mathcomp.assemble
Class MiniAssembler

java.lang.Object
  mathcomp.monitor.DefaultReportable
      mathcomp.monitor.DefaultAlgorithm
          mathcomp.assemble.Assembler
              mathcomp.assemble.MiniAssembler

All Implemented Interfaces:

java.lang.Runnable, Algorithm, Reportable

Direct Known Subclasses:

AbstractCDA_Mini, MiniLaplaceAssembler

public abstract class MiniAssembler
extends Assembler

An Assembler class for mini elements.

Author:

ch.wust

Field Summary

Fields inherited from class mathcomp.assemble.Assembler

dirichletBoundaryValues, solScale

Constructor Summary

MiniAssembler()

Method Summary

void	createDof(Grid grid, java.util.Set dof) All global Objects, that represent a degreeOfFreedom are added to dof.
double[]	evalApproxGradient(Node n, Triangle t, Vector x) For H1 error calculations we need to know the gradient of the approximated solution in a node n.
double	evalApproxSolution(Node n, Triangle t, Vector x) Evaluates the FEM solution in a Node.
double	evalBasisFuncOnRef(Node u, int localBasisNumber) Returns the value of the linear basis function with the local number localBasisNumber at the Node u on the standart-triangle.
double	evalGradXBasisFuncOnRef(Node u, int localBasisNumber)
double	evalGradYBasisFuncOnRef(Node u, int localBasisNumber)
int	getLocalNodeNumber(Triangle t, Node n)
java.util.Set	getPaintNodes()

Methods inherited from class mathcomp.assemble.Assembler

addDirichletNodes, assembleGlobal, calcDirichletBoundary, createSurfaces, createSurfaces, evalExactGradient, evalExactSolution, evalF, getDof, getElementMatrix, getEpsilon, getErrorCalculator, getExactPartialX, getExactPartialY, getGrid, getInfoUrl, getM, getPreferredGridFileName, getSolScale, getY, report, run, setEpsilon, setGrid, setM, setTauIndex, setY, toString

Methods inherited from class mathcomp.monitor.DefaultAlgorithm

algoAbortIfNeeded, algoCancel, algoClear, algoCount, algoIncrement, algoMax, isAlgoCancel, setAlgoCount, setAlgoMax

Methods inherited from class mathcomp.monitor.DefaultReportable

getReport, setReport

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface mathcomp.monitor.Reportable

getReport, setReport

Constructor Detail

MiniAssembler

public MiniAssembler()

Method Detail

createDof

public void createDof(Grid grid,
                      java.util.Set dof)

Description copied from class: Assembler

All global Objects, that represent a degreeOfFreedom are added to dof.

Specified by:

createDof in class Assembler

Parameters:

grid - the current grid

dof - the Set where the DOFs have to be put in

getPaintNodes

public java.util.Set getPaintNodes()

evalApproxSolution

public double evalApproxSolution(Node n,
                                 Triangle t,
                                 Vector x)

Description copied from class: Assembler

Evaluates the FEM solution in a Node. To do that we do need the triangle. We need this method for an easy l2 and l\infty error calculation.

Specified by:

evalApproxSolution in class Assembler

Parameters:

n - Node where the solution has to be evaluated

t - the triangle that contains the Node n

x - the solution vector

Returns:

the value of the solution in n

evalApproxGradient

public double[] evalApproxGradient(Node n,
                                   Triangle t,
                                   Vector x)

Description copied from class: Assembler

For H1 error calculations we need to know the gradient of the approximated solution in a node n. If we don't know that, return [0.0,0.0] for every node n. TODO this should become abstract.

Overrides:

evalApproxGradient in class Assembler

Parameters:

n - node where the approximated gradient should be evaluated

evalBasisFuncOnRef

public double evalBasisFuncOnRef(Node u,
                                 int localBasisNumber)

Returns the value of the linear basis function with the local number localBasisNumber at the Node u on the standart-triangle.

evalGradXBasisFuncOnRef

public double evalGradXBasisFuncOnRef(Node u,
                                      int localBasisNumber)

evalGradYBasisFuncOnRef

public double evalGradYBasisFuncOnRef(Node u,
                                      int localBasisNumber)

getLocalNodeNumber

public int getLocalNodeNumber(Triangle t,
                              Node n)