samples.preview_new_graphdraw.transform
Class SlightMarginTransformer

java.lang.Object
  samples.preview_new_graphdraw.transform.SlightMarginTransformer

All Implemented Interfaces:

LayoutTransformer

public class SlightMarginTransformer
extends Object
implements LayoutTransformer

This resizer ensures that there's a little space at the margins. This is done by percentage rather than by absolute numbers. created March 20, 2004

Author:

danyelf

Constructor Summary

SlightMarginTransformer()
Creates an instance of a slight margin transformer.

SlightMarginTransformer(double percentage)
Creates an instance of a slight margin transformer with the given percentage.

Method Summary

void	adjustSize(Dimension d) Adjusts this transformer to be working in this size a space
Coordinates	invert(Coordinates in) This does the *reverse* of the trasformation, for a given point.
boolean	supportsInvert() Most functions should support invert.
EmittedLayout	transform(EmittedLayout el) Transforms the given layout.

Methods inherited from class java.lang.Object

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

Constructor Detail

SlightMarginTransformer

public SlightMarginTransformer()

Creates an instance of a slight margin transformer. By default, starts at 90% of size (= 5% margins on all sides)

SlightMarginTransformer

public SlightMarginTransformer(double percentage)

Creates an instance of a slight margin transformer with the given percentage.

Parameters:

percentage - the value (should be between 0 and 1; 1 means no margin; 0.5 means the graph is half the size of its window).

Method Detail

transform

public EmittedLayout transform(EmittedLayout el)

Description copied from interface: LayoutTransformer

Transforms the given layout. May (but needn't) return the same layout object, albeit somewhat stomped-upon.

Specified by:

transform in interface LayoutTransformer

See Also:

LayoutTransformer.transform(samples.preview_new_graphdraw.EmittedLayout)

adjustSize

public void adjustSize(Dimension d)

Description copied from interface: LayoutTransformer

Adjusts this transformer to be working in this size a space

Specified by:

adjustSize in interface LayoutTransformer

See Also:

LayoutTransformer.adjustSize(java.awt.Dimension)

supportsInvert

public boolean supportsInvert()

Description copied from interface: LayoutTransformer

Most functions should support invert. If your layout transformer can't be inverted, this should return false. Note that having even one layout be un-invertible makes the whole pipeline un-invertble.

Specified by:

supportsInvert in interface LayoutTransformer

Returns:

true if the layout can be inverted.

See Also:

LayoutTransformer.supportsInvert()

invert

public Coordinates invert(Coordinates in)

Description copied from interface: LayoutTransformer

This does the *reverse* of the trasformation, for a given point. This should be quite fast, as it's done in interactive time (e.g. while a user is dragging around a vertex).

Specified by:

invert in interface LayoutTransformer

See Also:

LayoutTransformer.invert(samples.preview_new_graphdraw.Coordinates)