vgp.discrete.ellipse

Class PjEllipse

java.lang.Object

jv.object.PsObject

jv.project.PjProject

vgp.discrete.ellipse.PjEllipse

All Implemented Interfaces:

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

public class PjEllipse
extends PjProject

Create discrete CMC surfaces by playing billiard in an ellipse.

See Also:

Serialized Form

Author:

Eike Preuß

Version:

03.02.00, 1.00 created (ep)

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
PjEllipse()

Method Summary

Modifier and Type	Method and Description
void	compute()
static void	computeBillard(double a, double b, PdVector start, PdVector dir, int numIter, PgPolygon poly)
static void	computeEllipse(double a, double b, int numIter, PgPolygon poly)
void	computeXRotation(PgPolygon input, int numSteps, PgElementSet output)
void	dragInitial(PvPickEvent pos) Drag an arbitrary point along a geometry, point may lie inside an element.
void	fixInitialPointWithA()
void	fixInitialPointWithB()
void	init() Initialize and reset project, stops the running animation if any.
void	pickInitial(PvPickEvent pos) Pick an arbitrary point on a geometry, point may lie inside an element.
void	setAutoFit(boolean flag)
void	showBillard()
void	showSurface()
void	showUnrolled()
void	start() Method is invoked during loading of a project in JavaView.
static void	unroll(PgPolygon input, PdVector point, PgPolygon focoutput, PgPolygon polyoutput)
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, dragVertex, fitDisplays, getAnimation, getDisplay, getDisplays, getGeometry, getGeometry, getNumGeometries, getParameter, getParameterInfo, getViewer, hasAnimation, hasDisplay, isEnabledAutoFit, markVertices, pickDisplay, pickVertex, removeDisplay, removeGeometries, removeGeometry, selectDisplay, selectGeometry, setAnimation, setBackColor, setBorderType, setDisplay, setEnabledAutoFit, setGeometry, setParameterInfo, setTime, setViewer, stop, unmarkVertices

Methods inherited from class jv.object.PsObject

addInspector, addUpdateListener, assureInspector, clearTag, clone, clone, clone, copy, getFather, getInfoPanel, getInspector, getName, getNumObjects, getSymbol, hasInspector, hasTag, hasUpdateListener, instanceOf, instanceOf, newInspector, newInspector, removeInspector, removeInspector, removeUpdateListener, setName, setParent, setSymbol, setTag, toString, updatePanels

Methods inherited from class java.lang.Object

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

Methods inherited from interface jv.anim.PsTimeListenerIf

getName

Methods inherited from interface jv.project.PvPickListenerIf

getName

Constructor Detail

PjEllipse

public PjEllipse()

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

See Also:

PvViewerIf.start(), PjProject.isEnabledAutoFit()

compute

public void compute()

computeEllipse

public static void computeEllipse(double a,
                                  double b,
                                  int numIter,
                                  PgPolygon poly)

computeBillard

public static void computeBillard(double a,
                                  double b,
                                  PdVector start,
                                  PdVector dir,
                                  int numIter,
                                  PgPolygon poly)

unroll

public static void unroll(PgPolygon input,
                          PdVector point,
                          PgPolygon focoutput,
                          PgPolygon polyoutput)

computeXRotation

public void computeXRotation(PgPolygon input,
                             int numSteps,
                             PgElementSet output)

pickInitial

public void pickInitial(PvPickEvent pos)

Description copied from class: PjProject

Pick an arbitrary point on a geometry, point may lie inside an element. This method does nothing and must be overwritten.

Specified by:

pickInitial in interface PvPickListenerIf

Overrides:

pickInitial in class PjProject

Parameters:

pos - Pick event issued by the display

See Also:

PvPickListenerIf

dragInitial

public void dragInitial(PvPickEvent pos)

Description copied from class: PjProject

Drag an arbitrary point along a geometry, point may lie inside an element. This method invokes pickInitial(PvPickEvent) and should be overwritten.

Specified by:

dragInitial in interface PvPickListenerIf

Overrides:

dragInitial in class PjProject

Parameters:

pos - Pick event issued by the display

See Also:

PvPickListenerIf

update

public boolean update(java.lang.Object event)

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

Specified by:

update in interface PsUpdateIf

Overrides:

update in class PsObject

Parameters:

event - carries a lot of information

Returns:

true if event has been handled, otherwise false

See Also:

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

fixInitialPointWithB

public void fixInitialPointWithB()

fixInitialPointWithA

public void fixInitialPointWithA()

showBillard

public void showBillard()

showUnrolled

public void showUnrolled()

showSurface

public void showSurface()

setAutoFit

public void setAutoFit(boolean flag)