VTK
9.1.0
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abstract class to specify cell behavior More...
#include <vtkCell.h>
Public Types | |
typedef vtkObject | Superclass |
Public Member Functions | |
virtual vtkTypeBool | IsA (const char *type) |
Return 1 if this class is the same type of (or a subclass of) the named class. | |
vtkCell * | NewInstance () const |
void | PrintSelf (ostream &os, vtkIndent indent) override |
Methods invoked by print to print information about the object including superclasses. | |
void | Initialize (int npts, const vtkIdType *pts, vtkPoints *p) |
Initialize cell from outside with point ids and point coordinates specified. | |
void | Initialize (int npts, vtkPoints *p) |
Initialize the cell with point coordinates specified. | |
virtual void | ShallowCopy (vtkCell *c) |
Copy this cell by reference counting the internal data structures. | |
virtual void | DeepCopy (vtkCell *c) |
Copy this cell by completely copying internal data structures. | |
virtual int | GetCellType ()=0 |
Return the type of cell. | |
virtual int | GetCellDimension ()=0 |
Return the topological dimensional of the cell (0,1,2, or 3). | |
virtual int | IsLinear () |
Non-linear cells require special treatment beyond the usual cell type and connectivity list information. | |
virtual int | RequiresInitialization () |
Some cells require initialization prior to access. | |
virtual void | Initialize () |
virtual int | IsExplicitCell () |
Explicit cells require additional representational information beyond the usual cell type and connectivity list information. | |
virtual int | RequiresExplicitFaceRepresentation () |
Determine whether the cell requires explicit face representation, and methods for setting and getting the faces (see vtkPolyhedron for example usage of these methods). | |
virtual void | SetFaces (vtkIdType *vtkNotUsed(faces)) |
virtual vtkIdType * | GetFaces () |
vtkPoints * | GetPoints () |
Get the point coordinates for the cell. | |
vtkIdType | GetNumberOfPoints () const |
Return the number of points in the cell. | |
virtual int | GetNumberOfEdges ()=0 |
Return the number of edges in the cell. | |
virtual int | GetNumberOfFaces ()=0 |
Return the number of faces in the cell. | |
vtkIdList * | GetPointIds () |
Return the list of point ids defining the cell. | |
vtkIdType | GetPointId (int ptId) |
For cell point i, return the actual point id. | |
virtual vtkCell * | GetEdge (int edgeId)=0 |
Return the edge cell from the edgeId of the cell. | |
virtual vtkCell * | GetFace (int faceId)=0 |
Return the face cell from the faceId of the cell. | |
virtual int | CellBoundary (int subId, const double pcoords[3], vtkIdList *pts)=0 |
Given parametric coordinates of a point, return the closest cell boundary, and whether the point is inside or outside of the cell. | |
virtual int | EvaluatePosition (const double x[3], double closestPoint[3], int &subId, double pcoords[3], double &dist2, double weights[])=0 |
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. | |
virtual void | EvaluateLocation (int &subId, const double pcoords[3], double x[3], double *weights)=0 |
Determine global coordinate (x[3]) from subId and parametric coordinates. | |
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 |
Generate contouring primitives. | |
virtual void | Clip (double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *connectivity, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut)=0 |
Cut (or clip) the cell based on the input cellScalars and the specified value. | |
virtual int | Inflate (double dist) |
Inflates the cell. | |
virtual double | ComputeBoundingSphere (double center[3]) const |
Computes the bounding sphere of the cell. | |
virtual int | IntersectWithLine (const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId)=0 |
Intersect with a ray. | |
virtual int | Triangulate (int index, vtkIdList *ptIds, vtkPoints *pts)=0 |
Generate simplices of proper dimension. | |
virtual void | Derivatives (int subId, const double pcoords[3], const double *values, int dim, double *derivs)=0 |
Compute derivatives given cell subId and parametric coordinates. | |
void | GetBounds (double bounds[6]) |
Compute cell bounding box (xmin,xmax,ymin,ymax,zmin,zmax). | |
double * | GetBounds () |
Compute cell bounding box (xmin,xmax,ymin,ymax,zmin,zmax). | |
double | GetLength2 () |
Compute Length squared of cell (i.e., bounding box diagonal squared). | |
