a 3D cell defined by a set of polygonal faces More...

#include <vtkPolyhedron.h>

Inheritance diagram for vtkPolyhedron:

Collaboration diagram for vtkPolyhedron:

Public Types
typedef vtkCell3D	Superclass

Public Types inherited from vtkCell3D
typedef vtkCell	Superclass

Public Types inherited from vtkCell
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. More...

vtkPolyhedron *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. More...

void	GetEdgePoints (vtkIdType vtkNotUsed(edgeId), const vtkIdType *&vtkNotUsed(pts)) override
	See vtkCell3D API for description of these methods. More...

void	GetEdgePoints (int vtkNotUsed(edgeId), int *&vtkNotUsed(pts)) override

vtkIdType	GetFacePoints (vtkIdType vtkNotUsed(faceId), const vtkIdType *&vtkNotUsed(pts)) override

void	GetFacePoints (int vtkNotUsed(faceId), int *&vtkNotUsed(pts)) override

void	GetEdgeToAdjacentFaces (vtkIdType vtkNotUsed(edgeId), const vtkIdType *&vtkNotUsed(pts)) override

vtkIdType	GetFaceToAdjacentFaces (vtkIdType vtkNotUsed(faceId), const vtkIdType *&vtkNotUsed(faceIds)) override

vtkIdType	GetPointToIncidentEdges (vtkIdType vtkNotUsed(pointId), const vtkIdType *&vtkNotUsed(edgeIds)) override

vtkIdType	GetPointToIncidentFaces (vtkIdType vtkNotUsed(pointId), const vtkIdType *&vtkNotUsed(faceIds)) override

vtkIdType	GetPointToOneRingPoints (vtkIdType vtkNotUsed(pointId), const vtkIdType *&vtkNotUsed(pts)) override

bool	GetCentroid (double vtkNotUsed(centroid)[3]) const override

double *	GetParametricCoords () override
	See vtkCell3D API for description of this method. More...

int	GetCellType () override
	See the vtkCell API for descriptions of these methods. More...

int	RequiresInitialization () override
	This cell requires that it be initialized prior to access. More...

void	Initialize () override

int	GetNumberOfEdges () override
	A polyhedron is represented internally by a set of polygonal faces. More...

vtkCell *	GetEdge (int) override
	Return the edge cell from the edgeId of the cell. More...

int	GetNumberOfFaces () override
	Return the number of faces in the cell. More...

vtkCell *	GetFace (int faceId) override
	Return the face cell from the faceId of the cell. More...

void	Contour (double value, vtkDataArray scalars, vtkIncrementalPointLocator locator, vtkCellArray verts, vtkCellArray lines, vtkCellArray polys, vtkPointData inPd, vtkPointData outPd, vtkCellData inCd, vtkIdType cellId, vtkCellData *outCd) override
	Satisfy the vtkCell API. More...

void	Clip (double value, vtkDataArray scalars, vtkIncrementalPointLocator locator, vtkCellArray connectivity, vtkPointData inPd, vtkPointData outPd, vtkCellData inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut) override
	Satisfy the vtkCell API. More...

int	EvaluatePosition (const double x[3], double closestPoint[3], int &subId, double pcoords[3], double &dist2, double weights[]) override
	Satisfy the vtkCell API. More...

void	EvaluateLocation (int &subId, const double pcoords[3], double x[3], double *weights) override
	The inverse of EvaluatePosition. More...

int	IntersectWithLine (const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId) override
	Intersect the line (p1,p2) with a given tolerance tol to determine a point of intersection x[3] with parametric coordinate t along the line. More...

int	Triangulate (int index, vtkIdList ptIds, vtkPoints pts) override
	Use vtkOrderedTriangulator to tetrahedralize the polyhedron mesh. More...

void	Derivatives (int subId, const double pcoords[3], const double values, int dim, double derivs) override
	Computes derivatives at the point specified by the parameter coordinate. More...

int	CellBoundary (int subId, const double pcoords[3], vtkIdList *pts) override
	Find the boundary face closest to the point defined by the pcoords[3] and subId of the cell (subId can be ignored). More...

