edu.uci.ics.jung.visualization.control
Class ViewScalingControl

java.lang.Object
  edu.uci.ics.jung.visualization.control.ViewScalingControl

All Implemented Interfaces:

ScalingControl

public class ViewScalingControl
extends Object
implements ScalingControl

ViewScalingGraphMouse applies a scaling transform to the View of the graph. This causes all elements of the graph to grow larger or smaller. ViewScalingGraphMouse, by default, is activated by the MouseWheel when the control key is pressed. The control key modifier can be overridden in the contstructor.

Author:

Tom Nelson

Constructor Summary

ViewScalingControl()

Method Summary

void	scale(VisualizationServer vv, float amount, Point2D from) zoom the display in or out, depending on the direction of the mouse wheel motion.

Methods inherited from class java.lang.Object

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

Constructor Detail

ViewScalingControl

public ViewScalingControl()

Method Detail

scale

public void scale(VisualizationServer vv,
                  float amount,
                  Point2D from)

zoom the display in or out, depending on the direction of the mouse wheel motion.

Specified by:

scale in interface ScalingControl

Parameters:

vv - the VisualizationViewer

amount - how much to adjust scale by

from - where to adjust scale from