virtual int | GetParametricCenter (double pcoords[3]) |
Return center of the cell in parametric coordinates. | |
virtual double | GetParametricDistance (const double pcoords[3]) |
Return the distance of the parametric coordinate provided to the cell. | |
virtual int | IsPrimaryCell () |
Return whether this cell type has a fixed topology or whether the topology varies depending on the data (e.g., vtkConvexPointSet). | |
virtual double * | GetParametricCoords () |
Return a contiguous array of parametric coordinates of the points defining this cell. | |
virtual void | InterpolateFunctions (const double vtkNotUsed(pcoords)[3], double *vtkNotUsed(weight)) |
Compute the interpolation functions/derivatives (aka shape functions/derivatives) No-ops at this level. | |
virtual void | InterpolateDerivs (const double vtkNotUsed(pcoords)[3], double *vtkNotUsed(derivs)) |
virtual int | IntersectWithCell (vtkCell *other, double tol=0.0) |
Intersects with an other cell. | |
virtual int | IntersectWithCell (vtkCell *other, const vtkBoundingBox &boudingBox, const vtkBoundingBox &otherBoundingBox, double tol=0.0) |
Intersects with an other cell. | |
Public Member Functions inherited from vtkObject | |
vtkBaseTypeMacro (vtkObject, vtkObjectBase) | |
virtual void | DebugOn () |
Turn debugging output on. | |
virtual void | DebugOff () |
Turn debugging output off. | |
bool | GetDebug () |
Get the value of the debug flag. | |
void | SetDebug (bool debugFlag) |
Set the value of the debug flag. | |
virtual void | Modified () |
Update the modification time for this object. | |
virtual vtkMTimeType | GetMTime () |
Return this object's modified time. | |
void | PrintSelf (ostream &os, vtkIndent indent) override |
Methods invoked by print to print information about the object including superclasses. | |
void | RemoveObserver (unsigned long tag) |
void | RemoveObservers (unsigned long event) |
void | RemoveObservers (const char *event) |
void | RemoveAllObservers () |
vtkTypeBool | HasObserver (unsigned long event) |
vtkTypeBool | HasObserver (const char *event) |
int | InvokeEvent (unsigned long event) |
int | InvokeEvent (const char *event) |
unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
vtkCommand * | GetCommand (unsigned long tag) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
void | RemoveObserver (vtkCommand *) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
void | RemoveObservers (unsigned long event, vtkCommand *) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
void | RemoveObservers (const char *event, vtkCommand *) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
vtkTypeBool | HasObserver (const char *event, vtkCommand *) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
template<class U , class T > | |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f) |
Overloads to AddObserver that allow developers to add class member functions as callbacks for events. | |
template<class U , class T > | |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
Overloads to AddObserver that allow developers to add class member functions as callbacks for events. | |
template<class U , class T > | |
unsigned long | AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
Allow user to set the AbortFlagOn() with the return value of the callback method. | |
int | InvokeEvent (unsigned long event, void *callData) |
This method invokes an event and return whether the event was aborted or not. | |
int | InvokeEvent (const char *event, void *callData) |
This method invokes an event and return whether the event was aborted or not. | |
Public Member Functions inherited from vtkObjectBase | |
const char * | GetClassName () const |
Return the class name as a string. | |
virtual vtkTypeBool | IsA (const char *name) |
Return 1 if this class is the same type of (or a subclass of) the named class. | |
virtual vtkIdType | GetNumberOfGenerationsFromBase (const char *name) |
Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class). | |
virtual void | Delete () |
Delete a VTK object. | |
virtual void | FastDelete () |
Delete a reference to this object. | |
void | InitializeObjectBase () |
void | Print (ostream &os) |
Print an object to an ostream. | |
virtual void | Register (vtkObjectBase *o) |
Increase the reference count (mark as used by another object). | |
virtual void | UnRegister (vtkObjectBase *o) |
