jvx.numeric
Class PnElementRK

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

All Implemented Interfaces:

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

public class PnElementRK

extends PnGeodesicRK

Discret Runge-Kutta method on ElementSets. Vector field is given at element centers. ElementSet must be triangulated.

See Also:

Serialized Form

Field Summary

protected PdBaryDir[]

m_vec Intrinsic vector field given at element centers [elementindex].

Fields inherited from class jvx.numeric.PnGeodesicRK

m_fast, m_geom, m_lastLength, m_outpoly

Fields inherited from class jv.object.PsObject

HAS_CONFIG_PANEL, HAS_INFO_PANEL, HAS_MATERIAL_PANEL, INSPECTOR_INFO, INSPECTOR_INFO_EXT, IS_DELETED, IS_FIXED, IS_SELECTED, IS_USED, m_infoPanel, m_name, m_panelList, m_parent, m_tag, m_updateList, NUM_TAGS

Constructor Summary

PnElementRK(PgElementSet geom)

Method Summary

void	eval(int elemInd, PdBary bary, PdBaryDir out) Evaluate vector field at given point.
void	setVectorField(PdBaryDir[] vec) Sets intrinsic vector field given at element centers.
void	setVectorField(PgVectorField vec) Set intrinsic vector field as projection of extrinsic vector field given at element centers.

Methods inherited from class jvx.numeric.PnGeodesicRK

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

Methods inherited from class jv.object.PsObject

addInspector, addUpdateListener, 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, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

m_vec

protected PdBaryDir[] m_vec

Intrinsic vector field given at element centers [elementindex].

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)

Set 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)

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

Overrides:

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