DualGridSampler< GridOrTreeT, SamplerT > Class Template Reference

This is a simple convenience class that allows for sampling from a source grid into the index space of a target grid. At construction the source and target grids are checked for alignment which potentially renders interpolation unnecessary. Else interpolation is performed according to the templated Sampler type. More...

#include <openvdb/tools/Interpolation.h>

Public Types
using	ValueType = typename GridOrTreeT::ValueType
using	GridType = typename TreeAdapter< GridOrTreeT >::GridType
using	TreeType = typename TreeAdapter< GridOrTreeT >::TreeType
using	AccessorType = typename TreeAdapter< GridType >::AccessorType

Public Member Functions
	DualGridSampler (const GridType &sourceGrid, const math::Transform &targetXform)
	Grid and transform constructor. More...
	DualGridSampler (const TreeType &sourceTree, const math::Transform &sourceXform, const math::Transform &targetXform)
	Tree and transform constructor. More...
ValueType	operator() (const Coord &ijk) const
	Return the value of the source grid at the index coordinates, ijk, relative to the target grid (or its tranform). More...
bool	isAligned () const
	Return true if the two grids are aligned. More...

Detailed Description

template<typename GridOrTreeT, typename SamplerT>
class openvdb::v12_0::tools::DualGridSampler< GridOrTreeT, SamplerT >

This is a simple convenience class that allows for sampling from a source grid into the index space of a target grid. At construction the source and target grids are checked for alignment which potentially renders interpolation unnecessary. Else interpolation is performed according to the templated Sampler type.

Warning

For performance reasons the check for alignment of the two grids is only performed at construction time!

Member Typedef Documentation

using AccessorType = typename TreeAdapter<GridType>::AccessorType

using GridType = typename TreeAdapter<GridOrTreeT>::GridType

using TreeType = typename TreeAdapter<GridOrTreeT>::TreeType

using ValueType = typename GridOrTreeT::ValueType

Constructor & Destructor Documentation

DualGridSampler ( const GridType &  sourceGrid, const math::Transform &  targetXform  )

inline

Grid and transform constructor.

Parameters

sourceGrid	Source grid.
targetXform	Transform of the target grid.

DualGridSampler ( const TreeType &  sourceTree, const math::Transform &  sourceXform, const math::Transform &  targetXform  )

inline

Tree and transform constructor.

Parameters

sourceTree	Source tree.
sourceXform	Transform of the source grid.
targetXform	Transform of the target grid.

Member Function Documentation

bool isAligned ( ) const

inline

Return true if the two grids are aligned.

ValueType operator() ( const Coord &  ijk ) const

inline

Return the value of the source grid at the index coordinates, ijk, relative to the target grid (or its tranform).