Decrease the reference count (release by another object). | |
int | GetReferenceCount () |
Return the current reference count of this object. | |
void | SetReferenceCount (int) |
Sets the reference count. | |
bool | GetIsInMemkind () const |
A local state flag that remembers whether this object lives in the normal or extended memory space. | |
virtual void | PrintHeader (ostream &os, vtkIndent indent) |
Methods invoked by print to print information about the object including superclasses. | |
virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
Methods invoked by print to print information about the object including superclasses. | |
Static Public Member Functions | |
static vtkTypeBool | IsTypeOf (const char *type) |
static vtkCell * | SafeDownCast (vtkObjectBase *o) |
Static Public Member Functions inherited from vtkObject | |
static vtkObject * | New () |
Create an object with Debug turned off, modified time initialized to zero, and reference counting on. | |
static void | BreakOnError () |
This method is called when vtkErrorMacro executes. | |
static void | SetGlobalWarningDisplay (int val) |
This is a global flag that controls whether any debug, warning or error messages are displayed. | |
static void | GlobalWarningDisplayOn () |
This is a global flag that controls whether any debug, warning or error messages are displayed. | |
static void | GlobalWarningDisplayOff () |
This is a global flag that controls whether any debug, warning or error messages are displayed. | |
static int | GetGlobalWarningDisplay () |
This is a global flag that controls whether any debug, warning or error messages are displayed. | |
Static Public Member Functions inherited from vtkObjectBase | |
static vtkTypeBool | IsTypeOf (const char *name) |
Return 1 if this class type is the same type of (or a subclass of) the named class. | |
static vtkIdType | GetNumberOfGenerationsFromBaseType (const char *name) |
Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class). | |
static vtkObjectBase * | New () |
Create an object with Debug turned off, modified time initialized to zero, and reference counting on. | |
static void | SetMemkindDirectory (const char *directoryname) |
The name of a directory, ideally mounted -o dax, to memory map an extended memory space within. | |
static bool | GetUsingMemkind () |
A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space. | |
Public Attributes | |
vtkPoints * | Points |
vtkIdList * | PointIds |
Protected Member Functions | |
virtual vtkObjectBase * | NewInstanceInternal () const |
vtkCell () | |
~vtkCell () override | |
Protected Member Functions inherited from vtkObject | |
vtkObject () | |
~vtkObject () override | |
void | RegisterInternal (vtkObjectBase *, vtkTypeBool check) override |
void | UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override |
void | InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr) |
These methods allow a command to exclusively grab all events. | |
void | InternalReleaseFocus () |
These methods allow a command to exclusively grab all events. | |
Protected Member Functions inherited from vtkObjectBase | |
vtkObjectBase () | |
virtual | ~vtkObjectBase () |
virtual void | RegisterInternal (vtkObjectBase *, vtkTypeBool check) |
virtual void | UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) |
virtual void | ReportReferences (vtkGarbageCollector *) |
vtkObjectBase (const vtkObjectBase &) | |
void | operator= (const vtkObjectBase &) |
Protected Attributes | |
double | Bounds [6] |
Protected Attributes inherited from vtkObject | |
bool | Debug |
vtkTimeStamp | MTime |
vtkSubjectHelper * | SubjectHelper |
Protected Attributes inherited from vtkObjectBase | |
std::atomic< int32_t > | ReferenceCount |
vtkWeakPointerBase ** | WeakPointers |
Additional Inherited Members | |
Static Protected Member Functions inherited from vtkObjectBase | |
static vtkMallocingFunction | GetCurrentMallocFunction () |
static vtkReallocingFunction | GetCurrentReallocFunction () |
static vtkFreeingFunction | GetCurrentFreeFunction () |
static vtkFreeingFunction | GetAlternateFreeFunction () |
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).
typedef vtkObject vtkCell::Superclass |
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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 vtkTypeMacro found in vtkSetGet.h.
Reimplemented from vtkObjectBase.
