OpenVDB  12.0.0
Public Types | Public Member Functions | Static Public Member Functions | List of all members
Dense< ValueT, Layout > Class Template Reference

Dense is a simple dense grid API used by the CopyToDense and CopyFromDense classes defined below. More...

#include <openvdb/tools/Dense.h>

Inherits DenseBase< ValueT, Layout >.

Public Types

using ValueType = ValueT
 
using BaseT = DenseBase< ValueT, Layout >
 
using Ptr = SharedPtr< Dense >
 
using ConstPtr = SharedPtr< const Dense >
 

Public Member Functions

 Dense (const CoordBBox &bbox)
 Construct a dense grid with a given range of coordinates. More...
 
 Dense (const CoordBBox &bbox, const ValueT &value)
 Construct a dense grid with a given range of coordinates and initial value. More...
 
 Dense (const CoordBBox &bbox, ValueT *data)
 Construct a dense grid that wraps an external array. More...
 
 Dense (const Coord &dim, const Coord &min=Coord(0))
 Construct a dense grid with a given origin and dimensions. More...
 
ValueT * data ()
 Return a raw pointer to this grid's value array. More...
 
const ValueT * data () const
 Return a raw pointer to this grid's value array. More...
 
const CoordBBox & bbox () const
 Return the bounding box of the signed index domain of this grid. More...
 
const Coord & origin () const
 Return the grid's origin in index coordinates. More...
 
Index64 valueCount () const
 Return the number of voxels contained in this grid. More...
 
void setValue (size_t offset, const ValueT &value)
 Set the value of the voxel at the given array offset. More...
 
const ValueT & getValue (size_t offset) const
 Return a const reference to the value of the voxel at the given array offset. More...
 
ValueT & getValue (size_t offset)
 Return a non-const reference to the value of the voxel at the given array offset. More...
 
void setValue (size_t i, size_t j, size_t k, const ValueT &value)
 Set the value of the voxel at unsigned index coordinates (i, j, k). More...
 
const ValueT & getValue (size_t i, size_t j, size_t k) const
 Return a const reference to the value of the voxel at unsigned index coordinates (i, j, k). More...
 
ValueT & getValue (size_t i, size_t j, size_t k)
 Return a non-const reference to the value of the voxel at unsigned index coordinates (i, j, k). More...
 
void setValue (const Coord &xyz, const ValueT &value)
 Set the value of the voxel at the given signed coordinates. More...
 
const ValueT & getValue (const Coord &xyz) const
 Return a const reference to the value of the voxel at the given signed coordinates. More...
 
ValueT & getValue (const Coord &xyz)
 Return a non-const reference to the value of the voxel at the given signed coordinates. More...
 
void fill (const ValueT &value)
 Fill this grid with a constant value. More...
 
size_t coordToOffset (const Coord &xyz) const
 Return the linear offset into this grid's value array given by the specified signed coordinates, i.e., coordinates in the space of this grid's bounding box. More...
 
Coord offsetToCoord (size_t n) const
 Return the global coordinate corresponding to the specified linear offset. More...
 
Index64 memUsage () const
 Return the memory footprint of this Dense grid in bytes. More...
 
void print (const std::string &name="", std::ostream &os=std::cout) const
 Output a human-readable description of this grid to the specified stream. More...
 

Static Public Member Functions

static MemoryLayout memoryLayout ()
 Return the memory layout for this grid (see above for definitions). More...
 

Detailed Description

template<typename ValueT, MemoryLayout Layout = LayoutZYX>
class openvdb::v12_0::tools::Dense< ValueT, Layout >

Dense is a simple dense grid API used by the CopyToDense and CopyFromDense classes defined below.

Use the Dense class to efficiently produce a dense in-memory representation of an OpenVDB grid. However, be aware that a dense grid could have a memory footprint that is orders of magnitude larger than the sparse grid from which it originates.

Note
This class can be used as a simple wrapper for existing dense grid classes if they provide access to the raw data array.
This implementation allows for the 3D memory layout to be defined by the MemoryLayout template parameter (see above for definition). The default memory layout is ZYX since that's the layout used by OpenVDB grids.

Member Typedef Documentation

using BaseT = DenseBase<ValueT, Layout>
using ConstPtr = SharedPtr<const Dense>
using Ptr = SharedPtr<Dense>
using ValueType = ValueT

Constructor & Destructor Documentation

Dense ( const CoordBBox &  bbox)
inline

Construct a dense grid with a given range of coordinates.

