vtkLagrangeTriangle Class Reference

A 2D cell that represents an arbitrary order Lagrange triangle. More...

#include <vtkLagrangeTriangle.h>

Inheritance diagram for vtkLagrangeTriangle:

Collaboration diagram for vtkLagrangeTriangle:

Public Types
typedef vtkHigherOrderTriangle	Superclass
Public Types inherited from vtkHigherOrderTriangle
typedef vtkNonLinearCell	Superclass
Public Types inherited from vtkNonLinearCell
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...
vtkLagrangeTriangle *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. More...
int	GetCellType () override
	Return the type of cell. More...
vtkCell *	GetEdge (int edgeId) override
	Return the edge cell from the edgeId of the cell. More...
void	InterpolateFunctions (const double pcoords[3], double *weights) override
void	InterpolateDerivs (const double pcoords[3], double *derivs) override
vtkHigherOrderCurve *	GetEdgeCell () override
Public Member Functions inherited from vtkHigherOrderTriangle
vtkHigherOrderTriangle *	NewInstance () const
int	GetCellDimension () override
	Return the topological dimensional of the cell (0,1,2, or 3). More...
int	RequiresInitialization () override
	Some cells require initialization prior to access. More...
int	GetNumberOfEdges () override
	Return the number of edges in the cell. More...
int	GetNumberOfFaces () override
	Return the number of faces in the cell. More...
void	SetEdgeIdsAndPoints (int edgeId, const std::function< void(const vtkIdType &)> &set_number_of_ids_and_points, const std::function< void(const vtkIdType &, const vtkIdType &)> &set_ids_and_points)
vtkCell *	GetFace (int) override
	Return the face cell from the faceId of the cell. More...
void	Initialize () override
int	CellBoundary (int subId, const double pcoords[3], vtkIdList *pts) override
	Given parametric coordinates of a point, return the closest cell boundary, and whether the point is inside or outside of the cell. More...
int	EvaluatePosition (const double x[3], double closestPoint[3], int &subId, double pcoords[3], double &dist2, double weights[]) override
	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. More...
void	EvaluateLocation (int &subId, const double pcoords[3], double x[3], double *weights) override
	Determine global coordinate (x[3]) from subId and parametric coordinates. 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
	Generate contouring primitives. More...
void	Clip (double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut) override
	Cut (or clip) the cell based on the input cellScalars and the specified value. 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 with a ray. More...
int	Triangulate (int index, vtkIdList *ptIds, vtkPoints *pts) override
	Generate simplices of proper dimension. More...
void	JacobianInverse (const double pcoords[3], double **inverse, double *derivs)
void	Derivatives (int subId, const double pcoords[3], const double *values, int dim, double *derivs) override
	Compute derivatives given cell subId and parametric coordinates. More...
void	SetParametricCoords ()
double *	GetParametricCoords () override
	Return a contiguous array of parametric coordinates of the points defining this cell. More...
int	GetParametricCenter (double pcoords[3]) override
	Return center of the cell in parametric coordinates. More...
double	GetParametricDistance (const double pcoords[3]) override
	Return the distance of the parametric coordinate provided to the cell. More...
vtkIdType	GetOrder () const
vtkIdType	ComputeOrder ()
void	ToBarycentricIndex (vtkIdType index, vtkIdType *bindex)
vtkIdType	ToIndex (const vtkIdType *bindex)
Public Member Functions inherited from vtkNonLinearCell
vtkNonLinearCell *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. More...
int	IsLinear () override
	Non-linear cells require special treatment (tessellation) when converting to graphics primitives (during mapping). More...
virtual bool	StableClip (double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *connectivity, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut)
	Clip the cell based on the input cellScalars and the specified value. More...
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	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 () const
	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...
virtual int	Inflate (double dist)
	Inflates the cell. More...
virtual double	ComputeBoundingSphere (double center[3]) const
	Computes the bounding sphere of the cell. 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))
virtual int	IntersectWithCell (vtkCell *other, double tol=0.0)
	Intersects with an other cell. More...
virtual int	IntersectWithCell (vtkCell *other, const vtkBoundingBox &boudingBox, const vtkBoundingBox &otherBoundingBox, double tol=0.0)
	Intersects with an other cell. More...
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)
std::string	GetObjectDescription () const override
	The object description printed in messages and PrintSelf output. 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)
	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...
virtual void	SetObjectName (const std::string &objectName)
	Set/get the name of this object for reporting purposes. More...
virtual std::string	GetObjectName () const
	Set/get the name of this object for reporting purposes. More...
Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string. More...
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). 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...
bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space. 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...
virtual bool	UsesGarbageCollector () const
	Indicate whether the class uses vtkGarbageCollector or not. More...

Static Public Member Functions
static vtkLagrangeTriangle *	New ()
static vtkTypeBool	IsTypeOf (const char *type)
static vtkLagrangeTriangle *	SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkHigherOrderTriangle
static vtkTypeBool	IsTypeOf (const char *type)
static vtkHigherOrderTriangle *	SafeDownCast (vtkObjectBase *o)
static bool	PointCountSupportsUniformOrder (vtkIdType pointsPerTri)
	Return true if the number of points supports a cell of uniform degree along each axis. More...
static void	BarycentricIndex (vtkIdType index, vtkIdType *bindex, vtkIdType order)
static vtkIdType	Index (const vtkIdType *bindex, vtkIdType order)
static double	Eta (vtkIdType n, vtkIdType chi, double sigma)
static double	Deta (vtkIdType n, vtkIdType chi, double sigma)
Static Public Member Functions inherited from vtkNonLinearCell
static vtkTypeBool	IsTypeOf (const char *type)
static vtkNonLinearCell *	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 ()
	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 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). More...
static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within. More...
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. More...

