Defines the volume data to be used with a MarchingCube object. More...

#include <MarchingCubes.hpp>

Inheritance diagram for vl::Volume:

Classes
struct	Cube
	A Volume cell.
Public Member Functions
	Volume ()
void	setup (float *data, bool use_directly, bool copy_data, const fvec3 &bottom_left, const fvec3 &top_right, const ivec3 &slices)
	Setup the volume data with the specified memory management.
void	setup (const Volume &)
ref< Volume >	downsample () const
	Returns a new volume which is half of the size of the original volume in each direction (thus requires up to 1/8th of the memory).
const float *	values () const
float *	values ()
const float &	value (int i) const
float &	value (int i)
const float &	value (int x, int y, int z) const
float &	value (int x, int y, int z)
void	normalHQ (fvec3 &normal, const fvec3 &v, float dx, float dy, float dz)
	Computes a high quality normal (best rendering quality)
void	normalLQ (fvec3 &normal, const fvec3 &v, float dx, float dy, float dz)
	Computes a low quality normal (best performances)
float	sampleSmooth (float x, float y, float z) const
	Samples the volume using tri-linear interpolation sampling.
float	sampleNearest (float x, float y, float z) const
	Samples the volume using nearest point sampling.
fvec3	coordinate (int x, int y, int z) const
const fvec3 &	bottomLeft () const
const fvec3 &	topRight () const
const ivec3 &	slices () const
fvec3	size () const
float	computeMinimum () const
float	computeMaximum () const
float	computeAverage () const
float	minimum () const
float	maximum () const
float	average () const
const Volume::Cube &	cube (int x, int y, int z) const
const fvec3 &	cellSize () const
	Returns the x/y/z size of a cell.
bool	dataIsDirty () const
	Returns true if the internal data hasn't been updated since the last call to setDataDirty() or setup()
void	setDataDirty ()
	Notifies that the data of a Volume has changed and that the internal acceleration structures should be recomputed.
void	setupInternalData ()
Protected Attributes
std::vector< float >	mInternalValues
float *	mValues
fvec3	mBottomLeft
fvec3	mTopRight
fvec3	mSize
ivec3	mSlices
fvec3	mCellSize
float	mMinimum
float	mMaximum
float	mAverage
bool	mDataIsDirty
std::vector< Cube >	mCubes

Detailed Description

Defines the volume data to be used with a MarchingCube object.

Definition at line 46 of file MarchingCubes.hpp.

Constructor & Destructor Documentation

Volume::Volume ( )

Definition at line 458 of file MarchingCubes.cpp.

References NULL, setup(), and VL_DEBUG_SET_OBJECT_NAME.

Referenced by downsample().

Member Function Documentation

void Volume::setup	(	float *	data,
		bool	use_directly,
		bool	copy_data,
		const fvec3 &	bottom_left,
		const fvec3 &	top_right,
		const ivec3 &	slices
	)

Setup the volume data with the specified memory management.

Parameters:

data	The buffer containing the volume data. Can be NULL only if `use_directly` == `false` and `copy_data` == `false`.
use_directly	If `true` the buffer will be used directly and no internal copy will be done.
copy_data	If `true` the buffer pointed by `data` will be copied in the internal buffer used to store the volume data. The `copy_data` parameter is ignored if `use_directly` is set to `true`.