Reimplemented in vtkBezierCurve, vtkBezierHexahedron, vtkBezierQuadrilateral, vtkBezierTetra, vtkBezierTriangle, vtkBezierWedge, vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkCell3D, vtkConvexPointSet, vtkCubicLine, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkLagrangeCurve, vtkLagrangeHexahedron, vtkLagrangeQuadrilateral, vtkLagrangeTetra, vtkLagrangeTriangle, vtkLagrangeWedge, vtkLine, vtkNonLinearCell, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyhedron, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPolygon, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticHexahedron, vtkTriQuadraticPyramid, vtkVertex, vtkVoxel, and vtkWedge.
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Reimplemented in vtkBezierCurve, vtkBezierHexahedron, vtkBezierQuadrilateral, vtkBezierTetra, vtkBezierTriangle, vtkBezierWedge, vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkCell3D, vtkConvexPointSet, vtkCubicLine, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkLagrangeCurve, vtkLagrangeHexahedron, vtkLagrangeQuadrilateral, vtkLagrangeTetra, vtkLagrangeTriangle, vtkLagrangeWedge, vtkLine, vtkNonLinearCell, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyhedron, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPolygon, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticHexahedron, vtkTriQuadraticPyramid, vtkVertex, vtkVoxel, and vtkWedge.
vtkCell * vtkCell::NewInstance | ( | ) | const |
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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, vtkCubicLine, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkLagrangeCurve, vtkLagrangeHexahedron, vtkLagrangeQuadrilateral, vtkLagrangeTetra, vtkLagrangeTriangle, vtkLagrangeWedge, vtkLine, vtkNonLinearCell, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyhedron, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPolygon, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticHexahedron, vtkTriQuadraticPyramid, vtkVertex, vtkVoxel, and vtkWedge.
Initialize cell from outside with point ids and point coordinates specified.
void vtkCell::Initialize | ( | int | npts, |
vtkPoints * | p | ||
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Initialize the cell with point coordinates specified.
Note that this simplified version of Initialize() assumes that the point ids are simply the indices into the supplied points array. Make sure that the ordering of the points is consistent with the definition of the cell.
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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 vtkBezierCurve, vtkBezierHexahedron, vtkBezierQuadrilateral, vtkBezierTetra, vtkBezierTriangle, vtkBezierWedge, vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkConvexPointSet, vtkCubicLine, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLagrangeCurve, vtkLagrangeHexahedron, vtkLagrangeQuadrilateral, vtkLagrangeTetra, vtkLagrangeTriangle, vtkLagrangeWedge, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyhedron, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPolygon, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticHexahedron, vtkTriQuadraticPyramid, vtkVertex, vtkVoxel, vtkWedge, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, and vtkHigherOrderWedge.
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Return the topological dimensional of the cell (0,1,2, or 3).
Implemented in vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkCell3D, vtkCubicLine, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPolygon, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticHexahedron, vtkTriQuadraticPyramid, 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, vtkGenericCell, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, and vtkPolyhedron.
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Determine whether the cell requires explicit face representation, and methods for setting and getting the faces (see vtkPolyhedron for example usage of these methods).
Reimplemented in vtkGenericCell, and vtkPolyhedron.
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Reimplemented in vtkGenericCell, and vtkPolyhedron.
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Return the number of edges in the cell.
Implemented in vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkConvexPointSet, vtkCubicLine, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyhedron, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPolygon, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticHexahedron, vtkTriQuadraticPyramid, vtkVertex, vtkVoxel, and vtkWedge.
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Return the number of faces in the cell.
Implemented in vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkConvexPointSet, vtkCubicLine, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyhedron, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPolygon, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticHexahedron, vtkTriQuadraticPyramid, vtkVertex, vtkVoxel, and vtkWedge.
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Return the edge cell from the edgeId of the cell.