int	GetParametricCenter (double pcoords[3]) override
	Return the center of the cell in parametric coordinates. More...

int	IsPrimaryCell () override
	A polyhedron is a full-fledged primary cell. More...

void	InterpolateFunctions (const double x[3], double *sf) override
	Compute the interpolation functions/derivatives (aka shape functions/derivatives). More...

void	InterpolateDerivs (const double x[3], double *derivs) override

int	RequiresExplicitFaceRepresentation () override
	Methods supporting the definition of faces. More...

void	SetFaces (vtkIdType *faces) override

vtkIdType *	GetFaces () override

int	IsInside (const double x[3], double tolerance)
	A method particular to vtkPolyhedron. More...

bool	IsConvex ()
	Determine whether or not a polyhedron is convex. More...

vtkPolyData *	GetPolyData ()
	Construct polydata if no one exist, then return this->PolyData. More...

Public Member Functions inherited from vtkCell3D
vtkCell3D *	NewInstance () const

virtual void	GetEdgePoints (vtkIdType edgeId, const vtkIdType *&pts)=0
	Get the pair of vertices that define an edge. More...

virtual void	GetEdgePoints (int edgeId, int *&pts)=0

virtual vtkIdType	GetFacePoints (vtkIdType faceId, const vtkIdType *&pts)=0
	Get the list of vertices that define a face. More...

virtual void	GetFacePoints (int faceId, int *&pts)=0

virtual void	GetEdgeToAdjacentFaces (vtkIdType edgeId, const vtkIdType *&faceIds)=0
	Get the ids of the two adjacent faces to edge of id edgeId. More...

virtual vtkIdType	GetFaceToAdjacentFaces (vtkIdType faceId, const vtkIdType *&faceIds)=0
	Get the ids of the adjacent faces to face of id faceId. More...

virtual vtkIdType	GetPointToIncidentEdges (vtkIdType pointId, const vtkIdType *&edgeIds)=0
	Get the ids of the incident edges to point of id pointId. More...

virtual vtkIdType	GetPointToIncidentFaces (vtkIdType pointId, const vtkIdType *&faceIds)=0
	Get the ids of the incident faces point of id pointId. More...

virtual vtkIdType	GetPointToOneRingPoints (vtkIdType pointId, const vtkIdType *&pts)=0
	Get the ids of a one-ring surrounding point of id pointId. More...

virtual bool	IsInsideOut ()
	Returns true if the normals of the vtkCell3D point inside the cell. More...

virtual bool	GetCentroid (double centroid[3]) const =0
	Computes the centroid of the cell. More...

int	GetCellDimension () override
	The topological dimension of the cell. More...

virtual void	SetMergeTolerance (double)
	Set the tolerance for merging clip intersection points that are near the vertices of cells. More...

virtual double	GetMergeTolerance ()

Public Member Functions inherited from vtkCell
vtkCell *	NewInstance () const

void	Initialize (int npts, const vtkIdType pts, vtkPoints p)
	Initialize cell from outside with point ids and point coordinates specified. More...

void	Initialize (int npts, vtkPoints *p)
	Initialize the cell with point coordinates specified. More...

virtual void	ShallowCopy (vtkCell *c)
	Copy this cell by reference counting the internal data structures. More...

virtual void	DeepCopy (vtkCell *c)
	Copy this cell by completely copying internal data structures. More...

virtual int	IsLinear ()
	Non-linear cells require special treatment beyond the usual cell type and connectivity list information. More...

virtual int	IsExplicitCell ()
	Explicit cells require additional representational information beyond the usual cell type and connectivity list information. More...

virtual void	SetFaces (vtkIdType *vtkNotUsed(faces))

vtkPoints *	GetPoints ()
	Get the point coordinates for the cell. More...

vtkIdType	GetNumberOfPoints ()
	Return the number of points in the cell. More...

vtkIdList *	GetPointIds ()
	Return the list of point ids defining the cell. More...

vtkIdType	GetPointId (int ptId)
	For cell point i, return the actual point id. More...

void	GetBounds (double bounds[6])
	Compute cell bounding box (xmin,xmax,ymin,ymax,zmin,zmax). More...

double *	GetBounds ()
	Compute cell bounding box (xmin,xmax,ymin,ymax,zmin,zmax). More...

double	GetLength2 ()
	Compute Length squared of cell (i.e., bounding box diagonal squared). More...

virtual double	GetParametricDistance (const double pcoords[3])
	Return the distance of the parametric coordinate provided to the cell. More...

