vtkPointsProjectedHull Class Reference

the convex hull of the orthogonal projection of the vtkPoints in the 3 coordinate directions More...

#include <vtkPointsProjectedHull.h>

Inheritance diagram for vtkPointsProjectedHull:

[legend]

Collaboration diagram for vtkPointsProjectedHull:

[legend]

List of all members.

Public Member Functions
void	PrintSelf (ostream &os, vtkIndent indent)
int	RectangleIntersectionX (vtkPoints *R)
int	RectangleIntersectionX (float ymin, float ymax, float zmin, float zmax)
int	RectangleIntersectionX (double ymin, double ymax, double zmin, double zmax)
int	RectangleIntersectionY (vtkPoints *R)
int	RectangleIntersectionY (float zmin, float zmax, float xmin, float xmax)
int	RectangleIntersectionY (double zmin, double zmax, double xmin, double xmax)
int	RectangleIntersectionZ (vtkPoints *R)
int	RectangleIntersectionZ (float xmin, float xmax, float ymin, float ymax)
int	RectangleIntersectionZ (double xmin, double xmax, double ymin, double ymax)
int	GetCCWHullX (float *pts, int len)
int	GetCCWHullX (double *pts, int len)
int	GetCCWHullY (float *pts, int len)
int	GetCCWHullY (double *pts, int len)
int	GetCCWHullZ (float *pts, int len)
int	GetCCWHullZ (double *pts, int len)
int	GetSizeCCWHullX ()
int	GetSizeCCWHullY ()
int	GetSizeCCWHullZ ()
void	Initialize ()
void	Reset ()
void	Update ()
Static Public Member Functions
static vtkPointsProjectedHull *	New ()
Protected Member Functions
	vtkPointsProjectedHull ()
	~vtkPointsProjectedHull ()

---

Detailed Description

the convex hull of the orthogonal projection of the vtkPoints in the 3 coordinate directions

a subclass of vtkPoints, it maintains the counter clockwise convex hull of the points (projected orthogonally in the three coordinate directions) and has a method to test for intersection of that hull with an axis aligned rectangle. This is used for intersection tests of 3D volumes.

Definition at line 36 of file vtkPointsProjectedHull.h.

---

Constructor & Destructor Documentation

vtkPointsProjectedHull::vtkPointsProjectedHull

(

)

[protected]

vtkPointsProjectedHull::~vtkPointsProjectedHull

(

)

[protected]

---

Member Function Documentation

void vtkPointsProjectedHull::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)			[virtual]

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkPoints.

static vtkPointsProjectedHull* vtkPointsProjectedHull::New

(

)

[static]

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkPoints.

int vtkPointsProjectedHull::RectangleIntersectionX

(

vtkPoints *

R

)

determine whether the resulting rectangle intersects the convex hull of the projection of the points along that axis.

int vtkPointsProjectedHull::RectangleIntersectionX	(	float	ymin,
		float	ymax,
		float	zmin,
		float	zmax
	)

the convex hull of the projection of the points along the positive X-axis.

int vtkPointsProjectedHull::RectangleIntersectionX	(	double	ymin,
		double	ymax,
		double	zmin,
		double	zmax
	)

int vtkPointsProjectedHull::RectangleIntersectionY

(

vtkPoints *

R

)

of the parallel projection along the Y axis of the points

int vtkPointsProjectedHull::RectangleIntersectionY	(	float	zmin,
		float	zmax,
		float	xmin,
		float	xmax
	)

the convex hull of the projection of the points along the positive Y-axis.

int vtkPointsProjectedHull::RectangleIntersectionY	(	double	zmin,
		double	zmax,
		double	xmin,
		double	xmax
	)

int vtkPointsProjectedHull::RectangleIntersectionZ

(

vtkPoints *

R

)

of the parallel projection along the Z axis of the points

int vtkPointsProjectedHull::RectangleIntersectionZ	(	float	xmin,
		float	xmax,
		float	ymin,
		float	ymax
	)

the convex hull of the projection of the points along the positive Z-axis.

int vtkPointsProjectedHull::RectangleIntersectionZ	(	double	xmin,
		double	xmax,
		double	ymin,
		double	ymax
	)

int vtkPointsProjectedHull::GetCCWHullX	(	float *	pts,
		int	len
	)

Returns the coordinates (y,z) of the points in the convex hull of the projection of the points down the positive x-axis. pts has storage for len*2 values.

int vtkPointsProjectedHull::GetCCWHullX	(	double *	pts,
		int	len
	)

int vtkPointsProjectedHull::GetCCWHullY	(	float *	pts,
		int	len
	)

Returns the coordinates (z, x) of the points in the convex hull of the projection of the points down the positive y-axis. pts has storage for len*2 values.

int vtkPointsProjectedHull::GetCCWHullY	(	double *	pts,
		int	len
	)

int vtkPointsProjectedHull::GetCCWHullZ	(	float *	pts,
		int	len
	)

Returns the coordinates (x, y) of the points in the convex hull of the projection of the points down the positive z-axis. pts has storage for len*2 values.

int vtkPointsProjectedHull::GetCCWHullZ	(	double *	pts,
		int	len
	)

int vtkPointsProjectedHull::GetSizeCCWHullX

(

)

Returns the number of points in the convex hull of the projection of the points down the positive x-axis

int vtkPointsProjectedHull::GetSizeCCWHullY

(

)

Returns the number of points in the convex hull of the projection of the points down the positive y-axis

int vtkPointsProjectedHull::GetSizeCCWHullZ

(

)

Returns the number of points in the convex hull of the projection of the points down the positive z-axis

void vtkPointsProjectedHull::Initialize

(

)

[virtual]

Return object to instantiated state.

Reimplemented from vtkPoints.

void vtkPointsProjectedHull::Reset

(

)

[inline, virtual]

Make object look empty but do not delete memory.

Reimplemented from vtkPoints.

Definition at line 113 of file vtkPointsProjectedHull.h.

void vtkPointsProjectedHull::Update

(

)

Forces recalculation of convex hulls, use this if you delete/add points

---

The documentation for this class was generated from the following file:

• dox/Graphics/vtkPointsProjectedHull.h