jvx.geom
Class PwSmooth

java.lang.Object
  jv.object.PsObject
      jvx.project.PjWorkshop
          jvx.geom.PwSmooth

All Implemented Interfaces:

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

public class PwSmooth

extends PjWorkshop

implements java.lang.Runnable

Workshop for feature preserving smoothing of surfaces. Anisotropic mean curvature flow and anisotropic prescribed mean curvature flow are implemented.

See Also:

Serialized Form

Field Summary

static int	METHOD_ANISOTROPIC This smoothing method preserves features and sharpens linear feature.
static int	METHOD_ANSIO_PRECRIBED This smoothing method preserves features and sharpens non-linear feature.
PvViewer	viewer

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

PwSmooth()
Constructor

Method Summary

void	cancel() Cancel operation of this workshop by resetting the assigned geometry, and finally close this workshop.
static java.awt.Color	colorMap(double d) Maps (0,1) onto a Color, starting from white to red.
static java.awt.Color	colorMapGray(double d) Maps (0,1) onto a Color using only gray levels.
double	getFeatureDetect() Get parameter that determines what is regareded as a feature when smoothing.
boolean	getKeepBoundary() Get flag to enable/disable moving of boundary vertices during smoothing.
boolean	getKeepSelected() Get flag to enable/disable moving of selected vertices during smoothing.
int	getMaxNumLoops() A smooting process is stoped after this number of loops have been performed cp start.
int	getMethod() Get method used for smoothing.
double	getStepWidth() The step width is a factor the gradient of the actual flow is multiplied with at each iteration step.
void	init() Initializations
boolean	isRunning() Check whether smoothing prcess will be stopped.
boolean	isStopped() Check whether smoothing prcess is currently NOT running a thread.
boolean	isUsingImplicit() See if implicit method to integrate the flow is used.
void	run() Do energy minimization until m_numLoops are done or until a call of stop().
static boolean	scaleGeomByVolume(PgElementSet geom, double volume, double eps, int maxSteps) Rescale geometry to have a given volume.
void	setFeatureDetect(double value) Set parameter that determines what is regareded as a feature when smoothing.
void	setGeometry(PgElementSet geom) Assign a geometry on which this workshop operates, and create a backup copy if workshop is cancelled.
void	setKeepBoundary(boolean bKeepBoundary) Enable/Disable moving of boundary vertices during smoothing.
void	setKeepSelected(boolean bKeepSelected) Enable/Disable moving of selected vertices during smoothing.
void	setMaxNumLoops(int numLoops) A smooting process is stoped after the given number of loops have been performed cp start.
void	setMethod(int method) Set method used for smoothing.
void	setStepWidth(double stepWidth) The step width is a factor the gradient of the actual flow is multiplied with at each iteration step.
void	smoothingStep() Perform one step of smoothing using the actually choosen method and settings.
void	start() Start smoothing in separate thread.
void	stop() Stop smoothing in separate thread.
boolean	update(java.lang.Object event) Update the class whenever a child has changed.
void	useImplicit(boolean flag) Use implicit instead of explicit method to integrate the flow.

Methods inherited from class jvx.project.PjWorkshop

close, getDisplay, getDisplays, getGeometry, getSavedGeometry, getViewer, isModal, ok, removeGeometry, reset, setDisplay, setDisplays, setGeometry, setModal, setViewer

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.object.PsUpdateIf

getFather, getName, setParent

Field Detail

METHOD_ANISOTROPIC

public static int METHOD_ANISOTROPIC

This smoothing method preserves features and sharpens linear feature.

METHOD_ANSIO_PRECRIBED

public static int METHOD_ANSIO_PRECRIBED

This smoothing method preserves features and sharpens non-linear feature. Shrinking effects are compensated.

viewer

public PvViewer viewer

Constructor Detail

PwSmooth

public PwSmooth()

Constructor

Method Detail

init

public void init()

Initializations

Overrides:

init in class PjWorkshop

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 PjWorkshop

Parameters:

event - sender of this update.

