com.google.uzaygezen.core

Class ZoomingSpaceVisitorAdapter

java.lang.Object

com.google.uzaygezen.core.ZoomingSpaceVisitorAdapter

All Implemented Interfaces:

ZoomingNavigator

public class ZoomingSpaceVisitorAdapter
extends Object
implements ZoomingNavigator

Adapts the user friendly SpaceVisitor to serve as a ZoomingNavigator.

Author:

Daniel Aioanei

Constructor Summary

Constructors

Constructor and Description
ZoomingSpaceVisitorAdapter(IndexCalculator curve, SpaceVisitor visitor)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	visit(int level, BitVector index, BitVector[] p)

Methods inherited from class java.lang.Object

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

Constructor Detail

ZoomingSpaceVisitorAdapter

public ZoomingSpaceVisitorAdapter(IndexCalculator curve,
                          SpaceVisitor visitor)

Parameters:

curve - space filling curve

visitor - adaptee

Method Detail

visit

public boolean visit(int level,
            BitVector index,
            BitVector[] p)

Specified by:

visit in interface ZoomingNavigator

Parameters:

level - 0 <= level <= mMax. When level==mMax all coordinates are zero.

index - the index bits calculated from level mMax - 1 down to to level; the remaining low order bits are guaranteed to be clear. This parameter is owned by the caller and must not be modified by ZoomingNavigator implementations.

p - only bits from max(i, mMax - m[i]) (inclusive) to mMax (exclusive) are meaningful, and the other bits are guaranteed to be zero. This parameter is fully owned by the caller and it must not be either modified, or expected to stay the same over time.

Returns:

true if we want to see the children; false otherwise. At the deepest level the return value is normally ignored since there are no more children to show.