Draws a picture of data in Matlab format and stores the result in a single file. More...

#include <matlab.hh>

Inheritance diagram for graphics::MatlabGraphics:

Collaboration diagram for graphics::MatlabGraphics:

Public Member Functions
template<class G >
	MatlabGraphics (const concepts::Space< G > &spc, const std::string filename, const uint dim=2)
	Constructor for output of mesh only.
	MatlabGraphics (concepts::Mesh &msh, const std::string filename, const uint dim=2, const uint points=noPoints)
	Constructor for output of mesh only.
template<class F , class G >
	MatlabGraphics (const concepts::Space< G > &spc, const std::string filename, const concepts::ElementFormula< F, G > &frm, const uint dim=2)
	Constructor for output of a element formula.
template<class F >
	MatlabGraphics (concepts::Mesh &msh, const std::string filename, const concepts::PiecewiseFormulaBase< F > &frm, const uint dim=2, const uint points=noPoints)
	Constructor for output of a scalar formula.
template<class F , class G >
	MatlabGraphics (const concepts::Space< G > &spc, const std::string filename, const concepts::Vector< F > &sol, const uint dim=2, const concepts::ElementFunction< F, G > *fun=0)
	Constructor for output of solutions and functions of it.
template<class F , class G >
void	operator() (const concepts::Space< G > &spc, const concepts::Formula< F > &frm)
	Application operator for output of a scalar formula.
template<class F , class G >
void	operator() (concepts::Mesh &msh, const concepts::Formula< F > &frm, const uint points=5)
	Application operator for output of a scalar formula.
template<class F , class G >
void	operator() (const concepts::Space< G > &spc, const concepts::Vector< F > &sol, const concepts::ElementFunction< F, G > *fun=0)
	Application operator for output of solutions and functions of it.
virtual	~MatlabGraphics ()
Static Public Attributes
static uint	noPoints
Protected Member Functions
virtual std::ostream &	info (std::ostream &os) const
	Returns information in an output stream.
Protected Attributes
std::auto_ptr< std::ofstream >	ofs_
	Stream for output file.
Private Member Functions
void	closeStreams_ (const uint &n)
	Closes the streams.
void	createStreams_ (bool data)
	Create the streams.
template<class F >
void	write_ (concepts::GlobalPostprocess< F > &postProcess, BaseOutputCell< F > &matlab, bool data=false)
	Creates standard streams, writes to streams, writes to file and clear and delete all streams.
Private Attributes
uint	cnt_
	Number of vectors written to the files.
uint	dim_
	Spatial dimension of the space.
std::map< std::string, std::ostream * >	s_ptr_
	Pointer to the streams, i.e. *(s_ptr_["vtxmsh"]) for FE mesh.

Detailed Description

Draws a picture of data in Matlab format and stores the result in a single file.

The data is stored in a Matlab M-file by appending '.m'. The data can be read into Matlab by giving the file name as commands (and ommiting the ending '.m').

In general there is the FE-mesh (cells) and the output mesh, which in hp-FEM is given by the quadrature points. The data points are given in the vertices of the output mesh (x, y).

The FE-mesh of triangles or quadrilaterials is given by edgemsh, while vtxmsh consists of the vertices. For a FE-mesh with cells with only straight edges its more efficient to use vtxmsh instead of edgemesh. In each column there are the numbers of the vertices of one cell given, and can be plotted by

      plot(x(edgemsh),y(edgemsh),'k');

The data values are in the variable u. For vector values spaces or repeated set of values the i.th component is U{i} (as well as in u(i,:)). In the following examples of scalar data one can replace u(msh) with U{i}(msh) for plotting one component of vector valued data.

Scalar data is plotted in the view from above with

      patch(x(msh),y(msh),u(msh))

whereby in msh the output mesh is given.

Its possible to emphasize the FE-mesh in this diagramme with

      patch(x(msh),y(msh),u(msh));
      hold on
      plot(x(edgemsh),y(edgemsh),'k');

whereby in edgemsh represents the points in the output mesh lying on the FE mesh.

As the command contour is only applicable to tensor product meshes, there is in general no contour plot possible.

Scalar data is plotted in the side view with

fill3(x(msh),y(msh),u(msh),u(msh));

Its possible to emphasize the FE-mesh in this diagramme with

      fill3(x(msh),y(msh),u(msh),u(msh));
      hold on
      plot3(x(edgemsh),y(edgemsh),u(edgemsh),'k','linewidth',2)

The data can be shown unicoloured in side view with

      fill3(x(msh),y(msh),u(msh),ones(size(msh)));

For vector valued spaces, the variables of the data values are U{1},..,U{n}.

2D Vectorial data is shown with

      quiver(x,y,U{1},U{2});

Its possible to emphasize the FE-mesh in this diagramme with

      quiver(x,y,U{1},U{2});
      hold on
      plot(x(edgemsh),y(edgemsh),'k');

Author:: Kersten Schmidt, 2005

Examples:: BGT_0.cc, exactDtN.cc, inhomDirichletBCs.cc, inhomDirichletBCsLagrange.cc, inhomNeumannBCs.cc, and RobinBCs.cc.

Definition at line 112 of file matlab.hh.

