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| virtual int | IsA (const char *type) |
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| vtkCell * | NewInstance () const |
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| void | PrintSelf (ostream &os, vtkIndent indent) |
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| void | Initialize (int npts, vtkIdType *pts, vtkPoints *p) |
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| virtual void | ShallowCopy (vtkCell *c) |
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| virtual void | DeepCopy (vtkCell *c) |
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| virtual int | GetCellType ()=0 |
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| virtual int | GetCellDimension ()=0 |
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| virtual int | IsLinear () |
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| virtual int | IsExplicitCell () |
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| vtkPoints * | GetPoints () |
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| vtkIdType | GetNumberOfPoints () |
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| virtual int | GetNumberOfEdges ()=0 |
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| virtual int | GetNumberOfFaces ()=0 |
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| vtkIdList * | GetPointIds () |
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| vtkIdType | GetPointId (int ptId) |
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| virtual vtkCell * | GetEdge (int edgeId)=0 |
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| virtual vtkCell * | GetFace (int faceId)=0 |
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| virtual int | CellBoundary (int subId, double pcoords[3], vtkIdList *pts)=0 |
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| virtual int | Triangulate (int index, vtkIdList *ptIds, vtkPoints *pts)=0 |
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| void | GetBounds (double bounds[6]) |
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| double * | GetBounds () |
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| double | GetLength2 () |
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| virtual int | GetParametricCenter (double pcoords[3]) |
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| virtual double | GetParametricDistance (double pcoords[3]) |
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| virtual int | IsPrimaryCell () |
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| virtual double * | GetParametricCoords () |
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| virtual int | RequiresInitialization () |
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| virtual void | Initialize () |
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| virtual int | RequiresExplicitFaceRepresentation () |
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| virtual void | SetFaces (vtkIdType *vtkNotUsed(faces)) |
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| virtual vtkIdType * | GetFaces () |
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| virtual int | EvaluatePosition (double x[3], double *closestPoint, int &subId, double pcoords[3], double &dist2, double *weights)=0 |
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| virtual void | EvaluateLocation (int &subId, double pcoords[3], double x[3], double *weights)=0 |
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| 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)=0 |
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| virtual void | Clip (double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *connectivity, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut)=0 |
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| virtual int | IntersectWithLine (double p1[3], double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId)=0 |
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| virtual void | Derivatives (int subId, double pcoords[3], double *values, int dim, double *derivs)=0 |
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| virtual void | InterpolateFunctions (double vtkNotUsed(pcoords)[3], double *vtkNotUsed(weight)) |
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| virtual void | InterpolateDerivs (double vtkNotUsed(pcoords)[3], double *vtkNotUsed(derivs)) |
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| vtkObject * | NewInstance () const |
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| virtual void | DebugOn () |
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| virtual void | DebugOff () |
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| bool | GetDebug () |
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| void | SetDebug (bool debugFlag) |
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| virtual void | Modified () |
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| virtual unsigned long | GetMTime () |
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| unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
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| unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
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| vtkCommand * | GetCommand (unsigned long tag) |
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| void | RemoveObserver (vtkCommand *) |
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| void | RemoveObservers (unsigned long event, vtkCommand *) |
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| void | RemoveObservers (const char *event, vtkCommand *) |
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| int | HasObserver (unsigned long event, vtkCommand *) |
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| int | HasObserver (const char *event, vtkCommand *) |
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| void | RemoveObserver (unsigned long tag) |
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| void | RemoveObservers (unsigned long event) |
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| void | RemoveObservers (const char *event) |
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| void | RemoveAllObservers () |
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| int | HasObserver (unsigned long event) |
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| int | HasObserver (const char *event) |
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| template<class U , class T > |
| unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f) |
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| template<class U , class T > |
| unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
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| template<class U , class T > |
| unsigned long | AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
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| int | InvokeEvent (unsigned long event, void *callData) |
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| int | InvokeEvent (const char *event, void *callData) |
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| int | InvokeEvent (unsigned long event) |
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| int | InvokeEvent (const char *event) |
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| const char * | GetClassName () const |
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| virtual void | Delete () |
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| virtual void | FastDelete () |
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| void | Print (ostream &os) |
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| virtual void | Register (vtkObjectBase *o) |
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| virtual void | UnRegister (vtkObjectBase *o) |
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| void | SetReferenceCount (int) |
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| void | PrintRevisions (ostream &) |
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| virtual void | PrintHeader (ostream &os, vtkIndent indent) |
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| virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
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| int | GetReferenceCount () |
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abstract class to specify cell behavior
vtkCell is an abstract class that specifies the interfaces for data cells. Data cells are simple topological elements like points, lines, polygons, and tetrahedra of which visualization datasets are composed. In some cases visualization datasets may explicitly represent cells (e.g., vtkPolyData, vtkUnstructuredGrid), and in some cases, the datasets are implicitly composed of cells (e.g., vtkStructuredPoints).
