vgp.tutor.vectorField
Class PjVectorField

java.lang.Object
  |
  +--jv.object.PsObject
        |
        +--jv.project.PjProject
              |
              +--vgp.tutor.vectorField.PjVectorField

All Implemented Interfaces:

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

public class PjVectorField

extends PjProject

Tutorial project on vector fields. Sample vector field is gradient or rotation of a potential on a square grid. User may interactively modify potential by marking or unmarking vertices.

Version:

18.09.99, 1.00 created (kp).

Author:

Konrad Polthier

See Also:

PgVectorField, Serialized Form

Field Summary

static int	GRADIENT Vectorfield is gradient of potential.
protected java.util.Vector	m_center Centers of potential.
protected double	m_defRadius Default value of radius of influence of each potential.
protected int	m_fieldType Type of vector field.
protected PgDomain	m_geom Base geometry is a rectangular grid which carries the vector field.
protected PuDouble	m_radius Radius of influence of each potential.
protected PgVectorField	m_vf Vector field, associated with base geometry.
static int	ROTATION Vectorfield is J*gradient of potential.

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()

Method Summary

void	computeVectorfield()
int	getFieldType()
void	init() Initialize and reset project, stops the running animation if any.
void	setFieldType(int type)
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, getViewer, hasAnimation, hasDisplay, isEnabledAutoFit, markVertices, pickDisplay, pickInitial, 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, getInfoPanel, 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

GRADIENT

public static final int GRADIENT

Vectorfield is gradient of potential.

ROTATION

public static final int ROTATION

Vectorfield is J*gradient of potential.

m_geom

protected PgDomain m_geom

Base geometry is a rectangular grid which carries the vector field.

m_vf

protected PgVectorField m_vf

Vector field, associated with base geometry.

m_fieldType

protected int m_fieldType

Type of vector field. Possible values are GRADIENT, ROTATION etc.

m_center

protected java.util.Vector m_center

Centers of potential.

m_radius

protected PuDouble m_radius

Radius of influence of each potential.

m_defRadius

protected double m_defRadius

Default value of radius of influence of each potential.

Constructor Detail

PjVectorField

public PjVectorField()

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

Following copied from class: jv.project.PjProject

See Also:

PvViewerIf.start(), #isEnabledAutoFit(boolean)

update

public boolean update(java.lang.Object event)

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

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)

computeVectorfield

public void computeVectorfield()

getFieldType

public int getFieldType()

setFieldType

public void setFieldType(int type)