vtkPolygon Class Reference

#include <vtkPolygon.h>

Inheritance diagram for vtkPolygon:

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Collaboration diagram for vtkPolygon:

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List of all members.

Detailed Description

a cell that represents an n-sided polygon

vtkPolygon is a concrete implementation of vtkCell to represent a 2D n-sided polygon. The polygons cannot have any internal holes, and cannot self-intersect. Define the polygon with n-points ordered in the counter- clockwise direction; do not repeat the last point.

Examples:: vtkPolygon (Examples)

Tests:: vtkPolygon (Tests)

Definition at line 43 of file vtkPolygon.h.


Public Types
typedef vtkCell	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
double	ComputeArea ()
void	ComputeWeights (double x[3], double *weights)
int	Triangulate (vtkIdList *outTris)
int	NonDegenerateTriangulate (vtkIdList *outTris)

int	GetCellType ()
int	GetCellDimension ()
int	GetNumberOfEdges ()
int	GetNumberOfFaces ()
vtkCell *	GetEdge (int edgeId)
vtkCell *	GetFace (int)
int	CellBoundary (int subId, double pcoords[3], vtkIdList *pts)
void	Contour (double value, vtkDataArray cellScalars, vtkIncrementalPointLocator locator, vtkCellArray verts, vtkCellArray lines, vtkCellArray polys, vtkPointData inPd, vtkPointData outPd, vtkCellData inCd, vtkIdType cellId, vtkCellData *outCd)
void	Clip (double value, vtkDataArray cellScalars, vtkIncrementalPointLocator locator, vtkCellArray tris, vtkPointData inPd, vtkPointData outPd, vtkCellData inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut)
int	EvaluatePosition (double x[3], double closestPoint, int &subId, double pcoords[3], double &dist2, double weights)
void	EvaluateLocation (int &subId, double pcoords[3], double x[3], double *weights)
int	IntersectWithLine (double p1[3], double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId)
int	Triangulate (int index, vtkIdList ptIds, vtkPoints pts)
void	Derivatives (int subId, double pcoords[3], double values, int dim, double derivs)
int	IsPrimaryCell ()

virtual void	InterpolateFunctions (double x[3], double *sf)
virtual void	InterpolateDerivs (double x[3], double *derivs)

int	ParameterizePolygon (double p0[3], double p10[3], double &l10, double p20[3], double &l20, double n[3])

virtual bool	GetUseMVCInterpolation ()
virtual void	SetUseMVCInterpolation (bool)
Static Public Member Functions
static vtkPolygon *	New ()
static int	IsTypeOf (const char *type)
static vtkPolygon *	SafeDownCast (vtkObject *o)
static void	ComputeNormal (int numPts, double *pts, double n[3])

static void	ComputeNormal (vtkPoints p, int numPts, vtkIdType pts, double n[3])
static void	ComputeNormal (vtkPoints *p, double n[3])
static void	ComputeNormal (vtkIdTypeArray ids, vtkPoints pts, double n[3])

static void	ComputeCentroid (vtkIdTypeArray ids, vtkPoints pts, double centroid[3])

static double	ComputeArea (vtkPoints p, vtkIdType numPts, vtkIdType pts, double normal[3])

static int	PointInPolygon (double x[3], int numPts, double *pts, double bounds[6], double n[3])

static double	DistanceToPolygon (double x[3], int numPts, double *pts, double bounds[6], double closest[3])

static int	IntersectPolygonWithPolygon (int npts, double pts, double bounds[6], int npts2, double pts2, double bounds2[3], double tol, double x[3])

static int	IntersectConvex2DCells (vtkCell cell1, vtkCell cell2, double tol, double p0[3], double p1[3])
Protected Member Functions
	vtkPolygon ()
	~vtkPolygon ()
void	InterpolateFunctionsUsingMVC (double x[3], double *weights)
int	EarCutTriangulation ()
Protected Attributes
double	Tolerance
int	SuccessfulTriangulation
double	Normal [3]
vtkIdList *	Tris
vtkTriangle *	Triangle
vtkQuad *	Quad
vtkDoubleArray *	TriScalars
vtkLine *	Line
bool	UseMVCInterpolation

Member Typedef Documentation

typedef vtkCell vtkPolygon::Superclass

Reimplemented from vtkCell.

Definition at line 47 of file vtkPolygon.h.

Constructor & Destructor Documentation

vtkPolygon::vtkPolygon ( ) [protected]

vtkPolygon::~vtkPolygon ( ) [protected]

Member Function Documentation

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

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

Reimplemented from vtkObject.

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

Reimplemented from vtkCell.

static int vtkPolygon::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 vtkCell.

virtual int vtkPolygon::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 vtkCell.

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

Reimplemented from vtkCell.

void vtkPolygon::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 vtkCell.

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