Defines a surface mesh of triangles. More...

#include <MeshViz/3Ddata/PbTriangleMesh2D.h>

Inheritance diagram for PbTriangleMesh2D:

Public Member Functions
	PbTriangleMesh2D (SbBool isDataDuplicate=TRUE)
	Constructor of a default simple mesh.

	PbTriangleMesh2D (const PbTriangleMesh2D &mesh)
	Copy constructor.

	PbTriangleMesh2D (int num_nodes, const float x_nod, const float y_nod, int num_triangles, const int32_t *triangle_index, SbBool is_data_duplicate=TRUE)
	Constructor of a 2D surface mesh.

	PbTriangleMesh2D (int num_nodes, const float x_nod, const float y_nod, const float z_nod, int num_triangles, const int32_t triangle_index, SbBool is_data_duplicate=TRUE)
	Constructor of a 3D surface mesh.

	~PbTriangleMesh2D ()
	Destructor.

PbTriangleMesh2D &	operator= (const PbTriangleMesh2D &mesh)
	Assignment operator.

void	setGeometry (int num_nodes, const float x_nod, const float y_nod, int num_triangles, const int *triangle_index)
	Sets a new 2D geometry.

void	setGeometry (int numPoints, const float xPointsField, const float yPointsField)
	Set a new 2D geometry from a points field.

void	setGeometry (int num_nodes, const float x_nod, const float y_nod, const float z_nod, int num_triangles, const int triangle_index)
	Sets a new 3D geometry.

void	getGeometry (int &num_nodes, const float &x_nod, const float &y_nod, int &num_triangles, const int32_t *&triangle_index) const
	Gets the current mesh geometry (x, y nodes coordinates).

void	getGeometry (int &num_nodes, const float &x_nod, const float &y_nod, const float &z_nod, int &num_triangles, const int32_t &triangle_index) const
	Gets the current mesh geometry (x, y and z nodes coordinates).

void	getGeometry (int &num_nodes, const float &x_nod, const float &y_nod, int &num_triangles, const int32_t **&triangle_index) const
	Gets the current mesh geometry (x, y nodes coordinates).

void	getGeometry (int &num_nodes, const float &x_nod, const float &y_nod, const float &z_nod, int &num_triangles, const int32_t *&triangle_index) const
	Gets the current mesh geometry (x, y and z nodes coordinates).

virtual void	getNodesOwnerCellsInd (const PbArrayOfInt &nod_indices, 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.

void	setElemOrientation (ElemOrientation elem_orient)
	Changes orientation of cells during visualization of 2D surface mesh.

Public Member Functions inherited from PbIndexedMesh2D
	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".

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	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 PbTriangleMesh2D &m1, const PbTriangleMesh2D &m2)
	Equality comparison operator.

int	operator!= (const PbTriangleMesh2D &m1, const PbTriangleMesh2D &m2)
	Inequality comparison operator.

Additional Inherited Members
Public Types inherited from PbIndexedMesh2D
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...

Detailed Description

Defines a surface mesh of triangles.

Class to define an indexed 2D mesh made up of triangles cells. This mesh is defined by a list of triangles. Each triangles is defined by 3 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 triangles are defined by the array triangle_index of num_triangles*3 integers. triangle_index[(n*3)+p] is the p-th node index of the n-th triangle of the mesh (0 <= p <= 3).

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

The geometry of this mesh can be defined also from a points field. In this case the Voronoi method is used to build the triangle 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 58 of file PbTriangleMesh2D.h.

Constructor & Destructor Documentation

◆ PbTriangleMesh2D() [1/4]

PbTriangleMesh2D::PbTriangleMesh2D ( SbBool isDataDuplicate = TRUE )

Constructor of a default simple mesh.

See also PbMesh for more explanations about data duplication.

◆ PbTriangleMesh2D() [2/4]

PbTriangleMesh2D::PbTriangleMesh2D ( const PbTriangleMesh2D & mesh )

Copy constructor.

◆ PbTriangleMesh2D() [3/4]

PbTriangleMesh2D::PbTriangleMesh2D	(	int	num_nodes,
		const float *	x_nod,
		const float *	y_nod,
		int	num_triangles,
		const int32_t *	triangle_index,
		SbBool	is_data_duplicate = `TRUE`
	)

Constructor of a 2D surface mesh.

See also PbMesh for more explanations about data duplication.

