PbIndexedMesh2D Class Reference

Defines a surface mesh of polygons. More...

#include <MeshViz/3Ddata/PbIndexedMesh2D.h>

Inheritance diagram for PbIndexedMesh2D:

Public Types
enum	ElemOrientation {   ORIENTATION_AS_IS ,   ORIENTATION_ZPOS ,   ORIENTATION_ZNEG }
	Cell orientation for visualization of 2D surface mesh. More...
Public Types inherited from PbMesh2D
enum	ExtrapolationMethod {   USE_ADJACENT_DERIVS ,   USE_ADJACENT_VALUES }
	Specifies the type of extrapolation used by getFaultMesh() when computing values on the fault lines. More...
Public Types inherited from PbMesh
enum	DataBinding {   PER_CELL = PoMeshProperty::PER_CELL ,   PER_NODE = PoMeshProperty::PER_NODE }
	Data binding. More...

Public Member Functions
	PbIndexedMesh2D (SbBool is_data_duplicate=TRUE)
	Constructor of a default simple mesh.
	PbIndexedMesh2D (const PbIndexedMesh2D &mesh)
	Copy constructor.
	PbIndexedMesh2D (int num_nodes, const float *x_nod, const float *y_nod, int num_cells, const int *cell_index, const int *cell_type, SbBool is_data_duplicate=TRUE)
	Constructor of a 2D surface mesh.
	PbIndexedMesh2D (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 surface mesh.
	~PbIndexedMesh2D ()
	Destructor.
PbIndexedMesh2D &	operator= (const PbIndexedMesh2D &mesh)
	Assignment operator.
void	setGeometry (int num_nodes, const float *x_nod, const float *y_nod, int num_cells, const int *cell_index, const int *cell_type)
	Sets a new 2D geometry.
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)
	Sets a new 3D geometry.
void	getGeometry (int &numNode, const float *&x_nod, const float *&y_nod, const float *&z_nod, int &num_cells, const int32_t *&cell_index, const int32_t *&cell_type) const
	Gets the current mesh geometry (x, y and z nodes coordinates).
void	getGeometry (int &numNode, const float *&x_nod, const float *&y_nod, int &num_cells, const int32_t *&cell_index, const int32_t *&cell_type) const
	Gets the current mesh geometry (x, y nodes coordinates).
void	getNodes (int &num_nodes, const float *&x_nod, const float *&y_nod, const float *&z_nod) const
	Gets the mesh nodes coordinates (x,y,z coordinates)
void	getNodes (int &num_nodes, const float *&x_nod, const float *&y_nod) const
	Gets the mesh nodes coordinates (only x,y coordinates)
virtual SbVec3f	getNodeCoord (int nod_index) const
	Gets the coordinates of a node.
virtual void	getNodeOwnerCellsInd (int nod_index, PbArrayOfInt &owner_cells) const
	Gets the list of index of cells that own the node "nod_index".
virtual const PbCell *	getCell (int cell_index) const
	Gets the cell which index is cell_index.
virtual void	setElemOrientation (ElemOrientation cell_orient)
	Changes orientation of cells during visualization of 2D surface mesh.
Public Member Functions inherited from PbMesh2D
void	addVecsSet (int set_index, const SbVec2f *val, const SbString &setName="")
	Adds a set of 2D vectors on the mesh.
virtual SbBox2f	getBoundingBox () const
	Gets the 2D mesh's bounding box.
virtual float	getVolume () const
	Always returns 0.
virtual float	getArea () const
	Gets the area of the mesh.
PbMesh2D *	getFaultMesh (int num_fault_lines, const int *fault_line_sizes, const SbVec3f *coord, ExtrapolationMethod extrapol_method, PbDefinedValue &definedValue) const
	Builds a new mesh by inserting some fault lines in this mesh.
PbMesh2D *	getFaultMesh (int num_fault_lines, const int *fault_line_sizes, const SbVec3f *coord) const
	Same as calling getFaultMesh(num_fault_lines, fault_line_sizes, coord,PbMesh2D::USE_ADJACENT_DERIVS, PbDefinedValue())
Public Member Functions inherited from PbMesh
	PbMesh (SbBool is_data_duplicated=TRUE)
	Constructor.
	PbMesh (const PbMesh &mesh)
	Copy constructor.
	~PbMesh ()
	Destructor.
PbMesh &	operator= (const PbMesh &mesh)
	Assignment operator.
int	getNumNodes () const
	Gets the number of nodes in the mesh.
int	getNumCells () const
	Gets the number of cells in the mesh.
SbBox3f	getBoundingBox () const
	Gets the bounding box of the mesh.
SbBool	isDataDuplicated () const
	Returns TRUE if mesh's data are duplicated, FALSE otherwise.
virtual void	addValuesSet (int set_index, const float *val, const SbString &set_name="")
	Adds a set of scalar values.
void	addValuesSet (int set_index, const float *val, DataBinding binding, const SbString &set_name="")
	Adds a set of scalar values that can be located either at nodes or at cells.
