type>::Ptr createGrid(TreePtrType);
52
53
54/// @brief Create a new grid of type @c GridType classified as a "Level Set",
55/// i.e., a narrow-band level set.
56///
57/// @note @c GridType::ValueType must be a floating-point scalar.
58///
59/// @param voxelSize the size of a voxel in world units
60/// @param halfWidth the half width of the narrow band in voxel units
61///
62/// @details The voxel size and the narrow band half width define the grid's
63/// background value as halfWidth*voxelWidth. The transform is linear
64/// with a uniform scaling only corresponding to the specified voxel size.
65///
66/// @note It is generally advisable to specify a half-width of the narrow band
67/// that is larger than one voxel unit, otherwise zero crossings are not guaranteed.
68 template<typename GridType>
69 typename GridType::Ptr createLevelSet(
70 Real voxelSize = 1.0, Real halfWidth = LEVEL_SET_HALF_WIDTH);
71
72
73////////////////////////////////////////
74
75
76/// @brief Abstract base class for typed grids
77 class OPENVDB_API GridBase: public MetaMap
78{
79 public:
80 using Ptr = SharedPtr<GridBase>;
81 using ConstPtr = SharedPtr<const GridBase>;
82
83 using GridFactory = Ptr (*)();
84
85
86 ~GridBase() override {}
87
88
89 /// @name Copying
90 /// @{
91
92 /// @brief Return a new grid of the same type as this grid whose metadata is a
93 /// deep copy of this grid's and whose tree and transform are shared with this grid.
94 virtual GridBase::Ptr copyGrid() = 0;
95 /// @brief Return a new grid of the same type as this grid whose metadata is a
96 /// deep copy of this grid's and whose tree and transform are shared with this grid.
97 virtual GridBase::ConstPtr copyGrid() const = 0;
98 /// @brief Return a new grid of the same type as this grid whose metadata and
99 /// transform are deep copies of this grid's and whose tree is default-constructed.
100 virtual GridBase::Ptr copyGridWithNewTree() const = 0;
101
102 /// @brief Return a new grid of the same type as this grid whose tree and transform
103 /// is shared with this grid and whose metadata is provided as an argument.
104 virtual GridBase::ConstPtr copyGridReplacingMetadata(const MetaMap& meta) const = 0;
105 /// @brief Return a new grid of the same type as this grid whose tree is shared with
106 /// this grid, whose metadata is a deep copy of this grid's and whose transform is
107 /// provided as an argument.
108 /// @throw ValueError if the transform pointer is null
109 virtual GridBase::ConstPtr copyGridReplacingTransform(math::Transform::Ptr xform) const = 0;
110 /// @brief Return a new grid of the same type as this grid whose tree is shared with
111 /// this grid and whose transform and metadata are provided as arguments.
112 /// @throw ValueError if the transform pointer is null
113 virtual GridBase::ConstPtr copyGridReplacingMetadataAndTransform(const MetaMap& meta,
114 math::Transform::Ptr xform) const = 0;
115
116 /// Return a new grid whose metadata, transform and tree are deep copies of this grid's.
117 virtual GridBase::Ptr deepCopyGrid() const = 0;
118
119 /// @}
120
121
122 /// @name Registry
123 /// @{
124
125 /// Create a new grid of the given (registered) type.
126 static Ptr createGrid(const Name& type);
127
128 /// Return @c true if the given grid type name is registered.
129 static bool isRegistered(const Name &type);
130
131 /// Clear the grid type registry.
132 static void clearRegistry();
133
134 /// @}
135
136 /// @name Type access
137 /// @{
138
139 /// Return the name of this grid's type.
140 virtual Name type() const = 0;
141 /// Return the name of the type of a voxel's value (e.g., "float" or "vec3d").
142 virtual Name valueType() const = 0;
143
144 /// Return @c true if this grid is of the same type as the template parameter.
145 template<typename GridType>
146 bool isType() const { return (this->type() == GridType::gridType()); }
147
148 /// @}
149
150 //@{
151 /// @brief Return the result of downcasting a GridBase pointer to a Grid pointer
152 /// of the specified type, or return a null pointer if the types are incompatible.
153 template<typename GridType>
154 static typename GridType::Ptr grid(const GridBase::Ptr&);
155 template<typename GridType>
156 static typename GridType::ConstPtr grid(const GridBase::ConstPtr&);
157 template<typename GridType>
158 static typename GridType::ConstPtr constGrid(const GridBase::Ptr&);
159 template<typename GridType>
160 static typename GridType::ConstPtr constGrid(const GridBase::ConstPtr&);
161 //@}
162
163 /// @name Tree
164 /// @{
165
166 /// @brief Return a pointer to this grid's tree, which might be
167 /// shared with other grids. The pointer is guaranteed to be non-null.
168 TreeBase::Ptr baseTreePtr();
169 /// @brief Return a pointer to this grid's tree, which might be
170 /// shared with other grids. The pointer is guaranteed to be non-null.
171 TreeBase::ConstPtr baseTreePtr() const { return this->constBaseTreePtr(); }
172 /// @brief Return a pointer to this grid's tree, which might be
173 /// shared with other grids. The pointer is guaranteed to be non-null.
174 virtual TreeBase::ConstPtr constBaseTreePtr() const = 0;
175
176 /// @brief Return true if tree is not shared with another grid.
177 virtual bool isTreeUnique() const = 0;
178
179 /// @brief Return a reference to this grid's tree, which might be
180 /// shared with other grids.
181 /// @note Calling @vdblink::GridBase::setTree() setTree@endlink
182 /// on this grid invalidates all references previously returned by this method.
183 TreeBase& baseTree() { return const_cast<TreeBase&>(this->constBaseTree()); }
184 /// @brief Return a reference to this grid's tree, which might be
185 /// shared with other grids.
186 /// @note Calling @vdblink::GridBase::setTree() setTree@endlink
187 /// on this grid invalidates all references previously returned by this method.
188 const TreeBase& baseTree() const { return this->constBaseTree(); }
189 /// @brief Return a reference to this grid's tree, which might be
190 /// shared with other grids.
191 /// @note Calling @vdblink::GridBase::setTree() setTree@endlink
192 /// on this grid invalidates all references previously returned by this method.
193 const TreeBase& constBaseTree() const { return *(this->constBaseTreePtr()); }
194
195 /// @brief Associate the given tree with this grid, in place of its existing tree.
196 /// @throw ValueError if the tree pointer is null
197 /// @throw TypeError if the tree is not of the appropriate type
198 /// @note Invalidates all references previously returned by
199 /// @vdblink::GridBase::baseTree() baseTree@endlink
200 /// or @vdblink::GridBase::constBaseTree() constBaseTree@endlink.
201 virtual void setTree(TreeBase::Ptr) = 0;
202
203 /// Set a new tree with the same background value as the previous tree.
204 virtual void newTree() = 0;
205
206 /// @}
207
208 /// Return @c true if this grid contains only background voxels.
209 virtual bool empty() const = 0;
210 /// Empty this grid, setting all voxels to the background.
211 virtual void clear() = 0;
212
213
214 /// @name Tools
215 /// @{
216
217 /// @brief Reduce the memory footprint of this grid by increasing its sparseness
218 /// either losslessly (@a tolerance = 0) or lossily (@a tolerance > 0).
219 /// @details With @a tolerance > 0, sparsify regions where voxels have the same
220 /// active state and have values that differ by no more than the tolerance
221 /// (converted to this grid's value type).
222 virtual void pruneGrid(float tolerance = 0.0) = 0;
223
224 /// @brief Clip this grid to the given world-space bounding box.
225 /// @details Voxels that lie outside the bounding box are set to the background.
226 /// @warning Clipping a level set will likely produce a grid that is
227 /// no longer a valid level set.
228 void clipGrid(const BBoxd&);
229
230 /// @brief Clip this grid to the given index-space bounding box.
231 /// @details Voxels that lie outside the bounding box are set to the background.
232 /// @warning Clipping a level set will likely produce a grid that is
233 /// no longer a valid level set.
234 virtual void clip(const CoordBBox&) = 0;
235
236 /// @}
237
238 /// @{
239 /// @brief If this grid resolves to one of the listed grid types,
240 /// invoke the given functor on the resolved grid.
241 /// @return @c false if this grid's type is not one of the listed types
242 ///
243 /// @par Example:
244 /// @code
245 /// using AllowedGridTypes = openvdb::TypeList<
246 /// openvdb::Int32Grid, openvdb::Int64Grid,
247 /// openvdb::FloatGrid, openvdb::DoubleGrid>;
248 ///
249 /// const openvdb::CoordBBox bbox{
250 /// openvdb::Coord{0,0,0}, openvdb::Coord{10,10,10}};
251 ///
252 /// // Fill the grid if it is one of the allowed types.
253 /// myGridBasePtr->apply<AllowedGridTypes>(
254 /// [&bbox](auto& grid) { // C++14
255 /// using GridType = typename std::decay<decltype(grid)>::type;
256 /// grid.fill(bbox, typename GridType::ValueType(1));
257 /// }
258 /// );
259 /// @endcode
260 ///
261 /// @see @vdblink::TypeList TypeList@endlink
262 template<typename GridTypeListT, typename OpT> inline bool apply(OpT&) const;
263 template<typename GridTypeListT, typename OpT> inline bool apply(OpT&);
264 template<typename GridTypeListT, typename OpT> inline bool apply(const OpT&) const;
265 template<typename GridTypeListT, typename OpT> inline bool apply(const OpT&);
266 /// @}
267
268 /// @name Metadata
269 /// @{
270
271 /// Return this grid's user-specified name.
272 std::string getName() const;
273 /// Specify a name for this grid.
274 void setName(const std::string&);
275
276 /// Return the user-specified description of this grid's creator.
277 std::string getCreator() const;
278 /// Provide a description of this grid's creator.
279 void setCreator(const std::string&);
280
281 /// @brief Return @c true if this grid should be written out with floating-point
282 /// voxel values (including components of vectors) quantized to 16 bits.
283 bool saveFloatAsHalf() const;
284 void setSaveFloatAsHalf(bool);
285
286 /// @brief Return the class of volumetric data (level set, fog volume, etc.)
287 /// that is stored in this grid.
288 /// @sa gridClassToString, gridClassToMenuName, stringToGridClass
289 GridClass getGridClass() const;
290 /// @brief Specify the class of volumetric data (level set, fog volume, etc.)
291 /// that is stored in this grid.
292 /// @sa gridClassToString, gridClassToMenuName, stringToGridClass
293 void setGridClass(GridClass);
294 /// Remove the setting specifying the class of this grid's volumetric data.
295 void clearGridClass();
296
297 /// @}
298
299 /// Return the metadata string value for the given class of volumetric data.
300 static std::string gridClassToString(GridClass);
301 /// Return a formatted string version of the grid class.
302 static std::string gridClassToMenuName(GridClass);
303 /// @brief Return the class of volumetric data specified by the given string.
304 /// @details If the string is not one of the ones returned by
305 /// @vdblink::GridBase::gridClassToString() gridClassToString@endlink,
306 /// return @c GRID_UNKNOWN.
307 static GridClass stringToGridClass(const std::string&);
308
309 /// @name Metadata
310 /// @{
311
312 /// @brief Return the type of vector data (invariant, covariant, etc.) stored
313 /// in this grid, assuming that this grid contains a vector-valued tree.
314 /// @sa vecTypeToString, vecTypeExamples, vecTypeDescription, stringToVecType
315 VecType getVectorType() const;
316 /// @brief Specify the type of vector data (invariant, covariant, etc.) stored
317 /// in this grid, assuming that this grid contains a vector-valued tree.
318 /// @sa vecTypeToString, vecTypeExamples, vecTypeDescription, stringToVecType
319 void setVectorType(VecType);
320 /// Remove the setting specifying the type of vector data stored in this grid.
321 void clearVectorType();
322
323 /// @}
324
325 /// Return the metadata string value for the given type of vector data.
326 static std::string vecTypeToString(VecType);
327 /// Return a string listing examples of the given type of vector data
328 /// (e.g., "Gradient/Normal", given VEC_COVARIANT).
329 static std::string vecTypeExamples(VecType);
330 /// @brief Return a string describing how the given type of vector data is affected
331 /// by transformations (e.g., "Does not transform", given VEC_INVARIANT).
332 static std::string vecTypeDescription(VecType);
333 static VecType stringToVecType(const std::string&);
334
335 /// @name Metadata
336 /// @{
337
338 /// Return @c true if this grid's voxel values are in world space and should be
339 /// affected by transformations, @c false if they are in local space and should
340 /// not be affected by transformations.
341 bool isInWorldSpace() const;
342 /// Specify whether this grid's voxel values are in world space or in local space.
343 void setIsInWorldSpace(bool);
344
345 /// @}
346
347 // Standard metadata field names
348 // (These fields should normally not be accessed directly, but rather
349 // via the accessor methods above, when available.)
350 // Note: Visual C++ requires these declarations to be separate statements.
351 static const char* const META_GRID_CLASS;
352 static const char* const META_GRID_CREATOR;
353 static const char* const META_GRID_NAME;
354 static const char* const META_SAVE_HALF_FLOAT;
355 static const char* const META_IS_LOCAL_SPACE;
356 static const char* const META_VECTOR_TYPE;
357 static const char* const META_FILE_BBOX_MIN;
358 static const char* const META_FILE_BBOX_MAX;
359 static const char* const META_FILE_COMPRESSION;
360 static const char* const META_FILE_MEM_BYTES;
361 static const char* const META_FILE_VOXEL_COUNT;
362 static const char* const META_FILE_DELAYED_LOAD;
363
364
365 /// @name Statistics
366 /// @{
367
368 /// Return the number of active voxels.
369 virtual Index64 activeVoxelCount() const = 0;
370
371 /// Return the axis-aligned bounding box of all active voxels. If
372 /// the grid is empty a default bbox is returned.
373 virtual CoordBBox evalActiveVoxelBoundingBox() const = 0;
374
375 /// Return the dimensions of the axis-aligned bounding box of all active voxels.
376 virtual Coord evalActiveVoxelDim() const = 0;
377
378 /// Return the number of bytes of memory used by this grid.
379 virtual Index64 memUsage() const = 0;
380
381 /// @brief Add metadata to this grid comprising the current values
382 /// of statistics like the active voxel count and bounding box.
383 /// @note This metadata is not automatically kept up-to-date with
384 /// changes to this grid.
385 void addStatsMetadata();
386 /// @brief Return a new MetaMap containing just the metadata that
387 /// was added to this grid with @vdblink::GridBase::addStatsMetadata()
388 /// addStatsMetadata@endlink.
389 /// @details If @vdblink::GridBase::addStatsMetadata() addStatsMetadata@endlink
390 /// was never called on this grid, return an empty MetaMap.
