vgp.curve.subdivision
Class PjSubdivisionCurve

java.lang.Object
  jv.object.PsObject
      jv.project.PjProject
          vgp.curve.subdivision.PjSubdivisionCurve

All Implemented Interfaces:

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

public class PjSubdivisionCurve

extends PjProject

Demonstrates ideas for a subdivision algorithm of curves on surfaces.

See Also:

Serialized Form

Field Summary

Fields inherited from class jv.object.PsObject

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

PjSubdivisionCurve()

Method Summary

static PgPolygonOnElementSet	computeSubdivisionCurve(PgElementSet geom, PiVector refElem, PdBary[] refBary, int depth, PgPolygonOnElementSet outpoly, PgPolygon outpolyGeom, boolean reuseTriangleStrips) Chaikin-Type subdivision.
PgGeometryIf	getGeometry() Get currently selected geometry of project.
boolean	getReuseTriangleRunsWhileIterating()
PgGeometryIf	getSelectedGeometry()
void	init() Initialize and reset project, stops the running animation if any.
void	removeGeometry()
void	setGeometry(PgGeometry geom)
void	setReuseTriangleRunsWhileIterating(boolean flag)
void	start() Method is invoked during loading of a project in JavaView.
boolean	update(java.lang.Object event) Event handling method in the update mechanism.

Methods inherited from class jv.project.PjProject

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

Methods inherited from interface jv.object.PsUpdateIf

getFather, getName, setParent

Constructor Detail

PjSubdivisionCurve

public PjSubdivisionCurve()

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()

setGeometry

public void setGeometry(PgGeometry geom)

Parameters:

geom - needs to be triangulated

setReuseTriangleRunsWhileIterating

public void setReuseTriangleRunsWhileIterating(boolean flag)

getReuseTriangleRunsWhileIterating

public boolean getReuseTriangleRunsWhileIterating()

getGeometry

public PgGeometryIf getGeometry()

Description copied from class: PjProject

Get currently selected geometry of project. Subclasses should return the major geometry offered to other module projects.

Overrides:

getGeometry in class PjProject

See Also:

PjProject.selectGeometry(PgGeometryIf)

getSelectedGeometry

public PgGeometryIf getSelectedGeometry()

removeGeometry

public void removeGeometry()

computeSubdivisionCurve

public static PgPolygonOnElementSet computeSubdivisionCurve(PgElementSet geom,
                                                            PiVector refElem,
                                                            PdBary[] refBary,
                                                            int depth,
                                                            PgPolygonOnElementSet outpoly,
                                                            PgPolygon outpolyGeom,
                                                            boolean reuseTriangleStrips)

Chaikin-Type subdivision.

Parameters:

geom - underlying triangulation, 2d surface in 3d

refElem - vector of element indices for reference points

refBary - vector of barycentric coordinates for reference points

depth - num of subdivision steps

outpoly - result is put here (intrinsic data), may be null

outpolyGeom - result is put here (3d data), may be null

reuseTriangleStrips - use element strips from previous step for current step; should be true in normal case, false only for demonstration purpose

Returns:

subdivision curve

update

public boolean update(java.lang.Object event)

Description copied from interface: PsUpdateIf

Event handling method in the update mechanism. Events not handled will be passed to m_parent or super in this sequence.

Specified by:

update in interface PsUpdateIf

Overrides:

update in class PsObject

See Also:

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