vgp.vector.vectorField
Class PjVectorField

java.lang.Object
  |
  +--jv.object.PsObject
        |
        +--jv.project.PjProject
              |
              +--jv.loader.PjImportModel
                    |
                    +--vgp.vector.vectorField.PjVectorField

All Implemented Interfaces:

java.awt.event.ActionListener, java.lang.Cloneable, java.util.EventListener, PsTimeListenerIf, PsUpdateIf, PvPickListenerIf, java.lang.Runnable, java.io.Serializable

public class PjVectorField

extends PjImportModel

implements java.lang.Runnable, java.awt.event.ActionListener

Project Vector Field Visualization and Geodesic Runge-Kutta uses PjImportModel to load models from file. Various models may be loaded and are extended by a (more or less) random tangential vector field.

Version:

29. 8.99, 1.00 created

Author:

Eike Preuß

See Also:

PjImportModel, Serialized Form

Field Summary

static int	GEODESIC Geodesic completion.
static int	GEODESIC2 Geodesic translation along half angle.
static int	GEODESIC3 Geodesic translation dependent on evaluation point (continous).
protected PdBaryDir[][]	m_altvec Calculated vector representations.
protected PdBary	m_bary Initial barycentric point for integral line m_poly.
protected PuInteger	m_discr Discretization of the integral line.
protected int	m_elemInd Global element index of initial point for integral line m_poly.
protected boolean	m_fast If fast is on, an euler-method is used for integration and not a 4th-order runge-kutta.
protected PgElementSet	m_geom The loaded model.
protected PjImportModel	m_import Is used to load models from the net or local disk.
protected PuDouble	m_length Length of the integral line.
protected java.lang.Thread	m_LIC Thread that executes the LIC texture calculation.
protected java.awt.Button	m_LICButton Button that starts the LIC texture calculation.
protected PuInteger	m_LICSize Size of quadratic LIC texture image.
protected int	m_method Method used in calculateRepresentations.
protected PnGeodesicRK	m_ode Geodesic Runge-Kutta method that is used to get integral lines
protected int[]	m_origelem Global element indices of elements that define the vectors in m_origvec.
protected int[]	m_origlocvertind Local vertex index of base vertex of vector m_origvec in element m_origelem.
protected PdBaryDir[]	m_origvec Original tangential vectors at vertices. size: geom.getNumVertices().
protected PgPolygon	m_poly Integral line that is computed by a runge-kutta-method.
protected java.awt.Label	m_time Time it took to calculate LIC texture.
protected PgVectorField	m_vec Visual 3D-vector field that is the 3D-representation of m_origvec.
static int	PROJECTION Is used by method calculateRepresentations.

Fields inherited from class jv.loader.PjImportModel

CONFIRM_CANCEL, CONFIRM_CLICKED, CONFIRM_OK, DIR_LIST, FULL_INFO_PANEL, m_baseDir, m_category, m_confirm, m_defBaseDir, m_defCategory, m_defFileName, m_fileName, m_fullFileName, m_geomList, m_infoPanelType, m_numModels, m_parentProject, SMALL_INFO_PANEL

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

PjVectorField()
If (this.instanceOf("PjVectorField")) it calls init-method.

Method Summary

void	actionPerformed(java.awt.event.ActionEvent event) Starts a new thread that calculates the LIC texture.
void	calculateCurve() Calculates the integral curve with initial values internally given.
void	calculateRepresentations() Calculates the representations of vectors at every vertexstar.
void	calculateVectorField() Calculates (pseudo) random vector field.
void	computeLIC()
void	init() Initialize and reset project, stops the running animation if any.
boolean	load() Gets geometry from PjImportModel and then triangulates, updates the number of elements, gets a vector field and fits that all in the display.
boolean	load(java.lang.String fileName) Loads geometry via PjImportModel and then calls load().
void	pickInitial(PvPickEvent pos) Initiates calculation of an integral line that starts at picked position.
void	run() Gets an apropriate Runge-Kutta class and initiates LIC calculation element by element.
void	setFast(boolean flag) Sets integration method to euler-mode or 4th-order Runge-Kutta mode.
void	setMethod(int method) Sets method used in calculateRepresentations.
void	start() Load geometry file if file name has been specified.
boolean	update(java.lang.Object event) Event handling method in the update mechanism.

Methods inherited from class jv.loader.PjImportModel

getBaseDir, getCategory, getConfirm, getFileName, getInfoPanel, setBase, setCategory, setConfirm, setFileName, setParentProject, setTypeOfInfoPanel

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, pickVertex, removeDisplay, removeGeometries, removeGeometry, selectDisplay, selectGeometry, setAnimation, setDisplay, setEnabledAutoFit, setParameter, setTime, setViewer, stop, unmarkVertices

Methods inherited from class jv.object.PsObject

addInspector, addUpdateListener, clearTag, clone, clone, clone, copy, getFather, 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_import

protected PjImportModel m_import

Is used to load models from the net or local disk.

m_geom

protected PgElementSet m_geom

The loaded model.

m_length

protected PuDouble m_length

Length of the integral line.

m_discr

protected PuInteger m_discr

Discretization of the integral line.

m_altvec

protected PdBaryDir[][] m_altvec

Calculated vector representations.

m_method

protected int m_method

Method used in calculateRepresentations.