◆ PbTriangleMesh2D() [4/4]

PbTriangleMesh2D::PbTriangleMesh2D	(	int	num_nodes,
		const float *	x_nod,
		const float *	y_nod,
		const float *	z_nod,
		int	num_triangles,
		const int32_t *	triangle_index,
		SbBool	is_data_duplicate = `TRUE`
	)

Constructor of a 3D surface mesh.

See also PbMesh for more explanations about data duplication.

◆ ~PbTriangleMesh2D()

PbTriangleMesh2D::~PbTriangleMesh2D ( )

Destructor.

Member Function Documentation

◆ getCell()

virtual const PbCell * PbTriangleMesh2D::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 PbTriangleCell 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.

◆ getGeometry() [1/4]

void PbTriangleMesh2D::getGeometry	(	int &	num_nodes,
		const float *&	x_nod,
		const float *&	y_nod,
		const float *&	z_nod,
		int &	num_triangles,
		const int32_t *&	triangle_index
	)		const

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

◆ getGeometry() [2/4]

void PbTriangleMesh2D::getGeometry	(	int &	num_nodes,
		const float *&	x_nod,
		const float *&	y_nod,
		const float *&	z_nod,
		int &	num_triangles,
		const int32_t **&	triangle_index
	)		const

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

triangle_index must be used like a matrix. (i.e. triangle_index[cell_index][n], with 0 <= n < 3)

◆ getGeometry() [3/4]

void PbTriangleMesh2D::getGeometry	(	int &	num_nodes,
		const float *&	x_nod,
		const float *&	y_nod,
		int &	num_triangles,
		const int32_t *&	triangle_index
	)		const

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

◆ getGeometry() [4/4]

void PbTriangleMesh2D::getGeometry	(	int &	num_nodes,
		const float *&	x_nod,
		const float *&	y_nod,
		int &	num_triangles,
		const int32_t **&	triangle_index
	)		const

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

triangle_index must be used like a matrix. (i.e. triangle_index[cell_index][n], with 0 <= n < 3)

◆ getNodesOwnerCellsInd()

virtual void PbTriangleMesh2D::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.

◆ operator=()

PbTriangleMesh2D & PbTriangleMesh2D::operator= ( const PbTriangleMesh2D & mesh )

Assignment operator.

◆ setElemOrientation()

void PbTriangleMesh2D::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.

◆ setGeometry() [1/3]

void PbTriangleMesh2D::setGeometry	(	int	num_nodes,
		const float *	x_nod,
		const float *	y_nod,
		const float *	z_nod,
		int	num_triangles,
		const int *	triangle_index
	)

Sets a new 3D geometry.

◆ setGeometry() [2/3]

void PbTriangleMesh2D::setGeometry	(	int	num_nodes,
		const float *	x_nod,
		const float *	y_nod,
		int	num_triangles,
		const int *	triangle_index
	)

Sets a new 2D geometry.

◆ setGeometry() [3/3]

void PbTriangleMesh2D::setGeometry	(	int	numPoints,
		const float *	xPointsField,
		const float *	yPointsField
	)

Set a new 2D geometry from a points field.

The triangulation is realized by the DELAUNAY method.

Friends And Related Symbol Documentation

◆ operator!=

int operator!=	(	const PbTriangleMesh2D &	m1,
		const PbTriangleMesh2D &	m2
	)

friend

Inequality comparison operator.

Definition at line 107 of file PbTriangleMesh2D.h.

◆ operator==

int operator==	(	const PbTriangleMesh2D &	m1,
		const PbTriangleMesh2D &	m2
	)

friend

Equality comparison operator.

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

MeshViz/3Ddata/PbTriangleMesh2D.h

Open Inventor Release 2023.2.3

Public Member Functions

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ PbTriangleMesh2D() [1/4]

◆ PbTriangleMesh2D() [2/4]

◆ PbTriangleMesh2D() [3/4]

◆ PbTriangleMesh2D() [4/4]

◆ ~PbTriangleMesh2D()

Member Function Documentation

◆ getCell()

◆ getGeometry() [1/4]

◆ getGeometry() [2/4]

◆ getGeometry() [3/4]

◆ getGeometry() [4/4]

◆ getNodesOwnerCellsInd()

◆ operator=()

◆ setElemOrientation()

◆ setGeometry() [1/3]

◆ setGeometry() [2/3]

◆ setGeometry() [3/3]

Friends And Related Symbol Documentation

◆ operator!=

◆ operator==