vgp.curve.cycloid
Class PjCycloid

java.lang.Object
  |
  +--jv.object.PsObject
        |
        +--jv.project.PjProject
              |
              +--vgp.curve.cycloid.PjCycloid

All Implemented Interfaces:

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

public class PjCycloid

extends PjProject

Generate a cycloid by tracing a point on a rolling disk.

Version:

08.11.99, 1.00 revised (kp)
08.11.99, 1.00 created (kp)

Author:

Konrad Polthier

See Also:

Serialized Form

Field Summary

protected boolean	m_bShowCircle
protected boolean	m_bShowCycloid
protected boolean	m_bShowDelaunay
protected PgPolygon	m_circle
protected PgPolygon	m_cycloid
protected PuInteger	m_cycloidDiscr
protected int	m_defCycloidDiscr
protected double	m_defDistance
protected double	m_defLength
protected double	m_defRadius
protected PgElementSet	m_delaunay
protected PuDouble	m_distance
protected PuDouble	m_length
protected int	m_numCircleDiscr
protected PuDouble	m_radius
protected PgPolygon	m_stick

Fields inherited from class jv.project.PjProject

m_anim, m_bAutoFit, m_display, m_displayList, m_geometry, m_parm, m_rootGeometry

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

PjCycloid()

Method Summary

void	init() Initialize and reset project, stops the running animation if any.
void	setCycloidDiscr(int cycloidDiscr) Set number of points on cycloid curve.
void	setDistance(double d) Set distance of traced point to center of rolling ball.
boolean	setTime(PsTimeEvent timeEvent) Empty method, must be overwritten by subclasses to update dynamic object.
void	start() Method is invoked during loading of a project in JavaView.
boolean	update(java.lang.Object event) Update the class whenever a child has changed.

Methods inherited from class jv.project.PjProject

addDisplay, addGeometry, addGeometry, dispose, dragDisplay, dragInitial, dragVertex, fitDisplays, getAnimation, getDisplay, getDisplays, getGeometry, getGeometry, getNumGeometries, getParameter, getViewer, hasAnimation, hasDisplay, isEnabledAutoFit, markVertices, pickDisplay, pickInitial, pickVertex, removeDisplay, removeGeometries, removeGeometry, selectDisplay, selectGeometry, setAnimation, setDisplay, setEnabledAutoFit, setParameter, setViewer, stop, unmarkVertices

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, updatePanels

Methods inherited from class java.lang.Object

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

Methods inherited from interface jv.anim.PsTimeListenerIf

getName

Methods inherited from interface jv.project.PvPickListenerIf

getName

Methods inherited from interface jv.object.PsUpdateIf

getFather, getName, setParent

Field Detail

m_bShowCircle

protected boolean m_bShowCircle

m_bShowCycloid

protected boolean m_bShowCycloid

m_bShowDelaunay

protected boolean m_bShowDelaunay

m_circle

protected PgPolygon m_circle

m_stick

protected PgPolygon m_stick

m_cycloid

protected PgPolygon m_cycloid

m_delaunay

protected PgElementSet m_delaunay

m_defCycloidDiscr

protected int m_defCycloidDiscr

m_cycloidDiscr

protected PuInteger m_cycloidDiscr

m_defDistance

protected double m_defDistance

m_distance

protected PuDouble m_distance

m_defLength

protected double m_defLength

m_length

protected PuDouble m_length

m_defRadius

protected double m_defRadius

m_radius

protected PuDouble m_radius

m_numCircleDiscr

protected int m_numCircleDiscr

Constructor Detail

PjCycloid

public PjCycloid()

Method Detail

init

public void init()

Description copied from class: PjProject

Initialize and reset project, stops the running animation if any. Does not reset any registered display nor geometry. They must be reset individually in each subclass.

Overrides:

init in class PjProject

start

public void start()

Description copied from class: PjProject

Method is invoked during loading of a project in JavaView.

If a project has an animation object, then the animation panel is shown when the project's this start() method is invoked during loading of the project. Use setAnimation(PsAnimation) to register an animation.

If auto fit is enabled then scenery is scaled to fit in each display.

Overrides:

start in class PjProject

Following copied from class: jv.project.PjProject

See Also:

PvViewerIf.start(), #isEnabledAutoFit(boolean)

update

public boolean update(java.lang.Object event)

Update the class whenever a child has changed. Method is usually invoked from the children.

Overrides:

update in class PsObject

Following copied from interface: jv.object.PsUpdateIf

Parameters:

event - carries a lot of information

Returns:

true if event has been handled, otherwise false

See Also:

PsObject, PsUpdateIf.getFather(), PsUpdateIf.setParent(PsUpdateIf)

setTime

public boolean setTime(PsTimeEvent timeEvent)

Description copied from class: PjProject

Empty method, must be overwritten by subclasses to update dynamic object.

Overrides:

setTime in class PjProject

setDistance

public void setDistance(double d)

Set distance of traced point to center of rolling ball.

Parameters:

d - distance of point to center of disc

setCycloidDiscr

public void setCycloidDiscr(int cycloidDiscr)

Set number of points on cycloid curve.

Parameters:

cycloidDiscr - number of vertices on cycloid curve