PbQuadrangleCell Class Reference

Defines a quadrangle cell of a surface mesh. More...

#include <MeshViz/3Ddata/PbQuadrangleCell.h>

Inheritance diagram for PbQuadrangleCell:

Public Member Functions
	PbQuadrangleCell (const PbMesh *owner_mesh)
	Constructor of a default simple cell.
	PbQuadrangleCell (const PbQuadrangleCell &cell)
	Copy constructor.
	~PbQuadrangleCell ()
	Destructor.
PbQuadrangleCell &	operator= (const PbQuadrangleCell &cell)
	Assignment operator.
virtual float	getLongestEdgeLength () const
	Gets the length of the longest edge of the cell.
virtual float	getVolume () const
	Returns always 0.
virtual float	getArea () const
	Gets the area of a cell.
virtual void	getNodesIndexOfEdge (int edge, PbArrayOfInt &nodes_index) const
	Gets the array of 2 index mesh's nodes that belongs to a given edge of this cell.
virtual void	getNodesIndexOfFacet (int facet, PbArrayOfInt &nodes_index) const
	Gets the array of index mesh's nodes that belongs to a given facet of this cell.
virtual void	getNodesLocalIndexOfEdge (int edge, PbArrayOfInt &nodes_index) const
	Gets the array of 2 nodes index that belongs to a given edge of this cell.
virtual void	getNodesLocalIndexOfFacet (int facet, PbArrayOfInt &nodes_index) const
	Gets the array of node index that belongs to a given facet of this cell.
virtual int	locatePoint (const SbVec3f &coord, float tolerance, SbVec3f &pcoord) const
	Returns 1 if the point is inside the cell, 0 otherwise.
virtual void	getWeight (const SbVec3f &pcoord, float *weight) const
	Gets the 4 weights of a point defined by its parametric coordinates.
void	getDerivs (const SbVec3f &pcoord, float *derivs) const
	Gets the derivs of a point defined by its parametric coordinates.
Public Member Functions inherited from PbCell
	PbCell ()
	Constructor.
	PbCell (const PbCell &cell)
	Copy constructor.
	~PbCell ()
	Destructor.
PbCell &	operator= (const PbCell &cell)
	Assignment operator.
virtual SbBox3f	getBoundingBox () const
	Gets the cell's bounding box.
virtual void	getBounds (float &xmin, float &ymin, float &zmin, float &xmax, float &ymax, float &zmax) const
	Gets the cell's bounds.
virtual SbVec3f	getCenter () const
	Gets the cell's geometric center.
int	getNumFacets () const
	Gets the number of facets.
int	getNumEdges () const
	Gets the number of edges.
int	getNumNodes () const
	Gets the number of nodes.
int	getIndex () const
	Gets the index of the cell in the mesh.
SbVec3f	getNodeCoord (int nod) const
	Gets the coordinate of the nod (nod must be >=0 and < getNumNodes()).
int	getNodeIndex (int nod) const
	Gets the index (in the mesh) of a nod (nod must be >=0 and < getNumNodes()).
void	getNodesIndex (PbArrayOfInt &nodes_index) const
	Gets the array of index mesh's nodes that belongs to this cell.
virtual float	getValue (const SbVec3f &pcoord, const float *s) const
	Get the scalar value of a point in the cell.
virtual SbVec3f	getValue (const SbVec3f &pcoord, const SbVec3f *v) const
	Get the vector value of a point in the cell.
float	getValue (const float *weight, const float *s) const
	Gets the scalar value of a point in this cell, given the point's weights.
SbVec3f	getValue (const float *weight, const SbVec3f *v) const
	Gets the vector value of a point in this cell, given the point's weights.
Public Member Functions inherited from PbBase
void	enableConnection (SbBool flag)
	Activates/deactivates the mechanism of connection.
SbBool	isConnectionEnabled () const
	Returns TRUE if the connection mechanism is active, otherwise FALSE.
void	touch ()
	Simulates the changing of an instance of this object, so all connected objects are informed of this change.
PbBase &	operator= (const PbBase &base)
	Assignment operator.

