jvx.numeric

Class PnHodgeW

java.lang.Object

jv.object.PsObject

jvx.numeric.PnFunction

jvx.numeric.PnEnergy

jvx.numeric.PnDiriEnergy

jvx.numeric.PnHodgeW

All Implemented Interfaces:

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

public class PnHodgeW
extends PnDiriEnergy

Energy to obtain potential function u.

See Also:

Serialized Form

Author:

Konrad Polthier

Version:

05.09.00, 1.10 revised (ep) Boundary conditions on/off switch added.
05.09.00, 1.05 revised (ep) m_gradFi changed to protected and added method getGradFi.
27.03.00, 1.01 revised (ep) Boundary restrictions.
24.11.99, 1.00 created (kp)

Field Summary

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
PnHodgeW()

Method Summary

Modifier and Type	Method and Description
double	eval(PdVector coord) Compute energy of a coord vector using newly initialized stiffness matrix.
PdVector	evalGradient(PdVector coord, PdVector gradient) Evaluate Area gradient of a coord vector using the stiffness matrix of a PnArea instance.
PdVector[][]	getJGradFi()
void	init() If instance has missing name then assign default name 'Object_NUMBER' where number is the total number of already created instances.
void	initSurface(PgElementSet domain, PgElementSet surface) Method called from energyMinimizer.minimizeStep() to update the stiffness matrix after conjugate gradient method has returned.
boolean	setSurface(PgElementSet domain, PgElementSet surface) Set domain and surface, and initialize energy structure.
void	setVectorField(PgVectorField vf) Set vector field.

Methods inherited from class jvx.numeric.PnDiriEnergy

evalHessian

Methods inherited from class jvx.numeric.PnEnergy

computeNormalizedHessian, getConstrain, getNumOfVariables, getSpectrum, getZeroGradientAtBounds, isEnabledConstrainMatrix, isUseConstrainMatrix, setConstrain, setEnabledConstrainMatrix, setUseConstrainMatrix, setZeroGradientAtBounds, testEigenvalues

Methods inherited from class jvx.numeric.PnFunction

enableEvaluation, isEvaluable

Methods inherited from class jv.object.PsObject

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

Methods inherited from class java.lang.Object

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

Constructor Detail

PnHodgeW

public PnHodgeW()

Method Detail

init

public void init()

Description copied from class: PsObject

If instance has missing name then assign default name 'Object_NUMBER' where number is the total number of already created instances.

Overrides:

init in class PnDiriEnergy

initSurface

public void initSurface(PgElementSet domain,
                        PgElementSet surface)

Method called from energyMinimizer.minimizeStep() to update the stiffness matrix after conjugate gradient method has returned. E.g. PnHodgeW should copy surface into domain if in iteration mode i.e. if dimension of domain and surface are equal.

Overrides:

initSurface in class PnDiriEnergy

Version:

02.08.00, 1.10 revised (kp) Initialization of m_stiffMatrix removed since done in superclass.

setSurface

public boolean setSurface(PgElementSet domain,
                          PgElementSet surface)

Set domain and surface, and initialize energy structure. Method is called from outside whenever domain or surface has been updated.

Overrides:

setSurface in class PnDiriEnergy

Parameters:

domain - additional geometry used to specify maps

surface - geometry which is usually optimized

Version:

02.08.00, 1.10 revised (kp) Creation of m_stiffMatrix removed since done in superclass.

setVectorField

public void setVectorField(PgVectorField vf)

Set vector field. Method is called from outside whenever vector field has been updated.

eval

public double eval(PdVector coord)

Compute energy of a coord vector using newly initialized stiffness matrix. Method uses the array m_store for intermediate storage and modifies its entries.

Overrides:

eval in class PnEnergy

Parameters:

coord - Coordinate vector with list of doubles

Returns:

double Energy of coordinate vector

See Also:

PnEnergy

Author:

Konrad Polthier

Version:

25.11.99, 1.00 created (kp) Derived from PnDiriEnergy.eval()

evalGradient

public PdVector evalGradient(PdVector coord,
                             PdVector gradient)

Evaluate Area gradient of a coord vector using the stiffness matrix of a PnArea instance.

Overrides:

evalGradient in class PnEnergy

Parameters:

coord - Coordinate vector with list of doubles

gradient - Gradient vector to be modified

See Also:

PnEnergy

Author:

Konrad Polthier

Version:

27.03.00, 1.01 revised (ep) Gradient is set to zero on boundary.
25.11.99, 1.00 created (kp) Derived from PnDiriEnergy.evalGradient()

getJGradFi

public PdVector[][] getJGradFi()