multipr.DecimationAccelGrid Class Reference

#include <MULTIPR_DecimationAccel.hxx>

Inheritance diagram for multipr.DecimationAccelGrid:

Public Member Functions
	DecimationAccelGrid ()
	Builds an empty DecimationAccelGrid (default constructor).
virtual	~DecimationAccelGrid ()
	Destructor.
void	reset ()
	Resets this object in its state by default (empty).
virtual void	configure (const char *pArgv)
	Configures this acceleration structure.
virtual void	create (const std::vector< PointOfField > &pPts)
	Creates a new acceleration structure and fills it with the given list of points.
virtual std::vector< PointOfField >	findNeighbours (med_float pCenterX, med_float pCenterY, med_float pCenterZ, med_float pRadius) const
	Finds all the points in a sphere defined by its center (x,y,z) and its radius.
void	getCellCoord (med_float pX, med_float pY, med_float pZ, int pIx, int pIy, int *pIz) const
	Returns the coordinates of the cell which contain the point (x,y,z).
int	getCellIndex (int pI, int pJ, int pK) const
	Returns the index of the cell whose coordinates are (i, j, k).
std::vector< PointOfField > &	getCell (const PointOfField &pPt)
	Returns the list of points contained in the cell of pPt.
void	computeBBox (const std::vector< PointOfField > &pPts)
	Computes the axis-aligned bounding box of a set of points.
	DecimationAccelGrid (const DecimationAccelGrid &)
DecimationAccelGrid &	operator= (const DecimationAccelGrid &)
bool	operator== (const DecimationAccelGrid &)
Data Fields
int	mNum
	Number of points in the grid.
med_float	mMin [3]
	Bounding box, min corner.
med_float	mMax [3]
	Bounding box, max corner.
med_float	mInvLen [3]
	1/length of cells, along each dimension; used to accelerate getCellCoord().
med_int	mSize [3]
	Number of cells along each dimension.
std::vector< PointOfField > *	mGrid
	Flatten grid structure; each cell is a vector of PointOfField.
Friends
std::ostream &	operator<< (std::ostream &pOs, DecimationAccelGrid &pG)
	Dumps any GaussLoc to the given output stream.

Constructor & Destructor Documentation

multipr.DecimationAccelGrid::DecimationAccelGrid ( )

Builds an empty DecimationAccelGrid (default constructor).

References multipr.DecimationAccelGrid.mGrid, NULL, and multipr.DecimationAccelGrid.reset().

multipr.DecimationAccelGrid::~DecimationAccelGrid ( ) [virtual]

Destructor.

Removes everything.

References multipr.DecimationAccelGrid.reset().

multipr.DecimationAccelGrid.DecimationAccelGrid ( const DecimationAccelGrid & )

Member Function Documentation

void multipr.DecimationAccelGrid::reset ( )

Resets this object in its state by default (empty).

Cleans memory.

References multipr.DecimationAccel.mFlagPrintAll, multipr.DecimationAccelGrid.mGrid, multipr.DecimationAccelGrid.mInvLen, multipr.DecimationAccelGrid.mMax, multipr.DecimationAccelGrid.mMin, multipr.DecimationAccelGrid.mNum, multipr.DecimationAccelGrid.mSize, and NULL.

void multipr.DecimationAccelGrid::configure ( const char * pArgv ) [virtual]

Configures this acceleration structure.

String is used for genericity.

Parameters:

pArgv

assumes "size_x size_y size_z": number of cells along each axis.

Implements multipr.DecimationAccel.

References multipr.DecimationAccelGrid.mSize, NULL, multipr.DecimationAccelGrid.reset(), and testMEDMEM.ret.

void multipr.DecimationAccelGrid::create ( const std::vector< PointOfField > & pPts ) [virtual]

Creates a new acceleration structure and fills it with the given list of points.

setSize() must have been called before.

Parameters:

pPts

list of points to be inserted in the acceleration structure.

Exceptions:

IllegalStateException

if setSize() has not been called before.

Implements multipr.DecimationAccel.

References multipr.DecimationAccelGrid.computeBBox(), multipr.DecimationAccelGrid.getCell(), multipr.DecimationAccelGrid.mGrid, multipr.DecimationAccelGrid.mNum, multipr.DecimationAccelGrid.mSize, and test_NonCoincidentDEC.size.

vector< PointOfField > multipr.DecimationAccelGrid::findNeighbours	(	med_float	pCenterX,
		med_float	pCenterY,
		med_float	pCenterZ,
		med_float	pRadius
	)			const `[virtual]`

Finds all the points in a sphere defined by its center (x,y,z) and its radius.

Parameters:

	pCenterX	x-coordinates of the center of the sphere.
	pCenterY	y-coordinates of the center of the sphere.
	pCenterZ	z-coordinates of the center of the sphere.
	pRadius	radius of the sphere.

Returns:: all the points in a sphere defined by its center (x,y,z) and its radius.

Implements multipr.DecimationAccel.

References multipr.DecimationAccelGrid.getCellCoord(), multipr.DecimationAccelGrid.getCellIndex(), multipr.DecimationAccelGrid.mGrid, multipr.PointOfField.mXYZ, and med_test1.norm.

void multipr.DecimationAccelGrid::getCellCoord	(	med_float	pX,
		med_float	pY,
		med_float	pZ,
		int *	pIx,
		int *	pIy,
		int *	pIz
	)			const

Returns the coordinates of the cell which contain the point (x,y,z).

Clamping is performed on (pIx, pIy, pIz) to avoid out of bounds.

Parameters:

	pX	(in) X-coordinates of the point.
	pY	(in) Y-coordinates of the point.
	pZ	(in) Z-coordinates of the point.
	pIx	(out) X-index of the cell which contain the point (x,y,z).
	pIy	(out) Y-index.
	pIz	(out) Z-index.