Implemented in vtkBezierHexahedron, vtkBezierQuadrilateral, vtkBezierTetra, vtkBezierTriangle, vtkBezierWedge, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLagrangeHexahedron, vtkLagrangeQuadrilateral, vtkLagrangeTetra, vtkLagrangeTriangle, vtkLagrangeWedge, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPyramid, vtkQuad, vtkQuadraticLinearWedge, vtkQuadraticPyramid, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticPyramid, vtkVoxel, vtkWedge, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkConvexPointSet, vtkCubicLine, vtkEmptyCell, vtkHigherOrderCurve, vtkLine, vtkPolyhedron, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticPolygon, vtkQuadraticQuad, vtkQuadraticTetra, vtkTriQuadraticHexahedron, and vtkVertex.
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Return the face cell from the faceId of the cell.
The returned vtkCell is an object owned by this instance, hence the return value must not be deleted by the caller.
Implemented in vtkBezierHexahedron, vtkBezierTetra, vtkBezierWedge, vtkBiQuadraticQuadraticWedge, vtkConvexPointSet, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkLagrangeHexahedron, vtkLagrangeTetra, vtkLagrangeWedge, vtkPentagonalPrism, vtkPolyhedron, vtkPyramid, vtkQuadraticLinearWedge, vtkQuadraticPyramid, vtkQuadraticWedge, vtkTetra, vtkTriQuadraticPyramid, vtkVoxel, vtkWedge, vtkHigherOrderHexahedron, vtkHigherOrderTetra, vtkHigherOrderWedge, vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticTriangle, vtkCubicLine, vtkEmptyCell, vtkHigherOrderCurve, vtkHigherOrderTriangle, vtkLine, vtkPixel, vtkPolygon, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticPolygon, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkTriangle, vtkTriQuadraticHexahedron, and vtkVertex.
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pure virtual |
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 vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkConvexPointSet, vtkCubicLine, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyhedron, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPolygon, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticHexahedron, vtkTriQuadraticPyramid, vtkVertex, vtkVoxel, and vtkWedge.
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pure virtual |
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 vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticTriangle, vtkConvexPointSet, vtkCubicLine, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyhedron, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticPolygon, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticPyramid, vtkVertex, vtkVoxel, and vtkWedge.
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pure virtual |
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 vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkConvexPointSet, vtkCubicLine, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyhedron, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPolygon, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticHexahedron, vtkTriQuadraticPyramid, vtkVertex, vtkVoxel, and vtkWedge.
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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 nullptr, then no interpolation is performed. Also, if the output cell data is non-nullptr, 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 vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkCell3D, vtkConvexPointSet, vtkCubicLine, vtkGenericCell, vtkHexahedron, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkLine, vtkPixel, vtkPolygon, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPolygon, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticHexahedron, vtkTriQuadraticPyramid, vtkVoxel, vtkWedge, vtkEmptyCell, vtkVertex, and vtkPolyhedron.
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pure virtual |
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-nullptr, 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, vtkGenericCell, vtkTetra, vtkCubicLine, vtkLine, vtkPolyLine, vtkQuadraticEdge, vtkBiQuadraticQuad, vtkBiQuadraticTriangle, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkPixel, vtkQuad, vtkQuadraticLinearQuad, vtkQuadraticPolygon, vtkQuadraticQuad, vtkQuadraticTriangle, vtkTriangle, vtkTriangleStrip, vtkEmptyCell, vtkVertex, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticQuadraticWedge, vtkQuadraticHexahedron, vtkQuadraticLinearWedge, vtkQuadraticTetra, vtkQuadraticWedge, vtkTriQuadraticHexahedron, vtkQuadraticPyramid, vtkTriQuadraticPyramid, vtkPolygon, vtkPolyVertex, and vtkPolyhedron.
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virtual |
Inflates the cell.
Each edge is displaced following its normal by a distance of value dist
. If dist is negative, then the cell shrinks. The resulting cell edges / faces are colinear / coplanar to their previous self.
The cell is assumed to be non-degenerate and to have no edge of length zero for linear 2D cells. If it is not the case, then no inflation is performed. This method needs to be overriden by inheriting non-linear / non-2D cells.
Reimplemented in vtkCell3D, vtkLine, vtkPixel, vtkVoxel, and vtkVertex.