DataBinding	getValuesBinding (int set_index) const
	Gets the binding of the scalar value set.
virtual void	addStringsSet (int set_index, const SbString *val, const SbString &set_name="")
	Adds a set of string values .
virtual const SbString *	getValuesSetName (int set_index) const
	Gets the name associated to a scalar values set.
virtual const SbString *	getStringsSetName (int set_index) const
	Gets the name associated to a string values set.
virtual const SbString *	getVecsSetName (int set_index) const
	Gets the name associated to a vec values set.
virtual const float *	getValuesSet (int set_index) const
	Gets a set of scalar values.
virtual const SbString *	getStringsSet (int set_index) const
	Gets a set of string values.
virtual const SbVec3f *	getVecsSet (int set_index) const
	Gets a set of vector values.
virtual SbBool	removeValuesSet (int set_index)
	Remove a set of scalar values.
virtual SbBool	removeStringsSet (int set_index)
	Remove a set of string values.
virtual SbBool	removeVecsSet (int set_index)
	Remove a set of vector values.
virtual void	removeAllValuesSet ()
	Remove all sets of scalar values.
virtual void	removeAllStringsSet ()
	Remove all sets of strings values.
virtual void	removeAllVecsSet ()
	Remove all sets of vector values.
virtual int	getNumValuesSet () const
	Gets the number of set of scalar values.
virtual int	getNumStringsSet () const
	Gets the number of set of string values.
virtual int	getNumVecsSet () const
	Gets the number of set of vector values.
virtual SbBool	getMinValuesSet (int set_index, float &min) const
	Gets the min of a set of scalars.
virtual SbBool	getMinVecsSet (int set_index, float &min) const
	Gets the min module of a set of vectors.
virtual SbBool	getMaxValuesSet (int set_index, float &max) const
	Gets the max of a set of scalars.
virtual SbBool	getMaxVecsSet (int set_index, float &max) const
	Gets the max module of a set of vectors.
virtual void	getNodesOwnerCellsInd (const PbArrayOfInt &nod_indices, PbArrayOfInt &owner_cells) const
	Gets the list of indices of cells that own the list of nodes "nod_indices".
virtual void	getAdjacentCellsIndByNode (int cell_index, PbArrayOfInt &adjacent_cells) const
	Gets the list of indices of cells that are adjacent (by a node) to cell_index.
virtual void	getAdjacentCellsIndByFacet (int cell_index, PbArrayOfInt &adjacent_cells) const
	Gets the list of indices of cells that are adjacent (by a facet) to cell_index.
virtual SbBox3f	getSmallestCellBox (int &cell_index) const
	Gets the smallest cell's bounding box, returns also the index of this cell.
virtual SbBox3f	getBiggestCellBox (int &cell_index) const
	Gets the biggest cell's bounding box, returns also the index of this cell.
virtual const PbCell *	findContainingCell (const SbVec3f &point, float tolerance, SbVec3f &pcoord, const PbCell *adjacent_cell) const
virtual const PbCell *	findContainingCell (const SbVec3f &point, float tolerance, SbVec3f &pcoord) const
	Find the cell that contains the point.
virtual void	setCoordinates (const float *x_nod, const float *y_nod, const float *z_nod)
	Set new node coordinates without modifying the mesh topology.
virtual void	getCoordinates (const float *&xnod, const float *&ynod, const float *&znod, int &size_xnod, int &size_ynod, int &size_znod) const
	Get the current coordinates of the nodes of this mesh.
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.

Friends
int	operator== (const PbIndexedMesh2D &m1, const PbIndexedMesh2D &m2)
	Equality comparison operator.
int	operator!= (const PbIndexedMesh2D &m1, const PbIndexedMesh2D &m2)
	Inequality comparison operator.

Detailed Description

Defines a surface mesh of polygons.

Class to define an indexed 2D mesh. Each cell of this type of mesh is a polygon with any number of nodes. Each polygon cell is defined by a list of indices in an array of nodes.

The nodes coordinates are defined by 2 (or 3) arrays x_nod, y_nod (and 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] = 3, the i-th cell is a triangle, if cell_type[i] = 4, it is a quadrangle... 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 edge of a cell may have 2 references in the mesh, that is, one edge is common to 2 cells. 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.

Definition at line 64 of file PbIndexedMesh2D.h.

