BVH_DistanceField< T, N > Class Template Reference

Tool object for building 3D distance field from the set of BVH triangulations. Distance field is a scalar field that measures the distance from a given point to some object, including optional information about the inside and outside of the structure. Distance fields are used as alternative surface representations (like polygons or NURBS). More...

#include <BVH_DistanceField.hxx>

Public Types
typedef BVH::VectorType< T, N >::Type	BVH_VecNt

Public Member Functions
	BVH_DistanceField (const Standard_Integer theMaximumSize, const Standard_Boolean theComputeSign)
	Creates empty 3D distance field. More...
virtual	~BVH_DistanceField ()
	Releases resources of 3D distance field. More...
Standard_Boolean	Build (BVH_Geometry< T, N > &theGeometry)
	Builds 3D distance field from BVH geometry. More...
const T *	PackedData () const
	Returns packed voxel data. More...
T &	Voxel (const Standard_Integer theX, const Standard_Integer theY, const Standard_Integer theZ)
	Returns distance value for the given voxel. More...
T	Voxel (const Standard_Integer theX, const Standard_Integer theY, const Standard_Integer theZ) const
	Returns distance value for the given voxel. More...
Standard_Integer	DimensionX () const
	Returns size of voxel grid in X dimension. More...
Standard_Integer	DimensionY () const
	Returns size of voxel grid in Y dimension. More...
Standard_Integer	DimensionZ () const
	Returns size of voxel grid in Z dimension. More...
const BVH_VecNt &	VoxelSize () const
	Returns size of single voxel. More...
const BVH_VecNt &	CornerMin () const
	Returns minimum corner of voxel grid. More...
const BVH_VecNt &	CornerMax () const
	Returns maximum corner of voxel grid. More...

Protected Member Functions
void	BuildSlices (BVH_Geometry< T, N > &theGeometry, const Standard_Integer theStartZ, const Standard_Integer theFinalZ)
	Performs building of distance field for the given Z slices. More...

Protected Attributes
T *	myVoxelData
	Array of voxels. More...
BVH_VecNt	myVoxelSize
	Size of single voxel. More...
BVH_VecNt	myCornerMin
	Minimum corner of voxel grid. More...
BVH_VecNt	myCornerMax
	Maximum corner of voxel grid. More...
Standard_Integer	myDimensionX
	Size of voxel grid in X dimension. More...
Standard_Integer	myDimensionY
	Size of voxel grid in Y dimension. More...
Standard_Integer	myDimensionZ
	Size of voxel grid in Z dimension. More...
Standard_Integer	myMaximumSize
	Size of voxel grid in maximum dimension. More...
Standard_Boolean	myComputeSign
	Enables/disables signing of distance field. More...

Detailed Description

template<class T, int N>
class BVH_DistanceField< T, N >

Tool object for building 3D distance field from the set of BVH triangulations. Distance field is a scalar field that measures the distance from a given point to some object, including optional information about the inside and outside of the structure. Distance fields are used as alternative surface representations (like polygons or NURBS).

Member Typedef Documentation

template<class T , int N>

typedef BVH::VectorType<T, N>::Type BVH_DistanceField< T, N >::BVH_VecNt

Constructor & Destructor Documentation

template<class T , int N>

BVH_DistanceField< T, N >::BVH_DistanceField	(	const Standard_Integer	theMaximumSize,
		const Standard_Boolean	theComputeSign
	)

Creates empty 3D distance field.

template<class T , int N>

virtual BVH_DistanceField< T, N >::~BVH_DistanceField ( )

virtual

Releases resources of 3D distance field.

Member Function Documentation

template<class T , int N>

Standard_Boolean BVH_DistanceField< T, N >::Build

(

BVH_Geometry< T, N > &

theGeometry

)

Builds 3D distance field from BVH geometry.

template<class T , int N>

void BVH_DistanceField< T, N >::BuildSlices ( BVH_Geometry< T, N > &  theGeometry, const Standard_Integer  theStartZ, const Standard_Integer  theFinalZ  )

protected

Performs building of distance field for the given Z slices.

template<class T , int N>

const BVH_VecNt& BVH_DistanceField< T, N >::CornerMax ( ) const

inline

Returns maximum corner of voxel grid.

template<class T , int N>

const BVH_VecNt& BVH_DistanceField< T, N >::CornerMin ( ) const

inline

Returns minimum corner of voxel grid.

template<class T , int N>

Standard_Integer BVH_DistanceField< T, N >::DimensionX ( ) const

inline

Returns size of voxel grid in X dimension.

template<class T , int N>

Standard_Integer BVH_DistanceField< T, N >::DimensionY ( ) const

inline

Returns size of voxel grid in Y dimension.

template<class T , int N>

Standard_Integer BVH_DistanceField< T, N >::DimensionZ ( ) const

inline

Returns size of voxel grid in Z dimension.

template<class T , int N>

const T* BVH_DistanceField< T, N >::PackedData ( ) const

inline

Returns packed voxel data.

template<class T , int N>

T& BVH_DistanceField< T, N >::Voxel ( const Standard_Integer  theX, const Standard_Integer  theY, const Standard_Integer  theZ  )

inline

Returns distance value for the given voxel.

template<class T , int N>

T BVH_DistanceField< T, N >::Voxel ( const Standard_Integer  theX, const Standard_Integer  theY, const Standard_Integer  theZ  ) const

inline

Returns distance value for the given voxel.

template<class T , int N>

const BVH_VecNt& BVH_DistanceField< T, N >::VoxelSize ( ) const

inline

Returns size of single voxel.

Field Documentation

template<class T , int N>

Standard_Boolean BVH_DistanceField< T, N >::myComputeSign

protected

Enables/disables signing of distance field.

template<class T , int N>

BVH_VecNt BVH_DistanceField< T, N >::myCornerMax

protected

Maximum corner of voxel grid.

template<class T , int N>

BVH_VecNt BVH_DistanceField< T, N >::myCornerMin

protected

Minimum corner of voxel grid.

template<class T , int N>

Standard_Integer BVH_DistanceField< T, N >::myDimensionX

protected

Size of voxel grid in X dimension.

template<class T , int N>

Standard_Integer BVH_DistanceField< T, N >::myDimensionY

protected

Size of voxel grid in Y dimension.

template<class T , int N>

Standard_Integer BVH_DistanceField< T, N >::myDimensionZ

protected

Size of voxel grid in Z dimension.

template<class T , int N>

Standard_Integer BVH_DistanceField< T, N >::myMaximumSize

protected

Size of voxel grid in maximum dimension.

template<class T , int N>

T* BVH_DistanceField< T, N >::myVoxelData

protected

Array of voxels.

template<class T , int N>

BVH_VecNt BVH_DistanceField< T, N >::myVoxelSize

protected

Size of single voxel.

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

• BVH_DistanceField.hxx