prefuse.action.animate
Class PolarLocationAnimator

java.lang.Object
  prefuse.activity.Activity
      prefuse.action.Action
          prefuse.action.GroupAction
              prefuse.action.ItemAction
                  prefuse.action.animate.PolarLocationAnimator

public class PolarLocationAnimator
extends ItemAction

Animator that interpolates between starting and ending display locations by linearly interpolating between polar coordinates.

Author:

jeffrey heer

Field Summary

Fields inherited from class prefuse.action.ItemAction

m_predicate

Fields inherited from class prefuse.action.GroupAction

m_group

Fields inherited from class prefuse.action.Action

m_vis

Fields inherited from class prefuse.activity.Activity

DEFAULT_STEP_TIME, INFINITY

Constructor Summary

PolarLocationAnimator()
Creates a PolarLocationAnimator that operates on all VisualItems within a Visualization.

PolarLocationAnimator(java.lang.String group)
Creates a PolarLocationAnimator that operates on VisualItems within the specified group.

PolarLocationAnimator(java.lang.String group, java.lang.String linearGroup)
Creates a PolarLocationAnimator that operates on VisualItems within the specified group, while using regular linear interpolation (in Cartesian (x,y) coordinates rather than polar coordinates) for items also contained within the specified linearGroup.

Method Summary

void	process(VisualItem item, double frac) Processes an individual item.
void	run(double frac) Runs this Action, triggering whatever processing this Action performs.

Methods inherited from class prefuse.action.ItemAction

getFilterPredicate, setFilterPredicate

Methods inherited from class prefuse.action.GroupAction

getGroup, setGroup

Methods inherited from class prefuse.action.Action

getVisualization, run, setVisualization

Methods inherited from class prefuse.activity.Activity

addActivityListener, alwaysRunAfter, cancel, fireActivityCancelled, fireActivityFinished, fireActivityScheduled, fireActivityStarted, fireActivityStepped, getDuration, getNextTime, getPace, getPacingFunction, getStartTime, getStepTime, getStopTime, isEnabled, isRunning, isScheduled, removeActivityListener, run, runAfter, runAt, setDuration, setEnabled, setPacingFunction, setStartTime, setStepTime

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PolarLocationAnimator

public PolarLocationAnimator()

Creates a PolarLocationAnimator that operates on all VisualItems within a Visualization.

PolarLocationAnimator

public PolarLocationAnimator(java.lang.String group)

Creates a PolarLocationAnimator that operates on VisualItems within the specified group.

Parameters:

group - the data group to process

PolarLocationAnimator

public PolarLocationAnimator(java.lang.String group,
                             java.lang.String linearGroup)

Creates a PolarLocationAnimator that operates on VisualItems within the specified group, while using regular linear interpolation (in Cartesian (x,y) coordinates rather than polar coordinates) for items also contained within the specified linearGroup.

Parameters:

group - the data group to process

linearGroup - the group of items that should be interpolated in Cartesian (standard x,y) coordinates rather than polar coordinates. Note that this animator will not process any items in linearGroup that are not also in group.

Method Detail

run

public void run(double frac)

Description copied from class: Action

Runs this Action, triggering whatever processing this Action performs. Subclass this method to create custom Actions.

Overrides:

run in class ItemAction

Parameters:

frac - the fraction of this Action's duration that has elapsed.

See Also:

Action.run(double)

process

public void process(VisualItem item,
                    double frac)

Description copied from class: ItemAction

Processes an individual item.

Specified by:

process in class ItemAction

Parameters:

item - the VisualItem to process

frac - the fraction of elapsed duration time

See Also:

ItemAction.process(prefuse.visual.VisualItem, double)