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openvdb::OPENVDB_VERSION_NAME::tools::ClosestSurfacePoint< GridT > Class Template Reference

Accelerated closest surface point queries for narrow band level sets. More...

#include <VolumeToSpheres.h>

Public Types

using Ptr = std::unique_ptr< ClosestSurfacePoint >
 
using TreeT = typename GridT::TreeType
 
using BoolTreeT = typename TreeT::template ValueConverter< bool >::Type
 
using Index32TreeT = typename TreeT::template ValueConverter< Index32 >::Type
 
using Int16TreeT = typename TreeT::template ValueConverter< Int16 >::Type
 

Public Member Functions

bool search (const std::vector< Vec3R > &points, std::vector< float > &distances)
 Compute the distance from each input point to its closest surface point. More...
 
bool searchAndReplace (std::vector< Vec3R > &points, std::vector< float > &distances)
 Overwrite each input point with its closest surface point. More...
 
const Index32TreeTindexTree () const
 Tree accessor. More...
 
const Int16TreeTsignTree () const
 Tree accessor. More...
 
template<typename InterrupterT >
ClosestSurfacePoint< GridT >::Ptr create (const GridT &grid, float isovalue, InterrupterT *interrupter)
 

Static Public Member Functions

template<typename InterrupterT = util::NullInterrupter>
static Ptr create (const GridT &grid, float isovalue=0.0, InterrupterT *interrupter=nullptr)
 Extract surface points and construct a spatial acceleration structure. More...
 

Detailed Description

template<typename GridT>
class openvdb::OPENVDB_VERSION_NAME::tools::ClosestSurfacePoint< GridT >

Accelerated closest surface point queries for narrow band level sets.

Supports queries that originate at arbitrary world-space locations, is not confined to the narrow band region of the input volume geometry.

Definition at line 126 of file VolumeToSpheres.h.

Member Typedef Documentation

template<typename GridT >
using openvdb::OPENVDB_VERSION_NAME::tools::ClosestSurfacePoint< GridT >::BoolTreeT = typename TreeT::template ValueConverter<bool>::Type

Definition at line 131 of file VolumeToSpheres.h.

template<typename GridT >
using openvdb::OPENVDB_VERSION_NAME::tools::ClosestSurfacePoint< GridT >::Index32TreeT = typename TreeT::template ValueConverter<Index32>::Type

Definition at line 132 of file VolumeToSpheres.h.

template<typename GridT >
using openvdb::OPENVDB_VERSION_NAME::tools::ClosestSurfacePoint< GridT >::Int16TreeT = typename TreeT::template ValueConverter<Int16>::Type

Definition at line 133 of file VolumeToSpheres.h.

template<typename GridT >
using openvdb::OPENVDB_VERSION_NAME::tools::ClosestSurfacePoint< GridT >::Ptr = std::unique_ptr<ClosestSurfacePoint>

Definition at line 129 of file VolumeToSpheres.h.

template<typename GridT >
using openvdb::OPENVDB_VERSION_NAME::tools::ClosestSurfacePoint< GridT >::TreeT = typename GridT::TreeType

Definition at line 130 of file VolumeToSpheres.h.

Member Function Documentation

template<typename GridT >
template<typename InterrupterT = util::NullInterrupter>
static Ptr openvdb::OPENVDB_VERSION_NAME::tools::ClosestSurfacePoint< GridT >::create ( const GridT &  grid,
float  isovalue = 0.0,
InterrupterT *  interrupter = nullptr 
)
inlinestatic

Extract surface points and construct a spatial acceleration structure.

Returns
a null pointer if the initialization fails for any reason, otherwise a unique pointer to a newly-allocated ClosestSurfacePoint object.
Parameters
grida scalar level set or fog volume
isovaluethe voxel value that determines the surface of the volume The default value of zero works for signed distance fields, while fog volumes require a larger positive value (0.5 is a good initial guess).
interrupterpointer to an object adhering to the util::NullInterrupter interface.
template<typename GridT >
template<typename InterrupterT >
ClosestSurfacePoint<GridT>::Ptr openvdb::OPENVDB_VERSION_NAME::tools::ClosestSurfacePoint< GridT >::create ( const GridT &  grid,
float  isovalue,
InterrupterT *  interrupter 
)
inline

Definition at line 885 of file VolumeToSpheres.h.

template<typename GridT >
const Index32TreeT& openvdb::OPENVDB_VERSION_NAME::tools::ClosestSurfacePoint< GridT >::indexTree ( ) const
inline

Tree accessor.

Definition at line 161 of file VolumeToSpheres.h.

template<typename GridT >
bool openvdb::OPENVDB_VERSION_NAME::tools::ClosestSurfacePoint< GridT >::search ( const std::vector< Vec3R > &  points,
std::vector< float > &  distances 
)
inline

Compute the distance from each input point to its closest surface point.

Parameters
pointsinput list of points in world space
distancesoutput list of closest surface point distances

Definition at line 1039 of file VolumeToSpheres.h.

template<typename GridT >
bool openvdb::OPENVDB_VERSION_NAME::tools::ClosestSurfacePoint< GridT >::searchAndReplace ( std::vector< Vec3R > &  points,
std::vector< float > &  distances 
)
inline

Overwrite each input point with its closest surface point.

Parameters
pointsinput/output list of points in world space
distancesoutput list of closest surface point distances

Definition at line 1047 of file VolumeToSpheres.h.

template<typename GridT >
const Int16TreeT& openvdb::OPENVDB_VERSION_NAME::tools::ClosestSurfacePoint< GridT >::signTree ( ) const
inline

Tree accessor.

Definition at line 163 of file VolumeToSpheres.h.


The documentation for this class was generated from the following file: