PbQuadrangleMesh2D Class Reference
[Property/Data]

MeshViz Defines a surface mesh of quadrangles. More...

#include <MeshViz/3Ddata/PbQuadrangleMesh2D.h>

Inheritance diagram for PbQuadrangleMesh2D:
PbIndexedMesh2D PbMesh2D PbMesh PbBase

List of all members.

Public Member Functions

 PbQuadrangleMesh2D (SbBool isDataDuplicate=TRUE)
 PbQuadrangleMesh2D (const PbQuadrangleMesh2D &mesh)
 PbQuadrangleMesh2D (int num_nodes, const float *x_nod, const float *y_nod, int num_quadrangles, const int32_t *quadrangle_index, SbBool isDataDuplicate=TRUE)
 PbQuadrangleMesh2D (int num_nodes, const float *x_nod, const float *y_nod, const float *z_nod, int num_quadrangles, const int32_t *quadrangle_index, SbBool isDataDuplicate=TRUE)
 ~PbQuadrangleMesh2D ()
PbQuadrangleMesh2D & operator= (const PbQuadrangleMesh2D &mesh)
void setGeometry (int num_nodes, const float *x_nod, const float *y_nod, int num_quadrangles, const int *quadrangle_index)
void setGeometry (int num_nodes, const float *x_nod, const float *y_nod, const float *z_nod, int num_quadrangles, const int *quadrangle_index)
void getGeometry (int &num_nodes, const float *&x_nod, const float *&y_nod, int &num_quadrangles, const int32_t *&quadrangle_index) const
void getGeometry (int &num_nodes, const float *&x_nod, const float *&y_nod, const float *&z_nod, int &num_quadrangles, const int32_t *&quadrangle_index) const
void getGeometry (int &num_nodes, const float *&x_nod, const float *&y_nod, int &num_quadrangles, const int32_t **&quadrangle_index) const
void getGeometry (int &num_nodes, const float *&x_nod, const float *&y_nod, const float *&z_nod, int &num_quadrangles, const int32_t **&quadrangle_index) const
virtual void getNodesOwnerCellsInd (const PbArrayOfInt &nod_indices, PbArrayOfInt &owner_cells) const
virtual const PbCell * getCell (int cell_index) const
virtual void setElemOrientation (ElemOrientation elem_orient)

Friends

int operator== (const PbQuadrangleMesh2D &m1, const PbQuadrangleMesh2D &m2)
int operator!= (const PbQuadrangleMesh2D &m1, const PbQuadrangleMesh2D &m2)

Detailed Description

MeshViz Defines a surface mesh of quadrangles.

Class to define an indexed 2D mesh made up of quadrangles cells. This mesh is defined by a list of quadrangles. Each quadrangles is defined by 4 indices of nodes.

The nodes coordinates are defined by 2 (or 3) arrays x_nod, y_nod, (and z_nod) of num_nodes floats. The quadrangles are defined by the array quadrangle_index of num_quadrangles*4 integers. quadrangle_index[(n*4)+p] is the p-th node index of the n-th quadrangle of the mesh (0 <= p <= 4). Each quadrangle must be numbered by repecting the following rule : the edge linking the first and the second index must not be a diagonal of the quadrangle.

Each edge of a quadrangle may have 2 references in the mesh, that is, one edge is common to 2 quadrangles. The edges which are referred to once in the mesh define the limits of the mesh.

The values on the mesh nodes are defined by the PbMesh::addValuesSet(set_index,val) method, where val argument is an array of num_nodes floats.

Constructor & Destructor Documentation

PbQuadrangleMesh2D::PbQuadrangleMesh2D ( SbBool  isDataDuplicate = TRUE  ) 

Constructor of a default simple mesh.

See also PbMesh for more explanations about data duplication.

PbQuadrangleMesh2D::PbQuadrangleMesh2D ( const PbQuadrangleMesh2D &  mesh  ) 

Copy constructor.

PbQuadrangleMesh2D::PbQuadrangleMesh2D ( int  num_nodes,
const float *  x_nod,
const float *  y_nod,
int  num_quadrangles,
const int32_t *  quadrangle_index,
SbBool  isDataDuplicate = TRUE 
)

Constructor of a 2D surface mesh.

See also PbMesh for more explanations about data duplication.

