Abstract interface for 2D spline patches. More...

#include <ASM2D.h>

Inheritance diagram for ASM2D:

[legend]

Public Types
typedef std::vector< unsigned char >	CharVec
	Convenience type.

Public Member Functions
virtual	~ASM2D ()
	Empty destructor.

ASMbase *	clone (const CharVec &nf=CharVec()) const
	Returns a copy of this patch with identical FE discretization. More...

virtual bool	checkRightHandSystem ()
	Checks that the patch is modelled in a right-hand-side system.

virtual bool	uniformRefine (int dir, int nInsert)=0
	Refines the parametrization by inserting extra knots uniformly. More...

virtual bool	raiseOrder (int ru, int rv)=0
	Raises the order of the spline object for this patch. More...

virtual bool	refine (int dir, const std::vector< double > &xi, double scale=1.0)=0
	Refines the parametrization by inserting extra knots. More...

virtual void	constrainEdge (int dir, bool open, int dof, int code=0, char basis=1)=0
	Constrains all DOFs on a given boundary edge. More...

virtual size_t	constrainEdgeLocal (int dir, bool open, int dof, int code=0, bool project=false)=0
	Constrains all DOFs in local directions on a given boundary edge. More...

virtual void	constrainCorner (int I, int J, int dof, int code=0, char basis=1)=0
	Constrains a corner node identified by the two parameter indices. More...

virtual void	constrainNode (double xi, double eta, int dof, int code=0)=0
	Constrains a node identified by two relative parameter values. More...

virtual bool	getGridParameters (std::vector< double > &prm, int dir, int nSegSpan) const =0
	Calculates parameter values for visualization nodal points. More...

virtual int	getCorner (int I, int J, int basis) const =0
	Returns the node index for a given corner.

virtual bool	connectPatch (int edge, ASM2D &neighbor, int nedge, bool revers, int=0, bool coordCheck=true, int thick=1)=0
	Connects all matching nodes on two adjacent boundary edges. More...

Static Public Member Functions
static ASMbase *	create (ASM::Discretization type, unsigned char nd, const CharVec &nf, bool mixedFEM=false)
	Creates a two-parametric patch of specified discretization type. More...

static ASMbase *	create (ASM::Discretization type, unsigned char nf=1)
	Creates a two-parametric patch of specified discretization type. More...

Protected Member Functions
	ASM2D ()
	The constructor is protected to allow objects of sub-classes only.

Static Protected Member Functions
static double	getElementSize (const std::vector< Vec3 > &XC)
	Returns characteristic element size based on corner coordinates.

Detailed Description

Abstract interface for 2D spline patches.

This class contains an interface to methods common for structured and unstructured 2D patches, such that these methods can be invoked without the need to type-cast the patch object to the actual class type.

Member Function Documentation

◆ clone()

ASMbase * ASM2D::clone ( const CharVec & nf = CharVec() ) const

Returns a copy of this patch with identical FE discretization.

Parameters

[in] nf Number of unknown per basis function in the patch

Note: The copied patch shares the FE data structures with the copy, in order to save memory. Thus, the copy cannot be read from file, refined, or changed in other ways that affect the FE geometry and/or topology. The other properties of the patch (boundary conditions, constraints, loads, etc.) are however not copied.

Referenced by SIM2D::clonePatches(), and ASMbase::cloneUnShared().

◆ connectPatch()

virtual bool ASM2D::connectPatch	(	int	edge,
		ASM2D &	neighbor,
		int	nedge,
		bool	revers,
		int	= `0`,
		bool	coordCheck = `true`,
		int	thick = `1`
	)

pure virtual

Connects all matching nodes on two adjacent boundary edges.

Parameters

[in]	edge	Local edge index of this patch, in range [1,4]
	neighbor	The neighbor patch
[in]	nedge	Local edge index of neighbor patch, in range [1,4]
[in]	revers	Indicates whether the two edges have opposite directions
[in]	coordCheck	False to disable coordinate checks (periodic connections)
[in]	thick	Thickness of connection

Implemented in ASMu2D, ASMs2D, ASMu2Dmx, ASMs2DmxLag, and ASMs2Dmx.

Referenced by SIM2D::connectPatches().

◆ constrainCorner()

virtual void ASM2D::constrainCorner	(	int	I,
		int	J,
		int	dof,
		int	code = `0`,
		char	basis = `1`
	)

pure virtual

Constrains a corner node identified by the two parameter indices.

Parameters

[in]	I	Parameter index in u-direction
[in]	J	Parameter index in v-direction
[in]	dof	Which DOFs to constrain at the node
[in]	code	Inhomogeneous dirichlet condition code
[in]	basis	Which basis to constrain edge for

The sign of the two indices is used to define whether we want the node at the beginning or the end of that parameter direction. The magnitude of the indices are not used.

Implemented in ASMu2D, and ASMs2D.

Referenced by SIM2D::addConstraint().

◆ constrainEdge()

virtual void ASM2D::constrainEdge	(	int	dir,
		bool	open,
		int	dof,
		int	code = `0`,
		char	basis = `1`
	)

pure virtual

Constrains all DOFs on a given boundary edge.

