OpenVDB
12.0.0
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Accelerated closest surface point queries for narrow band level sets. More...
#include <openvdb/tools/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 Index32TreeT & | indexTree () const |
Tree accessor. More... | |
const Int16TreeT & | signTree () const |
Tree accessor. More... | |
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... | |
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.
using Index32TreeT = typename TreeT::template ValueConverter<Index32>::Type |
using Int16TreeT = typename TreeT::template ValueConverter<Int16>::Type |
using Ptr = std::unique_ptr<ClosestSurfacePoint> |
using TreeT = typename GridT::TreeType |
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static |
Extract surface points and construct a spatial acceleration structure.
grid | a scalar level set or fog volume |
isovalue | the 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). |
interrupter | pointer to an object adhering to the util::NullInterrupter interface. |
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inline |
Tree accessor.
Compute the distance from each input point to its closest surface point.
points | input list of points in world space |
distances | output list of closest surface point distances |
Overwrite each input point with its closest surface point.
points | input/output list of points in world space |
distances | output list of closest surface point distances |
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inline |
Tree accessor.