samples.preview_new_graphdraw.iterablelayouts

Class InterpolatingIterableLayout

java.lang.Object

samples.preview_new_graphdraw.iter.IterableLayout

samples.preview_new_graphdraw.iterablelayouts.InterpolatingIterableLayout

All Implemented Interfaces:

LayoutEmitter

Direct Known Subclasses:

LinearInterpolatingLayout

public abstract class InterpolatingIterableLayout
extends IterableLayout

This abstract iterable layout interpolates between two different emitted layouts over K frames. Override by defining:

• What to do with vertices in start, but not end (at step i of K)
• What to do with vertices in end, but not start (...)
• What to do with edges in start, but not end (...)
• What to do with edges in end, but not start (...)
• Where to put a vertex in both start and end at step i (...)

Author:

danyelf

Field Summary

Fields

Modifier and Type	Field and Description
protected EmittedLayout	end
protected int	numFrames
protected EmittedLayout	start

Fields inherited from class samples.preview_new_graphdraw.iter.IterableLayout

currentLayout, returnableLayout

Constructor Summary

Constructors

Constructor and Description
InterpolatingIterableLayout(EmittedLayout end, int numFrames)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	calculate() Transforms currentLayout according to current layout algorithm.
void	initializeLocationsFromLayout(EmittedLayout inputLayout) Starts up this layout based on a previous layout.
protected abstract VisEdge	interpolateE(VisEdge startE, VisEdge endE, VisVertex f, VisVertex s, int thisFrame2, int numFrames2)
protected abstract VisVertex	interpolateV(VisVertex startV, VisVertex endV, int thisFrame2, int numFrames2)
boolean	isFinite() Says whether this algorthms' iterations will ever end.
boolean	iterationsAreDone() Gives the outlining algorithm a sense of how long to run.

Methods inherited from class samples.preview_new_graphdraw.iter.IterableLayout

advance, emit, getScreenSize, getVisEdge, getVisVertex

Methods inherited from class java.lang.Object

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

Field Detail

start

protected EmittedLayout start

end

protected EmittedLayout end

numFrames

protected final int numFrames

Constructor Detail

InterpolatingIterableLayout

public InterpolatingIterableLayout(EmittedLayout end,
                           int numFrames)

Method Detail

iterationsAreDone

public boolean iterationsAreDone()

Description copied from class: IterableLayout

Gives the outlining algorithm a sense of how long to run. The algorithm is responsible for setting its own thresholds. Note that this should return a meaningful value (probably "false") even before initialize has been called.

Specified by:

iterationsAreDone in class IterableLayout

isFinite

public boolean isFinite()

Description copied from class: IterableLayout

Says whether this algorthms' iterations will ever end. (If not, there's no real use to waiting.)

Specified by:

isFinite in class IterableLayout

calculate

protected void calculate()

Description copied from class: IterableLayout

Transforms currentLayout according to current layout algorithm. This may change the state of the currentLayout object.

Specified by:

calculate in class IterableLayout

initializeLocationsFromLayout

public void initializeLocationsFromLayout(EmittedLayout inputLayout)

Description copied from class: IterableLayout

Starts up this layout based on a previous layout. It is reasonable to assume that this method will be called only once. After this method is complete, a CURRENT LAYOUT should be defined with the current states of the vertices, and a RETURNABLE LAYOUT should be defined for emit() to return. In general, emit() will just return this copy of the layout stored in returnableLayout, so this method and advance() are both respon sible for advancing correctly.

Overrides:

initializeLocationsFromLayout in class IterableLayout

interpolateE

protected abstract VisEdge interpolateE(VisEdge startE,
                   VisEdge endE,
                   VisVertex f,
                   VisVertex s,
                   int thisFrame2,
                   int numFrames2)

Parameters:

startE -

endE -

thisFrame2 -

numFrames2 -

Returns:

interpolateV

protected abstract VisVertex interpolateV(VisVertex startV,
                     VisVertex endV,
                     int thisFrame2,
                     int numFrames2)

Parameters:

startV -

endV -

thisFrame2 -

numFrames2 -

Returns: