visad.bom
Class DiscoverableZoom

java.lang.Object
  visad.bom.DiscoverableZoom

All Implemented Interfaces:

EventListener, ControlListener

public class DiscoverableZoom
extends Object
implements ControlListener

DiscoverableZoom is the VisAD class for discoverable zoom of displayed data.

Constructor Summary

DiscoverableZoom()

Method Summary

void

controlChanged(ControlEvent e) send a ControlEvent to this ControlListener

void

setRenderers(DataRenderer[] rs, float distance) the DataRenderers in the rs array are assumed to each link to a Tuple data object that includes Real fields for Latitude and Longitude, and that Latitude and Longitude are mapped to spatial DisplayRealTypes; the DataRenderers in rs are enabled or disabled to maintain a roughly constant spacing among their visible depictions; distance is the scale for distance; in order to work, this DiscoverableZoom must be added as a Control Listener to the ProjectionControl of the DisplayImpl linked to the DataRenderer array rs; see CollectiveBarbManipulation.java for an example of use

Methods inherited from class java.lang.Object

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

Constructor Detail

DiscoverableZoom

public DiscoverableZoom()

Method Detail

setRenderers

public void setRenderers(DataRenderer[] rs,
                         float distance)
                  throws VisADException,
                         RemoteException

the DataRenderers in the rs array are assumed to each link to a Tuple data object that includes Real fields for Latitude and Longitude, and that Latitude and Longitude are mapped to spatial DisplayRealTypes; the DataRenderers in rs are enabled or disabled to maintain a roughly constant spacing among their visible depictions; distance is the scale for distance; in order to work, this DiscoverableZoom must be added as a Control Listener to the ProjectionControl of the DisplayImpl linked to the DataRenderer array rs; see CollectiveBarbManipulation.java for an example of use

Throws:

VisADException

RemoteException

controlChanged

public void controlChanged(ControlEvent e)
                    throws VisADException,
                           RemoteException

Description copied from interface: ControlListener

send a ControlEvent to this ControlListener

Specified by:

controlChanged in interface ControlListener

Throws:

VisADException

RemoteException