uk.ac.starlink.topcat.plot

Class XYZoomRegion

java.lang.Object

uk.ac.starlink.topcat.plot.ZoomRegion

uk.ac.starlink.topcat.plot.XYZoomRegion

public abstract class XYZoomRegion
extends ZoomRegion

ZoomRegion for zooming in two dimensions (X-Y). A drag in both positive graphics coordinate directions (down and right) is a zoom in (magnifying), and a drag in both negative directions (up and left) is a zoom out.

Since:

28 Mar 2006

Author:

Mark Taylor

See Also:

Zoomer

Constructor Summary

Constructors

Constructor and Description
XYZoomRegion(Rectangle display) Constructs a new XY zoom region.

Method Summary

Modifier and Type	Method and Description
ZoomDrag	createDrag(Component comp, Point start) Returns a new ZoomDrag object appropriate for this region.

Methods inherited from class uk.ac.starlink.topcat.plot.ZoomRegion

getCursor, getDisplay, getTarget, setCursor, setDisplay, setTarget, zoomed

Methods inherited from class java.lang.Object

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

Constructor Detail

XYZoomRegion

public XYZoomRegion(Rectangle display)

Constructs a new XY zoom region.

Parameters:

display - rectangle defining the region for both dragging and visual feedback

Method Detail

createDrag

public ZoomDrag createDrag(Component comp,
                           Point start)

Description copied from class: ZoomRegion

Returns a new ZoomDrag object appropriate for this region.

Specified by:

createDrag in class ZoomRegion

Parameters:

comp - component on which the drag is taking place

start - start point for the drag

Returns:

new drag object