vgp.curve.elastic
Class PnElasticCurvature

java.lang.Object
  |
  +--jv.object.PsObject
        |
        +--jvx.numeric.PnOde
              |
              +--vgp.curve.elastic.PnElasticCurvature

All Implemented Interfaces:

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

public class PnElasticCurvature

extends PnOde

solves curvature ode for elastic curves: K'' = b + (a-.5*K*K)*K

Version:

9.12.99, 1.00 created (ep)

See Also:

Serialized Form

Field Summary

protected int	m_dim
protected int	m_i
protected PgPolygon	m_p
protected double	m_paramA
protected double	m_paramB
protected double	m_x
protected double[]	m_y
protected double[]	m_yOut

Fields inherited from class jvx.numeric.PnOde

m_length, m_order, m_stepSize, m_x0, m_y0

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

PnElasticCurvature()

Method Summary

void	diffEquation(double x, double[] y, double[] dy) Method should be overwritten y an application with problem dependent ODE.
void	init() If instance has missing name then assign default name 'object_NUMBER' where number is the total number of already created instances.
void	initSolve(PgPolygon p)
void	nextStep()
void	setInitialData(double x, double[] y, double h, double len, double A, double B)
void	solve(PgPolygon p)

Methods inherited from class jvx.numeric.PnOde

rungeKutta, setInitialData, setOrder, solve

Methods inherited from class jv.object.PsObject

addInspector, addUpdateListener, clearTag, clone, clone, clone, copy, getFather, getInfoPanel, getInspector, getName, getNumObjects, hasInspector, hasTag, hasUpdateListener, 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_paramA

protected double m_paramA

m_paramB

protected double m_paramB

m_p

protected PgPolygon m_p

m_y

protected double[] m_y

m_yOut

protected double[] m_yOut

m_x

protected double m_x

m_dim

protected int m_dim

m_i

protected int m_i

Constructor Detail

PnElasticCurvature

public PnElasticCurvature()

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 PnOde

setInitialData

public void setInitialData(double x,
                           double[] y,
                           double h,
                           double len,
                           double A,
                           double B)

diffEquation

public void diffEquation(double x,
                         double[] y,
                         double[] dy)

Description copied from class: PnOde

Method should be overwritten y an application with problem dependent ODE.

Overrides:

diffEquation in class PnOde

initSolve

public void initSolve(PgPolygon p)

nextStep

public void nextStep()

solve

public void solve(PgPolygon p)

Overrides:

solve in class PnOde