jvx.numeric
Class PnTranslationRK

java.lang.Object
  |
  +--jv.object.PsObject
        |
        +--jvx.numeric.PnGeodesicRK
              |
              +--jvx.numeric.PnTranslationRK

All Implemented Interfaces:

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

public class PnTranslationRK

extends PnGeodesicRK

Discret Runge-Kutta method on ElementSets. Vector field is given at vertices and is extended to the adjacent triangles by geodesic translation. ElementSet must be triangulated.

Version:

??.01.00, 1.00 (ep) created

See Also:

PnGeodesicRK, Serialized Form

Fields inherited from class jv.object.PsObject

HAS_CONFIG_PANEL, HAS_INFO_PANEL, HAS_MATERIAL_PANEL, HAS_TEXTURE_PANEL, INSPECTOR_INFO, INSPECTOR_INFO_EXT, IS_DELETED, IS_FIXED, IS_SELECTED, IS_USED, NUM_TAGS

Constructor Summary

PnTranslationRK(PgElementSet geom)
Initializes runge-kutta.

Method Summary

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

getStepLength, getStepPolygon, nextStep, prepareSolve, setFirstOrder, setFourthOrder, setGeometry, solve

Methods inherited from class jv.object.PsObject

addInspector, addUpdateListener, assureInspector, clearTag, clone, clone, clone, copy, getFather, getInfoPanel, getInspector, getName, getNumObjects, hasInspector, hasTag, hasUpdateListener, init, instanceOf, instanceOf, removeInspector, removeUpdateListener, setName, setParent, 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->point) and then interpolated.

Overrides:

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