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. More...

virtual void	InterpolateDerivs (const double vtkNotUsed(pcoords)[3], double *vtkNotUsed(derivs))

Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)

virtual void	DebugOn ()
	Turn debugging output on. More...

virtual void	DebugOff ()
	Turn debugging output off. More...

bool	GetDebug ()
	Get the value of the debug flag. More...

void	SetDebug (bool debugFlag)
	Set the value of the debug flag. More...

virtual void	Modified ()
	Update the modification time for this object. More...

virtual vtkMTimeType	GetMTime ()
	Return this object's modified time. More...

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)

vtkCommand *	GetCommand (unsigned long tag)

void	RemoveObserver (vtkCommand *)

void	RemoveObservers (unsigned long event, vtkCommand *)

void	RemoveObservers (const char event, vtkCommand )

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)

vtkTypeBool	HasObserver (const char event, vtkCommand )

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)

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. More...

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)

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. More...

int	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not. More...

int	InvokeEvent (const char event, void callData)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string. More...

virtual void	Delete ()
	Delete a VTK object. More...

virtual void	FastDelete ()
	Delete a reference to this object. More...

void	InitializeObjectBase ()

void	Print (ostream &os)
	Print an object to an ostream. More...

virtual void	PrintHeader (ostream &os, vtkIndent indent)

virtual void	PrintTrailer (ostream &os, vtkIndent indent)

virtual void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object). More...

virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object). More...

int	GetReferenceCount ()
	Return the current reference count of this object. More...

void	SetReferenceCount (int)
	Sets the reference count. More...

void	PrintRevisions (ostream &)
	Legacy. More...

Static Public Member Functions
static vtkPolyhedron *	New ()
	Standard new methods. More...

static vtkTypeBool	IsTypeOf (const char *type)

static vtkPolyhedron *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkCell3D
static vtkTypeBool	IsTypeOf (const char *type)

static vtkCell3D *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkCell
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. More...

static void	BreakOnError ()
	This method is called when vtkErrorMacro executes. More...

static void	SetGlobalWarningDisplay (int val)
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static void	GlobalWarningDisplayOn ()

static void	GlobalWarningDisplayOff ()

static int	GetGlobalWarningDisplay ()

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. More...

static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkPolyhedron ()

	~vtkPolyhedron () override

int	GenerateEdges ()

void	GenerateFaces ()

void	ComputeBounds ()

void	ComputeParametricCoordinate (const double x[3], double pc[3])

void	ComputePositionFromParametricCoordinate (const double pc[3], double x[3])

void	ConstructPolyData ()

void	ConstructLocator ()

Protected Member Functions inherited from vtkCell3D
	vtkCell3D ()

	~vtkCell3D () override

Protected Member Functions inherited from vtkCell
	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. More...

void	InternalReleaseFocus ()

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	CollectRevisions (ostream &)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
vtkLine *	Line

vtkTriangle *	Triangle

vtkQuad *	Quad

vtkPolygon *	Polygon

vtkTetra *	Tetra

vtkIdTypeArray *	GlobalFaces

vtkIdTypeArray *	FaceLocations

vtkPointIdMap *	PointIdMap

int	EdgesGenerated

vtkEdgeTable *	EdgeTable

vtkIdTypeArray *	Edges

vtkIdTypeArray *	EdgeFaces

vtkIdTypeArray *	Faces

int	FacesGenerated

int	BoundsComputed

int	PolyDataConstructed

vtkPolyData *	PolyData

vtkCellArray *	Polys

int	LocatorConstructed

vtkCellLocator *	CellLocator

vtkIdList *	CellIds

vtkGenericCell *	Cell

Protected Attributes inherited from vtkCell3D
vtkOrderedTriangulator *	Triangulator