Parameters
bboxthe bounding box of the (signed) coordinate range of this grid
Exceptions
ValueErrorif the bounding box is empty.
Note
The min and max coordinates of the bounding box are inclusive.
Dense ( const CoordBBox &  bbox,
const ValueT &  value 
)
inline

Construct a dense grid with a given range of coordinates and initial value.

Parameters
bboxthe bounding box of the (signed) coordinate range of this grid
valuethe initial value of the grid.
Exceptions
ValueErrorif the bounding box is empty.
Note
The min and max coordinates of the bounding box are inclusive.
Dense ( const CoordBBox &  bbox,
ValueT *  data 
)
inline

Construct a dense grid that wraps an external array.

Parameters
bboxthe bounding box of the (signed) coordinate range of this grid
dataa raw C-style array whose size is commensurate with the coordinate domain of bbox
Note
The data array is assumed to have a stride of one in the z direction.
Exceptions
ValueErrorif the bounding box is empty.
Note
The min and max coordinates of the bounding box are inclusive.
Dense ( const Coord &  dim,
const Coord &  min = Coord(0) 
)
inline

Construct a dense grid with a given origin and dimensions.

Parameters
dimthe desired dimensions of the grid
minthe signed coordinates of the first voxel in the dense grid
Exceptions
ValueErrorif any of the dimensions are zero.
Note
The min coordinate is inclusive, and the max coordinate will be min + dim - 1.

Member Function Documentation

const CoordBBox& bbox ( ) const
inline

Return the bounding box of the signed index domain of this grid.

Note
This method is required by both CopyToDense and CopyFromDense.
size_t coordToOffset ( const Coord &  xyz) const
inline

Return the linear offset into this grid's value array given by the specified signed coordinates, i.e., coordinates in the space of this grid's bounding box.

Note
This method reflects the fact that we assume the same layout of values as an OpenVDB grid, i.e., the fastest coordinate is z.
ValueT* data ( )
inline

Return a raw pointer to this grid's value array.

Note
This method is required by CopyToDense.
const ValueT* data ( ) const
inline

Return a raw pointer to this grid's value array.

Note
This method is required by CopyFromDense.
void fill ( const ValueT &  value)
inline

Fill this grid with a constant value.

const ValueT& getValue ( size_t  offset) const
inline

Return a const reference to the value of the voxel at the given array offset.

ValueT& getValue ( size_t  offset)
inline

Return a non-const reference to the value of the voxel at the given array offset.

const ValueT& getValue ( size_t  i,
size_t  j,
size_t  k 
) const
inline

Return a const reference to the value of the voxel at unsigned index coordinates (i, j, k).

Note
This is somewhat slower than using an array offset.
ValueT& getValue ( size_t  i,
size_t  j,
size_t  k 
)
inline

Return a non-const reference to the value of the voxel at unsigned index coordinates (i, j, k).

Note
This is somewhat slower than using an array offset.
const ValueT& getValue ( const Coord &  xyz) const
inline

Return a const reference to the value of the voxel at the given signed coordinates.

Note
This is slower than using either an array offset or unsigned index coordinates.
ValueT& getValue ( const Coord &  xyz)
inline

Return a non-const reference to the value of the voxel at the given signed coordinates.

Note
This is slower than using either an array offset or unsigned index coordinates.
static MemoryLayout memoryLayout ( )
inlinestatic

Return the memory layout for this grid (see above for definitions).

Index64 memUsage ( ) const
inline

Return the memory footprint of this Dense grid in bytes.

Coord offsetToCoord ( size_t  n) const
inline

Return the global coordinate corresponding to the specified linear offset.

const Coord& origin ( ) const
inline

Return the grid's origin in index coordinates.

void print ( const std::string &  name = "",
std::ostream &  os = std::cout 
) const
inline

Output a human-readable description of this grid to the specified stream.

void setValue ( size_t  offset,
const ValueT &  value 
)
inline

Set the value of the voxel at the given array offset.

void setValue ( size_t  i,
size_t  j,
size_t  k,
const ValueT &  value 
)
inline

Set the value of the voxel at unsigned index coordinates (i, j, k).

Note
This is somewhat slower than using an array offset.
void setValue ( const Coord &  xyz,
const ValueT &  value 
)
inline

Set the value of the voxel at the given signed coordinates.

Note
This is slower than using either an array offset or unsigned index coordinates.
Index64 valueCount ( ) const
inline

Return the number of voxels contained in this grid.