jvx.numeric

Class PnElementRK

java.lang.Object

jv.object.PsObject

jvx.numeric.PnGeodesicRK

jvx.numeric.PnElementRK

All Implemented Interfaces:

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

public class PnElementRK
extends PnGeodesicRK

Discrete Runge-Kutta solver on triangular element sets for integration of an element based vector field. Vector field is given at element centers. ElementSet must be triangulated.

See Also:

Serialized Form

Author:

Eike Preuß

Version:

22.01.03, 1.10 revised (ep) Inversion of the direction of integration added.

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
PnElementRK(PgElementSet geom)

Method Summary

Modifier and Type	Method and Description
void	eval(int elemInd, PdBary bary, PdBaryDir out) Evaluates vector field at given point.
void	setVectorField(PdBaryDir[] vec) Sets intrinsic vector field given at element centers.
void	setVectorField(PgVectorField vec) Sets intrinsic vector field as projection of extrinsic vector field given at element centers.

Methods inherited from class jvx.numeric.PnGeodesicRK

eval, getInvertDirection, getStepLength, nextStep, prepareSolve, setFirstOrder, setFourthOrder, setGeometry, setInvertDirection, solve, solve, solve

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, toString, update, updatePanels

Methods inherited from class java.lang.Object

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

Constructor Detail

PnElementRK

public PnElementRK(PgElementSet geom)

Parameters:

geom - underlying triangulation

Method Detail

setVectorField

public void setVectorField(PdBaryDir[] vec)

Sets intrinsic vector field given at element centers.

Parameters:

vec - array of intrinsic vectors that are interpreted to begin in the center of the element. The position of a vector in array vec equals the global element index of the element that contains the vector

setVectorField

public void setVectorField(PgVectorField vec)

Sets intrinsic vector field as projection of extrinsic vector field given at element centers.

Parameters:

vec - vector field in adjacent space

See Also:

PgVectorField

eval

public void eval(int elemInd,
                 PdBary bary,
                 PdBaryDir out)

Evaluates vector field at given point. This implementation returns the constant vector in given element.

Specified by:

eval in class PnGeodesicRK

Parameters:

elemInd - element on which the vector field will be evaluated

bary - barycentric coordinates of the point at which the vector field will be evaluated

out - output: in this PdBaryDir the evaluated direction will be stored

See Also:

PnGeodesicRK