Constructor & Destructor Documentation

template<class G >

graphics::MatlabGraphics::MatlabGraphics	(	const concepts::Space< G > &	spc,
		const std::string	filename,
		const uint	dim = `2`
	)

Constructor for output of mesh only.

Parameters:

spc	Space which holds the mesh
filename	Name base for the files to be written
dim	Spatial dimension of the cells

Definition at line 218 of file matlab.hh.

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graphics::MatlabGraphics::MatlabGraphics	(	concepts::Mesh &	msh,
		const std::string	filename,
		const uint	dim = `2`,
		const uint	points = `noPoints`
	)

Constructor for output of mesh only.

Parameters:

msh	Mesh
filename	Name base for the files to be written
dim	Spatial dimension of the cells

template<class F , class G >

graphics::MatlabGraphics::MatlabGraphics	(	const concepts::Space< G > &	spc,
		const std::string	filename,
		const concepts::Vector< F > &	sol,
		const uint	dim = `2`,
		const concepts::ElementFunction< F, G > *	fun = `0`
	)

Constructor for output of solutions and functions of it.

Parameters:

spc	Space on which the data should be plotted
filename	Name base for the files to be written
sol	The first solution set which should be plotted
dim	Spatial dimension of the cells
fun	Function of the FE function, e.g. itself.

Definition at line 232 of file matlab.hh.

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template<class F , class G >

graphics::MatlabGraphics::MatlabGraphics	(	const concepts::Space< G > &	spc,
		const std::string	filename,
		const concepts::ElementFormula< F, G > &	frm,
		const uint	dim = `2`
	)

Constructor for output of a element formula.

Parameters:

spc	Space on which the data should be plotted
filename	Name base for the files to be written
frm	Element formula
dim	Spatial dimension of the cells

Definition at line 249 of file matlab.hh.

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template<class F >

graphics::MatlabGraphics::MatlabGraphics	(	concepts::Mesh &	msh,
		const std::string	filename,
		const concepts::PiecewiseFormulaBase< F > &	frm,
		const uint	dim = `2`,
		const uint	points = `noPoints`
	)

Constructor for output of a scalar formula.

Parameters:

msh	Mesh
filename	Name base for the files to be written
frm	Formula
dim	Spatial dimension of the cells
points	Number of points inside the element (in one direction)

Definition at line 265 of file matlab.hh.

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virtual graphics::MatlabGraphics::~MatlabGraphics ( ) [inline, virtual]

Definition at line 164 of file matlab.hh.

Member Function Documentation

void graphics::MatlabGraphics::closeStreams_ ( const uint & n ) [private]

Closes the streams.

void graphics::MatlabGraphics::createStreams_ ( bool data ) [private]

Create the streams.

virtual std::ostream& graphics::MatlabGraphics::info ( std::ostream & os ) const [protected, virtual]

Returns information in an output stream.

Reimplemented from graphics::OutputBase.

template<class F , class G >

void graphics::MatlabGraphics::operator()	(	const concepts::Space< G > &	spc,
		const concepts::Vector< F > &	sol,
		const concepts::ElementFunction< F, G > *	fun = `0`
	)

Application operator for output of solutions and functions of it.

Parameters:

spc	Space on which the data should be plotted
sol	The first solution set which should be plotted
fun	Function of the FE function, e.g. itself.

Definition at line 281 of file matlab.hh.

template<class F , class G >

void graphics::MatlabGraphics::operator()	(	const concepts::Space< G > &	spc,
		const concepts::Formula< F > &	frm
	)

Application operator for output of a scalar formula.

Parameters:

spc	Space on which the data should be plotted
frm	Formula

Definition at line 288 of file matlab.hh.

template<class F , class G >

void graphics::MatlabGraphics::operator()	(	concepts::Mesh &	msh,
		const concepts::Formula< F > &	frm,
		const uint	points = `5`
	)

Application operator for output of a scalar formula.

Parameters:

msh	Mesh
frm	Formula

Definition at line 294 of file matlab.hh.

template<class F >

void graphics::MatlabGraphics::write_	(	concepts::GlobalPostprocess< F > &	postProcess,
		BaseOutputCell< F > &	matlab,
		bool	data = `false`
	)		`[private]`

Creates standard streams, writes to streams, writes to file and clear and delete all streams.

Definition at line 301 of file matlab.hh.

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Member Data Documentation

uint graphics::MatlabGraphics::cnt_ [private]

Number of vectors written to the files.

Definition at line 214 of file matlab.hh.

uint graphics::MatlabGraphics::dim_ [private]

Spatial dimension of the space.

Definition at line 212 of file matlab.hh.

uint graphics::MatlabGraphics::noPoints [static]

Definition at line 194 of file matlab.hh.

std::auto_ptr<std::ofstream> graphics::OutputBase::ofs_ [protected, inherited]

Stream for output file.

Definition at line 85 of file basis.hh.

std::map<std::string, std::ostream*> graphics::MatlabGraphics::s_ptr_ [private]

Pointer to the streams, i.e. *(s_ptr_["vtxmsh"]) for FE mesh.

Definition at line 210 of file matlab.hh.

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

graphics/matlab.hh

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation