MeshFunction Class Reference

Represents a function defined on a mesh. More...

#include <solution.h>

Public Member Functions
	MeshFunction ()
virtual	~MeshFunction ()
virtual void	set_quad_2d (Quad2D *quad_2d)
	Selects the quadrature points in which the function will be evaluated.
virtual void	set_active_element (Element *e)
	Called by the assembling procedure and by other functions. In PrecalcShapeset it sets an internal variable that can be later retrieved by get_active_element(). In Solution it selects the element to retrieve solution values for, etc.
Mesh *	get_mesh () const
RefMap *	get_refmap ()
virtual scalar	get_pt_value (double x, double y, int item=H2D_FN_VAL_0)=0
void	force_transform (MeshFunction *mf)
	For internal use only.
void	update_refmap ()
void	force_transform (uint64_t sub_idx, Trf *ctm)
	For internal use only.
Protected Attributes
int	mode
Mesh *	mesh
RefMap *	refmap

Detailed Description

Represents a function defined on a mesh.

MeshFunction is a base class for all classes representing an arbitrary function superimposed on a mesh (ie., domain). These include the Solution, ExactSolution and Filter classes, which define the concrete behavior and the way the function is (pre)calculated. Any such function can later be visualized.

(This is an abstract class and cannot be instantiated.)

Constructor & Destructor Documentation

MeshFunction::MeshFunction ( )

MeshFunction::~MeshFunction ( ) [virtual]

Member Function Documentation

void MeshFunction::force_transform	(	uint64_t	sub_idx,
		Trf *	ctm
	)			`[inline]`

For internal use only.

Reimplemented from Function< TYPE >.

void MeshFunction::force_transform ( MeshFunction * mf ) [inline]

For internal use only.

Mesh* MeshFunction::get_mesh ( ) const [inline]

virtual scalar MeshFunction::get_pt_value	(	double	x,
		double	y,
		int	item = `H2D_FN_VAL_0`
	)			`[pure virtual]`

Implemented in SimpleFilter, DXDYFilter, VonMisesFilter, LinearFilter, and Solution.

RefMap* MeshFunction::get_refmap ( ) [inline]

void MeshFunction::set_active_element ( Element * e ) [virtual]

Called by the assembling procedure and by other functions. In PrecalcShapeset it sets an internal variable that can be later retrieved by get_active_element(). In Solution it selects the element to retrieve solution values for, etc.

Parameters:

e

[in] Element associated with the function being represented by the class.

Reimplemented from Transformable.

Reimplemented in Filter, LinearFilter, and Solution.

void MeshFunction::set_quad_2d ( Quad2D * quad_2d ) [virtual]

Selects the quadrature points in which the function will be evaluated.

It is possible to switch back and forth between different quadrature points: no precalculated values are freed. The standard quadrature is always selected by default already.

Parameters:

quad_2d

[in] The quadrature points.

Reimplemented from Function< TYPE >.

Reimplemented in Filter.

void MeshFunction::update_refmap ( ) [inline]