- Warning
- The #define VTK_CELL_SIZE is a parameter used to construct cells and provide a general guideline for controlling object execution. This parameter is not a hard boundary: you can create cells with more points.
- See also
- vtkHexahedron vtkLine vtkPixel vtkPolyLine vtkPolyVertex vtkPolygon vtkQuad vtkTetra vtkTriangle vtkTriangleStrip vtkVertex vtkVoxel vtkWedge vtkPyramid
- Tests:
- vtkCell (Tests)
Definition at line 58 of file vtkCell.h.
| void vtkCell::PrintSelf |
( |
ostream & |
os, |
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vtkIndent |
indent |
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) |
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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 vtkObject.
Reimplemented in vtkTriQuadraticHexahedron, vtkPolyhedron, vtkPentagonalPrism, vtkQuadraticLinearWedge, vtkQuadraticPyramid, vtkQuadraticTetra, vtkQuadraticLinearQuad, vtkPyramid, vtkQuadraticWedge, vtkWedge, vtkHexagonalPrism, vtkQuadraticHexahedron, vtkHexahedron, vtkTetra, vtkQuadraticPolygon, vtkQuadraticQuad, vtkQuadraticTriangle, vtkConvexPointSet, vtkCubicLine, vtkPolygon, vtkVoxel, vtkQuadraticEdge, vtkTriangleStrip, vtkPolyLine, vtkGenericCell, vtkQuad, vtkTriangle, vtkPixel, vtkPolyVertex, vtkCell3D, vtkVertex, vtkLine, vtkNonLinearCell, and vtkEmptyCell.
Given parametric coordinates of a point, return the closest cell boundary, and whether the point is inside or outside of the cell. The cell boundary is defined by a list of points (pts) that specify a face (3D cell), edge (2D cell), or vertex (1D cell). If the return value of the method is != 0, then the point is inside the cell.
Implemented in vtkPolyhedron, vtkConvexPointSet, vtkTriQuadraticHexahedron, vtkBiQuadraticQuadraticHexahedron, vtkTetra, vtkPentagonalPrism, vtkBiQuadraticQuadraticWedge, vtkQuadraticLinearWedge, vtkQuadraticPyramid, vtkBiQuadraticQuad, vtkGenericCell, vtkVertex, vtkPyramid, vtkQuadraticPolygon, vtkWedge, vtkBiQuadraticTriangle, vtkHexagonalPrism, vtkQuadraticTetra, vtkPolyLine, vtkQuadraticLinearQuad, vtkHexahedron, vtkQuadraticWedge, vtkQuadraticHexahedron, vtkVoxel, vtkQuadraticQuad, vtkQuadraticTriangle, vtkQuadraticEdge, vtkCubicLine, vtkPolygon, vtkTriangle, vtkTriangleStrip, vtkQuad, vtkPixel, vtkPolyVertex, vtkLine, and vtkEmptyCell.
Given a point x[3] return inside(=1), outside(=0) cell, or (-1) computational problem encountered; evaluate parametric coordinates, sub-cell id (!=0 only if cell is composite), distance squared of point x[3] to cell (in particular, the sub-cell indicated), closest point on cell to x[3] (unless closestPoint is null, in which case, the closest point and dist2 are not found), and interpolation weights in cell. (The number of weights is equal to the number of points defining the cell). Note: on rare occasions a -1 is returned from the method. This means that numerical error has occurred and all data returned from this method should be ignored. Also, inside/outside is determine parametrically. That is, a point is inside if it satisfies parametric limits. This can cause problems for cells of topological dimension 2 or less, since a point in 3D can project onto the cell within parametric limits but be "far" from the cell. Thus the value dist2 may be checked to determine true in/out.
