Mesh_2d_3_square Class Reference

#include <geom.h>

Inheritance diagram for Mesh_2d_3_square:

Public Member Functions
	Mesh_2d_3_square (int nx, int ny, int myid=0, int procx=1, int procy=1)
	~Mesh_2d_3_square () override
void	SetU (std::vector< double > &u) const
void	SetF (std::vector< double > &f) const
std::vector< int >	Index_DirichletNodes () const override
void	SaveVectorP (std::string const &name, std::vector< double > const &u) const
Public Member Functions inherited from Mesh
	Mesh (int ndim, int nvert_e=0, int ndof_e=0)
virtual	~Mesh ()
int	Nelems () const
int	NverticesElements () const
int	NdofsElement () const
int	Nnodes () const
int	Ndims () const
void	Resize_Connectivity (int nelem, int nvert_e)
const std::vector< int > &	GetConnectivity () const
std::vector< int > &	GetConnectivity ()
void	Resize_Coords (int nnodes, int ndim)
const std::vector< double > &	GetCoords () const
std::vector< double > &	GetCoords ()
void	SetValues (std::vector< double > &v, const std::function< double(double, double)> &func) const
void	Debug () const
void	Write_ascii_matlab (std::string const &fname, std::vector< double > const &v) const
void	Visualize (std::vector< double > const &v) const

Additional Inherited Members
Protected Member Functions inherited from Mesh
void	SetNelem (int nelem)
void	SetNverticesElement (int nvert)
void	SetNdofsElement (int ndof)
void	SetNnode (int nnode)
void	SetNdim (int ndim)

Detailed Description

2D finite element mesh of the square consiting of linear triangular elements.

Definition at line 219 of file geom.h.

Constructor & Destructor Documentation

Mesh_2d_3_square()

Mesh_2d_3_square::Mesh_2d_3_square	(	int	nx,
		int	ny,
		int	myid = 0,
		int	procx = 1,
		int	procy = 1
	)

Generates the f.e. mesh for the unit square.

Parameters

[in]	nx	number of discretization intervals in x-direction
[in]	ny	number of discretization intervals in y-direction
[in]	myid	my MPI-rank / subdomain
[in]	procx	number of ranks/subdomains in x-direction
[in]	procy	number of processes in y-direction

Definition at line 130 of file geom.cpp.

~Mesh_2d_3_square()

Mesh_2d_3_square::~Mesh_2d_3_square ( )

inlineoverride

Destructor

Definition at line 236 of file geom.h.

Member Function Documentation

Index_DirichletNodes()

std::vector< int > Mesh_2d_3_square::Index_DirichletNodes ( ) const

overridevirtual

Determines the indices of those vertices with Dirichlet boundary conditions

Returns

index vector.

Implements Mesh.

Definition at line 197 of file geom.cpp.

SaveVectorP()

void Mesh_2d_3_square::SaveVectorP	(	std::string const &	name,
		std::vector< double > const &	u
	)		const

Stores the values of vector u of (sub)domain into a file name for further processing in gnuplot. The file stores rowise the x- and y- coordinates together with the value from u . The domain [xl, xr] x [yb, yt] is discretized into nx x ny intervals.

Parameters

[in]	name	basename of file name (file name will be extended by the rank number)
[in]	u	local vector

Warning

Assumes tensor product grid in unit square; rowise numbered (as generated in class constructor). The output is provided for tensor product grid visualization ( similar to Matlab-surf() ).

See also

Mesh_2d_3_square

Definition at line 227 of file geom.cpp.

SetF()

void Mesh_2d_3_square::SetF

(

std::vector< double > &

f

)

const

Set right hand side (rhs) vector on a tensor product grid in the rectangle.

Parameters

[in]

f

rhs vector

Definition at line 182 of file geom.cpp.

SetU()

void Mesh_2d_3_square::SetU

(

std::vector< double > &

u

)

const

Set solution vector based on a tensor product grid in the rectangle.

Parameters

[in]

u

solution vector

Definition at line 168 of file geom.cpp.

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

• geom.h
• geom.cpp