vgp.curve.common

Class PjCurve

java.lang.Object

jv.object.PsObject

jv.project.PjProject

vgp.curve.common.PjCurve

All Implemented Interfaces:

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

Direct Known Subclasses:

PjSurfCurve

public class PjCurve
extends PjProject

Compute differential geometric curves on hyper surfaces given by an ordinary differential equation.

See Also:

Serialized Form

Version:

09.01.02, 1.30 revised (ep) Set length of curve to something reasonable whenever a surface is assigned to this project.
16.09.00, 1.20 revised (kp) Animation removed since unused.
28.01.00, 1.12 revised (kp) Initial points of curve modified to ensure position inside domain.
01.11.99, 1.11 revised (kp) Construction of ODE moved from computeCurve() to selectCurve().
05.07.99, 1.10 revised (kp) Method getSurfaceName() added Instance variable m_surfaceName added. Tabbed panels added to info panel. m_geom.setParent(this) added and corresponding update handling.

Field Summary

Fields

Modifier and Type	Field and Description
static int	ASYMPTOTIC
static java.lang.String	BASE_SURFACE_NAME
static int	GEODESIC Types of curves.
static int	PRINCIPAL_CURVATURE
static int	SHADOW

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
PjCurve()

Method Summary

Modifier and Type	Method and Description
void	calculateCurve()
java.lang.String	getSurfaceName()
void	init() Initialize and reset project, stops the running animation if any.
void	pickInitial(PvPickEvent pos) 22.6.99: pick a point everywhere on the surface.
boolean	selectCurve(int sel)
boolean	setSurfaceName(java.lang.String surfaceName) Set name of base surface on which curve will be computed.
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, 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

Field Detail

GEODESIC

public static final int GEODESIC

Types of curves.

See Also:

Constant Field Values

SHADOW

public static final int SHADOW

See Also:

Constant Field Values

ASYMPTOTIC

public static final int ASYMPTOTIC

See Also:

Constant Field Values

PRINCIPAL_CURVATURE

public static final int PRINCIPAL_CURVATURE

See Also:

Constant Field Values

BASE_SURFACE_NAME

public static final java.lang.String BASE_SURFACE_NAME

See Also:

Constant Field Values

Constructor Detail

PjCurve

public PjCurve()

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()

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)

getSurfaceName

public java.lang.String getSurfaceName()

setSurfaceName

public boolean setSurfaceName(java.lang.String surfaceName)

Set name of base surface on which curve will be computed. Name of surface must be among existing set of surface classes in package vgp.surface.common.PgSurface_XXX.

Parameters:

surfaceName - Name of existing surface class

Returns:

true on success

selectCurve

public boolean selectCurve(int sel)

calculateCurve

public void calculateCurve()

Author:

Eike Preuss

Version:

16.07.99 revised (kp) Update modified such that info panels get updated.
16.07.99 revised (kp) Check for polygons with discretization less than 2.
00.00.99 created (ep)

pickInitial

public void pickInitial(PvPickEvent pos)

22.6.99: pick a point everywhere on the surface.

Specified by:

pickInitial in interface PvPickListenerIf

Overrides:

pickInitial in class PjProject

Parameters:

pos - Pick event issued by the display

See Also:

PvPickListenerIf