Implemented in vtkPolyhedron, vtkConvexPointSet, vtkTriQuadraticHexahedron, vtkBiQuadraticQuadraticHexahedron, vtkQuadraticLinearWedge, vtkQuadraticPolygon, vtkBiQuadraticQuadraticWedge, vtkPentagonalPrism, vtkPolyLine, vtkQuadraticPyramid, vtkTetra, vtkPyramid, vtkWedge, vtkBiQuadraticTriangle, vtkHexahedron, vtkQuadraticTetra, vtkQuadraticLinearQuad, vtkBiQuadraticQuad, vtkGenericCell, vtkQuadraticWedge, vtkHexagonalPrism, vtkQuadraticHexahedron, vtkVoxel, vtkPolygon, vtkTriangleStrip, vtkQuadraticQuad, vtkQuadraticTriangle, vtkQuadraticEdge, vtkCubicLine, vtkPixel, vtkTriangle, vtkPolyVertex, vtkQuad, vtkEmptyCell, vtkVertex, and vtkLine.
| virtual void vtkCell::Contour |
( |
double |
value, |
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vtkDataArray * |
cellScalars, |
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vtkIncrementalPointLocator * |
locator, |
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vtkCellArray * |
verts, |
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vtkCellArray * |
lines, |
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vtkCellArray * |
polys, |
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vtkPointData * |
inPd, |
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vtkPointData * |
outPd, |
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vtkCellData * |
inCd, |
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vtkIdType |
cellId, |
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vtkCellData * |
outCd |
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) |
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pure virtual |
Generate contouring primitives. The scalar list cellScalars are scalar values at each cell point. The point locator is essentially a points list that merges points as they are inserted (i.e., prevents duplicates). Contouring primitives can be vertices, lines, or polygons. It is possible to interpolate point data along the edge by providing input and output point data - if outPd is NULL, then no interpolation is performed. Also, if the output cell data is non-NULL, the cell data from the contoured cell is passed to the generated contouring primitives. (Note: the CopyAllocate() method must be invoked on both the output cell and point data. The cellId refers to the cell from which the cell data is copied.)
Implemented in vtkTriQuadraticHexahedron, vtkBiQuadraticQuadraticHexahedron, vtkPolyhedron, vtkConvexPointSet, vtkBiQuadraticQuad, vtkGenericCell, vtkQuadraticLinearWedge, vtkVertex, vtkBiQuadraticQuadraticWedge, vtkQuadraticPyramid, vtkPyramid, vtkQuadraticPolygon, vtkWedge, vtkBiQuadraticTriangle, vtkQuadraticTetra, vtkPolyLine, vtkQuadraticLinearQuad, vtkHexahedron, vtkQuadraticWedge, vtkQuadraticHexahedron, vtkTetra, vtkVoxel, vtkQuadraticQuad, vtkQuadraticTriangle, vtkQuadraticEdge, vtkCubicLine, vtkPolygon, vtkTriangle, vtkTriangleStrip, vtkCell3D, vtkQuad, vtkPixel, vtkPolyVertex, vtkLine, and vtkEmptyCell.
Cut (or clip) the cell based on the input cellScalars and the specified value. The output of the clip operation will be one or more cells of the same topological dimension as the original cell. The flag insideOut controls what part of the cell is considered inside - normally cell points whose scalar value is greater than "value" are considered inside. If insideOut is on, this is reversed. Also, if the output cell data is non-NULL, the cell data from the clipped cell is passed to the generated contouring primitives. (Note: the CopyAllocate() method must be invoked on both the output cell and point data. The cellId refers to the cell from which the cell data is copied.)
Implemented in vtkBiQuadraticQuadraticHexahedron, vtkTriQuadraticHexahedron, vtkPolyhedron, vtkConvexPointSet, vtkQuadraticLinearWedge, vtkBiQuadraticQuad, vtkBiQuadraticQuadraticWedge, vtkQuadraticPyramid, vtkBiQuadraticTriangle, vtkQuadraticTetra, vtkQuadraticWedge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkCubicLine, vtkQuadraticTriangle, vtkGenericCell, vtkQuadraticQuad, vtkTriangle, vtkQuad, vtkQuadraticEdge, vtkCell3D, vtkQuadraticPolygon, vtkPolyLine, vtkTetra, vtkLine, vtkPolygon, vtkTriangleStrip, vtkPixel, vtkPolyVertex, vtkEmptyCell, and vtkVertex.
Intersect with a ray. Return parametric coordinates (both line and cell) and global intersection coordinates, given ray definition p1[3], p2[3] and tolerance tol. The method returns non-zero value if intersection occurs. A parametric distance t between 0 and 1 along the ray representing the intersection point, the point coordinates x[3] in data coordinates and also pcoords[3] in parametric coordinates. subId is the index within the cell if a composed cell like a triangle strip.
Implemented in vtkPolyhedron, vtkBiQuadraticQuadraticHexahedron, vtkTriQuadraticHexahedron, vtkConvexPointSet, vtkTriangle, vtkQuadraticLinearWedge, vtkBiQuadraticQuad, vtkBiQuadraticQuadraticWedge, vtkQuadraticPyramid, vtkBiQuadraticTriangle, vtkQuadraticTetra, vtkCubicLine, vtkQuadraticWedge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticTriangle, vtkQuadraticQuad, vtkVertex, vtkQuadraticEdge, vtkGenericCell, vtkQuadraticPolygon, vtkPentagonalPrism, vtkPolyLine, vtkLine, vtkTetra, vtkPyramid, vtkWedge, vtkHexahedron, vtkHexagonalPrism, vtkVoxel, vtkPixel, vtkPolygon, vtkTriangleStrip, vtkPolyVertex, vtkQuad, and vtkEmptyCell.