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virtual |
Computes the bounding sphere of the cell.
If the number of points in the cell is lower or equal to 4, an exact bounding sphere is computed. If not, Ritter's algorithm is followed. If the input sphere has zero points, then each coordinate of center is set to NaN, as well as the returned distance.
This method computes the center of the sphere, and returns its squared radius.
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pure virtual |
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 vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkConvexPointSet, vtkCubicLine, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyhedron, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPolygon, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticHexahedron, vtkTriQuadraticPyramid, vtkVertex, vtkVoxel, and vtkWedge.
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virtual |
Intersects with an other cell.
Returns 1 if cells intersect, 0 otherwise. If an exact intersection detection with regards to floating point precision is wanted, tol should be disregarded. vtkBoundingBox
are optional parameters which slightly improve the speed of the computation if bounding boxes are already available to user.
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virtual |
Intersects with an other cell.
Returns 1 if cells intersect, 0 otherwise. If an exact intersection detection with regards to floating point precision is wanted, tol should be disregarded. vtkBoundingBox
are optional parameters which slightly improve the speed of the computation if bounding boxes are already available to user.
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 vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkConvexPointSet, vtkCubicLine, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyhedron, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPolygon, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticHexahedron, vtkTriQuadraticPyramid, vtkVertex, vtkVoxel, and vtkWedge.
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pure 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)).
Implemented in vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkConvexPointSet, vtkCubicLine, vtkEmptyCell, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolygon, vtkPolyhedron, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPolygon, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticHexahedron, vtkTriQuadraticPyramid, vtkVertex, vtkVoxel, and vtkWedge.
void vtkCell::GetBounds | ( | double | bounds[6] | ) |
Compute cell bounding box (xmin,xmax,ymin,ymax,zmin,zmax).
Copy result into user provided array.
double * vtkCell::GetBounds | ( | ) |
Compute cell bounding box (xmin,xmax,ymin,ymax,zmin,zmax).
Return pointer to array of six double values.
double vtkCell::GetLength2 | ( | ) |
Compute Length squared of cell (i.e., bounding box diagonal squared).
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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 vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderWedge, vtkBiQuadraticQuad, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkConvexPointSet, vtkCubicLine, vtkGenericCell, vtkHexagonalPrism, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolyhedron, vtkPolyLine, vtkPolyVertex, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriangleStrip, vtkTriQuadraticPyramid, vtkVertex, and vtkWedge.
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virtual |
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 vtkBiQuadraticTriangle, vtkCubicLine, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkQuadraticTetra, vtkQuadraticTriangle, vtkTetra, vtkTriangle, and vtkTriQuadraticPyramid.
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inlinevirtual |
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, vtkPolyhedron, vtkPolyLine, vtkPolyVertex, vtkQuadraticPolygon, and vtkTriangleStrip.
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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-nullptr 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 vtkBiQuadraticQuad, vtkBiQuadraticQuadraticHexahedron, vtkBiQuadraticQuadraticWedge, vtkBiQuadraticTriangle, vtkConvexPointSet, vtkCubicLine, vtkGenericCell, vtkHexagonalPrism, vtkHexahedron, vtkHigherOrderCurve, vtkHigherOrderHexahedron, vtkHigherOrderQuadrilateral, vtkHigherOrderTetra, vtkHigherOrderTriangle, vtkHigherOrderWedge, vtkLine, vtkPentagonalPrism, vtkPixel, vtkPolyhedron, vtkPyramid, vtkQuad, vtkQuadraticEdge, vtkQuadraticHexahedron, vtkQuadraticLinearQuad, vtkQuadraticLinearWedge, vtkQuadraticPyramid, vtkQuadraticQuad, vtkQuadraticTetra, vtkQuadraticTriangle, vtkQuadraticWedge, vtkTetra, vtkTriangle, vtkTriQuadraticHexahedron, vtkTriQuadraticPyramid, vtkVertex, vtkVoxel, and vtkWedge.
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inlinevirtual |
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inlinevirtual |