391 MetaMap::Ptr getStatsMetadata() const;
392
393 /// @}
394
395
396 /// @name Transform
397 /// @{
398
399 //@{
400 /// @brief Return a pointer to this grid's transform, which might be
401 /// shared with other grids.
402 math::Transform::Ptr transformPtr() { return mTransform; }
403 math::Transform::ConstPtr transformPtr() const { return mTransform; }
404 math::Transform::ConstPtr constTransformPtr() const { return mTransform; }
405 //@}
406 //@{
407 /// @brief Return a reference to this grid's transform, which might be
408 /// shared with other grids.
409 /// @note Calling @vdblink::GridBase::setTransform() setTransform@endlink
410 /// on this grid invalidates all references previously returned by this method.
411 math::Transform& transform() { return *mTransform; }
412 const math::Transform& transform() const { return *mTransform; }
413 const math::Transform& constTransform() const { return *mTransform; }
414 //@}
415
416 /// @}
417
418 /// @name Transform
419 /// @{
420
421 /// @brief Associate the given transform with this grid, in place of
422 /// its existing transform.
423 /// @throw ValueError if the transform pointer is null
424 /// @note Invalidates all references previously returned by
425 /// @vdblink::GridBase::transform() transform@endlink
426 /// or @vdblink::GridBase::constTransform() constTransform@endlink.
427 void setTransform(math::Transform::Ptr);
428
429 /// Return the size of this grid's voxels.
430 Vec3d voxelSize() const { return transform().voxelSize(); }
431 /// @brief Return the size of this grid's voxel at position (x, y, z).
432 /// @note Frustum and perspective transforms have position-dependent voxel size.
433 Vec3d voxelSize(const Vec3d& xyz) const { return transform().voxelSize(xyz); }
434 /// Return true if the voxels in world space are uniformly sized cubes
435 bool hasUniformVoxels() const { return mTransform->hasUniformScale(); }
436 /// Apply this grid's transform to the given coordinates.
437 Vec3d indexToWorld(const Vec3d& xyz) const { return transform().indexToWorld(xyz); }
438 /// Apply this grid's transform to the given coordinates.
439 Vec3d indexToWorld(const Coord& ijk) const { return transform().indexToWorld(ijk); }
440 /// Apply the inverse of this grid's transform to the given coordinates.
441 Vec3d worldToIndex(const Vec3d& xyz) const { return transform().worldToIndex(xyz); }
442
443 /// @}
444
445
446 /// @name I/O
447 /// @{
448
449 /// @brief Read the grid topology from a stream.
450 /// This will read only the grid structure, not the actual data buffers.
451 virtual void readTopology(std::istream&) = 0;
452 /// @brief Write the grid topology to a stream.
453 /// This will write only the grid structure, not the actual data buffers.
454 virtual void writeTopology(std::ostream&) const = 0;
455
456 /// Read all data buffers for this grid.
457 virtual void readBuffers(std::istream&) = 0;
458 /// Read all of this grid's data buffers that intersect the given index-space bounding box.
459 virtual void readBuffers(std::istream&, const CoordBBox&) = 0;
460 /// @brief Read all of this grid's data buffers that are not yet resident in memory
461 /// (because delayed loading is in effect).
462 /// @details If this grid was read from a memory-mapped file, this operation
463 /// disconnects the grid from the file.
464 /// @sa io::File::open, io::MappedFile
465 virtual void readNonresidentBuffers() const = 0;
466 /// Write out all data buffers for this grid.
467 virtual void writeBuffers(std::ostream&) const = 0;
468
469 /// Read in the transform for this grid.
470 void readTransform(std::istream& is) { transform().read(is); }
471 /// Write out the transform for this grid.
472 void writeTransform(std::ostream& os) const { transform().write(os); }
473
474 /// Output a human-readable description of this grid.
475 virtual void print(std::ostream& = std::cout, int verboseLevel = 1) const = 0;
476
477 /// @}
478
479
480 protected:
481 /// @brief Initialize with an identity linear transform.
482 GridBase(): mTransform(math::Transform::createLinearTransform()) {}
483
484 /// @brief Initialize with metadata and a transform.
485 /// @throw ValueError if the transform pointer is null
486 GridBase(const MetaMap& meta, math::Transform::Ptr xform);
487
488 /// @brief Deep copy another grid's metadata and transform.
489 GridBase(const GridBase& other): MetaMap(other), mTransform(other.mTransform->copy()) {}
490
491 /// @brief Copy another grid's metadata but share its transform.
492 GridBase(GridBase& other, ShallowCopy): MetaMap(other), mTransform(other.mTransform) {}
493
494 /// Register a grid type along with a factory function.
495 static void registerGrid(const Name& type, GridFactory);
496 /// Remove a grid type from the registry.
497 static void unregisterGrid(const Name& type);
498
499
500 private:
501 math::Transform::Ptr mTransform;
502}; // class GridBase
503
504
505////////////////////////////////////////
506
507
508 using GridPtrVec = std::vector<GridBase::Ptr>;
509 using GridPtrVecIter = GridPtrVec::iterator;
510 using GridPtrVecCIter = GridPtrVec::const_iterator;
511 using GridPtrVecPtr = SharedPtr<GridPtrVec>;
512
513 using GridCPtrVec = std::vector<GridBase::ConstPtr>;
514 using GridCPtrVecIter = GridCPtrVec::iterator;
515 using GridCPtrVecCIter = GridCPtrVec::const_iterator;
516 using GridCPtrVecPtr = SharedPtr<GridCPtrVec>;
517
518 using GridPtrSet = std::set<GridBase::Ptr>;
519 using GridPtrSetIter = GridPtrSet::iterator;
520 using GridPtrSetCIter = GridPtrSet::const_iterator;
521 using GridPtrSetPtr = SharedPtr<GridPtrSet>;
522
523 using GridCPtrSet = std::set<GridBase::ConstPtr>;
524 using GridCPtrSetIter = GridCPtrSet::iterator;
525 using GridCPtrSetCIter = GridCPtrSet::const_iterator;
526 using GridCPtrSetPtr = SharedPtr<GridCPtrSet>;
527
528
529/// @brief Predicate functor that returns @c true for grids that have a specified name
530 struct OPENVDB_API GridNamePred
531{
532 GridNamePred(const Name& _name): name(_name) {}
533 bool operator()(const GridBase::ConstPtr& g) const { return g && g->getName() == name; }
534 Name name;
535};
536
537/// Return the first grid in the given container whose name is @a name.
538 template<typename GridPtrContainerT>
539 inline typename GridPtrContainerT::value_type
540 findGridByName(const GridPtrContainerT& container, const Name& name)
541{
542 using GridPtrT = typename GridPtrContainerT::value_type;
543 typename GridPtrContainerT::const_iterator it =
544 std::find_if(container.begin(), container.end(), GridNamePred(name));
545 return (it == container.end() ? GridPtrT() : *it);
546}
547
548/// Return the first grid in the given map whose name is @a name.
549 template<typename KeyT, typename GridPtrT>
550 inline GridPtrT
551 findGridByName(const std::map<KeyT, GridPtrT>& container, const Name& name)
552{
553 using GridPtrMapT = std::map<KeyT, GridPtrT>;
554 for (typename GridPtrMapT::const_iterator it = container.begin(), end = container.end();
555 it != end; ++it)
556 {
557 const GridPtrT& grid = it->second;
558 if (grid && grid->getName() == name) return grid;
559 }
560 return GridPtrT();
561}
562//@}
563
564
565////////////////////////////////////////
566
567
568/// @brief Container class that associates a tree with a transform and metadata
569 template<typename _TreeType>
570 class Grid: public GridBase
571{
572 public:
573 using Ptr = SharedPtr<Grid>;
574 using ConstPtr = SharedPtr<const Grid>;
575
576 using TreeType = _TreeType;
577 using TreePtrType = typename _TreeType::Ptr;
578 using ConstTreePtrType = typename _TreeType::ConstPtr;
579 using ValueType = typename _TreeType::ValueType;
580 using BuildType = typename _TreeType::BuildType;
581
582 using ValueOnIter = typename _TreeType::ValueOnIter;
583 using ValueOnCIter = typename _TreeType::ValueOnCIter;
584 using ValueOffIter = typename _TreeType::ValueOffIter;
585 using ValueOffCIter = typename _TreeType::ValueOffCIter;
586 using ValueAllIter = typename _TreeType::ValueAllIter;
587 using ValueAllCIter = typename _TreeType::ValueAllCIter;
588
589 using Accessor = typename tree::ValueAccessor<_TreeType, true>;
590 using ConstAccessor = typename tree::ValueAccessor<const _TreeType, true>;
591 using UnsafeAccessor = typename tree::ValueAccessor<_TreeType, false>;
592 using ConstUnsafeAccessor = typename tree::ValueAccessor<const _TreeType, false>;
593
594 /// @brief ValueConverter<T>::Type is the type of a grid having the same
595 /// hierarchy as this grid but a different value type, T.
596 ///
597 /// For example, FloatGrid::ValueConverter<double>::Type is equivalent to DoubleGrid.
598 /// @note If the source grid type is a template argument, it might be necessary
599 /// to write "typename SourceGrid::template ValueConverter<T>::Type".
600 template<typename OtherValueType>
601 struct ValueConverter {
602 using Type = Grid<typename TreeType::template ValueConverter<OtherValueType>::Type>;
603 };
604
605 /// Return a new grid with the given background value.
606 static Ptr create(const ValueType& background);
607 /// Return a new grid with background value zero.
608 static Ptr create();
609 /// @brief Return a new grid that contains the given tree.
610 /// @throw ValueError if the tree pointer is null
611 static Ptr create(TreePtrType);
612 /// @brief Return a new, empty grid with the same transform and metadata as the
613 /// given grid and with background value zero.
614 static Ptr create(const GridBase& other);
615
616
617 /// Construct a new grid with background value zero.
618 Grid();
619 /// Construct a new grid with the given background value.
620 explicit Grid(const ValueType& background);
621 /// @brief Construct a new grid that shares the given tree and associates with it
622 /// an identity linear transform.
623 /// @throw ValueError if the tree pointer is null
624 explicit Grid(TreePtrType);
625 /// Deep copy another grid's metadata, transform and tree.
626 Grid(const Grid&);
627 /// @brief Deep copy the metadata, transform and tree of another grid whose tree
628 /// configuration is the same as this grid's but whose value type is different.
629 /// Cast the other grid's values to this grid's value type.
630 /// @throw TypeError if the other grid's tree configuration doesn't match this grid's
631 /// or if this grid's ValueType is not constructible from the other grid's ValueType.
632 template<typename OtherTreeType>
633 explicit Grid(const Grid<OtherTreeType>&);
634 /// Deep copy another grid's metadata and transform, but share its tree.
635 Grid(Grid&, ShallowCopy);
636 /// @brief Deep copy another grid's metadata and transform, but construct a new tree
637 /// with background value zero.
638 explicit Grid(const GridBase&);
639
640 ~Grid() override {}
641
642 /// Disallow assignment, since it wouldn't be obvious whether the copy is deep or shallow.
643 Grid& operator=(const Grid&) = delete;
644
645 /// @name Copying
646 /// @{
647
648 /// @brief Return a new grid of the same type as this grid whose metadata and
649 /// transform are deep copies of this grid's and whose tree is shared with this grid.
650 Ptr copy();
651 /// @brief Return a new grid of the same type as this grid whose metadata and
652 /// transform are deep copies of this grid's and whose tree is shared with this grid.
653 ConstPtr copy() const;
654 /// @brief Return a new grid of the same type as this grid whose metadata and
655 /// transform are deep copies of this grid's and whose tree is default-constructed.
656 Ptr copyWithNewTree() const;
657
658 /// @brief Return a new grid of the same type as this grid whose metadata is a
659 /// deep copy of this grid's and whose tree and transform are shared with this grid.
660 GridBase::Ptr copyGrid() override;
661 /// @brief Return a new grid of the same type as this grid whose metadata is a
662 /// deep copy of this grid's and whose tree and transform are shared with this grid.
663 GridBase::ConstPtr copyGrid() const override;
664 /// @brief Return a new grid of the same type as this grid whose metadata and
665 /// transform are deep copies of this grid's and whose tree is default-constructed.
666 GridBase::Ptr copyGridWithNewTree() const override;
667 //@}
668
669 /// @name Copying
670 /// @{
671
672 /// @brief Return a new grid of the same type as this grid whose tree and transform
673 /// is shared with this grid and whose metadata is provided as an argument.
674 ConstPtr copyReplacingMetadata(const MetaMap& meta) const;
675 /// @brief Return a new grid of the same type as this grid whose tree is shared with
676 /// this grid, whose metadata is a deep copy of this grid's and whose transform is
677 /// provided as an argument.
678 /// @throw ValueError if the transform pointer is null
679 ConstPtr copyReplacingTransform(math::Transform::Ptr xform) const;
680 /// @brief Return a new grid of the same type as this grid whose tree is shared with
681 /// this grid and whose transform and metadata are provided as arguments.
682 /// @throw ValueError if the transform pointer is null
683 ConstPtr copyReplacingMetadataAndTransform(const MetaMap& meta,
684 math::Transform::Ptr xform) const;
685
686 /// @brief Return a new grid of the same type as this grid whose tree and transform
687 /// is shared with this grid and whose metadata is provided as an argument.
688 GridBase::ConstPtr copyGridReplacingMetadata(const MetaMap& meta) const override;
689 /// @brief Return a new grid of the same type as this grid whose tree is shared with
690 /// this grid, whose metadata is a deep copy of this grid's and whose transform is
691 /// provided as an argument.
692 /// @throw ValueError if the transform pointer is null
693 GridBase::ConstPtr copyGridReplacingTransform(math::Transform::Ptr xform) const override;
694 /// @brief Return a new grid of the same type as this grid whose tree is shared with
695 /// this grid and whose transform and metadata are provided as arguments.
696 /// @throw ValueError if the transform pointer is null
697 GridBase::ConstPtr copyGridReplacingMetadataAndTransform(const MetaMap& meta,
698 math::Transform::Ptr xform) const override;
699
700 /// @brief Return a new grid whose metadata, transform and tree are deep copies of this grid's.
701 Ptr deepCopy() const { return Ptr(new Grid(*this)); }
702 /// @brief Return a new grid whose metadata, transform and tree are deep copies of this grid's.
703 GridBase::Ptr deepCopyGrid() const override { return this->deepCopy(); }
704
705 //@}
706
707
708 /// Return the name of this grid's type.
709 Name type() const override { return this->gridType(); }
710 /// Return the name of this type of grid.
711 static Name gridType() { return TreeType::treeType(); }
712
713 /// Return the name of the type of a voxel's value (e.g., "float" or "vec3d").
714 Name valueType() const override { return tree().valueType(); }
715
716
717 /// @name Voxel access
718 /// @{
719
720 /// @brief Return this grid's background value.
721 /// @note Use tools::changeBackground to efficiently modify the background value.
