vtkConvexPointSet Class Reference

#include <vtkConvexPointSet.h>

Inheritance diagram for vtkConvexPointSet:

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Collaboration diagram for vtkConvexPointSet:

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List of all members.

Detailed Description

a 3D cell defined by a set of convex points

vtkConvexPointSet is a concrete implementation that represents a 3D cell defined by a convex set of points. An example of such a cell is an octant (from an octree). vtkConvexPointSet uses the ordered triangulations approach (vtkOrderedTriangulator) to create triangulations guaranteed to be compatible across shared faces. This allows a general approach to processing complex, convex cell types.

See also:: vtkHexahedron vtkPyramid vtkTetra vtkVoxel vtkWedge

Tests:: vtkConvexPointSet (Tests)

Definition at line 43 of file vtkConvexPointSet.h.


Public Types
typedef vtkCell3D	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
virtual int	HasFixedTopology ()
virtual int	GetCellType ()
virtual int	Triangulate (int index, vtkIdList ptIds, vtkPoints pts)
virtual int	CellBoundary (int subId, double pcoords[3], vtkIdList *pts)
virtual int	GetParametricCenter (double pcoords[3])
int	IsPrimaryCell ()

virtual void	GetEdgePoints (int vtkNotUsed(edgeId), int *&vtkNotUsed(pts))
virtual void	GetFacePoints (int vtkNotUsed(faceId), int *&vtkNotUsed(pts))
virtual double *	GetParametricCoords ()

virtual int	RequiresInitialization ()
virtual void	Initialize ()

virtual int	GetNumberOfEdges ()
virtual vtkCell *	GetEdge (int)
virtual int	GetNumberOfFaces ()
virtual vtkCell *	GetFace (int faceId)

virtual void	Contour (double value, vtkDataArray cellScalars, vtkIncrementalPointLocator locator, vtkCellArray verts, vtkCellArray lines, vtkCellArray polys, vtkPointData inPd, vtkPointData outPd, vtkCellData inCd, vtkIdType cellId, vtkCellData *outCd)

virtual void	Clip (double value, vtkDataArray cellScalars, vtkIncrementalPointLocator locator, vtkCellArray connectivity, vtkPointData inPd, vtkPointData outPd, vtkCellData inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut)

virtual int	EvaluatePosition (double x[3], double closestPoint, int &subId, double pcoords[3], double &dist2, double weights)

virtual void	EvaluateLocation (int &subId, double pcoords[3], double x[3], double *weights)

virtual int	IntersectWithLine (double p1[3], double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId)

virtual void	Derivatives (int subId, double pcoords[3], double values, int dim, double derivs)

virtual void	InterpolateFunctions (double pcoords[3], double *sf)
virtual void	InterpolateDerivs (double pcoords[3], double *derivs)
Static Public Member Functions
static vtkConvexPointSet *	New ()
static int	IsTypeOf (const char *type)
static vtkConvexPointSet *	SafeDownCast (vtkObject *o)
Protected Member Functions
	vtkConvexPointSet ()
	~vtkConvexPointSet ()
Protected Attributes
vtkTetra *	Tetra
vtkIdList *	TetraIds
vtkPoints *	TetraPoints
vtkDoubleArray *	TetraScalars
vtkCellArray *	BoundaryTris
vtkTriangle *	Triangle
vtkDoubleArray *	ParametricCoords

Member Typedef Documentation

typedef vtkCell3D vtkConvexPointSet::Superclass

Reimplemented from vtkCell3D.

Definition at line 47 of file vtkConvexPointSet.h.