Parameters

[in]	dir	Parameter direction defining the edge to constrain
[in]	open	If true, exclude the end points of the edge
[in]	dof	Which DOFs to constrain at each node on the edge
[in]	code	Inhomogeneous dirichlet condition code
[in]	basis	Which basis to constrain edge for

Implemented in ASMs2DC1, ASMu2DC1, ASMu2D, ASMs2DLag, and ASMs2D.

Referenced by SIM2D::addConstraint().

◆ constrainEdgeLocal()

virtual size_t ASM2D::constrainEdgeLocal	(	int	dir,
		bool	open,
		int	dof,
		int	code = `0`,
		bool	project = `false`
	)

pure virtual

Constrains all DOFs in local directions on a given boundary edge.

Parameters

[in]	dir	Parameter direction defining the edge to constrain
[in]	open	If true, exclude the end points of the edge
[in]	dof	Which local DOFs to constrain at each node on the edge
[in]	code	Inhomogeneous dirichlet condition code
[in]	project	If true, the local axis directions are projected

Returns: Number of additional nodes added due to local axis constraints

Implemented in ASMu2D, and ASMs2D.

Referenced by SIM2D::addConstraint().

◆ constrainNode()

virtual void ASM2D::constrainNode	(	double	xi,
		double	eta,
		int	dof,
		int	code = `0`
	)

pure virtual

Constrains a node identified by two relative parameter values.

Parameters

[in]	xi	Parameter in u-direction
[in]	eta	Parameter in v-direction
[in]	dof	Which DOFs to constrain at the node
[in]	code	Inhomogeneous dirichlet condition code

The parameter values have to be in the domain [0.0,1.0], where 0.0 means the beginning of the domain and 1.0 means the end. For values in between, the actual index is taken as the integer value closest to r*n, where r denotes the given relative parameter value, and n is the number of nodes along that parameter direction.

Implemented in ASMs2DC1, ASMu2D, and ASMs2D.

Referenced by SIM2D::parse(), and SIM2D::parseBCTag().

◆ create() [1/2]

ASMbase * ASM2D::create	(	ASM::Discretization	type,
		unsigned char	nd,
		const CharVec &	nf,
		bool	mixedFEM = `false`
	)

static

Creates a two-parametric patch of specified discretization type.

Parameters

[in]	type	The discretization method to use
[in]	nd	Number of spatial dimensions
[in]	nf	Number of unknowns per basis function in the patch
[in]	mixedFEM	If true, force mixed formulation even if nf[1]=0

Referenced by create(), FieldFuncHDF5::load(), SIM2D::parseGeometryTag(), and SIM2D::readPatch().

◆ create() [2/2]

ASMbase * ASM2D::create	(	ASM::Discretization	type,
		unsigned char	nf = `1`
	)

static

Creates a two-parametric patch of specified discretization type.

Parameters

[in]	type	The discretization method to use
[in]	nf	Number of unknowns per basis function in the patch

References create().

◆ getGridParameters()

virtual bool ASM2D::getGridParameters	(	std::vector< double > &	prm,
		int	dir,
		int	nSegSpan
	)		const

pure virtual

Calculates parameter values for visualization nodal points.

Parameters

[out]	prm	Parameter values in given direction for all points
[in]	dir	Parameter direction (0,1)
[in]	nSegSpan	Number of visualization segments over each knot-span

◆ raiseOrder()

virtual bool ASM2D::raiseOrder	(	int	ru,
		int	rv
	)

pure virtual

Raises the order of the spline object for this patch.

Parameters

[in]	ru	Number of times to raise the order in u-direction
[in]	rv	Number of times to raise the order in v-direction

Implemented in ASMu2D, and ASMs2D.

Referenced by SIM2D::parse(), and SIM2D::parseGeometryTag().

◆ refine()

virtual bool ASM2D::refine	(	int	dir,
		const std::vector< double > &	xi,
		double	scale = `1.0`
	)

pure virtual

Refines the parametrization by inserting extra knots.

Parameters

[in]	dir	Parameter direction to refine
[in]	xi	Relative positions of added knots in each existing knot span
[in]	scale	Scaling factor for the added knot values

Referenced by SIM2D::parse(), and SIM2D::parseGeometryTag().

◆ uniformRefine()

virtual bool ASM2D::uniformRefine	(	int	dir,
		int	nInsert
	)

pure virtual

Refines the parametrization by inserting extra knots uniformly.

Parameters

[in]	dir	Parameter direction to refine
[in]	nInsert	Number of extra knots to insert in each knot-span

Implemented in ASMu2D, and ASMs2D.

Referenced by SIM2D::parse(), and SIM2D::parseGeometryTag().

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

src/ASM/ASM2D.h
src/ASM/ASM2D.C

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Detailed Description

Member Function Documentation

◆ clone()

◆ connectPatch()

◆ constrainCorner()

◆ constrainEdge()

◆ constrainEdgeLocal()

◆ constrainNode()

◆ create() [1/2]

◆ create() [2/2]

◆ getGridParameters()

◆ raiseOrder()

◆ refine()

◆ uniformRefine()