jvx.numeric

Class PnTranslationRK

java.lang.Object

jv.object.PsObject

jvx.numeric.PnGeodesicRK

jvx.numeric.PnTranslationRK

All Implemented Interfaces:

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

public class PnTranslationRK
extends PnGeodesicRK

Discrete Runge-Kutta method on element sets. Vector field is given at vertices and is extended to the adjacent triangles by geodesic translation. Element set must be triangulated.

See Also:

PnGeodesicRK, Serialized Form

Author:

Eike Preuß

Version:

00.01.00, 1.00 (ep) created

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
PnTranslationRK(PgElementSet geom) Initializes runge-kutta.

Method Summary

Modifier and Type	Method and Description
void	eval(int elemInd, PdBary bary, PdBaryDir out) Returns barycentric interpolation between representations of vectors given at vertices.
void	setVectorField(int[] origElem, PdBaryDir[] origDir, int[] origLocVertInd) Sets vector field and calculates needed data.

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

PnTranslationRK

public PnTranslationRK(PgElementSet geom)

Initializes runge-kutta. Before any actions a vector field must be set.

Parameters:

geom - underlying geometry

See Also:

setVectorField(int[], jv.vecmath.PdBaryDir[], int[])

Method Detail

setVectorField

public void setVectorField(int[] origElem,
                           PdBaryDir[] origDir,
                           int[] origLocVertInd)

Sets vector field and calculates needed data. Parameters must contain data for one vector at each vertex of the geometry.

Parameters:

origElem - for every vertex the element in which origDir lies

origDir - for every vertex the vector on an element

origLocVertInd - local vertex index of the base vertex of vector in origElem

eval

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

Returns barycentric interpolation between representations of vectors given at vertices. Vectors at vertices are translated along (vertices to point) and then interpolated.

Specified by:

eval in class PnGeodesicRK

Parameters:

elemInd - element in 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:

PnElementRK.eval(int, jv.vecmath.PdBary, jv.vecmath.PdBaryDir), PnVertexRK.eval(int, jv.vecmath.PdBary, jv.vecmath.PdBaryDir), eval(int, jv.vecmath.PdBary, jv.vecmath.PdBaryDir)