#include <vtkCell.h>
Inheritance diagram for vtkCell:
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).
Definition at line 67 of file vtkCell.h.
Public Types | |
typedef vtkObject | Superclass |
Public Member Functions | |
virtual const char * | GetClassName () |
virtual int | IsA (const char *type) |
void | PrintSelf (ostream &os, vtkIndent indent) |
void | Initialize (int npts, vtkIdType *pts, vtkPoints *p) |
virtual void | ShallowCopy (vtkCell *c) |
virtual void | DeepCopy (vtkCell *c) |
virtual int | GetCellType ()=0 |
virtual int | GetCellDimension ()=0 |
virtual int | IsLinear () |
virtual int | IsExplicitCell () |
vtkPoints * | GetPoints () |
int | GetNumberOfPoints () |
virtual int | GetNumberOfEdges ()=0 |
virtual int | GetNumberOfFaces ()=0 |
vtkIdList * | GetPointIds () |
vtkIdType | GetPointId (int ptId) |
virtual vtkCell * | GetEdge (int edgeId)=0 |
virtual vtkCell * | GetFace (int faceId)=0 |
virtual int | CellBoundary (int subId, double pcoords[3], vtkIdList *pts)=0 |
virtual int | Triangulate (int index, vtkIdList *ptIds, vtkPoints *pts)=0 |
void | GetBounds (double bounds[6]) |
double * | GetBounds () |
double | GetLength2 () |
virtual int | GetParametricCenter (double pcoords[3]) |
virtual double | GetParametricDistance (double pcoords[3]) |
virtual int | IsPrimaryCell () |
virtual double * | GetParametricCoords () |
virtual int | RequiresInitialization () |
virtual void | Initialize () |
virtual int | EvaluatePosition (double x[3], double *closestPoint, int &subId, double pcoords[3], double &dist2, double *weights)=0 |
virtual void | EvaluateLocation (int &subId, double pcoords[3], double x[3], double *weights)=0 |
virtual void | Contour (double value, vtkDataArray *cellScalars, vtkPointLocator *locator, vtkCellArray *verts, vtkCellArray *lines, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd)=0 |
virtual void | Clip (double value, vtkDataArray *cellScalars, vtkPointLocator *locator, vtkCellArray *connectivity, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut)=0 |
virtual int | IntersectWithLine (double p1[3], double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId)=0 |
virtual void | Derivatives (int subId, double pcoords[3], double *values, int dim, double *derivs)=0 |
Static Public Member Functions | |
int | IsTypeOf (const char *type) |
vtkCell * | SafeDownCast (vtkObject *o) |
Public Attributes | |
vtkPoints * | Points |
vtkIdList * | PointIds |
Protected Member Functions | |
vtkCell () | |
~vtkCell () | |
Protected Attributes | |
double | Bounds [6] |
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Reimplemented from vtkObject. Reimplemented in vtkCell3D, vtkConvexPointSet, vtkEmptyCell, vtkExplicitCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkNonLinearCell, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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Reimplemented from vtkObject. Reimplemented in vtkCell3D, vtkConvexPointSet, vtkEmptyCell, vtkExplicitCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkNonLinearCell, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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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 vtkObject. Reimplemented in vtkCell3D, vtkConvexPointSet, vtkEmptyCell, vtkExplicitCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkNonLinearCell, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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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 vtkObject. Reimplemented in vtkCell3D, vtkConvexPointSet, vtkEmptyCell, vtkExplicitCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkNonLinearCell, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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Reimplemented from vtkObject. Reimplemented in vtkCell3D, vtkConvexPointSet, vtkEmptyCell, vtkExplicitCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkNonLinearCell, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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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 vtkCell3D, vtkConvexPointSet, vtkEmptyCell, vtkExplicitCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkNonLinearCell, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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Initialize cell from outside with point ids and point coordinates specified. |
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Copy this cell by reference counting the internal data structures. This is safe if you want a "read-only" copy. If you modify the cell you might wish to use DeepCopy(). Reimplemented in vtkGenericCell. |
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Copy this cell by completely copying internal data structures. This is slower but safer than ShallowCopy(). Reimplemented in vtkGenericCell. |
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Return the type of cell. Implemented in vtkConvexPointSet, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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Return the topological dimensional of the cell (0,1,2, or 3). Implemented in vtkCell3D, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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Non-linear cells require special treatment beyond the usual cell type and connectivity list information. Most cells in VTK are implicit cells. Reimplemented in vtkGenericCell, and vtkNonLinearCell. |
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Some cells require initialization prior to access. For example, they may have to triangulate themselves or set up internal data structures. Reimplemented in vtkConvexPointSet, and vtkGenericCell. |