PbQuadrangleMesh2D::PbQuadrangleMesh2D ( int  num_nodes,
const float *  x_nod,
const float *  y_nod,
const float *  z_nod,
int  num_quadrangles,
const int32_t *  quadrangle_index,
SbBool  isDataDuplicate = TRUE 
)

Constructor of a 3D surface mesh.

See also PbMesh for more explanations about data duplication.

PbQuadrangleMesh2D::~PbQuadrangleMesh2D (  ) 

Destructor.

Member Function Documentation

virtual const PbCell* PbQuadrangleMesh2D::getCell ( int  cell_index  )  const [virtual]

Gets the cell which index is cell_index.

Returns NULL if the cell does not exist, otherwise returns always a PbQuadrangleCell object. Attention! this method returns always the same adress of an internal private cell. This private cell is updated each time getCell is called.

Reimplemented from PbIndexedMesh2D.

void PbQuadrangleMesh2D::getGeometry ( int &  num_nodes,
const float *&  x_nod,
const float *&  y_nod,
const float *&  z_nod,
int &  num_quadrangles,
const int32_t **&  quadrangle_index 
) const

Gets the current mesh geometry (x, y and z nodes coordinates).

quadrangle_index must be used like a matrix. (i.e. quadrangle_index[cell_index][n], with 0 <= n <= 4)

void PbQuadrangleMesh2D::getGeometry ( int &  num_nodes,
const float *&  x_nod,
const float *&  y_nod,
int &  num_quadrangles,
const int32_t **&  quadrangle_index 
) const

Gets the current mesh geometry (x, y nodes coordinates).

quadrangle_index must be used like a matrix. (i.e. quadrangle_index[cell_index][n], with 0 <= n <= 4)

void PbQuadrangleMesh2D::getGeometry ( int &  num_nodes,
const float *&  x_nod,
const float *&  y_nod,
const float *&  z_nod,
int &  num_quadrangles,
const int32_t *&  quadrangle_index 
) const

Gets the current mesh geometry (x, y and z nodes coordinates).

void PbQuadrangleMesh2D::getGeometry ( int &  num_nodes,
const float *&  x_nod,
const float *&  y_nod,
int &  num_quadrangles,
const int32_t *&  quadrangle_index 
) const

Gets the current mesh geometry (x, y nodes coordinates).

virtual void PbQuadrangleMesh2D::getNodesOwnerCellsInd ( const PbArrayOfInt &  nod_indices,
PbArrayOfInt &  owner_cells 
) const [virtual]

Gets the list of index of cells that own the node "nod_index".

Reimplemented from PbMesh.

PbQuadrangleMesh2D& PbQuadrangleMesh2D::operator= ( const PbQuadrangleMesh2D &  mesh  ) 

Assignment operator.

Reimplemented from PbIndexedMesh2D.

virtual void PbQuadrangleMesh2D::setElemOrientation ( ElemOrientation  elem_orient  )  [virtual]

Changes orientation of cells during visualization of 2D surface mesh.

The ordering of the indices of an cell defines the direction of its normal vector and so its orientation. When the mesh is visualized in 2D, the direction of the normal of an cell is either Z+ or Z-. If any cell of the mesh does not have the same orientation, it can change the representation because the lighting depends on the orientation.

Reimplemented from PbIndexedMesh2D.

void PbQuadrangleMesh2D::setGeometry ( int  num_nodes,
const float *  x_nod,
const float *  y_nod,
const float *  z_nod,
int  num_quadrangles,
const int *  quadrangle_index 
)

Sets a new 3D geometry.

void PbQuadrangleMesh2D::setGeometry ( int  num_nodes,
const float *  x_nod,
const float *  y_nod,
int  num_quadrangles,
const int *  quadrangle_index 
)

Sets a new 2D geometry.

Friends And Related Function Documentation

int operator!= ( const PbQuadrangleMesh2D &  m1,
const PbQuadrangleMesh2D &  m2 
) [friend]

Inequality comparison operator.

Reimplemented from PbIndexedMesh2D.

int operator== ( const PbQuadrangleMesh2D &  m1,
const PbQuadrangleMesh2D &  m2 
) [friend]

Equality comparison operator.

Reimplemented from PbIndexedMesh2D.

The documentation for this class was generated from the following file:
Open Inventor Toolkit reference manual, generated on 4 Sep 2023
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