Constructor & Destructor Documentation

vtkConvexPointSet::vtkConvexPointSet ( ) [protected]

vtkConvexPointSet::~vtkConvexPointSet ( ) [protected]

Member Function Documentation

static vtkConvexPointSet* vtkConvexPointSet::New ( ) [static]

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

Reimplemented from vtkObject.

virtual const char* vtkConvexPointSet::GetClassName ( ) [virtual]

Reimplemented from vtkCell3D.

static int vtkConvexPointSet::IsTypeOf ( const char * name ) [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkCell3D.

virtual int vtkConvexPointSet::IsA ( const char * name ) [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkCell3D.

static vtkConvexPointSet* vtkConvexPointSet::SafeDownCast ( vtkObject * o ) [static]

Reimplemented from vtkCell3D.

void vtkConvexPointSet::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 vtkCell3D.

virtual int vtkConvexPointSet::HasFixedTopology ( ) [inline, virtual]

See vtkCell3D API for description of this method.

Definition at line 51 of file vtkConvexPointSet.h.

virtual void vtkConvexPointSet::GetEdgePoints	(	int	vtkNotUsededgeId,
		int *&	vtkNotUsedpts
	)			`[inline, virtual]`

See vtkCell3D API for description of these methods.

Definition at line 55 of file vtkConvexPointSet.h.

virtual void vtkConvexPointSet::GetFacePoints	(	int	vtkNotUsedfaceId,
		int *&	vtkNotUsedpts
	)			`[inline, virtual]`

See vtkCell3D API for description of these methods.

Definition at line 56 of file vtkConvexPointSet.h.

virtual double* vtkConvexPointSet::GetParametricCoords ( ) [virtual]

See vtkCell3D API for description of these methods.

Reimplemented from vtkCell.

virtual int vtkConvexPointSet::GetCellType ( ) [inline, virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 61 of file vtkConvexPointSet.h.

virtual int vtkConvexPointSet::RequiresInitialization ( ) [inline, virtual]

This cell requires that it be initialized prior to access.

Reimplemented from vtkCell.

Definition at line 65 of file vtkConvexPointSet.h.

virtual void vtkConvexPointSet::Initialize ( ) [virtual]

This cell requires that it be initialized prior to access.

Reimplemented from vtkCell.

virtual int vtkConvexPointSet::GetNumberOfEdges ( ) [inline, virtual]

A convex point set has no explicit cell edge or faces; however implicitly (after triangulation) it does. Currently the method GetNumberOfEdges() always returns 0 while the GetNumberOfFaces() returns the number of boundary triangles of the triangulation of the convex point set. The method GetNumberOfFaces() triggers a triangulation of the convex point set; repeated calls to GetFace() then return the boundary faces. (Note: GetNumberOfEdges() currently returns 0 because it is a rarely used method and hard to implement. It can be changed in the future.

Implements vtkCell.

Definition at line 79 of file vtkConvexPointSet.h.

virtual vtkCell* vtkConvexPointSet::GetEdge ( int ) [inline, virtual]

A convex point set has no explicit cell edge or faces; however implicitly (after triangulation) it does. Currently the method GetNumberOfEdges() always returns 0 while the GetNumberOfFaces() returns the number of boundary triangles of the triangulation of the convex point set. The method GetNumberOfFaces() triggers a triangulation of the convex point set; repeated calls to GetFace() then return the boundary faces. (Note: GetNumberOfEdges() currently returns 0 because it is a rarely used method and hard to implement. It can be changed in the future.

Implements vtkCell.

Definition at line 80 of file vtkConvexPointSet.h.

virtual int vtkConvexPointSet::GetNumberOfFaces ( ) [virtual]

A convex point set has no explicit cell edge or faces; however implicitly (after triangulation) it does. Currently the method GetNumberOfEdges() always returns 0 while the GetNumberOfFaces() returns the number of boundary triangles of the triangulation of the convex point set. The method GetNumberOfFaces() triggers a triangulation of the convex point set; repeated calls to GetFace() then return the boundary faces. (Note: GetNumberOfEdges() currently returns 0 because it is a rarely used method and hard to implement. It can be changed in the future.

