VHTK::GradientKernel Class Reference
[Volumetric Data Nodes]

List of all members.

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Detailed Description

This class is primarily used by other parts of the toolkit and should generally not be accessed directly.

The GradientKernel class contains a size variable gradient calculation kernel. Upon instanciation the size is specified as the radius of the kernel from zero, corresponding to a 2x2x2 kernel (0.5 voxels in radius), up to any value which the processor can handle at the desired update rate.

Public Member Functions
	GradientKernel (int size)
	Creates a gradient kernel of the specified size, which may be any integer number from zero and up.
template<class T>
H3D::Vec3f	getGradient (H3D::H3DFloat x, H3D::H3DFloat y, H3D::H3DFloat z, T *data, int maxx, int maxy, int maxz) const
	Calculates the gradient vector.
H3D::Vec3f	getGradient (H3D::H3DFloat x, H3D::H3DFloat y, H3D::H3DFloat z, H3D::Vec3f *data, int maxx, int maxy, int maxz) const
	Calculates the gradient vector.
H3D::Vec3f	getCurl (H3D::H3DFloat px, H3D::H3DFloat py, H3D::H3DFloat pz, H3D::Vec3f *data, int maxx, int maxy, int maxz) const
	Calculates the vector curl.
H3D::H3DFloat	getDivergence (H3D::H3DFloat px, H3D::H3DFloat py, H3D::H3DFloat pz, H3D::Vec3f *data, int maxx, int maxy, int maxz) const
	Calculates the vector divergence.
template<class T>
H3D::Vec3f	getGradient (int x, int y, int z, T *data, int maxx, int maxy, int maxz) const
	Calculates the gradient vector.
int	getSize () const
	Returns the size of the kernel.
Protected Attributes
int	length
int	size
int *	dx
int *	dy
int *	dz
H3D::H3DFloat *	vx
H3D::H3DFloat *	vy
H3D::H3DFloat *	vz

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Constructor & Destructor Documentation

VHTK::GradientKernel::GradientKernel

(

int

size

)

[inline]

Creates a gradient kernel of the specified size, which may be any integer number from zero and up.

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Member Function Documentation

template<class T>

H3D::Vec3f VHTK::GradientKernel::getGradient	(	H3D::H3DFloat	x,
		H3D::H3DFloat	y,
		H3D::H3DFloat	z,
		T *	data,
		int	maxx,
		int	maxy,
		int	maxz
	)			const [inline]

Calculates the gradient vector.

The vector is defined in local coordinates and thus have to be rotated to the global coordinates (but not scaled).

H3D::Vec3f VHTK::GradientKernel::getGradient	(	H3D::H3DFloat	x,
		H3D::H3DFloat	y,
		H3D::H3DFloat	z,
		H3D::Vec3f *	data,
		int	maxx,
		int	maxy,
		int	maxz
	)			const [inline]

Calculates the gradient vector.

The vector is defined in local coordinates and thus have to be rotated to the global coordinates (but not scaled).

H3D::Vec3f VHTK::GradientKernel::getCurl	(	H3D::H3DFloat	px,
		H3D::H3DFloat	py,
		H3D::H3DFloat	pz,
		H3D::Vec3f *	data,
		int	maxx,
		int	maxy,
		int	maxz
	)			const [inline]

Calculates the vector curl.

H3D::H3DFloat VHTK::GradientKernel::getDivergence	(	H3D::H3DFloat	px,
		H3D::H3DFloat	py,
		H3D::H3DFloat	pz,
		H3D::Vec3f *	data,
		int	maxx,
		int	maxy,
		int	maxz
	)			const [inline]

Calculates the vector divergence.

template<class T>

H3D::Vec3f VHTK::GradientKernel::getGradient	(	int	x,
		int	y,
		int	z,
		T *	data,
		int	maxx,
		int	maxy,
		int	maxz
	)			const [inline]

Calculates the gradient vector.

The vector is defined in local coordinates.

int VHTK::GradientKernel::getSize

(

)

const [inline]

Returns the size of the kernel.