Detailed Description

Defines a quadrangle cell of a surface mesh.

A quadrangle cell is not necessarily a square, it can be a rectangle or a lozenge.

Nodes and edges are numbered as following :

             3-----------2   edge 0 = 01
             |           |   edge 1 = 12
             |           |   edge 2 = 23
             |           |   edge 3 = 30
             |           |
             |           |
             0-----------1

Definition at line 53 of file PbQuadrangleCell.h.

Constructor & Destructor Documentation

PbQuadrangleCell() [1/2]

PbQuadrangleCell::PbQuadrangleCell

(

const PbMesh *

owner_mesh

)

Constructor of a default simple cell.

PbQuadrangleCell() [2/2]

PbQuadrangleCell::PbQuadrangleCell

(

const PbQuadrangleCell &

cell

)

Copy constructor.

~PbQuadrangleCell()

PbQuadrangleCell::~PbQuadrangleCell

(

)

Destructor.

Member Function Documentation

getArea()

virtual float PbQuadrangleCell::getArea ( ) const

virtual

Gets the area of a cell.

Implements PbCell.

getDerivs()

void PbQuadrangleCell::getDerivs	(	const SbVec3f &	pcoord,
		float *	derivs
	)		const

Gets the derivs of a point defined by its parametric coordinates.

getLongestEdgeLength()

virtual float PbQuadrangleCell::getLongestEdgeLength ( ) const

virtual

Gets the length of the longest edge of the cell.

Implements PbCell.

getNodesIndexOfEdge()

virtual void PbQuadrangleCell::getNodesIndexOfEdge ( int  edge, PbArrayOfInt &  nodes_index  ) const

virtual

Gets the array of 2 index mesh's nodes that belongs to a given edge of this cell.

(edge must be >=0 and < 4)

Implements PbCell.

getNodesIndexOfFacet()

virtual void PbQuadrangleCell::getNodesIndexOfFacet ( int  facet, PbArrayOfInt &  nodes_index  ) const

virtual

Gets the array of index mesh's nodes that belongs to a given facet of this cell.

(facet must be == 0).

Implements PbCell.

getNodesLocalIndexOfEdge()

virtual void PbQuadrangleCell::getNodesLocalIndexOfEdge ( int  edge, PbArrayOfInt &  nodes_index  ) const

virtual

Gets the array of 2 nodes index that belongs to a given edge of this cell.

edge must be >=0 and < 4. Each index is >=0 and < 4

Implements PbCell.

getNodesLocalIndexOfFacet()

virtual void PbQuadrangleCell::getNodesLocalIndexOfFacet ( int  facet, PbArrayOfInt &  nodes_index  ) const

virtual

Gets the array of node index that belongs to a given facet of this cell.

facet must be == 0. Each index is >=0 and < 4.

Implements PbCell.

getVolume()

virtual float PbQuadrangleCell::getVolume ( ) const

inlinevirtual

Returns always 0.

Implements PbCell.

Definition at line 86 of file PbQuadrangleCell.h.

getWeight()

virtual void PbQuadrangleCell::getWeight ( const SbVec3f &  pcoord, float *  weight  ) const

virtual

Gets the 4 weights of a point defined by its parametric coordinates.

Implements PbCell.

locatePoint()

virtual int PbQuadrangleCell::locatePoint ( const SbVec3f &  coord, float  tolerance, SbVec3f &  pcoord  ) const

virtual

Returns 1 if the point is inside the cell, 0 otherwise.

Gets also the parametric coordinate of the point and its weights

Implements PbCell.

operator=()

PbQuadrangleCell & PbQuadrangleCell::operator=

(

const PbQuadrangleCell &

cell

)

Assignment operator.

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

• MeshViz/3Ddata/PbQuadrangleCell.h