Member Enumeration Documentation

ElemOrientation

enum PbIndexedMesh2D::ElemOrientation

Cell orientation for visualization of 2D surface mesh.

Enumerator
ORIENTATION_AS_IS	The cell orientation is kept.
ORIENTATION_ZPOS	Cell is oriented with a normal = (0,0,1)
ORIENTATION_ZNEG	Cell is oriented with a normal = (0,0,-1)

Definition at line 180 of file PbIndexedMesh2D.h.

Constructor & Destructor Documentation

PbIndexedMesh2D() [1/4]

PbIndexedMesh2D::PbIndexedMesh2D

(

SbBool

is_data_duplicate = TRUE

)

Constructor of a default simple mesh.

See also PbMesh for more explanations about data duplication.

PbIndexedMesh2D() [2/4]

PbIndexedMesh2D::PbIndexedMesh2D

(

const PbIndexedMesh2D &

mesh

)

Copy constructor.

PbIndexedMesh2D() [3/4]

PbIndexedMesh2D::PbIndexedMesh2D	(	int	num_nodes,
		const float *	x_nod,
		const float *	y_nod,
		int	num_cells,
		const int *	cell_index,
		const int *	cell_type,
		SbBool	is_data_duplicate = TRUE
	)

Constructor of a 2D surface mesh.

See also PbMesh for more explanations about data duplication.

PbIndexedMesh2D() [4/4]

PbIndexedMesh2D::PbIndexedMesh2D	(	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 surface mesh.

See also PbMesh for more explanations about data duplication.

~PbIndexedMesh2D()

PbIndexedMesh2D::~PbIndexedMesh2D

(

)

Destructor.

Member Function Documentation

getCell()

virtual const PbCell * PbIndexedMesh2D::getCell ( int  cell_index ) const

virtual

Gets the cell which index is cell_index.

Returns NULL if the cell does not exist. 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 PbQuadrangleMesh2D, and PbTriangleMesh2D.

getGeometry() [1/2]

void PbIndexedMesh2D::getGeometry	(	int &	numNode,
		const float *&	x_nod,
		const float *&	y_nod,
		const float *&	z_nod,
		int &	num_cells,
		const int32_t *&	cell_index,
		const int32_t *&	cell_type
	)		const

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

getGeometry() [2/2]

void PbIndexedMesh2D::getGeometry	(	int &	numNode,
		const float *&	x_nod,
		const float *&	y_nod,
		int &	num_cells,
		const int32_t *&	cell_index,
		const int32_t *&	cell_type
	)		const

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

getNodeCoord()

virtual SbVec3f PbIndexedMesh2D::getNodeCoord ( int  nod_index ) const

virtual

Gets the coordinates of a node.

Implements PbMesh.

getNodeOwnerCellsInd()

virtual void PbIndexedMesh2D::getNodeOwnerCellsInd ( int  nod_index, PbArrayOfInt &  owner_cells  ) const

virtual

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

Implements PbMesh.

getNodes() [1/2]

void PbIndexedMesh2D::getNodes	(	int &	num_nodes,
		const float *&	x_nod,
		const float *&	y_nod
	)		const

Gets the mesh nodes coordinates (only x,y coordinates)

getNodes() [2/2]

void PbIndexedMesh2D::getNodes	(	int &	num_nodes,
		const float *&	x_nod,
		const float *&	y_nod,
		const float *&	z_nod
	)		const

Gets the mesh nodes coordinates (x,y,z coordinates)

operator=()

PbIndexedMesh2D & PbIndexedMesh2D::operator=

(

const PbIndexedMesh2D &

mesh

)

Assignment operator.

setElemOrientation()

virtual void PbIndexedMesh2D::setElemOrientation ( ElemOrientation  cell_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 in PbQuadrangleMesh2D, and PbTriangleMesh2D.

setGeometry() [1/2]

void PbIndexedMesh2D::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 3D geometry.

setGeometry() [2/2]

void PbIndexedMesh2D::setGeometry	(	int	num_nodes,
		const float *	x_nod,
		const float *	y_nod,
		int	num_cells,
		const int *	cell_index,
		const int *	cell_type
	)

Sets a new 2D geometry.

Friends And Related Symbol Documentation

operator!=

int operator!= ( const PbIndexedMesh2D &  m1, const PbIndexedMesh2D &  m2  )

friend

Inequality comparison operator.

Definition at line 115 of file PbIndexedMesh2D.h.

operator==

int operator== ( const PbIndexedMesh2D &  m1, const PbIndexedMesh2D &  m2  )

friend

Equality comparison operator.

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

• MeshViz/3Ddata/PbIndexedMesh2D.h