a cell that represents a triangle More...

#include <vtkTriangle.h>

Inheritance diagram for vtkTriangle:

Collaboration diagram for vtkTriangle:

Public Types
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...

vtkTriangle *	NewInstance () const

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

vtkCell *	GetEdge (int edgeId) override
	Get the edge specified by edgeId (range 0 to 2) and return that edge's coordinates. More...

double	ComputeArea ()
	A convenience function to compute the area of a vtkTriangle. More...

void	Clip (double value, vtkDataArray cellScalars, vtkIncrementalPointLocator locator, vtkCellArray polys, vtkPointData inPd, vtkPointData outPd, vtkCellData inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut) override
	Clip this triangle using scalar value provided. More...

int *	GetEdgeArray (int edgeId)
	Return the ids of the vertices defining edge (`edgeId`). More...

int	IntersectWithLine (const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId) override
	Plane intersection plus in/out test on triangle. More...

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

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


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

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

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

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

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

int	CellBoundary (int subId, const double pcoords[3], vtkIdList *pts) override
	See the vtkCell API for descriptions of these methods. More...

void	Contour (double value, vtkDataArray cellScalars, vtkIncrementalPointLocator locator, vtkCellArray verts, vtkCellArray lines, vtkCellArray polys, vtkPointData inPd, vtkPointData outPd, vtkCellData inCd, vtkIdType cellId, vtkCellData *outCd) override
	See the vtkCell API for descriptions of these methods. More...

int	EvaluatePosition (const double x[3], double closestPoint[3], int &subId, double pcoords[3], double &dist2, double weights[]) override
	See the vtkCell API for descriptions of these methods. More...

void	EvaluateLocation (int &subId, const double pcoords[3], double x[3], double *weights) override
	See the vtkCell API for descriptions of these methods. More...

int	Triangulate (int index, vtkIdList ptIds, vtkPoints pts) override
	See the vtkCell API for descriptions of these methods. More...

void	Derivatives (int subId, const double pcoords[3], const double values, int dim, double derivs) override
	See the vtkCell API for descriptions of these methods. More...

double *	GetParametricCoords () override
	See the vtkCell API for descriptions of these methods. More...


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

void	InterpolateDerivs (const double pcoords[3], double derivs[6]) override
	Compute the interpolation functions/derivatives (aka shape functions/derivatives) More...

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

void	Initialize (int npts, 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	RequiresInitialization ()
	Some cells require initialization prior to access. More...

virtual void	Initialize ()

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

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). More...

virtual void	SetFaces (vtkIdType *vtkNotUsed(faces))

virtual vtkIdType *	GetFaces ()

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 int	IsPrimaryCell ()
	Return whether this cell type has a fixed topology or whether the topology varies depending on the data (e.g., vtkConvexPointSet). 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...

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. More...

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

vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObservers (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

vtkTypeBool	HasObserver (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

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)
	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, 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)
	This method invokes an event and return whether the event was aborted or not. More...

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	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...

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

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

Static Public Member Functions
static vtkTriangle *	New ()

static vtkTypeBool	IsTypeOf (const char *type)

static vtkTriangle *	SafeDownCast (vtkObjectBase *o)

static void	InterpolationFunctions (const double pcoords[3], double sf[3])

static void	InterpolationDerivs (const double pcoords[3], double derivs[6])

static void	TriangleCenter (double p1[3], double p2[3], double p3[3], double center[3])
	Compute the center of the triangle. More...

static double	TriangleArea (double p1[3], double p2[3], double p3[3])
	Compute the area of a triangle in 3D. More...

static double	Circumcircle (double p1[2], double p2[2], double p3[2], double center[2])
	Compute the circumcenter (center[3]) and radius squared (method return value) of a triangle defined by the three points x1, x2, and x3. More...

static int	BarycentricCoords (double x[2], double x1[2], double x2[2], double x3[2], double bcoords[3])
	Given a 2D point x[2], determine the barycentric coordinates of the point. More...

static int	ProjectTo2D (double x1[3], double x2[3], double x3[3], double v1[2], double v2[2], double v3[2])
	Project triangle defined in 3D to 2D coordinates. More...

static void	ComputeNormal (vtkPoints p, int numPts, vtkIdType pts, double n[3])
	Compute the triangle normal from a points list, and a list of point ids that index into the points list. More...

static void	ComputeNormal (double v1[3], double v2[3], double v3[3], double n[3])
	Compute the triangle normal from three points. More...

static void	ComputeNormalDirection (double v1[3], double v2[3], double v3[3], double n[3])
	Compute the (unnormalized) triangle normal direction from three points. More...

static int	TrianglesIntersect (double p1[3], double q1[3], double r1[3], double p2[3], double q2[3], double r2[3])

static int	PointInTriangle (double x[3], double x1[3], double x2[3], double x3[3], double tol2)


static void	ComputeQuadric (double x1[3], double x2[3], double x3[3], double quadric[4][4])
	Calculate the error quadric for this triangle. More...

static void	ComputeQuadric (double x1[3], double x2[3], double x3[3], vtkQuadric *quadric)
	Calculate the error quadric for this triangle. More...

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

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

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

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

	vtkTriangle ()

	~vtkTriangle () 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 ()
	These methods allow a command to exclusively grab all events. More...

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

Protected Attributes inherited from vtkCell
double	Bounds [6]

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Additional Inherited Members
Public Attributes inherited from vtkCell
vtkPoints *	Points

vtkIdList *	PointIds

Detailed Description

a cell that represents a triangle

vtkTriangle is a concrete implementation of vtkCell to represent a triangle located in 3-space.

Examples:: vtkTriangle (Examples)

Tests:: vtkTriangle (Tests)

Definition at line 41 of file vtkTriangle.h.

Member Typedef Documentation

typedef vtkCell vtkTriangle::Superclass

Definition at line 45 of file vtkTriangle.h.

Constructor & Destructor Documentation

vtkTriangle::vtkTriangle ( )

protected

vtkTriangle::~vtkTriangle ( )

overrideprotected

Member Function Documentation

static vtkTriangle* vtkTriangle::New ( )

static

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

static

virtual vtkTypeBool vtkTriangle::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 vtkCell.

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

static

virtual vtkObjectBase* vtkTriangle::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkCell.

vtkTriangle* vtkTriangle::NewInstance ( ) const

void vtkTriangle::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 vtkCell.

vtkCell* vtkTriangle::GetEdge ( int edgeId )

overridevirtual

Get the edge specified by edgeId (range 0 to 2) and return that edge's coordinates.

Implements vtkCell.

int vtkTriangle::GetCellType ( )

inlineoverridevirtual