722 const ValueType& background() const { return mTree->background(); }
723
724 /// Return @c true if this grid contains only inactive background voxels.
725 bool empty() const override { return tree().empty(); }
726 /// Empty this grid, so that all voxels become inactive background voxels.
727 void clear() override { tree().clear(); }
728
729 /// @brief Return an accessor that provides random read and write access
730 /// to this grid's voxels.
731 /// @details The accessor is safe in the sense that it is registered with this grid's tree.
732 Accessor getAccessor() { return Accessor(tree()); }
733 /// @brief Return an unsafe accessor that provides random read and write access
734 /// to this grid's voxels.
735 /// @details The accessor is unsafe in the sense that it is not registered
736 /// with this grid's tree. In some rare cases this can give a performance advantage
737 /// over a registered accessor, but it is unsafe if the tree topology is modified.
738 /// @warning Only use this method if you're an expert and know the
739 /// risks of using an unregistered accessor (see tree/ValueAccessor.h)
740 UnsafeAccessor getUnsafeAccessor() { return UnsafeAccessor(tree()); }
741 /// Return an accessor that provides random read-only access to this grid's voxels.
742 ConstAccessor getAccessor() const { return ConstAccessor(tree()); }
743 /// Return an accessor that provides random read-only access to this grid's voxels.
744 ConstAccessor getConstAccessor() const { return ConstAccessor(tree()); }
745 /// @brief Return an unsafe accessor that provides random read-only access
746 /// to this grid's voxels.
747 /// @details The accessor is unsafe in the sense that it is not registered
748 /// with this grid's tree. In some rare cases this can give a performance advantage
749 /// over a registered accessor, but it is unsafe if the tree topology is modified.
750 /// @warning Only use this method if you're an expert and know the
751 /// risks of using an unregistered accessor (see tree/ValueAccessor.h)
752 ConstUnsafeAccessor getConstUnsafeAccessor() const { return ConstUnsafeAccessor(tree()); }
753
754 /// Return an iterator over all of this grid's active values (tile and voxel).
755 ValueOnIter beginValueOn() { return tree().beginValueOn(); }
756 /// Return an iterator over all of this grid's active values (tile and voxel).
757 ValueOnCIter beginValueOn() const { return tree().cbeginValueOn(); }
758 /// Return an iterator over all of this grid's active values (tile and voxel).
759 ValueOnCIter cbeginValueOn() const { return tree().cbeginValueOn(); }
760 /// Return an iterator over all of this grid's inactive values (tile and voxel).
761 ValueOffIter beginValueOff() { return tree().beginValueOff(); }
762 /// Return an iterator over all of this grid's inactive values (tile and voxel).
763 ValueOffCIter beginValueOff() const { return tree().cbeginValueOff(); }
764 /// Return an iterator over all of this grid's inactive values (tile and voxel).
765 ValueOffCIter cbeginValueOff() const { return tree().cbeginValueOff(); }
766 /// Return an iterator over all of this grid's values (tile and voxel).
767 ValueAllIter beginValueAll() { return tree().beginValueAll(); }
768 /// Return an iterator over all of this grid's values (tile and voxel).
769 ValueAllCIter beginValueAll() const { return tree().cbeginValueAll(); }
770 /// Return an iterator over all of this grid's values (tile and voxel).
771 ValueAllCIter cbeginValueAll() const { return tree().cbeginValueAll(); }
772
773 /// @}
774
775 /// @name Tools
776 /// @{
777
778 /// @brief Set all voxels within a given axis-aligned box to a constant value.
779 /// @param bbox inclusive coordinates of opposite corners of an axis-aligned box
780 /// @param value the value to which to set voxels within the box
781 /// @param active if true, mark voxels within the box as active,
782 /// otherwise mark them as inactive
783 /// @note This operation generates a sparse, but not always optimally sparse,
784 /// representation of the filled box. Follow fill operations with a prune()
785 /// operation for optimal sparseness.
786 void sparseFill(const CoordBBox& bbox, const ValueType& value, bool active = true);
787 /// @brief Set all voxels within a given axis-aligned box to a constant value.
788 /// @param bbox inclusive coordinates of opposite corners of an axis-aligned box
789 /// @param value the value to which to set voxels within the box
790 /// @param active if true, mark voxels within the box as active,
791 /// otherwise mark them as inactive
792 /// @note This operation generates a sparse, but not always optimally sparse,
793 /// representation of the filled box. Follow fill operations with a prune()
794 /// operation for optimal sparseness.
795 void fill(const CoordBBox& bbox, const ValueType& value, bool active = true);
796
797 /// @brief Set all voxels within a given axis-aligned box to a constant value
798 /// and ensure that those voxels are all represented at the leaf level.
799 /// @param bbox inclusive coordinates of opposite corners of an axis-aligned box.
800 /// @param value the value to which to set voxels within the box.
801 /// @param active if true, mark voxels within the box as active,
802 /// otherwise mark them as inactive.
803 void denseFill(const CoordBBox& bbox, const ValueType& value, bool active = true);
804
805 /// Reduce the memory footprint of this grid by increasing its sparseness.
806 void pruneGrid(float tolerance = 0.0) override;
807
808 /// @brief Clip this grid to the given index-space bounding box.
809 /// @details Voxels that lie outside the bounding box are set to the background.
810 /// @warning Clipping a level set will likely produce a grid that is
811 /// no longer a valid level set.
812 void clip(const CoordBBox&) override;
813
814 /// @brief Efficiently merge another grid into this grid using one of several schemes.
815 /// @details This operation is primarily intended to combine grids that are mostly
816 /// non-overlapping (for example, intermediate grids from computations that are
817 /// parallelized across disjoint regions of space).
818 /// @warning This operation always empties the other grid.
819 void merge(Grid& other, MergePolicy policy = MERGE_ACTIVE_STATES);
820
821 /// @brief Union this grid's set of active values with the active values
822 /// of the other grid, whose value type may be different.
823 /// @details The resulting state of a value is active if the corresponding value
824 /// was already active OR if it is active in the other grid. Also, a resulting
825 /// value maps to a voxel if the corresponding value already mapped to a voxel
826 /// OR if it is a voxel in the other grid. Thus, a resulting value can only
827 /// map to a tile if the corresponding value already mapped to a tile
828 /// AND if it is a tile value in the other grid.
829 ///
830 /// @note This operation modifies only active states, not values.
831 /// Specifically, active tiles and voxels in this grid are not changed, and
832 /// tiles or voxels that were inactive in this grid but active in the other grid
833 /// are marked as active in this grid but left with their original values.
834 template<typename OtherTreeType>
835 void topologyUnion(const Grid<OtherTreeType>& other);
836
837 /// @brief Intersect this grid's set of active values with the active values
838 /// of the other grid, whose value type may be different.
839 /// @details The resulting state of a value is active only if the corresponding
840 /// value was already active AND if it is active in the other tree. Also, a
841 /// resulting value maps to a voxel if the corresponding value
842 /// already mapped to an active voxel in either of the two grids
843 /// and it maps to an active tile or voxel in the other grid.
844 ///
845 /// @note This operation can delete branches of this grid that overlap with
846 /// inactive tiles in the other grid. Also, because it can deactivate voxels,
847 /// it can create leaf nodes with no active values. Thus, it is recommended
848 /// to prune this grid after calling this method.
849 template<typename OtherTreeType>
850 void topologyIntersection(const Grid<OtherTreeType>& other);
851
852 /// @brief Difference this grid's set of active values with the active values
853 /// of the other grid, whose value type may be different.
854 /// @details After this method is called, voxels in this grid will be active
855 /// only if they were active to begin with and if the corresponding voxels
856 /// in the other grid were inactive.
857 ///
858 /// @note This operation can delete branches of this grid that overlap with
859 /// active tiles in the other grid. Also, because it can deactivate voxels,
860 /// it can create leaf nodes with no active values. Thus, it is recommended
861 /// to prune this grid after calling this method.
862 template<typename OtherTreeType>
863 void topologyDifference(const Grid<OtherTreeType>& other);
864
865 /// @}
866
867 /// @name Statistics
868 /// @{
869
870 /// Return the number of active voxels.
871 Index64 activeVoxelCount() const override { return tree().activeVoxelCount(); }
872 /// Return the axis-aligned bounding box of all active voxels.
873 CoordBBox evalActiveVoxelBoundingBox() const override;
874 /// Return the dimensions of the axis-aligned bounding box of all active voxels.
875 Coord evalActiveVoxelDim() const override;
876 /// Return the minimum and maximum active values in this grid.
877 OPENVDB_DEPRECATED_MESSAGE("Switch from grid->evalMinMax(minVal, maxVal) to \
878 tools::minMax(grid->tree()). Use threaded = false for serial execution")
879 void evalMinMax(ValueType& minVal, ValueType& maxVal) const;
880
881 /// Return the number of bytes of memory used by this grid.
882 /// @todo Add transform().memUsage()
883 Index64 memUsage() const override { return tree().memUsage(); }
884
885 /// @}
886
887
888 /// @name Tree
889 /// @{
890
891 //@{
892 /// @brief Return a pointer to this grid's tree, which might be
893 /// shared with other grids. The pointer is guaranteed to be non-null.
894 TreePtrType treePtr() { return mTree; }
895 ConstTreePtrType treePtr() const { return mTree; }
896 ConstTreePtrType constTreePtr() const { return mTree; }
897 TreeBase::ConstPtr constBaseTreePtr() const override { return mTree; }
898 //@}
899 /// @brief Return true if tree is not shared with another grid.
900 /// @note This is a virtual function with ABI=8
901 bool isTreeUnique() const final;
902
903 //@{
904 /// @brief Return a reference to this grid's tree, which might be
905 /// shared with other grids.
906 /// @note Calling setTree() on this grid invalidates all references
907 /// previously returned by this method.
908 TreeType& tree() { return *mTree; }
909 const TreeType& tree() const { return *mTree; }
910 const TreeType& constTree() const { return *mTree; }
911 //@}
912
913 /// @}
914
915 /// @name Tree
916 /// @{
917
918 /// @brief Associate the given tree with this grid, in place of its existing tree.
919 /// @throw ValueError if the tree pointer is null
920 /// @throw TypeError if the tree is not of type TreeType
921 /// @note Invalidates all references previously returned by baseTree(),
922 /// constBaseTree(), tree() or constTree().
923 void setTree(TreeBase::Ptr) override;
924
925 /// @brief Associate a new, empty tree with this grid, in place of its existing tree.
926 /// @note The new tree has the same background value as the existing tree.
927 void newTree() override;
928
929 /// @}
930
931
932 /// @name I/O
933 /// @{
934
935 /// @brief Read the grid topology from a stream.
936 /// This will read only the grid structure, not the actual data buffers.
937 void readTopology(std::istream&) override;
938 /// @brief Write the grid topology to a stream.
939 /// This will write only the grid structure, not the actual data buffers.
940 void writeTopology(std::ostream&) const override;
941
942 /// Read all data buffers for this grid.
943 void readBuffers(std::istream&) override;
944 /// Read all of this grid's data buffers that intersect the given index-space bounding box.
945 void readBuffers(std::istream&, const CoordBBox&) override;
946 /// @brief Read all of this grid's data buffers that are not yet resident in memory
947 /// (because delayed loading is in effect).
948 /// @details If this grid was read from a memory-mapped file, this operation
949 /// disconnects the grid from the file.
950 /// @sa io::File::open, io::MappedFile
951 void readNonresidentBuffers() const override;
952 /// Write out all data buffers for this grid.
953 void writeBuffers(std::ostream&) const override;
954
955 /// Output a human-readable description of this grid.
956 void print(std::ostream& = std::cout, int verboseLevel = 1) const override;
957
958 /// @}
959
960 /// @brief Return @c true if grids of this type require multiple I/O passes
961 /// to read and write data buffers.
962 /// @sa HasMultiPassIO
963 static inline bool hasMultiPassIO();
964
965
966 /// @name Registry
967 /// @{
968
969 /// Return @c true if this grid type is registered.
970 static bool isRegistered() { return GridBase::isRegistered(Grid::gridType()); }
971 /// Register this grid type along with a factory function.
972 static void registerGrid() { GridBase::registerGrid(Grid::gridType(), Grid::factory); }
973 /// Remove this grid type from the registry.
974 static void unregisterGrid() { GridBase::unregisterGrid(Grid::gridType()); }
975
976 /// @}
977
978
979 private:
980 /// Deep copy metadata, but share tree and transform.
981 Grid(TreePtrType tree, const MetaMap& meta, math::Transform::Ptr xform);
982
983 /// Helper function for use with registerGrid()
984 static GridBase::Ptr factory() { return Grid::create(); }
985
986 TreePtrType mTree;
987}; // class Grid
988
989
990////////////////////////////////////////
991
992
993/// @brief Cast a generic grid pointer to a pointer to a grid of a concrete class.
994///
995/// Return a null pointer if the input pointer is null or if it
996/// points to a grid that is not of type @c GridType.
997///
998/// @note Calling gridPtrCast<GridType>(grid) is equivalent to calling
999/// GridBase::grid<GridType>(grid).
1000 template<typename GridType>
1001 inline typename GridType::Ptr
1002 gridPtrCast(const GridBase::Ptr& grid)
1003{
1004 return GridBase::grid<GridType>(grid);
1005}
1006
1007
1008/// @brief Cast a generic const grid pointer to a const pointer to a grid
1009/// of a concrete class.
1010///
1011/// Return a null pointer if the input pointer is null or if it
1012/// points to a grid that is not of type @c GridType.
1013///
1014/// @note Calling gridConstPtrCast<GridType>(grid) is equivalent to calling
1015/// GridBase::constGrid<GridType>(grid).
1016 template<typename GridType>
1017 inline typename GridType::ConstPtr
1018 gridConstPtrCast(const GridBase::ConstPtr& grid)
1019{
1020 return GridBase::constGrid<GridType>(grid);
1021}
1022
1023
1024////////////////////////////////////////
1025
1026
1027/// @{
1028/// @brief Return a pointer to a deep copy of the given grid, provided that
1029/// the grid's concrete type is @c GridType.
1030///
1031/// Return a null pointer if the input pointer is null or if it
1032/// points to a grid that is not of type @c GridType.
1033 template<typename GridType>
1034 inline typename GridType::Ptr
1035 deepCopyTypedGrid(const GridBase::ConstPtr& grid)
1036{
1037 if (!grid || !grid->isType<GridType>()) return typename GridType::Ptr();
1038 return gridPtrCast<GridType>(grid->deepCopyGrid());
1039}
1040
1041
1042 template<typename GridType>
1043 inline typename GridType::Ptr
1044 deepCopyTypedGrid(const GridBase& grid)
1045{
1046 if (!grid.isType<GridType>()) return typename GridType::Ptr();
1047 return gridPtrCast<GridType>(grid.deepCopyGrid());
1048}
1049/// @}
1050
1051
1052////////////////////////////////////////
1053
1054
1055//@{
1056/// @brief This adapter allows code that is templated on a Tree type to
1057/// accept either a Tree type or a Grid type.