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Some cells require initialization prior to access. For example, they may have to triangulate themselves or set up internal data structures. Reimplemented in vtkConvexPointSet, and vtkGenericCell. |
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Explicit cells require additional representational information beyond the usual cell type and connectivity list information. Most cells in VTK are implicit cells. Reimplemented in vtkExplicitCell. |
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Get the point coordinates for the cell. |
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Return the number of points in the cell. Definition at line 114 of file vtkCell.h. Referenced by vtkTriangleStrip::GetNumberOfEdges(), vtkPolygon::GetNumberOfEdges(), and vtkCellArray::InsertNextCell(). |
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Return the number of edges in the cell. Implemented in vtkConvexPointSet, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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Return the number of faces in the cell. Implemented in vtkConvexPointSet, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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Return the list of point ids defining the cell. |
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For cell point i, return the actual point id. Definition at line 126 of file vtkCell.h. References vtkIdType. |
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Return the edge cell from the edgeId of the cell. Implemented in vtkConvexPointSet, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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Return the face cell from the faceId of the cell. Implemented in vtkConvexPointSet, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkVertex, vtkVoxel, and vtkWedge. |
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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 vtkConvexPointSet, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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Given a point x[3] return inside(=1) or outside(=0) cell; 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 vtkConvexPointSet, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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Determine global coordinate (x[3]) from subId and parametric coordinates. Also returns interpolation weights. (The number of weights is equal to the number of points in the cell.) Implemented in vtkConvexPointSet, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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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 vtkCell3D, vtkConvexPointSet, vtkEmptyCell, vtkGenericCell, vtkHexahedron, vtkLine, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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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 vtkCell3D, vtkConvexPointSet, vtkEmptyCell, vtkGenericCell, vtkLine, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, and vtkVertex. |
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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. Implemented in vtkConvexPointSet, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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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. Implemented in vtkConvexPointSet, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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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 vtkConvexPointSet, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkVertex, vtkVoxel, and vtkWedge. |
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Compute cell bounding box (xmin,xmax,ymin,ymax,zmin,zmax). Copy result into user provided array. |
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Compute cell bounding box (xmin,xmax,ymin,ymax,zmin,zmax). Return pointer to array of six double values. |
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Compute Length squared of cell (i.e., bounding box diagonal squared). |
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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 vtkConvexPointSet, vtkGenericCell, vtkHexagonalPrism, vtkPentagonalPrism, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuadraticPyramid, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, and vtkWedge. |
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Return the distance of the parametric coordinate provided to the cell. If inside the cell, a distance of zero is returned. This is used during picking to get the correct cell picked. (The tolerance will occasionally allow cells to be picked who are not really intersected "inside" the cell.) Reimplemented in vtkQuadraticTetra, vtkQuadraticTriangle, vtkTetra, and vtkTriangle. |
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Return whether this cell type has a fixed topology or whether the topology varies depending on the data (e.g., vtkConvexPointSet). This compares to composite cells that are typically composed of primary cells (e.g., a triangle strip composite cell is made up of triangle primary cells). Reimplemented in vtkConvexPointSet, vtkGenericCell, vtkPolygon, vtkPolyLine, vtkPolyVertex, and vtkTriangleStrip. |
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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 vtkConvexPointSet, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkVertex, vtkVoxel, and vtkWedge. |
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Definition at line 293 of file vtkCell.h. Referenced by vtkCellArray::InsertNextCell(). |
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