Class for storage of a standard FE grid block. More...

#include <ElementBlock.h>

Inheritance diagram for ElementBlock:

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Collaboration diagram for ElementBlock:

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Public Member Functions
	ElementBlock (size_t nenod=8)
	The constructor defines the number of nodes per element nenod.

virtual	~ElementBlock ()=default
	Empty destructor.

void	resize (size_t nI, size_t nJ=1, size_t nK=1)
	Reallocates the internal arrays to fit a structured grid. More...

void	unStructResize (size_t nEl, size_t nPts, size_t nMNPC=0)
	Reallocates the internal arrays to fit an unstructured grid. More...

bool	setCoor (size_t i, size_t j, Real x)
	Defines the j'th coordinate of node i.

bool	setCoor (size_t i, const Vec3 &X)
	Defines the coordinates of node i.

bool	setCoor (size_t i, Real x, Real y, Real z)
	Defines the coordinates of node i.

bool	setParams (size_t i, Real u, Real v, Real w=Real(0))
	Defines the parameter values for node i.

bool	setNode (size_t i, int nodeNumb)
	Defines the global number of element node i.

bool	endOfElm (size_t &i)
	Marks the end of current element for unstructured grids.

bool	addLine (Real x1, Real y1, Real z1, Real x2, Real y2, Real z2)
	Adds a line element to the grid, assuming nen is equal to two.

size_t	addLine (size_t i1, const Vec3 &X2, int elmId=-1)
	Adds a line element to the grid, assuming nen is equal to two. More...

void	setElmId (size_t i, int iel)
	Assigns an external ID to an element.

int	getElmId (size_t i) const
	Returns the external ID of an element.

size_t	getElmIndex (size_t i) const
	Returns the internal index of an element in case of mixed types.

size_t	getNoNodes () const
	Returns the total number of nodes in the block.

size_t	getNoElms () const
	Returns the total number of elements in the block.

size_t	getNoElmNodes () const
	Returns the number of nodes per element.

void	setNoElmNodes (size_t nenod)
	Sets the number of nodes per element.

void	merge (const ElementBlock *other, std::vector< int > &nodeNums, bool uniqNodes=true)
	Merges another element block into this one.

void	merge (const ElementBlock &other, bool uniqNodes=true)
	Merges another element block into this one.

void	transform (const Matrix &Tlg)
	Applies a transformation matrix from local to global system.

std::vector< Vec3 >::const_iterator	begin_XYZ () const
	Returns the beginning of the coordinate array.

std::vector< Vec3 >::const_iterator	end_XYZ () const
	Returns the end of the coordinate array.

const Vec3 &	getCoord (size_t i) const
	Returns the coordinate of a given node.

const Real *	getParam (size_t i) const
	Returns a pointer to the parameter values of a given node.

const int *	getElements () const
	Returns a pointer to the element connectivity array.

bool	getElements (std::vector< int > &mnpc, size_t nenod) const
	Get element connectivity array for elements with nenod nodes.

utl::Point	getCenter (size_t i) const
	Returns the coordinates of the center of the given element.

void	removeElement (int iel)
	Removes all elements with the specified external ID.

Static Public Attributes
static double	eps = 0.0
	Element shrinkage factor.

Protected Types
using	Prm3 = std::array< Real, 3 >
	Convenience type.

Protected Attributes
std::vector< Vec3 >	coord
	Vector of nodal coordinates.

std::vector< Prm3 >	param
	Vector of parameter values of the nodal points.

std::vector< int >	MMNPC
	Matrix of Matrices of Nodal Point Correspondance.

std::vector< int >	MINEX
	Matrix of Internal to External element numbers.

size_t	nen
	Number of Element Nodes.

Private Attributes
std::vector< size_t >	elmIdx
	Internal element order in case of mixed types.

Detailed Description

Class for storage of a standard FE grid block.

Member Function Documentation

◆ addLine()

size_t ElementBlock::addLine	(	size_t	i1,
		const Vec3 &	X2,
		int	elmId = `-1`
	)

Adds a line element to the grid, assuming nen is equal to two.

Parameters

[in]	i1	Index of existing node to use as start point
[in]	X2	Coordinates of new node to use as end point
[in]	elmId	External element ID (generate if negative)

References coord, MINEX, MMNPC, and nen.

◆ resize()

void ElementBlock::resize	(	size_t	nI,
		size_t	nJ = `1`,
		size_t	nK = `1`
	)

Reallocates the internal arrays to fit a structured grid.

Parameters

[in]	nI	Number of nodes in I-direction
[in]	nJ	Number of nodes in J-direction
[in]	nK	Number of nodes in K-direction

References coord, MINEX, MMNPC, nen, and param.

Referenced by CubeBlock::CubeBlock(), PlaneBlock::PlaneBlock(), ASMs1DLag::tesselate(), ASMs2DTri::tesselate(), ASMs1D::tesselate(), ASMs2D::tesselate(), and ASMs3D::tesselate().

◆ unStructResize()

void ElementBlock::unStructResize	(	size_t	nEl,
		size_t	nPts,
		size_t	nMNPC = `0`
	)

Reallocates the internal arrays to fit an unstructured grid.

Parameters

[in]	nEl	Number of elements
[in]	nPts	Number of nodes
[in]	nMNPC	Total size of element connectivity array

References coord, MINEX, MMNPC, nen, and param.

Referenced by CylinderBlock::CylinderBlock(), SphereBlock::SphereBlock(), Hole2D::tesselate(), Oval2D::tesselate(), ASMsupel::tesselate(), ASMu1DLag::tesselate(), ASMu2DLag::tesselate(), ASMu2D::tesselate(), and ASMu3D::tesselate().

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

src/Utility/ElementBlock.h
src/Utility/ElementBlock.C

Public Member Functions

Static Public Attributes

Protected Types

Protected Attributes

Private Attributes

Detailed Description

Member Function Documentation

◆ addLine()

◆ resize()

◆ unStructResize()