1058 template<typename _TreeType>
1059 struct TreeAdapter
1060{
1061 using TreeType = _TreeType;
1062 using NonConstTreeType = typename std::remove_const<TreeType>::type;
1063 using TreePtrType = typename TreeType::Ptr;
1064 using ConstTreePtrType = typename TreeType::ConstPtr;
1065 using NonConstTreePtrType = typename NonConstTreeType::Ptr;
1066 using GridType = Grid<TreeType>;
1067 using NonConstGridType = Grid<NonConstTreeType>;
1068 using GridPtrType = typename GridType::Ptr;
1069 using NonConstGridPtrType = typename NonConstGridType::Ptr;
1070 using ConstGridPtrType = typename GridType::ConstPtr;
1071 using ValueType = typename TreeType::ValueType;
1072 using AccessorType = typename tree::ValueAccessor<TreeType>;
1073 using ConstAccessorType = typename tree::ValueAccessor<const TreeType>;
1074 using NonConstAccessorType = typename tree::ValueAccessor<NonConstTreeType>;
1075
1076 static TreeType& tree(TreeType& t) { return t; }
1077 static TreeType& tree(GridType& g) { return g.tree(); }
1078 static const TreeType& tree(const TreeType& t) { return t; }
1079 static const TreeType& tree(const GridType& g) { return g.tree(); }
1080 static const TreeType& constTree(TreeType& t) { return t; }
1081 static const TreeType& constTree(GridType& g) { return g.constTree(); }
1082 static const TreeType& constTree(const TreeType& t) { return t; }
1083 static const TreeType& constTree(const GridType& g) { return g.constTree(); }
1084};
1085
1086
1087/// Partial specialization for Grid types
1088 template<typename _TreeType>
1089 struct TreeAdapter<Grid<_TreeType> >
1090{
1091 using TreeType = _TreeType;
1092 using NonConstTreeType = typename std::remove_const<TreeType>::type;
1093 using TreePtrType = typename TreeType::Ptr;
1094 using ConstTreePtrType = typename TreeType::ConstPtr;
1095 using NonConstTreePtrType = typename NonConstTreeType::Ptr;
1096 using GridType = Grid<TreeType>;
1097 using NonConstGridType = Grid<NonConstTreeType>;
1098 using GridPtrType = typename GridType::Ptr;
1099 using NonConstGridPtrType = typename NonConstGridType::Ptr;
1100 using ConstGridPtrType = typename GridType::ConstPtr;
1101 using ValueType = typename TreeType::ValueType;
1102 using AccessorType = typename tree::ValueAccessor<TreeType>;
1103 using ConstAccessorType = typename tree::ValueAccessor<const TreeType>;
1104 using NonConstAccessorType = typename tree::ValueAccessor<NonConstTreeType>;
1105
1106 static TreeType& tree(TreeType& t) { return t; }
1107 static TreeType& tree(GridType& g) { return g.tree(); }
1108 static const TreeType& tree(const TreeType& t) { return t; }
1109 static const TreeType& tree(const GridType& g) { return g.tree(); }
1110 static const TreeType& constTree(TreeType& t) { return t; }
1111 static const TreeType& constTree(GridType& g) { return g.constTree(); }
1112 static const TreeType& constTree(const TreeType& t) { return t; }
1113 static const TreeType& constTree(const GridType& g) { return g.constTree(); }
1114};
1115
1116/// Partial specialization for ValueAccessor types
1117 template<typename _TreeType>
1118 struct TreeAdapter<tree::ValueAccessor<_TreeType> >
1119{
1120 using TreeType = _TreeType;
1121 using NonConstTreeType = typename std::remove_const<TreeType>::type;
1122 using TreePtrType = typename TreeType::Ptr;
1123 using ConstTreePtrType = typename TreeType::ConstPtr;
1124 using NonConstTreePtrType = typename NonConstTreeType::Ptr;
1125 using GridType = Grid<TreeType>;
1126 using NonConstGridType = Grid<NonConstTreeType>;
1127 using GridPtrType = typename GridType::Ptr;
1128 using NonConstGridPtrType = typename NonConstGridType::Ptr;
1129 using ConstGridPtrType = typename GridType::ConstPtr;
1130 using ValueType = typename TreeType::ValueType;
1131 using AccessorType = typename tree::ValueAccessor<TreeType>;
1132 using ConstAccessorType = typename tree::ValueAccessor<const TreeType>;
1133 using NonConstAccessorType = typename tree::ValueAccessor<NonConstTreeType>;
1134
1135 static TreeType& tree(TreeType& t) { return t; }
1136 static TreeType& tree(GridType& g) { return g.tree(); }
1137 static TreeType& tree(AccessorType& a) { return a.tree(); }
1138 static const TreeType& tree(const TreeType& t) { return t; }
1139 static const TreeType& tree(const GridType& g) { return g.tree(); }
1140 static const TreeType& tree(const AccessorType& a) { return a.tree(); }
1141 static const TreeType& constTree(TreeType& t) { return t; }
1142 static const TreeType& constTree(GridType& g) { return g.constTree(); }
1143 static const TreeType& constTree(const TreeType& t) { return t; }
1144 static const TreeType& constTree(const GridType& g) { return g.constTree(); }
1145};
1146
1147//@}
1148
1149
1150////////////////////////////////////////
1151
1152
1153/// @brief Metafunction that specifies whether a given leaf node, tree, or grid type
1154/// requires multiple passes to read and write voxel data
1155/// @details Multi-pass I/O allows one to optimize the data layout of leaf nodes
1156/// for certain access patterns during delayed loading.
1157/// @sa io::MultiPass
1158 template<typename LeafNodeType>
1159 struct HasMultiPassIO {
1160 static const bool value = std::is_base_of<io::MultiPass, LeafNodeType>::value;
1161};
1162
1163// Partial specialization for Tree types
1164 template<typename RootNodeType>
1165 struct HasMultiPassIO<tree::Tree<RootNodeType>> {
1166 // A tree is multi-pass if its (root node's) leaf node type is multi-pass.
1167 static const bool value = HasMultiPassIO<typename RootNodeType::LeafNodeType>::value;
1168};
1169
1170// Partial specialization for Grid types
1171 template<typename TreeType>
1172 struct HasMultiPassIO<Grid<TreeType>> {
1173 // A grid is multi-pass if its tree's leaf node type is multi-pass.
1174 static const bool value = HasMultiPassIO<typename TreeType::LeafNodeType>::value;
1175};
1176
1177
1178////////////////////////////////////////
1179
1180 inline GridBase::GridBase(const MetaMap& meta, math::Transform::Ptr xform)
1181 : MetaMap(meta)
1182 , mTransform(xform)
1183{
1184 if (!xform) OPENVDB_THROW(ValueError, "Transform pointer is null");
1185}
1186
1187 template<typename GridType>
1188 inline typename GridType::Ptr
1189 GridBase::grid(const GridBase::Ptr& grid)
1190{
1191 // The string comparison on type names is slower than a dynamic pointer cast, but
1192 // it is safer when pointers cross DSO boundaries, as they do in many Houdini nodes.
1193 if (grid && grid->type() == GridType::gridType()) {
1194 return StaticPtrCast<GridType>(grid);
1195 }
1196 return typename GridType::Ptr();
1197}
1198
1199
1200 template<typename GridType>
1201 inline typename GridType::ConstPtr
1202 GridBase::grid(const GridBase::ConstPtr& grid)
1203{
1204 return ConstPtrCast<const GridType>(
1205 GridBase::grid<GridType>(ConstPtrCast<GridBase>(grid)));
1206}
1207
1208
1209 template<typename GridType>
1210 inline typename GridType::ConstPtr
1211 GridBase::constGrid(const GridBase::Ptr& grid)
1212{
1213 return ConstPtrCast<const GridType>(GridBase::grid<GridType>(grid));
1214}
1215
1216
1217 template<typename GridType>
1218 inline typename GridType::ConstPtr
1219 GridBase::constGrid(const GridBase::ConstPtr& grid)
1220{
1221 return ConstPtrCast<const GridType>(
1222 GridBase::grid<GridType>(ConstPtrCast<GridBase>(grid)));
1223}
1224
1225
1226 inline TreeBase::Ptr
1227 GridBase::baseTreePtr()
1228{
1229 return ConstPtrCast<TreeBase>(this->constBaseTreePtr());
1230}
1231
1232
1233 inline void
1234 GridBase::setTransform(math::Transform::Ptr xform)
1235{
1236 if (!xform) OPENVDB_THROW(ValueError, "Transform pointer is null");
1237 mTransform = xform;
1238}
1239
1240
1241////////////////////////////////////////
1242
1243
1244 template<typename TreeT>
1245 inline Grid<TreeT>::Grid(): mTree(new TreeType)
1246{
1247}
1248
1249
1250 template<typename TreeT>
1251 inline Grid<TreeT>::Grid(const ValueType &background): mTree(new TreeType(background))
1252{
1253}
1254
1255
1256 template<typename TreeT>
1257 inline Grid<TreeT>::Grid(TreePtrType tree): mTree(tree)
1258{
1259 if (!tree) OPENVDB_THROW(ValueError, "Tree pointer is null");
1260}
1261
1262
1263 template<typename TreeT>
1264 inline Grid<TreeT>::Grid(TreePtrType tree, const MetaMap& meta, math::Transform::Ptr xform):
1265 GridBase(meta, xform),
1266 mTree(tree)
1267{
1268 if (!tree) OPENVDB_THROW(ValueError, "Tree pointer is null");
1269}
1270
1271
1272 template<typename TreeT>
1273 inline Grid<TreeT>::Grid(const Grid& other):
1274 GridBase(other),
1275 mTree(StaticPtrCast<TreeType>(other.mTree->copy()))
1276{
1277}
1278
1279
1280 template<typename TreeT>
1281 template<typename OtherTreeType>
1282 inline Grid<TreeT>::Grid(const Grid<OtherTreeType>& other):
1283 GridBase(other),
1284 mTree(new TreeType(other.constTree()))
1285{
1286}
1287
1288
1289 template<typename TreeT>
1290 inline Grid<TreeT>::Grid(Grid& other, ShallowCopy):
1291 GridBase(other),
1292 mTree(other.mTree)
1293{
1294}
1295
1296
1297 template<typename TreeT>
1298 inline Grid<TreeT>::Grid(const GridBase& other):
1299 GridBase(other),
1300 mTree(new TreeType)
1301{
1302}
1303
1304
1305//static
1306 template<typename TreeT>
1307 inline typename Grid<TreeT>::Ptr
1308 Grid<TreeT>::create()
1309{
1310 return Grid::create(zeroVal<ValueType>());
1311}
1312
1313
1314//static
1315 template<typename TreeT>
1316 inline typename Grid<TreeT>::Ptr
1317 Grid<TreeT>::create(const ValueType& background)
1318{
1319 return Ptr(new Grid(background));
1320}
1321
1322
1323//static
1324 template<typename TreeT>
1325 inline typename Grid<TreeT>::Ptr
1326 Grid<TreeT>::create(TreePtrType tree)
1327{
1328 return Ptr(new Grid(tree));
1329}
1330
1331
1332//static
1333 template<typename TreeT>
1334 inline typename Grid<TreeT>::Ptr
1335 Grid<TreeT>::create(const GridBase& other)
1336{
1337 return Ptr(new Grid(other));
1338}
1339
1340
1341////////////////////////////////////////
1342
1343
1344 template<typename TreeT>
1345 inline typename Grid<TreeT>::ConstPtr
1346 Grid<TreeT>::copy() const
1347{
1348 return ConstPtr{new Grid{*const_cast<Grid*>(this), ShallowCopy{}}};
1349}
1350
1351
1352 template<typename TreeT>
1353 inline typename Grid<TreeT>::ConstPtr
1354 Grid<TreeT>::copyReplacingMetadata(const MetaMap& meta) const
1355{
1356 math::Transform::Ptr transformPtr = ConstPtrCast<math::Transform>(
1357 this->constTransformPtr());
1358 TreePtrType treePtr = ConstPtrCast<TreeT>(this->constTreePtr());
1359 return ConstPtr{new Grid<TreeT>{treePtr, meta, transformPtr}};
1360}
1361
1362 template<typename TreeT>
1363 inline typename Grid<TreeT>::ConstPtr
1364 Grid<TreeT>::copyReplacingTransform(math::Transform::Ptr xform) const
1365{
1366 return this->copyReplacingMetadataAndTransform(*this, xform);
1367}
1368
1369 template<typename TreeT>
1370 inline typename Grid<TreeT>::ConstPtr
1371 Grid<TreeT>::copyReplacingMetadataAndTransform(const MetaMap& meta,
1372 math::Transform::Ptr xform) const
1373{
1374 TreePtrType treePtr = ConstPtrCast<TreeT>(this->constTreePtr());
1375 return ConstPtr{new Grid<TreeT>{treePtr, meta, xform}};
1376}
1377
1378
1379 template<typename TreeT>
1380 inline typename Grid<TreeT>::Ptr
1381 Grid<TreeT>::copy()
1382{
1383 return Ptr{new Grid{*this, ShallowCopy{}}};
1384}
1385
1386
1387 template<typename TreeT>
1388 inline typename Grid<TreeT>::Ptr
1389 Grid<TreeT>::copyWithNewTree() const
1390{
1391 Ptr result{new Grid{*const_cast<Grid*>(this), ShallowCopy{}}};
1392 result->newTree();
1393 return result;
1394}
1395
1396
1397 template<typename TreeT>
1398 inline GridBase::Ptr
1399 Grid<TreeT>::copyGrid()
1400{
1401 return this->copy();
1402}
1403
1404 template<typename TreeT>
1405 inline GridBase::ConstPtr
1406 Grid<TreeT>::copyGrid() const
1407{
1408 return this->copy();
1409}
1410
1411 template<typename TreeT>
1412 inline GridBase::ConstPtr
1413 Grid<TreeT>::copyGridReplacingMetadata(const MetaMap& meta) const
1414{
1415 return this->copyReplacingMetadata(meta);
1416}
1417
1418 template<typename TreeT>
1419 inline GridBase::ConstPtr
1420 Grid<TreeT>::copyGridReplacingTransform(math::Transform::Ptr xform) const
1421{
1422 return this->copyReplacingTransform(xform);
1423}
1424
1425 template<typename TreeT>
1426 inline GridBase::ConstPtr
1427 Grid<TreeT>::copyGridReplacingMetadataAndTransform(const MetaMap& meta,
1428 math::Transform::Ptr xform) const
1429{
1430 return this->copyReplacingMetadataAndTransform(meta, xform);
1431}
1432
1433 template<typename TreeT>
1434 inline GridBase::Ptr
1435 Grid<TreeT>::copyGridWithNewTree() const
