vtkPixel Class Reference

a cell that represents an orthogonal quadrilateral More...

#include <vtkPixel.h>

Inheritance diagram for vtkPixel:

Collaboration diagram for vtkPixel:

List of all members.

Public Types
typedef vtkCell	Superclass
Public Member Functions
virtual int	IsA (const char *type)
vtkPixel *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent)
int	GetParametricCenter (double pcoords[3])
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)
virtual double *	GetParametricCoords ()
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 *polys, 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)
virtual void	InterpolateFunctions (double pcoords[3], double weights[4])
virtual void	InterpolateDerivs (double pcoords[3], double derivs[8])
Static Public Member Functions
static vtkPixel *	New ()
static int	IsTypeOf (const char *type)
static vtkPixel *	SafeDownCast (vtkObjectBase *o)
static void	InterpolationFunctions (double pcoords[3], double weights[4])
static void	InterpolationDerivs (double pcoords[3], double derivs[8])
Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkPixel ()
	~vtkPixel ()
Protected Attributes
vtkLine *	Line

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Detailed Description

a cell that represents an orthogonal quadrilateral

vtkPixel is a concrete implementation of vtkCell to represent a 2D orthogonal quadrilateral. Unlike vtkQuad, the corners are at right angles, and aligned along x-y-z coordinate axes leading to large increases in computational efficiency.

Examples:

vtkPixel (Examples)

Tests:

vtkPixel (Tests)

Definition at line 39 of file vtkPixel.h.

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Member Typedef Documentation

typedef vtkCell vtkPixel::Superclass

Reimplemented from vtkCell.

Definition at line 43 of file vtkPixel.h.

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Constructor & Destructor Documentation

vtkPixel::vtkPixel

(

)

[protected]

vtkPixel::~vtkPixel

(

)

[protected]

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Member Function Documentation

static vtkPixel* vtkPixel::New

(

)

[static]

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

Reimplemented from vtkObject.

static int vtkPixel::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 vtkPixel::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 vtkPixel* vtkPixel::SafeDownCast

(

vtkObjectBase *

o

)

[static]

Reimplemented from vtkCell.

virtual vtkObjectBase* vtkPixel::NewInstanceInternal

(

)

const [protected, virtual]

Reimplemented from vtkCell.

vtkPixel* vtkPixel::NewInstance

(

)

const

Reimplemented from vtkCell.

void vtkPixel::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 vtkPixel::GetCellType

(

)

[inline, virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 48 of file vtkPixel.h.

int vtkPixel::GetCellDimension

(

)

[inline, virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 49 of file vtkPixel.h.

int vtkPixel::GetNumberOfEdges

(

)

[inline, virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 50 of file vtkPixel.h.

int vtkPixel::GetNumberOfFaces

(

)

[inline, virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 51 of file vtkPixel.h.

vtkCell* vtkPixel::GetEdge

(

int

edgeId

)

[virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

vtkCell* vtkPixel::GetFace

(

int

)

[inline, virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 53 of file vtkPixel.h.

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

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

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

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

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

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

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

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

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

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

int vtkPixel::GetParametricCenter

(

double

pcoords[3]

)

[inline, virtual]

Return the center of the triangle in parametric coordinates.

Reimplemented from vtkCell.

Definition at line 111 of file vtkPixel.h.

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

Intersect with a ray. Return parametric coordinates (both line and cell) and global intersection coordinates, given ray definition and tolerance. The method returns non-zero value if intersection occurs.

Implements vtkCell.

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

Generate simplices of proper dimension. If cell is 3D, tetrahedron are generated; if 2D triangles; if 1D lines; if 0D points. The form of the output is a sequence of points, each n+1 points (where n is topological cell dimension) defining a simplex. The index is a parameter that controls which triangulation to use (if more than one is possible). If numerical degeneracy encountered, 0 is returned, otherwise 1 is returned. This method does not insert new points: all the points that define the simplices are the points that define the cell.

Implements vtkCell.

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

Compute derivatives given cell subId and parametric coordinates. The values array is a series of data value(s) at the cell points. There is a one-to-one correspondence between cell point and data value(s). Dim is the number of data values per cell point. Derivs are derivatives in the x-y-z coordinate directions for each data value. Thus, if computing derivatives for a scalar function in a hexahedron, dim=1, 8 values are supplied, and 3 deriv values are returned (i.e., derivatives in x-y-z directions). On the other hand, if computing derivatives of velocity (vx,vy,vz) dim=3, 24 values are supplied ((vx,vy,vz)1, (vx,vy,vz)2, ....()8), and 9 deriv values are returned ((d(vx)/dx),(d(vx)/dy),(d(vx)/dz), (d(vy)/dx),(d(vy)/dy), (d(vy)/dz), (d(vz)/dx),(d(vz)/dy),(d(vz)/dz)).

Implements vtkCell.

virtual double* vtkPixel::GetParametricCoords

(

)

[virtual]

Return a contiguous array of parametric coordinates of the points defining this cell. In other words, (px,py,pz, px,py,pz, etc..) The coordinates are ordered consistent with the definition of the point ordering for the cell. This method returns a non-NULL pointer when the cell is a primary type (i.e., IsPrimaryCell() is true). Note that 3D parametric coordinates are returned no matter what the topological dimension of the cell.

Reimplemented from vtkCell.

static void vtkPixel::InterpolationFunctions	(	double	pcoords[3],
		double	weights[4]
	)		[static]

Deprecated:

Replaced by vtkPixel::InterpolateFunctions as of VTK 5.2

static void vtkPixel::InterpolationDerivs	(	double	pcoords[3],
		double	derivs[8]
	)		[static]

Deprecated:

Replaced by vtkPixel::InterpolateDerivs as of VTK 5.2

virtual void vtkPixel::InterpolateFunctions	(	double	pcoords[3],
		double	weights[4]
	)		[inline, virtual]

Compute the interpolation functions/derivatives (aka shape functions/derivatives)

Definition at line 89 of file vtkPixel.h.

virtual void vtkPixel::InterpolateDerivs	(	double	pcoords[3],
		double	derivs[8]
	)		[inline, virtual]

Compute the interpolation functions/derivatives (aka shape functions/derivatives)

Definition at line 93 of file vtkPixel.h.

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Member Data Documentation

vtkLine* vtkPixel::Line [protected]

Definition at line 103 of file vtkPixel.h.

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

• dox/Common/DataModel/vtkPixel.h