Implements vtkCell.

virtual vtkCell* vtkConvexPointSet::GetFace ( int faceId ) [virtual]

A convex point set has no explicit cell edge or faces; however implicitly (after triangulation) it does. Currently the method GetNumberOfEdges() always returns 0 while the GetNumberOfFaces() returns the number of boundary triangles of the triangulation of the convex point set. The method GetNumberOfFaces() triggers a triangulation of the convex point set; repeated calls to GetFace() then return the boundary faces. (Note: GetNumberOfEdges() currently returns 0 because it is a rarely used method and hard to implement. It can be changed in the future.

Implements vtkCell.

virtual void vtkConvexPointSet::Contour	(	double	value,
		vtkDataArray *	cellScalars,
		vtkIncrementalPointLocator *	locator,
		vtkCellArray *	verts,
		vtkCellArray *	lines,
		vtkCellArray *	polys,
		vtkPointData *	inPd,
		vtkPointData *	outPd,
		vtkCellData *	inCd,
		vtkIdType	cellId,
		vtkCellData *	outCd
	)			`[virtual]`

Satisfy the vtkCell API. This method contours by triangulating the cell and then contouring the resulting tetrahedra.

Reimplemented from vtkCell3D.

virtual void vtkConvexPointSet::Clip	(	double	value,
		vtkDataArray *	cellScalars,
		vtkIncrementalPointLocator *	locator,
		vtkCellArray *	connectivity,
		vtkPointData *	inPd,
		vtkPointData *	outPd,
		vtkCellData *	inCd,
		vtkIdType	cellId,
		vtkCellData *	outCd,
		int	insideOut
	)			`[virtual]`

Satisfy the vtkCell API. This method contours by triangulating the cell and then adding clip-edge intersection points into the triangulation; extracting the clipped region.

Reimplemented from vtkCell3D.

virtual int vtkConvexPointSet::EvaluatePosition	(	double	x[3],
		double *	closestPoint,
		int &	subId,
		double	pcoords[3],
		double &	dist2,
		double *	weights
	)			`[virtual]`

Satisfy the vtkCell API. This method determines the subId, pcoords, and weights by triangulating the convex point set, and then determining which tetrahedron the point lies in.

Implements vtkCell.

virtual void vtkConvexPointSet::EvaluateLocation	(	int &	subId,
		double	pcoords[3],
		double	x[3],
		double *	weights
	)			`[virtual]`

The inverse of EvaluatePosition.

Implements vtkCell.

virtual int vtkConvexPointSet::IntersectWithLine	(	double	p1[3],
		double	p2[3],
		double	tol,
		double &	t,
		double	x[3],
		double	pcoords[3],
		int &	subId
	)			`[virtual]`

Triangulates the cells and then intersects them to determine the intersection point.

Implements vtkCell.

virtual int vtkConvexPointSet::Triangulate	(	int	index,
		vtkIdList *	ptIds,
		vtkPoints *	pts
	)			`[virtual]`

Triangulate using methods of vtkOrderedTriangulator.

Implements vtkCell.

virtual void vtkConvexPointSet::Derivatives	(	int	subId,
		double	pcoords[3],
		double *	values,
		int	dim,
		double *	derivs
	)			`[virtual]`

Computes derivatives by triangulating and from subId and pcoords, evaluating derivatives on the resulting tetrahedron.

Implements vtkCell.

virtual int vtkConvexPointSet::CellBoundary	(	int	subId,
		double	pcoords[3],
		vtkIdList *	pts
	)			`[virtual]`

Returns the set of points forming a face of the triangulation of these points that are on the boundary of the cell that are closest parametrically to the point specified.

Implements vtkCell.

int vtkConvexPointSet::GetParametricCenter ( double pcoords[3] ) [inline, virtual]

Return the center of the cell in parametric coordinates.

Reimplemented from vtkCell.

Definition at line 176 of file vtkConvexPointSet.h.

int vtkConvexPointSet::IsPrimaryCell ( ) [inline, virtual]

A convex point set is triangulated prior to any operations on it so it is not a primary cell, it is a composite cell.

Reimplemented from vtkCell.

Definition at line 148 of file vtkConvexPointSet.h.