double	MergeTolerance

vtkTetra *	ClipTetra

vtkDoubleArray *	ClipScalars

Protected Attributes inherited from vtkCell
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
Public Attributes inherited from vtkCell
vtkPoints *	Points

vtkIdList *	PointIds

Detailed Description

a 3D cell defined by a set of polygonal faces

vtkPolyhedron is a concrete implementation that represents a 3D cell defined by a set of polygonal faces. The polyhedron should be watertight, non-self-intersecting and manifold (each edge is used twice).

Interpolation functions and weights are defined / computed using the method of Mean Value Coordinates (MVC). See the VTK class vtkMeanValueCoordinatesInterpolator for more information.

The class does not require the polyhedron to be convex. However, the polygonal faces must be planar. Non-planar polygonal faces will definitely cause problems, especially in severely warped situations.

See also: vtkCell3D vtkConvecPointSet vtkMeanValueCoordinatesInterpolator

Definition at line 57 of file vtkPolyhedron.h.

Member Typedef Documentation

◆ Superclass

typedef vtkCell3D vtkPolyhedron::Superclass

Definition at line 65 of file vtkPolyhedron.h.

Constructor & Destructor Documentation

◆ vtkPolyhedron()

vtkPolyhedron::vtkPolyhedron ( )

protected

◆ ~vtkPolyhedron()

vtkPolyhedron::~vtkPolyhedron ( )

overrideprotected

Member Function Documentation

◆ New()

static vtkPolyhedron* vtkPolyhedron::New ( )

static

Standard new methods.

◆ IsTypeOf()

static vtkTypeBool vtkPolyhedron::IsTypeOf ( const char * type )

static

◆ IsA()

virtual vtkTypeBool vtkPolyhedron::IsA ( const char * name )

virtual

Return 1 if this class is the same type of (or a subclass of) the named class.

Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkCell3D.

◆ SafeDownCast()

static vtkPolyhedron* vtkPolyhedron::SafeDownCast ( vtkObjectBase * o )

static

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkPolyhedron::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkCell3D.

◆ NewInstance()

vtkPolyhedron* vtkPolyhedron::NewInstance ( ) const

◆ PrintSelf()

void vtkPolyhedron::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)

overridevirtual

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 vtkCell3D.

◆ GetEdgePoints() [1/2]

void vtkPolyhedron::GetEdgePoints	(	vtkIdType	vtkNotUsededgeId,
		const vtkIdType *&	vtkNotUsedpts
	)

inlineoverride

See vtkCell3D API for description of these methods.

Warning: These method are unimplemented in vtkPolyhedron

Definition at line 74 of file vtkPolyhedron.h.

◆ GetEdgePoints() [2/2]

void vtkPolyhedron::GetEdgePoints	(	int	vtkNotUsededgeId,
		int *&	vtkNotUsedpts
	)

inlineoverride

Definition at line 83 of file vtkPolyhedron.h.

◆ GetFacePoints() [1/2]

vtkIdType vtkPolyhedron::GetFacePoints	(	vtkIdType	vtkNotUsedfaceId,
		const vtkIdType *&	vtkNotUsedpts
	)

inlineoverride

Definition at line 84 of file vtkPolyhedron.h.

◆ GetFacePoints() [2/2]

void vtkPolyhedron::GetFacePoints	(	int	vtkNotUsedfaceId,
		int *&	vtkNotUsedpts
	)

inlineoverride

Definition at line 94 of file vtkPolyhedron.h.

◆ GetEdgeToAdjacentFaces()

void vtkPolyhedron::GetEdgeToAdjacentFaces	(	vtkIdType	vtkNotUsededgeId,
		const vtkIdType *&	vtkNotUsedpts
	)

inlineoverride

Definition at line 95 of file vtkPolyhedron.h.

