vtkPixel Class Reference

#include <vtkPixel.h>

Inheritance diagram for vtkPixel:

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Collaboration diagram for vtkPixel:

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List of all members.


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 37 of file vtkPixel.h.

static void InterpolationFunctions (double pcoords[3], double weights[4])
static void InterpolationDerivs (double pcoords[3], double derivs[8])
virtual void InterpolateFunctions (double pcoords[3], double weights[4])
virtual void InterpolateDerivs (double pcoords[3], double derivs[8])

Public Types

typedef vtkCell Superclass

Public Member Functions

virtual const char * GetClassName ()
virtual int IsA (const char *type)
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 ()
vtkCellGetEdge (int edgeId)
vtkCellGetFace (int)
int CellBoundary (int subId, double pcoords[3], vtkIdList *pts)
void Contour (double value, vtkDataArray *cellScalars, vtkPointLocator *locator, vtkCellArray *verts, vtkCellArray *lines, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd)
void Clip (double value, vtkDataArray *cellScalars, vtkPointLocator *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)

Static Public Member Functions

static vtkPixelNew ()
static int IsTypeOf (const char *type)
static vtkPixelSafeDownCast (vtkObject *o)

Protected Member Functions

 vtkPixel ()
 ~vtkPixel ()

Protected Attributes

vtkLineLine

Member Typedef Documentation

Reimplemented from vtkCell.

Definition at line 41 of file vtkPixel.h.


Constructor & Destructor Documentation

vtkPixel::vtkPixel (  )  [protected]

vtkPixel::~vtkPixel (  )  [protected]


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.

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

Reimplemented from vtkCell.

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 vtkTypeRevisionMacro 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 vtkTypeRevisionMacro found in vtkSetGet.h.

Reimplemented from vtkCell.

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

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 46 of file vtkPixel.h.

int vtkPixel::GetCellDimension (  )  [inline, virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 47 of file vtkPixel.h.

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

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 48 of file vtkPixel.h.

int vtkPixel::GetNumberOfFaces (  )  [inline, virtual]

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 49 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 51 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,
vtkPointLocator 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,
vtkPointLocator 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::InterpolateFunctions as of VTK 5.2

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

Deprecated:
Replaced by vtkPixel::InterpolateFunctions as of VTK 5.2

Definition at line 89 of file vtkPixel.h.

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

Deprecated:
Replaced by vtkPixel::InterpolateFunctions as of VTK 5.2

Definition at line 93 of file vtkPixel.h.


Member Data Documentation

vtkLine* vtkPixel::Line [protected]

Definition at line 103 of file vtkPixel.h.


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

Generated on Sat Dec 27 13:42:07 2008 for VTK by  doxygen 1.5.6