1436{
1437 return this->copyWithNewTree();
1438}
1439
1440
1441////////////////////////////////////////
1442
1443
1444 template<typename TreeT>
1445 inline bool
1446 Grid<TreeT>::isTreeUnique() const
1447{
1448 return mTree.use_count() == 1;
1449}
1450
1451
1452 template<typename TreeT>
1453 inline void
1454 Grid<TreeT>::setTree(TreeBase::Ptr tree)
1455{
1456 if (!tree) OPENVDB_THROW(ValueError, "Tree pointer is null");
1457 if (tree->type() != TreeType::treeType()) {
1458 OPENVDB_THROW(TypeError, "Cannot assign a tree of type "
1459 + tree->type() + " to a grid of type " + this->type());
1460 }
1461 mTree = StaticPtrCast<TreeType>(tree);
1462}
1463
1464
1465 template<typename TreeT>
1466 inline void
1467 Grid<TreeT>::newTree()
1468{
1469 mTree.reset(new TreeType(this->background()));
1470}
1471
1472
1473////////////////////////////////////////
1474
1475
1476 template<typename TreeT>
1477 inline void
1478 Grid<TreeT>::sparseFill(const CoordBBox& bbox, const ValueType& value, bool active)
1479{
1480 tree().sparseFill(bbox, value, active);
1481}
1482
1483
1484 template<typename TreeT>
1485 inline void
1486 Grid<TreeT>::fill(const CoordBBox& bbox, const ValueType& value, bool active)
1487{
1488 this->sparseFill(bbox, value, active);
1489}
1490
1491 template<typename TreeT>
1492 inline void
1493 Grid<TreeT>::denseFill(const CoordBBox& bbox, const ValueType& value, bool active)
1494{
1495 tree().denseFill(bbox, value, active);
1496}
1497
1498 template<typename TreeT>
1499 inline void
1500 Grid<TreeT>::pruneGrid(float tolerance)
1501{
1502 const auto value = math::cwiseAdd(zeroVal<ValueType>(), tolerance);
1503 this->tree().prune(static_cast<ValueType>(value));
1504}
1505
1506 template<typename TreeT>
1507 inline void
1508 Grid<TreeT>::clip(const CoordBBox& bbox)
1509{
1510 tree().clip(bbox);
1511}
1512
1513 template<typename TreeT>
1514 inline void
1515 Grid<TreeT>::merge(Grid& other, MergePolicy policy)
1516{
1517 tree().merge(other.tree(), policy);
1518}
1519
1520
1521 template<typename TreeT>
1522 template<typename OtherTreeType>
1523 inline void
1524 Grid<TreeT>::topologyUnion(const Grid<OtherTreeType>& other)
1525{
1526 tree().topologyUnion(other.tree());
1527}
1528
1529
1530 template<typename TreeT>
1531 template<typename OtherTreeType>
1532 inline void
1533 Grid<TreeT>::topologyIntersection(const Grid<OtherTreeType>& other)
1534{
1535 tree().topologyIntersection(other.tree());
1536}
1537
1538
1539 template<typename TreeT>
1540 template<typename OtherTreeType>
1541 inline void
1542 Grid<TreeT>::topologyDifference(const Grid<OtherTreeType>& other)
1543{
1544 tree().topologyDifference(other.tree());
1545}
1546
1547
1548////////////////////////////////////////
1549
1550
1551 template<typename TreeT>
1552 inline void
1553 Grid<TreeT>::evalMinMax(ValueType& minVal, ValueType& maxVal) const
1554{
1555 OPENVDB_NO_DEPRECATION_WARNING_BEGIN
1556 tree().evalMinMax(minVal, maxVal);
1557 OPENVDB_NO_DEPRECATION_WARNING_END
1558}
1559
1560
1561 template<typename TreeT>
1562 inline CoordBBox
1563 Grid<TreeT>::evalActiveVoxelBoundingBox() const
1564{
1565 CoordBBox bbox;
1566 tree().evalActiveVoxelBoundingBox(bbox);
1567 return bbox;
1568}
1569
1570
1571 template<typename TreeT>
1572 inline Coord
1573 Grid<TreeT>::evalActiveVoxelDim() const
1574{
1575 Coord dim;
1576 const bool nonempty = tree().evalActiveVoxelDim(dim);
1577 return (nonempty ? dim : Coord());
1578}
1579
1580
1581////////////////////////////////////////
1582
1583
1584/// @internal Consider using the stream tagging mechanism (see io::Archive)
1585/// to specify the float precision, but note that the setting is per-grid.
1586
1587 template<typename TreeT>
1588 inline void
1589 Grid<TreeT>::readTopology(std::istream& is)
1590{
1591 tree().readTopology(is, saveFloatAsHalf());
1592}
1593
1594
1595 template<typename TreeT>
1596 inline void
1597 Grid<TreeT>::writeTopology(std::ostream& os) const
1598{
1599 tree().writeTopology(os, saveFloatAsHalf());
1600}
1601
1602
1603 template<typename TreeT>
1604 inline void
1605 Grid<TreeT>::readBuffers(std::istream& is)
1606{
1607 if (!hasMultiPassIO() || (io::getFormatVersion(is) < OPENVDB_FILE_VERSION_MULTIPASS_IO)) {
1608 tree().readBuffers(is, saveFloatAsHalf());
1609 } else {
1610 uint16_t numPasses = 1;
1611 is.read(reinterpret_cast<char*>(&numPasses), sizeof(uint16_t));
1612 const io::StreamMetadata::Ptr meta = io::getStreamMetadataPtr(is);
1613 assert(bool(meta));
1614 for (uint16_t passIndex = 0; passIndex < numPasses; ++passIndex) {
1615 uint32_t pass = (uint32_t(numPasses) << 16) | uint32_t(passIndex);
1616 meta->setPass(pass);
1617 tree().readBuffers(is, saveFloatAsHalf());
1618 }
1619 }
1620}
1621
1622
1623/// @todo Refactor this and the readBuffers() above
1624/// once support for ABI 2 compatibility is dropped.
1625 template<typename TreeT>
1626 inline void
1627 Grid<TreeT>::readBuffers(std::istream& is, const CoordBBox& bbox)
1628{
1629 if (!hasMultiPassIO() || (io::getFormatVersion(is) < OPENVDB_FILE_VERSION_MULTIPASS_IO)) {
1630 tree().readBuffers(is, bbox, saveFloatAsHalf());
1631 } else {
1632 uint16_t numPasses = 1;
1633 is.read(reinterpret_cast<char*>(&numPasses), sizeof(uint16_t));
1634 const io::StreamMetadata::Ptr meta = io::getStreamMetadataPtr(is);
1635 assert(bool(meta));
1636 for (uint16_t passIndex = 0; passIndex < numPasses; ++passIndex) {
1637 uint32_t pass = (uint32_t(numPasses) << 16) | uint32_t(passIndex);
1638 meta->setPass(pass);
1639 tree().readBuffers(is, saveFloatAsHalf());
1640 }
1641 // Cannot clip inside readBuffers() when using multiple passes,
1642 // so instead clip afterwards.
1643 tree().clip(bbox);
1644 }
1645}
1646
1647
1648 template<typename TreeT>
1649 inline void
1650 Grid<TreeT>::readNonresidentBuffers() const
1651{
1652 tree().readNonresidentBuffers();
1653}
1654
1655
1656 template<typename TreeT>
1657 inline void
1658 Grid<TreeT>::writeBuffers(std::ostream& os) const
1659{
1660 if (!hasMultiPassIO()) {
1661 tree().writeBuffers(os, saveFloatAsHalf());
1662 } else {
1663 // Determine how many leaf buffer passes are required for this grid
1664 const io::StreamMetadata::Ptr meta = io::getStreamMetadataPtr(os);
1665 assert(bool(meta));
1666 uint16_t numPasses = 1;
1667 meta->setCountingPasses(true);
1668 meta->setPass(0);
1669 tree().writeBuffers(os, saveFloatAsHalf());
1670 numPasses = static_cast<uint16_t>(meta->pass());
1671 os.write(reinterpret_cast<const char*>(&numPasses), sizeof(uint16_t));
1672 meta->setCountingPasses(false);
1673
1674 // Save out the data blocks of the grid.
1675 for (uint16_t passIndex = 0; passIndex < numPasses; ++passIndex) {
1676 uint32_t pass = (uint32_t(numPasses) << 16) | uint32_t(passIndex);
1677 meta->setPass(pass);
1678 tree().writeBuffers(os, saveFloatAsHalf());
1679 }
1680 }
1681}
1682
1683
1684//static
1685 template<typename TreeT>
1686 inline bool
1687 Grid<TreeT>::hasMultiPassIO()
1688{
1689 return HasMultiPassIO<Grid>::value;
1690}
1691
1692
1693 template<typename TreeT>
1694 inline void
1695 Grid<TreeT>::print(std::ostream& os, int verboseLevel) const
1696{
1697 tree().print(os, verboseLevel);
1698
1699 if (metaCount() > 0) {
1700 os << "Additional metadata:" << std::endl;
1701 for (ConstMetaIterator it = beginMeta(), end = endMeta(); it != end; ++it) {
1702 os << " " << it->first;
1703 if (it->second) {
1704 const std::string value = it->second->str();
1705 if (!value.empty()) os << ": " << value;
1706 }
1707 os << "\n";
1708 }
1709 }
1710
1711 os << "Transform:" << std::endl;
1712 transform().print(os, /*indent=*/" ");
1713 os << std::endl;
1714}
1715
1716
1717////////////////////////////////////////
1718
1719
1720 template<typename GridType>
1721 inline typename GridType::Ptr
1722 createGrid(const typename GridType::ValueType& background)
1723{
1724 return GridType::create(background);
1725}
1726
1727
1728 template<typename GridType>
1729 inline typename GridType::Ptr
1730 createGrid()
1731{
1732 return GridType::create();
1733}
1734
1735
1736 template<typename TreePtrType>
1737 inline typename Grid<typename TreePtrType::element_type>::Ptr
1738 createGrid(TreePtrType tree)
1739{
1740 using TreeType = typename TreePtrType::element_type;
1741 return Grid<TreeType>::create(tree);
1742}
1743
1744
1745 template<typename GridType>
1746 typename GridType::Ptr
1747 createLevelSet(Real voxelSize, Real halfWidth)
1748{
1749 using ValueType = typename GridType::ValueType;
1750
1751 // GridType::ValueType is required to be a floating-point scalar.
1752 static_assert(std::is_floating_point<ValueType>::value,
1753 "level-set grids must be floating-point-valued");
1754
1755 typename GridType::Ptr grid = GridType::create(
1756 /*background=*/static_cast<ValueType>(voxelSize * halfWidth));
1757 grid->setTransform(math::Transform::createLinearTransform(voxelSize));
1758 grid->setGridClass(GRID_LEVEL_SET);
1759 return grid;
1760}
1761
1762
1763////////////////////////////////////////
1764
1765
1766 template<typename GridTypeListT, typename OpT>
1767 inline bool
1768 GridBase::apply(OpT& op) const
1769{
1770 return GridTypeListT::template apply<OpT&, const GridBase>(std::ref(op), *this);
1771}
1772
1773 template<typename GridTypeListT, typename OpT>
1774 inline bool
1775 GridBase::apply(OpT& op)
1776{
1777 return GridTypeListT::template apply<OpT&, GridBase>(std::ref(op), *this);
1778}
1779
1780 template<typename GridTypeListT, typename OpT>
1781 inline bool
1782 GridBase::apply(const OpT& op) const
1783{
1784 return GridTypeListT::template apply<const OpT&, const GridBase>(std::ref(op), *this);
1785}
1786
1787 template<typename GridTypeListT, typename OpT>
1788 inline bool
1789 GridBase::apply(const OpT& op)
1790{
1791 return GridTypeListT::template apply<const OpT&, GridBase>(std::ref(op), *this);
1792}
1793
1794
1795} // namespace OPENVDB_VERSION_NAME
1796} // namespace openvdb
1797
1798#endif // OPENVDB_GRID_HAS_BEEN_INCLUDED
Exceptions.h
OPENVDB_THROW
#define OPENVDB_THROW(exception, message)
Definition Exceptions.h:74
MetaMap.h
Name.h
OPENVDB_NO_DEPRECATION_WARNING_END
#define OPENVDB_NO_DEPRECATION_WARNING_END
Definition Platform.h:195
OPENVDB_NO_DEPRECATION_WARNING_BEGIN
#define OPENVDB_NO_DEPRECATION_WARNING_BEGIN
Bracket code with OPENVDB_NO_DEPRECATION_WARNING_BEGIN/_END, to inhibit warnings about deprecated cod...
Definition Platform.h:194
OPENVDB_API
#define OPENVDB_API
Definition Platform.h:274
OPENVDB_DEPRECATED_MESSAGE
#define OPENVDB_DEPRECATED_MESSAGE(msg)
Definition Platform.h:148
Transform.h
Tree.h
Types.h
openvdb::v11_0::GridBase
Abstract base class for typed grids.
Definition Grid.h:78
openvdb::v11_0::GridBase::valueType
virtual Name valueType() const =0
Return the name of the type of a voxel's value (e.g., "float" or "vec3d").
openvdb::v11_0::GridBase::copyGrid
virtual GridBase::Ptr copyGrid()=0
Return a new grid of the same type as this grid whose metadata is a deep copy of this grid's and whos...
openvdb::v11_0::GridBase::copyGridReplacingMetadataAndTransform
virtual GridBase::ConstPtr copyGridReplacingMetadataAndTransform(const MetaMap &meta, math::Transform::Ptr xform) const =0
Return a new grid of the same type as this grid whose tree is shared with this grid and whose transfo...
openvdb::v11_0::GridBase::copyGridReplacingMetadata
virtual GridBase::ConstPtr copyGridReplacingMetadata(const MetaMap &meta) const =0
Return a new grid of the same type as this grid whose tree and transform is shared with this grid and...
openvdb::v11_0::GridBase::META_FILE_MEM_BYTES
static const char *const META_FILE_MEM_BYTES
Definition Grid.h:360
openvdb::v11_0::GridBase::GridFactory
Ptr(*)() GridFactory
Definition Grid.h:83
openvdb::v11_0::GridBase::grid
static GridType::Ptr grid(const GridBase::Ptr &)
Return the result of downcasting a GridBase pointer to a Grid pointer of the specified type,...
Definition Grid.h:1189
openvdb::v11_0::GridBase::META_FILE_BBOX_MAX
static const char *const META_FILE_BBOX_MAX
Definition Grid.h:358
openvdb::v11_0::GridBase::readBuffers
virtual void readBuffers(std::istream &)=0
Read all data buffers for this grid.
openvdb::v11_0::GridBase::writeBuffers
virtual void writeBuffers(std::ostream &) const =0
Write out all data buffers for this grid.
openvdb::v11_0::GridBase::gridClassToMenuName
static std::string gridClassToMenuName(GridClass)
Return a formatted string version of the grid class.
openvdb::v11_0::GridBase::hasUniformVoxels
bool hasUniformVoxels() const
Return true if the voxels in world space are uniformly sized cubes.