◆ GetFaceToAdjacentFaces()

vtkIdType vtkPolyhedron::GetFaceToAdjacentFaces	(	vtkIdType	vtkNotUsedfaceId,
		const vtkIdType *&	vtkNotUsedfaceIds
	)

inlineoverride

Definition at line 100 of file vtkPolyhedron.h.

◆ GetPointToIncidentEdges()

vtkIdType vtkPolyhedron::GetPointToIncidentEdges	(	vtkIdType	vtkNotUsedpointId,
		const vtkIdType *&	vtkNotUsededgeIds
	)

inlineoverride

Definition at line 106 of file vtkPolyhedron.h.

◆ GetPointToIncidentFaces()

vtkIdType vtkPolyhedron::GetPointToIncidentFaces	(	vtkIdType	vtkNotUsedpointId,
		const vtkIdType *&	vtkNotUsedfaceIds
	)

inlineoverride

Definition at line 112 of file vtkPolyhedron.h.

◆ GetPointToOneRingPoints()

vtkIdType vtkPolyhedron::GetPointToOneRingPoints	(	vtkIdType	vtkNotUsedpointId,
		const vtkIdType *&	vtkNotUsedpts
	)

inlineoverride

Definition at line 118 of file vtkPolyhedron.h.

◆ GetCentroid()

bool vtkPolyhedron::GetCentroid ( double vtkNotUsed(centroid)[3] ) const

inlineoverride

Definition at line 124 of file vtkPolyhedron.h.

◆ GetParametricCoords()

double* vtkPolyhedron::GetParametricCoords ( )

overridevirtual

See vtkCell3D API for description of this method.

Reimplemented from vtkCell.

◆ GetCellType()

int vtkPolyhedron::GetCellType ( )

inlineoverridevirtual

See the vtkCell API for descriptions of these methods.

Implements vtkCell.

Definition at line 139 of file vtkPolyhedron.h.

◆ RequiresInitialization()

int vtkPolyhedron::RequiresInitialization ( )

inlineoverridevirtual

This cell requires that it be initialized prior to access.

Reimplemented from vtkCell.

Definition at line 144 of file vtkPolyhedron.h.

◆ Initialize()

void vtkPolyhedron::Initialize ( )

overridevirtual

Reimplemented from vtkCell.

◆ GetNumberOfEdges()

int vtkPolyhedron::GetNumberOfEdges ( )

overridevirtual

A polyhedron is represented internally by a set of polygonal faces.

These faces can be processed to explicitly determine edges.

Implements vtkCell.

◆ GetEdge()

vtkCell* vtkPolyhedron::GetEdge ( int edgeId )

overridevirtual

Return the edge cell from the edgeId of the cell.

Implements vtkCell.

◆ GetNumberOfFaces()

int vtkPolyhedron::GetNumberOfFaces ( )

overridevirtual

Return the number of faces in the cell.

Implements vtkCell.

◆ GetFace()

vtkCell* vtkPolyhedron::GetFace ( int faceId )

overridevirtual

Return the face cell from the faceId of the cell.

Implements vtkCell.

◆ Contour()

void vtkPolyhedron::Contour	(	double	value,
		vtkDataArray *	scalars,
		vtkIncrementalPointLocator *	locator,
		vtkCellArray *	verts,
		vtkCellArray *	lines,
		vtkCellArray *	polys,
		vtkPointData *	inPd,
		vtkPointData *	outPd,
		vtkCellData *	inCd,
		vtkIdType	cellId,
		vtkCellData *	outCd
	)

overridevirtual

Satisfy the vtkCell API.

This method contours the input polyhedron and outputs a polygon. When the result polygon is not planar, it will be triangulated. The current implementation assumes water-tight polyhedron cells.

Reimplemented from vtkCell3D.

