edu.umd.cs.jazz.util
Class ZMagBoundsFindFilter

java.lang.Object
  |
  +--edu.umd.cs.jazz.util.ZBoundsFindFilter
        |
        +--edu.umd.cs.jazz.util.ZMagBoundsFindFilter

All Implemented Interfaces:

java.io.Serializable, ZFindFilter

public class ZMagBoundsFindFilter

extends ZBoundsFindFilter

implements java.io.Serializable

ZMagBoundsFindFilter is a filter that accepts "terminal" nodes that overlap the specified bounds in global coordinates, but only if the object is within its visible magnification range. Terminal nodes are leaf nodes and group nodes that do not return true for "childrenFindable()".

Warning: Serialized and ZSerialized objects of this class will not be compatible with future Jazz releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Jazz. A future release of Jazz will provide support for long term persistence.

Author:

Ben Bederson

See Also:

Serialized Form

Constructor Summary

ZMagBoundsFindFilter(ZBounds bounds, double mag)
Create a new magnification bounds filter.

Method Summary

boolean	accept(ZNode node) Determine if the specified node is accepted by this filter.
boolean	childrenFindable(ZNode node) This method determines if the children of the specified node should be searched.

Methods inherited from class edu.umd.cs.jazz.util.ZBoundsFindFilter

getBounds

Methods inherited from class java.lang.Object

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

Constructor Detail

ZMagBoundsFindFilter

public ZMagBoundsFindFilter(ZBounds bounds,
                            double mag)

Create a new magnification bounds filter. This filter accepts "terminal" nodes whose bounds intersect the specified bounds, but only if the object is within its visible magnification range. Terminal nodes are leaf nodes and group nodes that do not "childrenFindable".

Parameters:

bounds - The bounds in global coordinates to search within.

mag - The magnification to use for filtering

Method Detail

accept

public boolean accept(ZNode node)

Determine if the specified node is accepted by this filter.

Overrides:

accept in class ZBoundsFindFilter

Parameters:

node - The node that is to be examined by this filter

Returns:

True if the node is accepted by the filter

childrenFindable

public boolean childrenFindable(ZNode node)

This method determines if the children of the specified node should be searched.

Overrides:

childrenFindable in class ZBoundsFindFilter

Parameters:

node - The node that is to be examined by this filter

Returns:

True if this node's children should be searched, or false otherwise.