Definition Grid.h:435
openvdb::v11_0::GridBase::constTransformPtr
math::Transform::ConstPtr constTransformPtr() const
Return a pointer to this grid's transform, which might be shared with other grids.
Definition Grid.h:404
openvdb::v11_0::GridBase::setSaveFloatAsHalf
void setSaveFloatAsHalf(bool)
Return this grid's user-specified name.
openvdb::v11_0::GridBase::~GridBase
~GridBase() override
Definition Grid.h:86
openvdb::v11_0::GridBase::copyGridReplacingTransform
virtual GridBase::ConstPtr copyGridReplacingTransform(math::Transform::Ptr xform) const =0
Return a new grid of the same type as this grid whose tree is shared with this grid,...
openvdb::v11_0::GridBase::indexToWorld
Vec3d indexToWorld(const Coord &ijk) const
Apply this grid's transform to the given coordinates.
Definition Grid.h:439
openvdb::v11_0::GridBase::voxelSize
Vec3d voxelSize() const
Return the size of this grid's voxels.
Definition Grid.h:430
openvdb::v11_0::GridBase::vecTypeDescription
static std::string vecTypeDescription(VecType)
Return a string describing how the given type of vector data is affected by transformations (e....
openvdb::v11_0::GridBase::constTransform
const math::Transform & constTransform() const
Return a pointer to this grid's transform, which might be shared with other grids.
Definition Grid.h:413
openvdb::v11_0::GridBase::setName
void setName(const std::string &)
Specify a name for this grid.
openvdb::v11_0::GridBase::META_FILE_DELAYED_LOAD
static const char *const META_FILE_DELAYED_LOAD
Definition Grid.h:362
openvdb::v11_0::GridBase::indexToWorld
Vec3d indexToWorld(const Vec3d &xyz) const
Apply this grid's transform to the given coordinates.
Definition Grid.h:437
openvdb::v11_0::GridBase::clearGridClass
void clearGridClass()
Remove the setting specifying the class of this grid's volumetric data.
openvdb::v11_0::GridBase::isTreeUnique
virtual bool isTreeUnique() const =0
Return true if tree is not shared with another grid.
openvdb::v11_0::GridBase::isType
bool isType() const
Return true if this grid is of the same type as the template parameter.
Definition Grid.h:146
openvdb::v11_0::GridBase::vecTypeToString
static std::string vecTypeToString(VecType)
Return the metadata string value for the given type of vector data.
openvdb::v11_0::GridBase::META_IS_LOCAL_SPACE
static const char *const META_IS_LOCAL_SPACE
Definition Grid.h:355
openvdb::v11_0::GridBase::worldToIndex
Vec3d worldToIndex(const Vec3d &xyz) const
Apply the inverse of this grid's transform to the given coordinates.
Definition Grid.h:441
openvdb::v11_0::GridBase::ConstPtr
SharedPtr< const GridBase > ConstPtr
Definition Grid.h:81
openvdb::v11_0::GridBase::copyGridWithNewTree
virtual GridBase::Ptr copyGridWithNewTree() const =0
Return a new grid of the same type as this grid whose metadata and transform are deep copies of this ...
openvdb::v11_0::GridBase::transform
math::Transform & transform()
Return a reference to this grid's transform, which might be shared with other grids.
Definition Grid.h:411
openvdb::v11_0::GridBase::GridBase
GridBase(GridBase &other, ShallowCopy)
Copy another grid's metadata but share its transform.
Definition Grid.h:492
openvdb::v11_0::GridBase::META_SAVE_HALF_FLOAT
static const char *const META_SAVE_HALF_FLOAT
Definition Grid.h:354
openvdb::v11_0::GridBase::clear
virtual void clear()=0
Empty this grid, setting all voxels to the background.
openvdb::v11_0::GridBase::setGridClass
void setGridClass(GridClass)
Specify the class of volumetric data (level set, fog volume, etc.) that is stored in this grid.
openvdb::v11_0::GridBase::writeTopology
virtual void writeTopology(std::ostream &) const =0
Write the grid topology to a stream. This will write only the grid structure, not the actual data buf...
openvdb::v11_0::GridBase::baseTreePtr
TreeBase::ConstPtr baseTreePtr() const
Return a pointer to this grid's tree, which might be shared with other grids. The pointer is guarante...
Definition Grid.h:171
openvdb::v11_0::GridBase::addStatsMetadata
void addStatsMetadata()
Add metadata to this grid comprising the current values of statistics like the active voxel count and...
openvdb::v11_0::GridBase::baseTree
const TreeBase & baseTree() const
Return a reference to this grid's tree, which might be shared with other grids.
Definition Grid.h:188
openvdb::v11_0::GridBase::clearVectorType
void clearVectorType()
Remove the setting specifying the type of vector data stored in this grid.
openvdb::v11_0::GridBase::newTree
virtual void newTree()=0
Set a new tree with the same background value as the previous tree.
openvdb::v11_0::GridBase::META_FILE_COMPRESSION
static const char *const META_FILE_COMPRESSION
Definition Grid.h:359
openvdb::v11_0::GridBase::constBaseTreePtr
virtual TreeBase::ConstPtr constBaseTreePtr() const =0
Return a pointer to this grid's tree, which might be shared with other grids. The pointer is guarante...
openvdb::v11_0::GridBase::vecTypeExamples
static std::string vecTypeExamples(VecType)
openvdb::v11_0::GridBase::clipGrid
void clipGrid(const BBoxd &)
Clip this grid to the given world-space bounding box.
openvdb::v11_0::GridBase::evalActiveVoxelBoundingBox
virtual CoordBBox evalActiveVoxelBoundingBox() const =0
openvdb::v11_0::GridBase::META_FILE_BBOX_MIN
static const char *const META_FILE_BBOX_MIN
Definition Grid.h:357
openvdb::v11_0::GridBase::memUsage
virtual Index64 memUsage() const =0
Return the number of bytes of memory used by this grid.
openvdb::v11_0::GridBase::setVectorType
void setVectorType(VecType)
Specify the type of vector data (invariant, covariant, etc.) stored in this grid, assuming that this ...
openvdb::v11_0::GridBase::activeVoxelCount
virtual Index64 activeVoxelCount() const =0
Return the number of active voxels.
openvdb::v11_0::GridBase::isRegistered
static bool isRegistered(const Name &type)
Return true if the given grid type name is registered.
openvdb::v11_0::GridBase::voxelSize
Vec3d voxelSize(const Vec3d &xyz) const
Return the size of this grid's voxel at position (x, y, z).
Definition Grid.h:433
openvdb::v11_0::GridBase::getName
std::string getName() const
Return this grid's user-specified name.
openvdb::v11_0::GridBase::print
virtual void print(std::ostream &=std::cout, int verboseLevel=1) const =0
Output a human-readable description of this grid.
openvdb::v11_0::GridBase::setTransform
void setTransform(math::Transform::Ptr)
Associate the given transform with this grid, in place of its existing transform.
Definition Grid.h:1234
openvdb::v11_0::GridBase::pruneGrid
virtual void pruneGrid(float tolerance=0.0)=0
Reduce the memory footprint of this grid by increasing its sparseness either losslessly (tolerance = ...
openvdb::v11_0::GridBase::apply
bool apply(OpT &) const
If this grid resolves to one of the listed grid types, invoke the given functor on the resolved grid.
Definition Grid.h:1768
openvdb::v11_0::GridBase::constGrid
static GridType::ConstPtr constGrid(const GridBase::Ptr &)
Definition Grid.h:1211
openvdb::v11_0::GridBase::getGridClass
GridClass getGridClass() const
Return the class of volumetric data (level set, fog volume, etc.) that is stored in this grid.
openvdb::v11_0::GridBase::stringToVecType
static VecType stringToVecType(const std::string &)
openvdb::v11_0::GridBase::unregisterGrid
static void unregisterGrid(const Name &type)
Remove a grid type from the registry.
openvdb::v11_0::GridBase::readNonresidentBuffers
virtual void readNonresidentBuffers() const =0
Read all of this grid's data buffers that are not yet resident in memory (because delayed loading is ...
openvdb::v11_0::GridBase::META_GRID_CREATOR
static const char *const META_GRID_CREATOR
Definition Grid.h:352
openvdb::v11_0::GridBase::readTransform
void readTransform(std::istream &is)
Read in the transform for this grid.
Definition Grid.h:470
openvdb::v11_0::GridBase::META_GRID_NAME
static const char *const META_GRID_NAME
Definition Grid.h:353
openvdb::v11_0::GridBase::META_GRID_CLASS
static const char *const META_GRID_CLASS
Definition Grid.h:351
openvdb::v11_0::GridBase::GridBase
GridBase(const GridBase &other)
Deep copy another grid's metadata and transform.
Definition Grid.h:489
openvdb::v11_0::GridBase::transformPtr
math::Transform::Ptr transformPtr()
Return a pointer to this grid's transform, which might be shared with other grids.
Definition Grid.h:402
openvdb::v11_0::GridBase::META_VECTOR_TYPE
static const char *const META_VECTOR_TYPE
Definition Grid.h:356
openvdb::v11_0::GridBase::stringToGridClass
static GridClass stringToGridClass(const std::string &)
Return the class of volumetric data specified by the given string.
openvdb::v11_0::GridBase::evalActiveVoxelDim
virtual Coord evalActiveVoxelDim() const =0
Return the dimensions of the axis-aligned bounding box of all active voxels.
openvdb::v11_0::GridBase::setCreator
void setCreator(const std::string &)
Provide a description of this grid's creator.
openvdb::v11_0::GridBase::saveFloatAsHalf
bool saveFloatAsHalf() const
Return true if this grid should be written out with floating-point voxel values (including components...
openvdb::v11_0::GridBase::getStatsMetadata
MetaMap::Ptr getStatsMetadata() const
Return a new MetaMap containing just the metadata that was added to this grid with addStatsMetadata.
openvdb::v11_0::GridBase::transform
const math::Transform & transform() const
Return a pointer to this grid's transform, which might be shared with other grids.
Definition Grid.h:412
openvdb::v11_0::GridBase::gridClassToString
static std::string gridClassToString(GridClass)
Return the metadata string value for the given class of volumetric data.
openvdb::v11_0::GridBase::clip
virtual void clip(const CoordBBox &)=0
Clip this grid to the given index-space bounding box.
openvdb::v11_0::GridBase::type
virtual Name type() const =0
Return the name of this grid's type.
openvdb::v11_0::GridBase::baseTree
TreeBase & baseTree()
Return a reference to this grid's tree, which might be shared with other grids.
Definition Grid.h:183
openvdb::v11_0::GridBase::readTopology
virtual void readTopology(std::istream &)=0
Read the grid topology from a stream. This will read only the grid structure, not the actual data buf...
openvdb::v11_0::GridBase::readBuffers
virtual void readBuffers(std::istream &, const CoordBBox &)=0
Read all of this grid's data buffers that intersect the given index-space bounding box.
openvdb::v11_0::GridBase::constBaseTree
const TreeBase & constBaseTree() const
Return a reference to this grid's tree, which might be shared with other grids.
Definition Grid.h:193
openvdb::v11_0::GridBase::clearRegistry
static void clearRegistry()
Clear the grid type registry.
openvdb::v11_0::GridBase::getCreator
std::string getCreator() const
Return the user-specified description of this grid's creator.
openvdb::v11_0::GridBase::writeTransform
void writeTransform(std::ostream &os) const
Write out the transform for this grid.
Definition Grid.h:472
openvdb::v11_0::GridBase::getVectorType
VecType getVectorType() const
Return the type of vector data (invariant, covariant, etc.) stored in this grid, assuming that this g...
openvdb::v11_0::GridBase::createGrid
static Ptr createGrid(const Name &type)
Create a new grid of the given (registered) type.
openvdb::v11_0::GridBase::Ptr
SharedPtr< GridBase > Ptr
Definition Grid.h:80
openvdb::v11_0::GridBase::registerGrid
static void registerGrid(const Name &type, GridFactory)
Register a grid type along with a factory function.
openvdb::v11_0::GridBase::baseTreePtr
TreeBase::Ptr baseTreePtr()
Return a pointer to this grid's tree, which might be shared with other grids. The pointer is guarante...
Definition Grid.h:1227
openvdb::v11_0::GridBase::empty
virtual bool empty() const =0
Return true if this grid contains only background voxels.
openvdb::v11_0::GridBase::META_FILE_VOXEL_COUNT
static const char *const META_FILE_VOXEL_COUNT
Definition Grid.h:361
openvdb::v11_0::GridBase::setTree
virtual void setTree(TreeBase::Ptr)=0
Associate the given tree with this grid, in place of its existing tree.
openvdb::v11_0::GridBase::deepCopyGrid
virtual GridBase::Ptr deepCopyGrid() const =0
Return a new grid whose metadata, transform and tree are deep copies of this grid's.
openvdb::v11_0::GridBase::copyGrid
virtual GridBase::ConstPtr copyGrid() const =0
Return a new grid of the same type as this grid whose metadata is a deep copy of this grid's and whos...
openvdb::v11_0::GridBase::GridBase
GridBase()
Initialize with an identity linear transform.
Definition Grid.h:482
openvdb::v11_0::GridBase::isInWorldSpace
bool isInWorldSpace() const
openvdb::v11_0::GridBase::transformPtr
math::Transform::ConstPtr transformPtr() const
Return a pointer to this grid's transform, which might be shared with other grids.
Definition Grid.h:403
openvdb::v11_0::GridBase::setIsInWorldSpace
void setIsInWorldSpace(bool)
Specify whether this grid's voxel values are in world space or in local space.
openvdb::v11_0::Grid
Container class that associates a tree with a transform and metadata.
Definition Grid.h:571
openvdb::v11_0::Grid::tree
const TreeType & tree() const
Return a pointer to this grid's tree, which might be shared with other grids. The pointer is guarante...
Definition Grid.h:909
openvdb::v11_0::Grid::ConstUnsafeAccessor
typename tree::ValueAccessor< const _TreeType, false > ConstUnsafeAccessor
Definition Grid.h:592
openvdb::v11_0::Grid::TreePtrType
typename _TreeType::Ptr TreePtrType
Definition Grid.h:577
openvdb::v11_0::Grid::Grid
Grid()
Construct a new grid with background value zero.
Definition Grid.h:1245
openvdb::v11_0::Grid::ValueOffCIter
typename _TreeType::ValueOffCIter ValueOffCIter
Definition Grid.h:585
openvdb::v11_0::Grid::evalMinMax
void evalMinMax(ValueType &minVal, ValueType &maxVal) const
Return the minimum and maximum active values in this grid.