◆ Clip()

void vtkPolyhedron::Clip	(	double	value,
		vtkDataArray *	scalars,
		vtkIncrementalPointLocator *	locator,
		vtkCellArray *	connectivity,
		vtkPointData *	inPd,
		vtkPointData *	outPd,
		vtkCellData *	inCd,
		vtkIdType	cellId,
		vtkCellData *	outCd,
		int	insideOut
	)

overridevirtual

Satisfy the vtkCell API.

This method clips the input polyhedron and outputs a new polyhedron. The face information of the output polyhedron is encoded in the output vtkCellArray using a special format: CellLength [nCellFaces, nFace0Pts, i, j, k, nFace1Pts, i, j, k, ...]. Use the static method vtkUnstructuredGrid::DecomposePolyhedronCellArray to convert it into a standard format. Note: the algorithm assumes water-tight polyhedron cells.

Reimplemented from vtkCell3D.

◆ EvaluatePosition()

int vtkPolyhedron::EvaluatePosition	(	const double	x[3],
		double	closestPoint[3],
		int &	subId,
		double	pcoords[3],
		double &	dist2,
		double	weights[]
	)

overridevirtual

Satisfy the vtkCell API.

The subId is ignored and zero is always returned. The parametric coordinates pcoords are normalized values in the bounding box of the polyhedron. The weights are determined by evaluating the MVC coordinates. The dist is always zero if the point x[3] is inside the polyhedron; otherwise it's the distance to the surface.

Implements vtkCell.

◆ EvaluateLocation()

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

overridevirtual

The inverse of EvaluatePosition.

Note the weights should be the MVC weights.

Implements vtkCell.

◆ IntersectWithLine()

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

overridevirtual

Intersect the line (p1,p2) with a given tolerance tol to determine a point of intersection x[3] with parametric coordinate t along the line.

The parametric coordinates are returned as well (subId can be ignored). Returns true if the line intersects a face.

Implements vtkCell.

◆ Triangulate()

int vtkPolyhedron::Triangulate	(	int	index,
		vtkIdList *	ptIds,
		vtkPoints *	pts
	)

overridevirtual

Use vtkOrderedTriangulator to tetrahedralize the polyhedron mesh.

This method works well for a convex polyhedron but may return wrong result in a concave case. Once triangulation has been performed, the results are saved in ptIds and pts. The ptIds is a vtkIdList with 4xn number of ids (n is the number of result tetrahedrons). The first 4 represent the point ids of the first tetrahedron, the second 4 represents the point ids of the second tetrahedron and so on. The point ids represent global dataset ids. The points of result tetrahedons are stored in pts. Note that there are 4xm output points (m is the number of points in the original polyhedron). A point may be stored multiple times when it is shared by more than one tetrahedrons. The points stored in pts are ordered the same as they are listed in ptIds.

Implements vtkCell.

◆ Derivatives()

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

overridevirtual

Computes derivatives at the point specified by the parameter coordinate.

Current implementation uses all vertices and subId is not used. To accelerate the speed, the future implementation can triangulate and extract the local tetrahedron from subId and pcoords, then evaluate derivatives on the local tetrahedron.

Implements vtkCell.

◆ CellBoundary()

int vtkPolyhedron::CellBoundary	(	int	subId,
		const double	pcoords[3],
		vtkIdList *	pts
	)

overridevirtual

Find the boundary face closest to the point defined by the pcoords[3] and subId of the cell (subId can be ignored).

Implements vtkCell.

◆ GetParametricCenter()

int vtkPolyhedron::GetParametricCenter ( double pcoords[3] )

inlineoverridevirtual

Return the center of the cell in parametric coordinates.

In this cell, the center of the bounding box is returned.

Reimplemented from vtkCell.

Definition at line 353 of file vtkPolyhedron.h.

◆ IsPrimaryCell()

int vtkPolyhedron::IsPrimaryCell ( )

inlineoverridevirtual

A polyhedron is a full-fledged primary cell.

Reimplemented from vtkCell.

Definition at line 247 of file vtkPolyhedron.h.

◆ InterpolateFunctions()

void vtkPolyhedron::InterpolateFunctions	(	const double	x[3],
		double *	sf
	)

override

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

Here we use the MVC calculation process to compute the interpolation functions.