See Also:

PROJECTION, GEODESIC, GEODESIC2, GEODESIC3

PROJECTION

public static final int PROJECTION

Is used by method calculateRepresentations.

GEODESIC

public static final int GEODESIC

Geodesic completion. Is used by method calculateRepresentations.

GEODESIC2

public static final int GEODESIC2

Geodesic translation along half angle. Is used by method calculateRepresentations.

GEODESIC3

public static final int GEODESIC3

Geodesic translation dependent on evaluation point (continous). Is used by method calculateRepresentations.

m_LICSize

protected PuInteger m_LICSize

Size of quadratic LIC texture image.

m_origvec

protected PdBaryDir[] m_origvec

Original tangential vectors at vertices. size: geom.getNumVertices().

m_origelem

protected int[] m_origelem

Global element indices of elements that define the vectors in m_origvec.

m_origlocvertind

protected int[] m_origlocvertind

Local vertex index of base vertex of vector m_origvec in element m_origelem.

m_poly

protected PgPolygon m_poly

Integral line that is computed by a runge-kutta-method.

m_elemInd

protected int m_elemInd

Global element index of initial point for integral line m_poly.

m_bary

protected PdBary m_bary

Initial barycentric point for integral line m_poly.

m_vec

protected PgVectorField m_vec

Visual 3D-vector field that is the 3D-representation of m_origvec.

m_LIC

protected java.lang.Thread m_LIC

Thread that executes the LIC texture calculation.

m_LICButton

protected java.awt.Button m_LICButton

Button that starts the LIC texture calculation.

m_fast

protected boolean m_fast

If fast is on, an euler-method is used for integration and not a 4th-order runge-kutta.

m_ode

protected PnGeodesicRK m_ode

Geodesic Runge-Kutta method that is used to get integral lines

m_time

protected java.awt.Label m_time

Time it took to calculate LIC texture.

Constructor Detail

PjVectorField

public PjVectorField()

If (this.instanceOf("PjVectorField")) it calls init-method.

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 PjImportModel

start

public void start()

Description copied from class: PjImportModel

Load geometry file if file name has been specified. Otherwise do nothing.

Overrides:

start in class PjImportModel

Following copied from class: jv.project.PjProject

See Also:

PvViewerIf.start(), #isEnabledAutoFit(boolean)

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.

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)

setMethod

public void setMethod(int method)

Sets method used in calculateRepresentations.

See Also:

PROJECTION, GEODESIC, GEODESIC2, GEODESIC3

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent event)

Starts a new thread that calculates the LIC texture.

Specified by:

actionPerformed in interface java.awt.event.ActionListener

See Also:

run()

calculateVectorField

public void calculateVectorField()

Calculates (pseudo) random vector field.

calculateRepresentations

public void calculateRepresentations()

Calculates the representations of vectors at every vertexstar. If current method in m_method is GEODESIC3,i.e. continous geodesic translation, this calculation is done in the runge-kutta class.

See Also:

PnTranslationRK, PwBary.getGeodRepresentation(jv.geom.PgElementSet, int, jv.vecmath.PdBaryDir, int, jv.vecmath.PiVector, jv.vecmath.PiVector), PwBary.getTransRepresentation(jv.geom.PgElementSet, int, jv.vecmath.PdBaryDir, int, jv.vecmath.PiVector, jv.vecmath.PiVector), PwBary.getProjRepresentation(jv.geom.PgElementSet, int, jv.vecmath.PdBaryDir, int, jv.vecmath.PiVector, jv.vecmath.PiVector)

calculateCurve

public void calculateCurve()

Calculates the integral curve with initial values internally given.

pickInitial

public void pickInitial(PvPickEvent pos)

Initiates calculation of an integral line that starts at picked position.

Overrides:

pickInitial in class PjProject

See Also:

calculateCurve()

setFast

public void setFast(boolean flag)

Sets integration method to euler-mode or 4th-order Runge-Kutta mode.

Parameters:

flag - true: euler; false: 4th-order runge-kutta

load

public boolean load(java.lang.String fileName)

Loads geometry via PjImportModel and then calls load().

Overrides:

load in class PjImportModel

See Also:

load()

load

public boolean load()

Gets geometry from PjImportModel and then triangulates, updates the number of elements, gets a vector field and fits that all in the display.

computeLIC

public void computeLIC()

run

public void run()

Gets an apropriate Runge-Kutta class and initiates LIC calculation element by element.

Specified by:

run in interface java.lang.Runnable

See Also:

PnLIC, PnVertexRK, PnTranslationRK