Definition Grid.h:1553
openvdb::v11_0::Grid::UnsafeAccessor
typename tree::ValueAccessor< _TreeType, false > UnsafeAccessor
Definition Grid.h:591
openvdb::v11_0::Grid::empty
bool empty() const override
Return true if this grid contains only inactive background voxels.
Definition Grid.h:725
openvdb::v11_0::Grid::ValueOffIter
typename _TreeType::ValueOffIter ValueOffIter
Definition Grid.h:584
openvdb::v11_0::Grid::tree
TreeType & tree()
Return a reference to this grid's tree, which might be shared with other grids.
Definition Grid.h:908
openvdb::v11_0::Grid::topologyIntersection
void topologyIntersection(const Grid< OtherTreeType > &other)
Intersect this grid's set of active values with the active values of the other grid,...
Definition Grid.h:1533
openvdb::v11_0::Grid::cbeginValueOff
ValueOffCIter cbeginValueOff() const
Return an iterator over all of this grid's inactive values (tile and voxel).
Definition Grid.h:765
openvdb::v11_0::Grid::readBuffers
void readBuffers(std::istream &) override
Read all data buffers for this grid.
Definition Grid.h:1605
openvdb::v11_0::Grid::gridType
static Name gridType()
Return the name of this type of grid.
Definition Grid.h:711
openvdb::v11_0::Grid::writeBuffers
void writeBuffers(std::ostream &) const override
Write out all data buffers for this grid.
Definition Grid.h:1658
openvdb::v11_0::Grid::hasMultiPassIO
static bool hasMultiPassIO()
Return true if grids of this type require multiple I/O passes to read and write data buffers.
Definition Grid.h:1687
openvdb::v11_0::Grid::copyReplacingTransform
ConstPtr copyReplacingTransform(math::Transform::Ptr xform) const
Return a new grid of the same type as this grid whose tree is shared with this grid,...
Definition Grid.h:1364
openvdb::v11_0::Grid::copy
Ptr copy()
Return a new grid of the same type as this grid whose metadata and transform are deep copies of this ...
Definition Grid.h:1381
openvdb::v11_0::Grid::isTreeUnique
bool isTreeUnique() const final
Return true if tree is not shared with another grid.
Definition Grid.h:1446
openvdb::v11_0::Grid::pruneGrid
void pruneGrid(float tolerance=0.0) override
Reduce the memory footprint of this grid by increasing its sparseness.
Definition Grid.h:1500
openvdb::v11_0::Grid::clip
void clip(const CoordBBox &) override
Clip this grid to the given index-space bounding box.
Definition Grid.h:1508
openvdb::v11_0::Grid::cbeginValueAll
ValueAllCIter cbeginValueAll() const
Return an iterator over all of this grid's values (tile and voxel).
Definition Grid.h:771
openvdb::v11_0::Grid::constTreePtr
ConstTreePtrType constTreePtr() const
Return a pointer to this grid's tree, which might be shared with other grids. The pointer is guarante...
Definition Grid.h:896
openvdb::v11_0::Grid::evalActiveVoxelDim
Coord evalActiveVoxelDim() const override
Return the dimensions of the axis-aligned bounding box of all active voxels.
Definition Grid.h:1573
openvdb::v11_0::Grid::beginValueOn
ValueOnCIter beginValueOn() const
Return an iterator over all of this grid's active values (tile and voxel).
Definition Grid.h:757
openvdb::v11_0::Grid::Accessor
typename tree::ValueAccessor< _TreeType, true > Accessor
Definition Grid.h:589
openvdb::v11_0::Grid::setTree
void setTree(TreeBase::Ptr) override
Associate the given tree with this grid, in place of its existing tree.
Definition Grid.h:1454
openvdb::v11_0::Grid::copyWithNewTree
Ptr copyWithNewTree() const
Return a new grid of the same type as this grid whose metadata and transform are deep copies of this ...
Definition Grid.h:1389
openvdb::v11_0::Grid::copyGridWithNewTree
GridBase::Ptr copyGridWithNewTree() const override
Return a new grid of the same type as this grid whose metadata and transform are deep copies of this ...
Definition Grid.h:1435
openvdb::v11_0::Grid::ConstAccessor
typename tree::ValueAccessor< const _TreeType, true > ConstAccessor
Definition Grid.h:590
openvdb::v11_0::Grid::~Grid
~Grid() override
Definition Grid.h:640
openvdb::v11_0::Grid::type
Name type() const override
Return the name of this grid's type.
Definition Grid.h:709
openvdb::v11_0::Grid::print
void print(std::ostream &=std::cout, int verboseLevel=1) const override
Output a human-readable description of this grid.
Definition Grid.h:1695
openvdb::v11_0::Grid::copyGridReplacingMetadata
GridBase::ConstPtr copyGridReplacingMetadata(const MetaMap &meta) const override
Return a new grid of the same type as this grid whose tree and transform is shared with this grid and...
Definition Grid.h:1413
openvdb::v11_0::Grid::ValueAllCIter
typename _TreeType::ValueAllCIter ValueAllCIter
Definition Grid.h:587
openvdb::v11_0::Grid::activeVoxelCount
Index64 activeVoxelCount() const override
Return the number of active voxels.
Definition Grid.h:871
openvdb::v11_0::Grid::getAccessor
ConstAccessor getAccessor() const
Return an accessor that provides random read-only access to this grid's voxels.
Definition Grid.h:742
openvdb::v11_0::Grid::deepCopyGrid
GridBase::Ptr deepCopyGrid() const override
Return a new grid whose metadata, transform and tree are deep copies of this grid's.
Definition Grid.h:703
openvdb::v11_0::Grid::fill
void fill(const CoordBBox &bbox, const ValueType &value, bool active=true)
Set all voxels within a given axis-aligned box to a constant value.
Definition Grid.h:1486
openvdb::v11_0::Grid::beginValueOff
ValueOffCIter beginValueOff() const
Return an iterator over all of this grid's inactive values (tile and voxel).
Definition Grid.h:763
openvdb::v11_0::Grid::getUnsafeAccessor
UnsafeAccessor getUnsafeAccessor()
Return an unsafe accessor that provides random read and write access to this grid's voxels.
Definition Grid.h:740
openvdb::v11_0::Grid::copyGrid
GridBase::Ptr copyGrid() override
Return a new grid of the same type as this grid whose metadata is a deep copy of this grid's and whos...
Definition Grid.h:1399
openvdb::v11_0::Grid::ValueType
typename _TreeType::ValueType ValueType
Definition Grid.h:579
openvdb::v11_0::Grid::ConstTreePtrType
typename _TreeType::ConstPtr ConstTreePtrType
Definition Grid.h:578
openvdb::v11_0::Grid::beginValueOn
ValueOnIter beginValueOn()
Return an iterator over all of this grid's active values (tile and voxel).
Definition Grid.h:755
openvdb::v11_0::Grid::ValueOnCIter
typename _TreeType::ValueOnCIter ValueOnCIter
Definition Grid.h:583
openvdb::v11_0::Grid::ConstPtr
SharedPtr< const Grid > ConstPtr
Definition Grid.h:574
openvdb::v11_0::Grid::readTopology
void readTopology(std::istream &) override
Read the grid topology from a stream. This will read only the grid structure, not the actual data buf...
Definition Grid.h:1589
openvdb::v11_0::Grid::registerGrid
static void registerGrid()
Register this grid type along with a factory function.
Definition Grid.h:972
openvdb::v11_0::Grid::cbeginValueOn
ValueOnCIter cbeginValueOn() const
Return an iterator over all of this grid's active values (tile and voxel).
Definition Grid.h:759
openvdb::v11_0::Grid::copyReplacingMetadataAndTransform
ConstPtr copyReplacingMetadataAndTransform(const MetaMap &meta, math::Transform::Ptr xform) const
Return a new grid of the same type as this grid whose tree is shared with this grid and whose transfo...
Definition Grid.h:1371
openvdb::v11_0::Grid::isRegistered
static bool isRegistered()
Return true if this grid type is registered.
Definition Grid.h:970
openvdb::v11_0::Grid::ValueOnIter
typename _TreeType::ValueOnIter ValueOnIter
Definition Grid.h:582
openvdb::v11_0::Grid::readNonresidentBuffers
void readNonresidentBuffers() const override
Read all of this grid's data buffers that are not yet resident in memory (because delayed loading is ...
Definition Grid.h:1650
openvdb::v11_0::Grid::copyGridReplacingMetadataAndTransform
GridBase::ConstPtr copyGridReplacingMetadataAndTransform(const MetaMap &meta, math::Transform::Ptr xform) const override
Return a new grid of the same type as this grid whose tree is shared with this grid and whose transfo...
Definition Grid.h:1427
openvdb::v11_0::Grid::BuildType
typename _TreeType::BuildType BuildType
Definition Grid.h:580
openvdb::v11_0::Grid::getConstAccessor
ConstAccessor getConstAccessor() const
Return an accessor that provides random read-only access to this grid's voxels.
Definition Grid.h:744
openvdb::v11_0::Grid::denseFill
void denseFill(const CoordBBox &bbox, const ValueType &value, bool active=true)
Set all voxels within a given axis-aligned box to a constant value and ensure that those voxels are a...
Definition Grid.h:1493
openvdb::v11_0::Grid::treePtr
ConstTreePtrType treePtr() const
Return a pointer to this grid's tree, which might be shared with other grids. The pointer is guarante...
Definition Grid.h:895
openvdb::v11_0::Grid::topologyDifference
void topologyDifference(const Grid< OtherTreeType > &other)
Difference this grid's set of active values with the active values of the other grid,...
Definition Grid.h:1542
openvdb::v11_0::Grid::constBaseTreePtr
TreeBase::ConstPtr constBaseTreePtr() const override
Return a pointer to this grid's tree, which might be shared with other grids. The pointer is guarante...
Definition Grid.h:897
openvdb::v11_0::Grid::copyGridReplacingTransform
GridBase::ConstPtr copyGridReplacingTransform(math::Transform::Ptr xform) const override
Return a new grid of the same type as this grid whose tree is shared with this grid,...
Definition Grid.h:1420
openvdb::v11_0::Grid::evalActiveVoxelBoundingBox
CoordBBox evalActiveVoxelBoundingBox() const override
Return the axis-aligned bounding box of all active voxels.
Definition Grid.h:1563
openvdb::v11_0::Grid::deepCopy
Ptr deepCopy() const
Return a new grid whose metadata, transform and tree are deep copies of this grid's.
Definition Grid.h:701
openvdb::v11_0::Grid::background
const ValueType & background() const
Return this grid's background value.
Definition Grid.h:722
openvdb::v11_0::Grid::beginValueOff
ValueOffIter beginValueOff()
Return an iterator over all of this grid's inactive values (tile and voxel).
Definition Grid.h:761
openvdb::v11_0::Grid::sparseFill
void sparseFill(const CoordBBox &bbox, const ValueType &value, bool active=true)
Set all voxels within a given axis-aligned box to a constant value.
Definition Grid.h:1478
openvdb::v11_0::Grid::treePtr
TreePtrType treePtr()
Return a pointer to this grid's tree, which might be shared with other grids. The pointer is guarante...
Definition Grid.h:894
openvdb::v11_0::Grid::writeTopology
void writeTopology(std::ostream &) const override
Write the grid topology to a stream. This will write only the grid structure, not the actual data buf...
Definition Grid.h:1597
openvdb::v11_0::Grid::merge
void merge(Grid &other, MergePolicy policy=MERGE_ACTIVE_STATES)
Efficiently merge another grid into this grid using one of several schemes.
Definition Grid.h:1515
openvdb::v11_0::Grid::unregisterGrid
static void unregisterGrid()
Remove this grid type from the registry.
Definition Grid.h:974
openvdb::v11_0::Grid::copyReplacingMetadata
ConstPtr copyReplacingMetadata(const MetaMap &meta) const
Return a new grid of the same type as this grid whose tree and transform is shared with this grid and...
Definition Grid.h:1354
openvdb::v11_0::Grid::ValueAllIter
typename _TreeType::ValueAllIter ValueAllIter
Definition Grid.h:586
openvdb::v11_0::Grid::TreeType
_TreeType TreeType
Definition Grid.h:576
openvdb::v11_0::Grid::valueType
Name valueType() const override
Return the name of the type of a voxel's value (e.g., "float" or "vec3d").
Definition Grid.h:714
openvdb::v11_0::Grid::clear
void clear() override
Empty this grid, so that all voxels become inactive background voxels.
Definition Grid.h:727
openvdb::v11_0::Grid::constTree
const TreeType & constTree() const
Return a pointer to this grid's tree, which might be shared with other grids. The pointer is guarante...
Definition Grid.h:910
openvdb::v11_0::Grid::beginValueAll
ValueAllCIter beginValueAll() const
Return an iterator over all of this grid's values (tile and voxel).
Definition Grid.h:769
openvdb::v11_0::Grid::newTree
void newTree() override
Associate a new, empty tree with this grid, in place of its existing tree.
Definition Grid.h:1467
openvdb::v11_0::Grid::operator=
Grid & operator=(const Grid &)=delete
Disallow assignment, since it wouldn't be obvious whether the copy is deep or shallow.
openvdb::v11_0::Grid::getConstUnsafeAccessor
ConstUnsafeAccessor getConstUnsafeAccessor() const
Return an unsafe accessor that provides random read-only access to this grid's voxels.
Definition Grid.h:752
openvdb::v11_0::Grid::topologyUnion
void topologyUnion(const Grid< OtherTreeType > &other)
Union this grid's set of active values with the active values of the other grid, whose value type may...
Definition Grid.h:1524
openvdb::v11_0::Grid::Ptr
SharedPtr< Grid > Ptr
Definition Grid.h:573
openvdb::v11_0::Grid::getAccessor
Accessor getAccessor()
Return an accessor that provides random read and write access to this grid's voxels.
Definition Grid.h:732
openvdb::v11_0::Grid::beginValueAll
ValueAllIter beginValueAll()
Return an iterator over all of this grid's values (tile and voxel).
Definition Grid.h:767
openvdb::v11_0::Grid::create
static Ptr create()
Return a new grid with background value zero.
Definition Grid.h:1308
openvdb::v11_0::MetaMap
Container that maps names (strings) to values of arbitrary types.
Definition MetaMap.h:20
openvdb::v11_0::MetaMap::ConstMetaIterator
MetadataMap::const_iterator ConstMetaIterator
Definition MetaMap.h:28
openvdb::v11_0::MetaMap::Ptr
SharedPtr< MetaMap > Ptr
Definition MetaMap.h:22
openvdb::v11_0::ShallowCopy
Tag dispatch class that distinguishes shallow copy constructors from deep copy constructors.