◆ InterpolateDerivs()

void vtkPolyhedron::InterpolateDerivs	(	const double	x[3],
		double *	derivs
	)

override

◆ RequiresExplicitFaceRepresentation()

int vtkPolyhedron::RequiresExplicitFaceRepresentation ( )

inlineoverridevirtual

Methods supporting the definition of faces.

Note that the GetFaces() returns a list of faces in vtkCellArray form; use the method GetNumberOfFaces() to determine the number of faces in the list. The SetFaces() method is also in vtkCellArray form, except that it begins with a leading count indicating the total number of faces in the list.

Reimplemented from vtkCell.

Definition at line 268 of file vtkPolyhedron.h.

◆ SetFaces()

void vtkPolyhedron::SetFaces ( vtkIdType * faces )

override

◆ GetFaces()

vtkIdType* vtkPolyhedron::GetFaces ( )

overridevirtual

Reimplemented from vtkCell.

◆ IsInside()

int vtkPolyhedron::IsInside	(	const double	x[3],
		double	tolerance
	)

A method particular to vtkPolyhedron.

It determines whether a point x[3] is inside the polyhedron or not (returns 1 is the point is inside, 0 otherwise). The tolerance is expressed in normalized space; i.e., a fraction of the size of the bounding box.

◆ IsConvex()

bool vtkPolyhedron::IsConvex ( )

Determine whether or not a polyhedron is convex.

This method is adapted from Devillers et al., "Checking the Convexity of Polytopes and the Planarity of Subdivisions", Computational Geometry, Volume 11, Issues 3 - 4, December 1998, Pages 187 - 208.

◆ GetPolyData()

vtkPolyData* vtkPolyhedron::GetPolyData ( )

Construct polydata if no one exist, then return this->PolyData.

◆ GenerateEdges()

int vtkPolyhedron::GenerateEdges ( )

protected

◆ GenerateFaces()

void vtkPolyhedron::GenerateFaces ( )

protected

◆ ComputeBounds()

void vtkPolyhedron::ComputeBounds ( )

protected

◆ ComputeParametricCoordinate()

void vtkPolyhedron::ComputeParametricCoordinate	(	const double	x[3],
		double	pc[3]
	)

protected

◆ ComputePositionFromParametricCoordinate()

void vtkPolyhedron::ComputePositionFromParametricCoordinate	(	const double	pc[3],
		double	x[3]
	)

protected

◆ ConstructPolyData()

void vtkPolyhedron::ConstructPolyData ( )

protected

◆ ConstructLocator()

void vtkPolyhedron::ConstructLocator ( )

protected

Member Data Documentation

◆ Line

vtkLine* vtkPolyhedron::Line

protected

Definition at line 299 of file vtkPolyhedron.h.

◆ Triangle

vtkTriangle* vtkPolyhedron::Triangle

protected

Definition at line 300 of file vtkPolyhedron.h.

◆ Quad

vtkQuad* vtkPolyhedron::Quad

protected

Definition at line 301 of file vtkPolyhedron.h.

◆ Polygon

vtkPolygon* vtkPolyhedron::Polygon

protected

Definition at line 302 of file vtkPolyhedron.h.

◆ Tetra

vtkTetra* vtkPolyhedron::Tetra

protected

Definition at line 303 of file vtkPolyhedron.h.

◆ GlobalFaces

vtkIdTypeArray* vtkPolyhedron::GlobalFaces

protected

Definition at line 304 of file vtkPolyhedron.h.

◆ FaceLocations

vtkIdTypeArray* vtkPolyhedron::FaceLocations

protected

Definition at line 305 of file vtkPolyhedron.h.

◆ PointIdMap

vtkPointIdMap* vtkPolyhedron::PointIdMap

protected

Definition at line 312 of file vtkPolyhedron.h.

◆ EdgesGenerated

int vtkPolyhedron::EdgesGenerated

protected

Definition at line 316 of file vtkPolyhedron.h.