Returns:

true if update was correctly handled by superclass.

setGeometry

public void setGeometry(PgElementSet geom)

Assign a geometry on which this workshop operates, and create a backup copy if workshop is cancelled.

cancel

public void cancel()

Description copied from class: PjWorkshop

Cancel operation of this workshop by resetting the assigned geometry, and finally close this workshop.

If necessary, the duplicate of the original geometry is restored into the geometry. The update method of the geometry is called.

Overrides:

cancel in class PjWorkshop

setMethod

public void setMethod(int method)

Set method used for smoothing. All methods available are indexed see METHOD_ANISOTROPIC and METHOD_ANSIO_PRECRIBED.

getMethod

public int getMethod()

Get method used for smoothing. All methods available are indexed see METHOD_ANISOTROPIC and METHOD_ANSIO_PRECRIBED.

setFeatureDetect

public void setFeatureDetect(double value)

Set parameter that determines what is regareded as a feature when smoothing.

getFeatureDetect

public double getFeatureDetect()

Get parameter that determines what is regareded as a feature when smoothing.

useImplicit

public void useImplicit(boolean flag)

Use implicit instead of explicit method to integrate the flow.

isUsingImplicit

public boolean isUsingImplicit()

See if implicit method to integrate the flow is used.

setStepWidth

public void setStepWidth(double stepWidth)

The step width is a factor the gradient of the actual flow is multiplied with at each iteration step. This parameter is often called the time discretization of the flow. A recommanded choice is between 0.01 and 0.1.

getStepWidth

public double getStepWidth()

The step width is a factor the gradient of the actual flow is multiplied with at each iteration step. This parameter is often called the time discretization of the flow. A recommanded choice is between 0.01 and 0.1.

setMaxNumLoops

public void setMaxNumLoops(int numLoops)

A smooting process is stoped after the given number of loops have been performed cp start.

getMaxNumLoops

public int getMaxNumLoops()

A smooting process is stoped after this number of loops have been performed cp start.

setKeepBoundary

public void setKeepBoundary(boolean bKeepBoundary)

Enable/Disable moving of boundary vertices during smoothing.

getKeepBoundary

public boolean getKeepBoundary()

Get flag to enable/disable moving of boundary vertices during smoothing.

setKeepSelected

public void setKeepSelected(boolean bKeepSelected)

Enable/Disable moving of selected vertices during smoothing.

getKeepSelected

public boolean getKeepSelected()

Get flag to enable/disable moving of selected vertices during smoothing.

smoothingStep

public void smoothingStep()

Perform one step of smoothing using the actually choosen method and settings.

colorMapGray

public static java.awt.Color colorMapGray(double d)

Maps (0,1) onto a Color using only gray levels.

colorMap

public static java.awt.Color colorMap(double d)

Maps (0,1) onto a Color, starting from white to red.

scaleGeomByVolume

public static boolean scaleGeomByVolume(PgElementSet geom,
                                        double volume,
                                        double eps,
                                        int maxSteps)

Rescale geometry to have a given volume. Method iterativly approximates the given value. Rescaling stops when actual volume and given volume differ less than given eps or more than given maximal number of steps ave been performed.

Parameters:

geom - geometry to be scaled.

volume - volume the geometry willhave after rescaling.

eps - rescaling stops when actual volume and given volume differ less than eps.

maxSteps - stop when maximal number of steps have benn performed.

Returns:

false if maximal number of steps has been reached, true otherwise.

isRunning

public boolean isRunning()

Check whether smoothing prcess will be stopped.

Returns:

false, if the energy minimizer will stop (just shutting down regularely).

isStopped

public boolean isStopped()

Check whether smoothing prcess is currently NOT running a thread.

start

public void start()

Start smoothing in separate thread.

See Also:

stop()

stop

public void stop()

Stop smoothing in separate thread.

run

public void run()

Do energy minimization until m_numLoops are done or until a call of stop().

Specified by:

run in interface java.lang.Runnable