Definition Types.h:680
openvdb::v11_0::TypeError
Definition Exceptions.h:64
openvdb::v11_0::ValueError
Definition Exceptions.h:65
openvdb::v11_0::io::StreamMetadata::Ptr
SharedPtr< StreamMetadata > Ptr
Definition io.h:33
openvdb::v11_0::math::BBox< Vec3d >
openvdb::v11_0::math::CoordBBox
Axis-aligned bounding box of signed integer coordinates.
Definition Coord.h:251
openvdb::v11_0::math::Coord
Signed (x, y, z) 32-bit integer coordinates.
Definition Coord.h:25
openvdb::v11_0::math::Coord::read
void read(std::istream &is)
Definition Coord.h:219
openvdb::v11_0::math::Transform
Definition Transform.h:40
openvdb::v11_0::math::Transform::ConstPtr
SharedPtr< const Transform > ConstPtr
Definition Transform.h:43
openvdb::v11_0::math::Transform::Ptr
SharedPtr< Transform > Ptr
Definition Transform.h:42
openvdb::v11_0::math::Transform::createLinearTransform
static Transform::Ptr createLinearTransform(double voxelSize=1.0)
Create and return a shared pointer to a new transform.
openvdb::v11_0::tree::TreeBase
Base class for typed trees.
Definition Tree.h:37
openvdb::v11_0::tree::TreeBase::Ptr
SharedPtr< TreeBase > Ptr
Definition Tree.h:39
openvdb::v11_0::tree::TreeBase::ConstPtr
SharedPtr< const TreeBase > ConstPtr
Definition Tree.h:40
openvdb::v11_0::tree::ValueAccessorImpl
The Value Accessor Implementation and API methods. The majoirty of the API matches the API of a compa...
Definition ValueAccessor.h:367
logging.h
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::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::math::cwiseAdd
Mat3< Type1 > cwiseAdd(const Mat3< Type1 > &m, const Type2 s)
Definition Mat3.h:806
openvdb::v11_0::Name
std::string Name
Definition Name.h:19
openvdb::v11_0::GridPtrVecCIter
GridPtrVec::const_iterator GridPtrVecCIter
Definition Grid.h:510
openvdb::v11_0::GridPtrVec
std::vector< GridBase::Ptr > GridPtrVec
Definition Grid.h:508
openvdb::v11_0::GridPtrSetPtr
SharedPtr< GridPtrSet > GridPtrSetPtr
Definition Grid.h:521
openvdb::v11_0::GridCPtrSetIter
GridCPtrSet::iterator GridCPtrSetIter
Definition Grid.h:524
openvdb::v11_0::GridCPtrSetPtr
SharedPtr< GridCPtrSet > GridCPtrSetPtr
Definition Grid.h:526
openvdb::v11_0::gridConstPtrCast
GridType::ConstPtr gridConstPtrCast(const GridBase::ConstPtr &grid)
Cast a generic const grid pointer to a const pointer to a grid of a concrete class.
Definition Grid.h:1018
openvdb::v11_0::Real
double Real
Definition Types.h:60
openvdb::v11_0::GridClass
GridClass
Definition Types.h:453
openvdb::v11_0::GRID_LEVEL_SET
@ GRID_LEVEL_SET
Definition Types.h:455
openvdb::v11_0::gridPtrCast
GridType::Ptr gridPtrCast(const GridBase::Ptr &grid)
Cast a generic grid pointer to a pointer to a grid of a concrete class.
Definition Grid.h:1002
openvdb::v11_0::GridCPtrSet
std::set< GridBase::ConstPtr > GridCPtrSet
Definition Grid.h:523
openvdb::v11_0::findGridByName
GridPtrContainerT::value_type findGridByName(const GridPtrContainerT &container, const Name &name)
Return the first grid in the given container whose name is name.
Definition Grid.h:540
openvdb::v11_0::GridPtrSet
std::set< GridBase::Ptr > GridPtrSet
Definition Grid.h:518
openvdb::v11_0::GridCPtrVecPtr
SharedPtr< GridCPtrVec > GridCPtrVecPtr
Definition Grid.h:516
openvdb::v11_0::GridCPtrVecIter
GridCPtrVec::iterator GridCPtrVecIter
Definition Grid.h:514
openvdb::v11_0::GridPtrVecPtr
SharedPtr< GridPtrVec > GridPtrVecPtr
Definition Grid.h:511
openvdb::v11_0::GridCPtrVecCIter
GridCPtrVec::const_iterator GridCPtrVecCIter
Definition Grid.h:515
openvdb::v11_0::GridPtrSetIter
GridPtrSet::iterator GridPtrSetIter
Definition Grid.h:519
openvdb::v11_0::GridCPtrSetCIter
GridCPtrSet::const_iterator GridCPtrSetCIter
Definition Grid.h:525
openvdb::v11_0::GridPtrSetCIter
GridPtrSet::const_iterator GridPtrSetCIter
Definition Grid.h:520
openvdb::v11_0::OPENVDB_FILE_VERSION_MULTIPASS_IO
@ OPENVDB_FILE_VERSION_MULTIPASS_IO
Definition version.h.in:259
openvdb::v11_0::createLevelSet
GridType::Ptr createLevelSet(Real voxelSize=1.0, Real halfWidth=LEVEL_SET_HALF_WIDTH)
Create a new grid of type GridType classified as a "Level Set", i.e., a narrow-band level set.
Definition Grid.h:1747
openvdb::v11_0::createGrid
GridType::Ptr createGrid(const typename GridType::ValueType &background)
Create a new grid of type GridType with a given background value.
Definition Grid.h:1722
openvdb::v11_0::Index64
uint64_t Index64
Definition Types.h:53
openvdb::v11_0::GridPtrVecIter
GridPtrVec::iterator GridPtrVecIter
Definition Grid.h:509
openvdb::v11_0::SharedPtr
std::shared_ptr< T > SharedPtr
Definition Types.h:114
openvdb::v11_0::MergePolicy
MergePolicy
Definition Types.h:506
openvdb::v11_0::VecType
VecType
Definition Types.h:483
openvdb::v11_0::StaticPtrCast
SharedPtr< T > StaticPtrCast(const SharedPtr< U > &ptr)
Return a new shared pointer that points to the same object as the given pointer after a static_cast.
Definition Types.h:146
openvdb::v11_0::GridCPtrVec
std::vector< GridBase::ConstPtr > GridCPtrVec
Definition Grid.h:513
openvdb::v11_0::deepCopyTypedGrid
GridType::Ptr deepCopyTypedGrid(const GridBase::ConstPtr &grid)
Return a pointer to a deep copy of the given grid, provided that the grid's concrete type is GridType...
Definition Grid.h:1035
openvdb::v11_0::createGrid
GridType::Ptr createGrid()
Create a new grid of type GridType with background value zero.
Definition Grid.h:1730
openvdb
Definition Exceptions.h:13
io.h
openvdb::v11_0::Grid::ValueConverter
ValueConverter<T>::Type is the type of a grid having the same hierarchy as this grid but a different ...
Definition Grid.h:601
openvdb::v11_0::GridNamePred
Predicate functor that returns true for grids that have a specified name.
Definition Grid.h:531
openvdb::v11_0::GridNamePred::name
Name name
Definition Grid.h:534
openvdb::v11_0::GridNamePred::GridNamePred
GridNamePred(const Name &_name)
Definition Grid.h:532
openvdb::v11_0::GridNamePred::operator()
bool operator()(const GridBase::ConstPtr &g) const
Definition Grid.h:533
openvdb::v11_0::HasMultiPassIO
Metafunction that specifies whether a given leaf node, tree, or grid type requires multiple passes to...
Definition Grid.h:1159
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::tree
static TreeType & tree(GridType &g)
Definition Grid.h:1107
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::NonConstTreeType
typename std::remove_const< TreeType >::type NonConstTreeType
Definition Grid.h:1092
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::ValueType
typename TreeType::ValueType ValueType
Definition Grid.h:1101
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::constTree
static const TreeType & constTree(GridType &g)
Definition Grid.h:1111
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::NonConstAccessorType
typename tree::ValueAccessor< NonConstTreeType > NonConstAccessorType
Definition Grid.h:1104
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::ConstAccessorType
typename tree::ValueAccessor< const TreeType > ConstAccessorType
Definition Grid.h:1103
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::tree
static const TreeType & tree(const GridType &g)
Definition Grid.h:1109
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::NonConstTreePtrType
typename NonConstTreeType::Ptr NonConstTreePtrType
Definition Grid.h:1095
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::ConstTreePtrType
typename TreeType::ConstPtr ConstTreePtrType
Definition Grid.h:1094
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::tree
static TreeType & tree(TreeType &t)
Definition Grid.h:1106
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::constTree
static const TreeType & constTree(const GridType &g)
Definition Grid.h:1113
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::GridPtrType
typename GridType::Ptr GridPtrType
Definition Grid.h:1098
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::tree
static const TreeType & tree(const TreeType &t)
Definition Grid.h:1108
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::constTree
static const TreeType & constTree(TreeType &t)
Definition Grid.h:1110
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::ConstGridPtrType
typename GridType::ConstPtr ConstGridPtrType
Definition Grid.h:1100
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::TreePtrType
typename TreeType::Ptr TreePtrType
Definition Grid.h:1093
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::TreeType
_TreeType TreeType
Definition Grid.h:1091
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::constTree
static const TreeType & constTree(const TreeType &t)
Definition Grid.h:1112
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::NonConstGridPtrType
typename NonConstGridType::Ptr NonConstGridPtrType
Definition Grid.h:1099
openvdb::v11_0::TreeAdapter< Grid< _TreeType > >::AccessorType
typename tree::ValueAccessor< TreeType > AccessorType
Definition Grid.h:1102
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::tree
static TreeType & tree(GridType &g)
Definition Grid.h:1136
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::NonConstTreeType
typename std::remove_const< TreeType >::type NonConstTreeType
Definition Grid.h:1121
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::ValueType
typename TreeType::ValueType ValueType
Definition Grid.h:1130
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::constTree
static const TreeType & constTree(GridType &g)
Definition Grid.h:1142
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::NonConstAccessorType
typename tree::ValueAccessor< NonConstTreeType > NonConstAccessorType
Definition Grid.h:1133
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::ConstAccessorType
typename tree::ValueAccessor< const TreeType > ConstAccessorType
Definition Grid.h:1132
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::tree
static const TreeType & tree(const GridType &g)
Definition Grid.h:1139
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::tree
static const TreeType & tree(const AccessorType &a)
Definition Grid.h:1140
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::NonConstTreePtrType
typename NonConstTreeType::Ptr NonConstTreePtrType
Definition Grid.h:1124
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::ConstTreePtrType
typename TreeType::ConstPtr ConstTreePtrType
Definition Grid.h:1123
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::tree
static TreeType & tree(TreeType &t)
Definition Grid.h:1135
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::constTree
static const TreeType & constTree(const GridType &g)
Definition Grid.h:1144
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::GridPtrType
typename GridType::Ptr GridPtrType
Definition Grid.h:1127
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::tree
static const TreeType & tree(const TreeType &t)
Definition Grid.h:1138
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::constTree
static const TreeType & constTree(TreeType &t)
Definition Grid.h:1141
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::tree
static TreeType & tree(AccessorType &a)
Definition Grid.h:1137
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::ConstGridPtrType
typename GridType::ConstPtr ConstGridPtrType
Definition Grid.h:1129
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::TreePtrType
typename TreeType::Ptr TreePtrType
Definition Grid.h:1122
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::TreeType
_TreeType TreeType
Definition Grid.h:1120
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::constTree
static const TreeType & constTree(const TreeType &t)
Definition Grid.h:1143
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::NonConstGridPtrType
typename NonConstGridType::Ptr NonConstGridPtrType
Definition Grid.h:1128
openvdb::v11_0::TreeAdapter< tree::ValueAccessor< _TreeType > >::AccessorType
typename tree::ValueAccessor< TreeType > AccessorType
Definition Grid.h:1131
openvdb::v11_0::TreeAdapter
This adapter allows code that is templated on a Tree type to accept either a Tree type or a Grid type...
Definition Grid.h:1060
openvdb::v11_0::TreeAdapter::tree
static TreeType & tree(GridType &g)
Definition Grid.h:1077
openvdb::v11_0::TreeAdapter::NonConstTreeType
typename std::remove_const< TreeType >::type NonConstTreeType
Definition Grid.h:1062
openvdb::v11_0::TreeAdapter::ValueType
typename TreeType::ValueType ValueType
Definition Grid.h:1071
openvdb::v11_0::TreeAdapter::constTree
static const TreeType & constTree(GridType &g)
Definition Grid.h:1081
openvdb::v11_0::TreeAdapter::NonConstAccessorType
typename tree::ValueAccessor< NonConstTreeType > NonConstAccessorType
Definition Grid.h:1074
openvdb::v11_0::TreeAdapter::ConstAccessorType
typename tree::ValueAccessor< const TreeType > ConstAccessorType
Definition Grid.h:1073
openvdb::v11_0::TreeAdapter::tree
static const TreeType & tree(const GridType &g)
Definition Grid.h:1079
openvdb::v11_0::TreeAdapter::NonConstTreePtrType
typename NonConstTreeType::Ptr NonConstTreePtrType
Definition Grid.h:1065
openvdb::v11_0::TreeAdapter::ConstTreePtrType
typename TreeType::ConstPtr ConstTreePtrType
Definition Grid.h:1064
openvdb::v11_0::TreeAdapter::tree
static TreeType & tree(TreeType &t)
Definition Grid.h:1076
openvdb::v11_0::TreeAdapter::constTree
static const TreeType & constTree(const GridType &g)
Definition Grid.h:1083
openvdb::v11_0::TreeAdapter::GridPtrType
typename GridType::Ptr GridPtrType
Definition Grid.h:1068
openvdb::v11_0::TreeAdapter::tree
static const TreeType & tree(const TreeType &t)
Definition Grid.h:1078
openvdb::v11_0::TreeAdapter::constTree
static const TreeType & constTree(TreeType &t)
Definition Grid.h:1080
openvdb::v11_0::TreeAdapter::ConstGridPtrType
typename GridType::ConstPtr ConstGridPtrType
Definition Grid.h:1070
openvdb::v11_0::TreeAdapter::TreePtrType
typename TreeType::Ptr TreePtrType
Definition Grid.h:1063
openvdb::v11_0::TreeAdapter::TreeType
_TreeType TreeType
Definition Grid.h:1061
openvdb::v11_0::TreeAdapter::constTree
static const TreeType & constTree(const TreeType &t)
Definition Grid.h:1082
openvdb::v11_0::TreeAdapter::NonConstGridPtrType
typename NonConstGridType::Ptr NonConstGridPtrType
Definition Grid.h:1069
openvdb::v11_0::TreeAdapter::AccessorType
typename tree::ValueAccessor< TreeType > AccessorType
Definition Grid.h:1072
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