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkLagrangeTriangle ()
	~vtkLagrangeTriangle () override
vtkIdType	GetNumberOfSubtriangles () const
vtkIdType	ComputeNumberOfSubtriangles ()
Protected Member Functions inherited from vtkHigherOrderTriangle
	vtkHigherOrderTriangle ()
	~vtkHigherOrderTriangle () override
vtkIdType	GetNumberOfSubtriangles () const
vtkIdType	ComputeNumberOfSubtriangles ()
void	SubtriangleBarycentricPointIndices (vtkIdType cellIndex, vtkIdType(&pointBIndices)[3][3])
Protected Member Functions inherited from vtkNonLinearCell
	vtkNonLinearCell ()
	~vtkNonLinearCell () override=default
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	ReportReferences (vtkGarbageCollector *)
	vtkObjectBase (const vtkObjectBase &)
void	operator= (const vtkObjectBase &)

Protected Attributes
vtkNew< vtkLagrangeCurve >	EdgeCell
Protected Attributes inherited from vtkHigherOrderTriangle
vtkTriangle *	Face
vtkDoubleArray *	Scalars
vtkIdType	Order
vtkIdType	NumberOfSubtriangles
vtkSmartPointer< vtkPoints >	PointParametricCoordinates
std::vector< vtkIdType >	BarycentricIndexMap
std::vector< vtkIdType >	IndexMap
std::vector< vtkIdType >	SubtriangleIndexMap
Protected Attributes inherited from vtkCell
double	Bounds [6]
Protected Attributes inherited from vtkObject
bool	Debug
vtkTimeStamp	MTime
vtkSubjectHelper *	SubjectHelper
std::string	ObjectName
Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount
vtkWeakPointerBase **	WeakPointers

Additional Inherited Members
Public Attributes inherited from vtkCell
vtkPoints *	Points
vtkIdList *	PointIds
Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()
static vtkReallocingFunction	GetCurrentReallocFunction ()
static vtkFreeingFunction	GetCurrentFreeFunction ()
static vtkFreeingFunction	GetAlternateFreeFunction ()

Detailed Description

A 2D cell that represents an arbitrary order Lagrange triangle.

vtkLagrangeTriangle is a concrete implementation of vtkCell to represent a 2D triangle using Lagrange shape functions of user specified order.

The number of points in a Lagrange cell determines the order over which they are iterated relative to the parametric coordinate system of the cell. The first points that are reported are vertices. They appear in the same order in which they would appear in linear cells. Mid-edge points are reported next. They are reported in sequence. For two- and three-dimensional (3D) cells, the following set of points to be reported are face points. Finally, 3D cells report points interior to their volume.

Tests:

vtkLagrangeTriangle (Tests)

Definition at line 47 of file vtkLagrangeTriangle.h.

Member Typedef Documentation

Superclass

typedef vtkHigherOrderTriangle vtkLagrangeTriangle::Superclass

Definition at line 51 of file vtkLagrangeTriangle.h.

Constructor & Destructor Documentation

vtkLagrangeTriangle()

vtkLagrangeTriangle::vtkLagrangeTriangle ( )

protected

~vtkLagrangeTriangle()

vtkLagrangeTriangle::~vtkLagrangeTriangle ( )

overrideprotected

Member Function Documentation

New()

static vtkLagrangeTriangle* vtkLagrangeTriangle::New ( )

static

IsTypeOf()

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

static

IsA()

virtual vtkTypeBool vtkLagrangeTriangle::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 vtkHigherOrderTriangle.

SafeDownCast()

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

static

NewInstanceInternal()

virtual vtkObjectBase* vtkLagrangeTriangle::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkHigherOrderTriangle.

NewInstance()

vtkLagrangeTriangle* vtkLagrangeTriangle::NewInstance

(

)

const

PrintSelf()

void vtkLagrangeTriangle::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 vtkHigherOrderTriangle.

GetCellType()

int vtkLagrangeTriangle::GetCellType ( )

inlineoverridevirtual

Return the type of cell.

Implements vtkHigherOrderTriangle.

Definition at line 53 of file vtkLagrangeTriangle.h.

GetEdge()

vtkCell* vtkLagrangeTriangle::GetEdge ( int  edgeId )

overridevirtual

Return the edge cell from the edgeId of the cell.

Implements vtkHigherOrderTriangle.

InterpolateFunctions()

void vtkLagrangeTriangle::InterpolateFunctions ( const double  pcoords[3], double *  weights  )

overridevirtual

Implements vtkHigherOrderTriangle.

InterpolateDerivs()

void vtkLagrangeTriangle::InterpolateDerivs ( const double  pcoords[3], double *  derivs  )

overridevirtual

Implements vtkHigherOrderTriangle.

GetEdgeCell()

vtkHigherOrderCurve* vtkLagrangeTriangle::GetEdgeCell ( )

overridevirtual

Implements vtkHigherOrderTriangle.

GetNumberOfSubtriangles()

vtkIdType vtkLagrangeTriangle::GetNumberOfSubtriangles ( ) const

inlineprotected

Definition at line 65 of file vtkLagrangeTriangle.h.

ComputeNumberOfSubtriangles()

vtkIdType vtkLagrangeTriangle::ComputeNumberOfSubtriangles ( )

protected

Member Data Documentation

EdgeCell

vtkNew<vtkLagrangeCurve> vtkLagrangeTriangle::EdgeCell

protected

Definition at line 67 of file vtkLagrangeTriangle.h.

---

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

• Common/DataModel/vtkLagrangeTriangle.h