OpenVDB 13.0.0

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PointCount.h
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1// Copyright Contributors to the OpenVDB Project
2// SPDX-License-Identifier: Apache-2.0
3
4/// @file points/PointCount.h
5///
6/// @author Dan Bailey
7///
8/// @brief Methods for counting points in VDB Point grids.
9
10#ifndef OPENVDB_POINTS_POINT_COUNT_HAS_BEEN_INCLUDED
11#define OPENVDB_POINTS_POINT_COUNT_HAS_BEEN_INCLUDED
12
13#include <openvdb/openvdb.h>
14
15#include "PointDataGrid.h"
16#include "PointMask.h"
17#include "IndexFilter.h"
18
19#include <tbb/parallel_reduce.h>
20
21#include <vector>
22
23 namespace openvdb {
24 OPENVDB_USE_VERSION_NAMESPACE
25 namespace OPENVDB_VERSION_NAME {
26 namespace points {
27
28/// @brief Count the total number of points in a PointDataTree
29/// @param tree the PointDataTree in which to count the points
30/// @param filter an optional index filter
31/// @param inCoreOnly if true, points in out-of-core leaf nodes are not counted
32/// @param threaded enable or disable threading (threading is enabled by default)
33 template <typename PointDataTreeT, typename FilterT = NullFilter>
34 inline Index64 pointCount( const PointDataTreeT& tree,
35 const FilterT& filter = NullFilter(),
36 const bool inCoreOnly = false,
37 const bool threaded = true);
38
39/// @brief Populate an array of cumulative point offsets per leaf node.
40/// @param pointOffsets array of offsets to be populated
41/// @param tree the PointDataTree from which to populate the offsets
42/// @param filter an optional index filter
43/// @param inCoreOnly if true, points in out-of-core leaf nodes are ignored
44/// @param threaded enable or disable threading (threading is enabled by default)
45/// @return The final cumulative point offset.
46 template <typename PointDataTreeT, typename FilterT = NullFilter>
47 inline Index64 pointOffsets(std::vector<Index64>& pointOffsets,
48 const PointDataTreeT& tree,
49 const FilterT& filter = NullFilter(),
50 const bool inCoreOnly = false,
51 const bool threaded = true);
52
53/// @brief Generate a new grid with voxel values to store the number of points per voxel
54/// @param grid the PointDataGrid to use to compute the count grid
55/// @param filter an optional index filter
56/// @note The return type of the grid must be an integer or floating-point scalar grid.
57 template <typename PointDataGridT,
58 typename GridT = typename PointDataGridT::template ValueConverter<Int32>::Type,
59 typename FilterT = NullFilter>
60 inline typename GridT::Ptr
61 pointCountGrid( const PointDataGridT& grid,
62 const FilterT& filter = NullFilter());
63
64/// @brief Generate a new grid that uses the supplied transform with voxel values to store the
65/// number of points per voxel.
66/// @param grid the PointDataGrid to use to compute the count grid
67/// @param transform the transform to use to compute the count grid
68/// @param filter an optional index filter
69/// @note The return type of the grid must be an integer or floating-point scalar grid.
70 template <typename PointDataGridT,
71 typename GridT = typename PointDataGridT::template ValueConverter<Int32>::Type,
72 typename FilterT = NullFilter>
73 inline typename GridT::Ptr
74 pointCountGrid( const PointDataGridT& grid,
75 const openvdb::math::Transform& transform,
76 const FilterT& filter = NullFilter());
77
78} // namespace points
79} // namespace OPENVDB_VERSION_NAME
80} // namespace openvdb
81
82#include "impl/PointCountImpl.h"
83
84#endif // OPENVDB_POINTS_POINT_COUNT_HAS_BEEN_INCLUDED
IndexFilter.h
Index filters primarily designed to be used with a FilterIndexIter.
PointCountImpl.h
PointDataGrid.h
Attribute-owned data structure for points. Point attributes are stored in leaf nodes and ordered by v...
PointMask.h
Methods for extracting masks from VDB Point grids.
openvdb::v13_0::points::pointOffsets
Index64 pointOffsets(std::vector< Index64 > &pointOffsets, const PointDataTreeT &tree, const FilterT &filter=NullFilter(), const bool inCoreOnly=false, const bool threaded=true)
Populate an array of cumulative point offsets per leaf node.
Definition PointCountImpl.h:52
openvdb::v13_0::points::pointCount
Index64 pointCount(const PointDataTreeT &tree, const FilterT &filter=NullFilter(), const bool inCoreOnly=false, const bool threaded=true)
Count the total number of points in a PointDataTree.
Definition PointCountImpl.h:18
openvdb::v13_0::points::pointCountGrid
GridT::Ptr pointCountGrid(const PointDataGridT &grid, const FilterT &filter=NullFilter())
Generate a new grid with voxel values to store the number of points per voxel.
Definition PointCountImpl.h:95
openvdb::v13_0::Index64
uint64_t Index64
Definition Types.h:33
openvdb
Definition Exceptions.h:13
openvdb.h
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:218