jvx.numeric

Class PnStiffAniso

java.lang.Object

jv.object.PsObject

jvx.numeric.PnSparseMatrix

jvx.numeric.PnStiffMatrix

jvx.numeric.PnStiffAniso

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, PsUpdateIf, PdMatrixIf

public class PnStiffAniso
extends PnStiffMatrix

Create and setup stiffness matrix for the anisotropic Laplace operator. This matrix is not symmetric, hence for solving linear equation systems involving this class use jvx.numeric.PnBiconjugateGradient.

See Also:

Serialized Form

Author:

Klaus Hildebrandt

Version:

06.03.03, 1.00 created (kh)

Field Summary

Fields inherited from class jvx.numeric.PnStiffMatrix

m_noe

Fields inherited from class jvx.numeric.PnSparseMatrix

USE_LARGER_BUFFER

Fields inherited from class jv.object.PsObject

HAS_BOUNDARY_PANEL, HAS_CONFIG_PANEL, HAS_INFO_PANEL, HAS_LABEL_PANEL, HAS_MATERIAL_PANEL, HAS_TEXTURE_PANEL, HAS_VECTOR_PANEL, INSPECTOR_INFO, INSPECTOR_INFO_EXT, IS_DELETED, IS_FIXED, IS_FOCUSSED, IS_PICKED, IS_SELECTED, IS_USED, NUM_TAGS

Constructor Summary

Constructors

Constructor and Description
PnStiffAniso(PgElementSet surface) Constructor
PnStiffAniso(PgElementSet surface, double featureThreshold) Constructor

Method Summary

Modifier and Type	Method and Description
double	getFeatureDetect() Get value of the parameter that determines what is regarded as a feature that will be preserved by te flow.
void	init(PgElementSet surface) Initializes the stiffness matrix by computing the index vector and matrix entries.
void	setFeatureDetect(double featureDetect) Set parameter that determines what is regarded as a feature that will be preserved by te flow.
void	useStepFunction(boolean flag) The default behaviour of this feature preserving smoothing operator is to have a smooth transition in the treatment of those parts that are kept as features and those that are smoothed.

Methods inherited from class jvx.numeric.PnStiffMatrix

computeRightVector, computeStiffnessMatrix, init

Methods inherited from class jvx.numeric.PnSparseMatrix

add, add, addDiagonal, addDiagonal, addEntry, addNew, appendEntry, clear, clearColumn, clearRow, compress, concatMatrices, copy, copyNew, deleteColumn, deleteRow, extractRows, getColIndex, getColIndices, getColIndices, getDiagIndex, getEntries, getEntries, getEntry, getEntrySparse, getIndex, getNumCols, getNumEntries, getNumEntries, getNumRows, isEqualTo, isSquare, leftMultMatrix, leftMultVector, leftMultVector, leftMultVector, leftMultVector, multMatrices, multQuadratic, multScalar, multScalar, removeZeros, rightMultMatrix, rightMultVector, rightMultVector, rightMultVector, rightMultVector, setEntry, setEntrySparse, setNumEntries, setRow, setSize, setSize, setSize, sortEntries, sub, subNew, toPdMatrix, toShortString, toString, transpose, transpose, transposeNew, transposeNew, validate, vstackSparseMatrices

Methods inherited from class jv.object.PsObject

addInspector, addUpdateListener, assureInspector, clearTag, clone, clone, clone, copy, getFather, getInfoPanel, getInspector, getName, getNumObjects, getSymbol, hasInspector, hasTag, hasUpdateListener, init, instanceOf, instanceOf, newInspector, newInspector, removeInspector, removeInspector, removeUpdateListener, setName, setParent, setSymbol, setTag, update, updatePanels

Methods inherited from class java.lang.Object

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

Constructor Detail

PnStiffAniso

public PnStiffAniso(PgElementSet surface)

Constructor

PnStiffAniso

public PnStiffAniso(PgElementSet surface,
                    double featureThreshold)

Constructor

Method Detail

init

public void init(PgElementSet surface)

Initializes the stiffness matrix by computing the index vector and matrix entries. Method can be used to reset the stiffness matrix. All memory allocation is done in constructor.

Overrides:

init in class PnStiffMatrix

setFeatureDetect

public void setFeatureDetect(double featureDetect)

Set parameter that determines what is regarded as a feature that will be preserved by te flow.

getFeatureDetect

public double getFeatureDetect()

Get value of the parameter that determines what is regarded as a feature that will be preserved by te flow.

useStepFunction

public void useStepFunction(boolean flag)

The default behaviour of this feature preserving smoothing operator is to have a smooth transition in the treatment of those parts that are kept as features and those that are smoothed. This method allows to use the non smooth step function instead.