◆ EdgeTable

vtkEdgeTable* vtkPolyhedron::EdgeTable

protected

Definition at line 317 of file vtkPolyhedron.h.

◆ Edges

vtkIdTypeArray* vtkPolyhedron::Edges

protected

Definition at line 318 of file vtkPolyhedron.h.

◆ EdgeFaces

vtkIdTypeArray* vtkPolyhedron::EdgeFaces

protected

Definition at line 319 of file vtkPolyhedron.h.

◆ Faces

vtkIdTypeArray* vtkPolyhedron::Faces

protected

Definition at line 326 of file vtkPolyhedron.h.

◆ FacesGenerated

int vtkPolyhedron::FacesGenerated

protected

Definition at line 327 of file vtkPolyhedron.h.

◆ BoundsComputed

int vtkPolyhedron::BoundsComputed

protected

Definition at line 331 of file vtkPolyhedron.h.

◆ PolyDataConstructed

int vtkPolyhedron::PolyDataConstructed

protected

Definition at line 337 of file vtkPolyhedron.h.

◆ PolyData

vtkPolyData* vtkPolyhedron::PolyData

protected

Definition at line 338 of file vtkPolyhedron.h.

◆ Polys

vtkCellArray* vtkPolyhedron::Polys

protected

Definition at line 339 of file vtkPolyhedron.h.

◆ LocatorConstructed

int vtkPolyhedron::LocatorConstructed

protected

Definition at line 341 of file vtkPolyhedron.h.

◆ CellLocator

vtkCellLocator* vtkPolyhedron::CellLocator

protected

Definition at line 342 of file vtkPolyhedron.h.

◆ CellIds

vtkIdList* vtkPolyhedron::CellIds

protected

Definition at line 344 of file vtkPolyhedron.h.

◆ Cell

vtkGenericCell* vtkPolyhedron::Cell

protected

Definition at line 345 of file vtkPolyhedron.h.

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

dox/Common/DataModel/vtkPolyhedron.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Superclass

Constructor & Destructor Documentation

◆ vtkPolyhedron()

◆ ~vtkPolyhedron()

Member Function Documentation

◆ New()

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ PrintSelf()

◆ GetEdgePoints() [1/2]

◆ GetEdgePoints() [2/2]

◆ GetFacePoints() [1/2]

◆ GetFacePoints() [2/2]

◆ GetEdgeToAdjacentFaces()

◆ GetFaceToAdjacentFaces()

◆ GetPointToIncidentEdges()

◆ GetPointToIncidentFaces()

◆ GetPointToOneRingPoints()

◆ GetCentroid()

◆ GetParametricCoords()

◆ GetCellType()

◆ RequiresInitialization()

◆ Initialize()

◆ GetNumberOfEdges()

◆ GetEdge()

◆ GetNumberOfFaces()

◆ GetFace()

◆ Contour()

◆ Clip()

◆ EvaluatePosition()

◆ EvaluateLocation()

◆ IntersectWithLine()

◆ Triangulate()

◆ Derivatives()

◆ CellBoundary()

◆ GetParametricCenter()

◆ IsPrimaryCell()

◆ InterpolateFunctions()

◆ InterpolateDerivs()

◆ RequiresExplicitFaceRepresentation()

◆ SetFaces()

◆ GetFaces()

◆ IsInside()

◆ IsConvex()

◆ GetPolyData()

◆ GenerateEdges()

◆ GenerateFaces()

◆ ComputeBounds()

◆ ComputeParametricCoordinate()

◆ ComputePositionFromParametricCoordinate()

◆ ConstructPolyData()

◆ ConstructLocator()

Member Data Documentation

◆ Line

◆ Triangle

◆ Quad

◆ Polygon

◆ Tetra

◆ GlobalFaces

◆ FaceLocations

◆ PointIdMap

◆ EdgesGenerated

◆ EdgeTable

◆ Edges

◆ EdgeFaces

◆ Faces

◆ FacesGenerated

◆ BoundsComputed

◆ PolyDataConstructed