PbIndexedMesh3D Class Reference
[Property/Data]

MeshViz Defines a volume mesh of polyhedrons. More...

#include <MeshViz/3Ddata/PbIndexedMesh3D.h>

Inheritance diagram for PbIndexedMesh3D:
PbMesh3D PbMesh PbBase PbHexahedronMesh3D PbTetrahedronMesh3D

List of all members.

Public Member Functions

 PbIndexedMesh3D (SbBool is_data_duplicate=TRUE)
 PbIndexedMesh3D (const PbIndexedMesh3D &mesh)
 PbIndexedMesh3D (int num_nodes, const float *x_nod, const float *y_nod, const float *z_nod, int num_cells, const int *cell_index, const int *cell_type, SbBool is_data_duplicate=TRUE)
 ~PbIndexedMesh3D ()
PbIndexedMesh3Doperator= (const PbIndexedMesh3D &mesh)
void setGeometry (int num_nodes, const float *x_nod, const float *y_nod, const float *z_nod, int num_cells, const int *cell_index, const int *cell_type)
void setCoordinates (const float *x_nod, const float *y_nod, const float *z_nod)
void getCoordinates (const float *&xnod, const float *&ynod, const float *&znod, int &size_xnod, int &size_ynod, int &size_znod) const
void getGeometry (int &num_nodes, const float *&x_nod, const float *&y_nod, const float *&z_nod, int &num_cells, const int *&cell_index, const int *&cell_type) const
void getNodes (int &num_nodes, const float *&x_nod, const float *&y_nod, const float *&z_nod) const
virtual SbVec3f getNodeCoord (int nod_index) const
virtual void getNodeOwnerCellsInd (int nod_index, PbArrayOfInt &owner_cells) const
virtual const PbCellgetCell (int cell_index) const

Friends

int operator== (const PbIndexedMesh3D &m1, const PbIndexedMesh3D &m2)
int operator!= (const PbIndexedMesh3D &m1, const PbIndexedMesh3D &m2)

Detailed Description

MeshViz Defines a volume mesh of polyhedrons.

Class to define an indexed 3D mesh. Each cell of this type of mesh is a polyhedron with 4, 5, 6 or 8 nodes. Each polyhedron is defined by a list of node indices.

The nodes coordinates are defined by 3 arrays x_nod, y_nod, z_nod of num_nodes floats. The cells are defined by the array cell_type (size num_cells) and cell_index. cell_type[n] defines the number of nodes in the n-th cells: if cell_type[i] = 4, the i-th cell is a tetrahedron, if cell_type[i] = 5 it is a pyramid, if cell_type[i] = 6 it is a prism, and if cell_type[i] = 8 it is an hexahedron. cell_index is an array of S integers, where S = cell_type[0] + cell_type[1] + ... + cell_type[num_nodes - 1]. cell_index contains the num_cells lists of node indices which define each cell topology.

Each facet of a cell may have 2 references in the mesh, that is, one facet is common to 2 cells. The facets which are referred to once in the mesh define the mesh skin.

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

PbIndexedMesh3D::PbIndexedMesh3D ( SbBool  is_data_duplicate = TRUE  ) 

Constructor of a default simple mesh.

See also PbMesh for more explanations about data duplication.

PbIndexedMesh3D::PbIndexedMesh3D ( const PbIndexedMesh3D mesh  ) 

Copy constructor.

PbIndexedMesh3D::PbIndexedMesh3D ( int  num_nodes,
const float *  x_nod,
const float *  y_nod,
const float *  z_nod,
int  num_cells,
const int *  cell_index,
const int *  cell_type,
SbBool  is_data_duplicate = TRUE 
)

Constructor of a 3D volume mesh.

See also PbMesh for more explanations about data duplication.

PbIndexedMesh3D::~PbIndexedMesh3D (  ) 

Destructor.


Member Function Documentation

virtual const PbCell* PbIndexedMesh3D::getCell ( int  cell_index  )  const [virtual]

Gets the cell which index is cell_index.

Returns NULL if the cell does not exist or if it is incorrect (ie flat tetrahedron). Attention! this method returns always the same adress of an internal private cell. This private cell is updated each time getCell is called.

Implements PbMesh.

Reimplemented in PbHexahedronMesh3D, and PbTetrahedronMesh3D.

void PbIndexedMesh3D::getCoordinates ( const float *&  xnod,
const float *&  ynod,
const float *&  znod,
int &  size_xnod,
int &  size_ynod,
int &  size_znod 
) const [inline, virtual]

Get the current coordinates of the nodes of this mesh.

Parameters:
xnod array of x coord
ynod array of y coord
znod array of z coord
size_xnod size of the array xnod
size_ynod size of the array ynod
size_znod size of the array znod

Reimplemented from PbMesh.

void PbIndexedMesh3D::getGeometry ( int &  num_nodes,
const float *&  x_nod,
const float *&  y_nod,
const float *&  z_nod,
int &  num_cells,
const int *&  cell_index,
const int *&  cell_type 
) const

Gets the current mesh geometry.

virtual SbVec3f PbIndexedMesh3D::getNodeCoord ( int  nod_index  )  const [inline, virtual]

Gets the coordinates of a node.

Implements PbMesh.

virtual void PbIndexedMesh3D::getNodeOwnerCellsInd ( int  nod_index,
PbArrayOfInt owner_cells 
) const [virtual]

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

Implements PbMesh.

void PbIndexedMesh3D::getNodes ( int &  num_nodes,
const float *&  x_nod,
const float *&  y_nod,
const float *&  z_nod 
) const

Gets the mesh nodes coordinate arrays.

PbIndexedMesh3D& PbIndexedMesh3D::operator= ( const PbIndexedMesh3D mesh  ) 

Assignment operator.

Reimplemented from PbMesh3D.

Reimplemented in PbHexahedronMesh3D, and PbTetrahedronMesh3D.

void PbIndexedMesh3D::setCoordinates ( const float *  x_nod,
const float *  y_nod,
const float *  z_nod 
) [virtual]

Set new node coordinates without modifying the mesh topology.

For performance reasons, this method should be called instead of setGeometry when doing a mesh deformation animation. It allows to update the coordinates of a existing level surface, skin, cross section etc, without rebuilding them totally.

Reimplemented from PbMesh.

void PbIndexedMesh3D::setGeometry ( int  num_nodes,
const float *  x_nod,
const float *  y_nod,
const float *  z_nod,
int  num_cells,
const int *  cell_index,
const int *  cell_type 
)

Sets a new geometry.


Friends And Related Function Documentation

int operator!= ( const PbIndexedMesh3D m1,
const PbIndexedMesh3D m2 
) [friend]

Inequality comparison operator.

Reimplemented in PbHexahedronMesh3D, and PbTetrahedronMesh3D.

int operator== ( const PbIndexedMesh3D m1,
const PbIndexedMesh3D m2 
) [friend]

Equality comparison operator.

Reimplemented in PbHexahedronMesh3D, and PbTetrahedronMesh3D.


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

Open Inventor Toolkit reference manual, generated on 8 Apr 2021
Copyright © Thermo Fisher Scientific All rights reserved.
http://www.openinventor.com/