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.
Implemented in vtkPolyhedron, vtkConvexPointSet, vtkBiQuadraticQuadraticHexahedron, vtkTriQuadraticHexahedron, vtkVertex, vtkQuadraticPolygon, vtkGenericCell, vtkPentagonalPrism, vtkPolyLine, vtkQuadraticLinearWedge, vtkBiQuadraticQuadraticWedge, vtkQuadraticPyramid, vtkTetra, vtkPyramid, vtkWedge, vtkHexahedron, vtkBiQuadraticTriangle, vtkQuadraticTetra, vtkHexagonalPrism, vtkVoxel, vtkBiQuadraticQuad, vtkPixel, vtkPolygon, vtkQuadraticLinearQuad, vtkQuadraticWedge, vtkTriangleStrip, vtkQuadraticHexahedron, vtkQuadraticQuad, vtkQuadraticTriangle, vtkQuadraticEdge, vtkCubicLine, vtkPolyVertex, vtkTriangle, vtkQuad, vtkEmptyCell, and vtkLine.
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)).
Implemented in vtkPolyhedron, vtkConvexPointSet, vtkBiQuadraticQuadraticHexahedron, vtkTriQuadraticHexahedron, vtkQuadraticPolygon, vtkVertex, vtkGenericCell, vtkPentagonalPrism, vtkPolyLine, vtkQuadraticLinearWedge, vtkBiQuadraticQuadraticWedge, vtkQuadraticPyramid, vtkTetra, vtkPyramid, vtkWedge, vtkHexahedron, vtkBiQuadraticTriangle, vtkQuadraticTetra, vtkHexagonalPrism, vtkVoxel, vtkBiQuadraticQuad, vtkPixel, vtkPolygon, vtkQuadraticLinearQuad, vtkQuadraticWedge, vtkTriangleStrip, vtkQuadraticHexahedron, vtkQuadraticQuad, vtkQuadraticTriangle, vtkQuadraticEdge, vtkCubicLine, vtkPolyVertex, vtkTriangle, vtkQuad, vtkEmptyCell, and vtkLine.
| virtual int vtkCell::GetParametricCenter |
( |
double |
pcoords[3] | ) |
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virtual |
Return center of the cell in parametric coordinates. Note that the parametric center is not always located at (0.5,0.5,0.5). The return value is the subId that the center is in (if a composite cell). If you want the center in x-y-z space, invoke the EvaluateLocation() method.
Reimplemented in vtkPolyhedron, vtkConvexPointSet, vtkTriangle, vtkQuadraticLinearWedge, vtkBiQuadraticQuadraticWedge, vtkQuadraticPyramid, vtkBiQuadraticQuad, vtkBiQuadraticTriangle, vtkQuadraticTetra, vtkQuadraticWedge, vtkQuadraticLinearQuad, vtkQuadraticTriangle, vtkQuadraticQuad, vtkTetra, vtkQuadraticEdge, vtkGenericCell, vtkPentagonalPrism, vtkPolyLine, vtkCubicLine, vtkPyramid, vtkWedge, vtkVertex, vtkHexagonalPrism, vtkTriangleStrip, vtkLine, vtkPolyVertex, vtkQuad, and vtkPixel.
| virtual double* vtkCell::GetParametricCoords |
( |
| ) |
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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 in vtkBiQuadraticQuadraticHexahedron, vtkTriQuadraticHexahedron, vtkGenericCell, vtkPentagonalPrism, vtkQuadraticLinearWedge, vtkBiQuadraticQuadraticWedge, vtkQuadraticPyramid, vtkTetra, vtkPyramid, vtkWedge, vtkHexahedron, vtkBiQuadraticTriangle, vtkQuadraticTetra, vtkHexagonalPrism, vtkBiQuadraticQuad, vtkPixel, vtkQuadraticLinearQuad, vtkQuadraticWedge, vtkQuadraticHexahedron, vtkQuadraticQuad, vtkQuadraticTriangle, vtkQuadraticEdge, vtkCubicLine, vtkPolyhedron, vtkTriangle, vtkQuad, vtkLine, vtkVertex, vtkConvexPointSet, and vtkVoxel.
Public Types inherited from vtkObject