MLOpenVDBGridWrapper Class Reference

Inherits QObject.

Public Slots
MLOpenVDBGridWrapper *	deepCopy ()
QVariant	getValueRange () const
bool	hasIsoValue (double isoValue=0.0) const
QVariantList	origin () const
double	resolution () const
MLWEMWrapper *	toWEM (double adaptivity=0.0, double isoValue=0.0)
Constructive solid geometry operations <br>
void	csgDifference (MLOpenVDBGridWrapper *other)
void	csgIntersection (MLOpenVDBGridWrapper *other)
void	csgUnion (MLOpenVDBGridWrapper *other)
Filter operations
void	applyGaussian (double width=1)
void	applyLaplacian ()
void	applyMean (double width=1)
void	applyMeanCurvature ()
void	applyMedian (double width=1)
void	applyOffset (double offset)
void	add (double value)

Friends
class	MLOpenVDBToolsWrapper

Detailed Description

A class which wraps an OpenVDB grid (and some auxillary data).

Member Function Documentation

add

void MLOpenVDBGridWrapper::add ( double  value )

slot

Simply add value to all voxels.

For dilate/erode operations this is faster than applyOffset(), but somewhat less exact (but equal to selecting another isoValue in toWEM() ).

applyGaussian

void MLOpenVDBGridWrapper::applyGaussian ( double  width = 1 )

slot

Apply gaussian filter.

applyLaplacian

void MLOpenVDBGridWrapper::applyLaplacian ( )

slot

Apply laplacian filter.

applyMean

void MLOpenVDBGridWrapper::applyMean ( double  width = 1 )

slot

Apply mean filter.

applyMeanCurvature

void MLOpenVDBGridWrapper::applyMeanCurvature ( )

slot

Apply mean curvature filter.

applyMedian

void MLOpenVDBGridWrapper::applyMedian ( double  width = 1 )

slot

Apply median filter.

applyOffset

void MLOpenVDBGridWrapper::applyOffset ( double  offset )

slot

Apply offset filter with the given offset value.

csgDifference

void MLOpenVDBGridWrapper::csgDifference ( MLOpenVDBGridWrapper *  other )

slot

Subtract other from this grid.

csgIntersection

void MLOpenVDBGridWrapper::csgIntersection ( MLOpenVDBGridWrapper *  other )

slot

Intersection other with this grid.

csgUnion

void MLOpenVDBGridWrapper::csgUnion ( MLOpenVDBGridWrapper *  other )

slot

Create union of other with this grid.

deepCopy

MLOpenVDBGridWrapper* MLOpenVDBGridWrapper::deepCopy ( )

inlineslot

Create a deep copy of this grid.

getValueRange

QVariant MLOpenVDBGridWrapper::getValueRange ( ) const

slot

Return value range of grid as pair (minimum, maximum) or None if grid is empty.

hasIsoValue

bool MLOpenVDBGridWrapper::hasIsoValue ( double  isoValue = 0.0 ) const

slot

Return true if the given isoValue is in the value range of the grid.

Useful if you only want to know if the result of a CSG intersection operation is empty, without needing the resulting surface object.

origin

QVariantList MLOpenVDBGridWrapper::origin ( ) const

slot

Return origin of the grid.

resolution

double MLOpenVDBGridWrapper::resolution ( ) const

inlineslot

Return resolution of the grid.

toWEM

MLWEMWrapper* MLOpenVDBGridWrapper::toWEM ( double  adaptivity = 0.0, double  isoValue = 0.0  )

slot

Create a WEM surface from the level-set.

Parameters

adaptivity	determines how much triangles are reduced
isoValue	the level-set value at which to create the surface

Note

If you use an isoValue different from zero, check that the grid was created with an appropriate bandwidth in MLOpenVDBToolsWrapper::createGrid or MLOpenVDBToolsWrapper::createCompatibleGrid. For positive values the exteriorBandwidth should be at least this value, for negative values the interiorBandwidth should be at least this value negated.

PVLs from the original WEM are currently silently dropped.