115 lines
2.2 KiB
Java
115 lines
2.2 KiB
Java
/**
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* Container for link between two Osm nodes (pre-pocessor version)
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*
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* @author ab
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*/
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package btools.mapcreator;
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public class OsmLinkP
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{
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/**
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* The description bitmap is mainly the way description
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* used to calculate the costfactor
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*/
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public byte[] descriptionBitmap;
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/**
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* The target is either the next link or the target node
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*/
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private OsmNodeP sourceNode;
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private OsmNodeP targetNode;
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private OsmLinkP previous;
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private OsmLinkP next;
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public OsmLinkP( OsmNodeP source, OsmNodeP target )
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{
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sourceNode = source;
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targetNode = target;
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}
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public final boolean counterLinkWritten( )
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{
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return descriptionBitmap == null;
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}
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/**
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* Set the relevant next-pointer for the given source
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*/
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public void setNext( OsmLinkP link, OsmNodeP source )
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{
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if ( sourceNode == source )
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{
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next = link;
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}
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else if ( targetNode == source )
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{
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previous = link;
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}
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else
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{
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throw new IllegalArgumentException( "internal error: setNext: unknown source" );
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}
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}
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/**
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* Get the relevant next-pointer for the given source
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*/
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public OsmLinkP getNext( OsmNodeP source )
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{
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if ( sourceNode == source )
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{
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return next;
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}
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else if ( targetNode == source )
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{
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return previous;
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}
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else
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{
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throw new IllegalArgumentException( "internal error: gextNext: unknown source" );
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}
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}
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/**
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* Get the relevant target-node for the given source
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*/
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public OsmNodeP getTarget( OsmNodeP source )
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{
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if ( sourceNode == source )
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{
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return targetNode;
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}
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else if ( targetNode == source )
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{
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return sourceNode;
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}
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else
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{
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throw new IllegalArgumentException( "internal error: getTarget: unknown source" );
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}
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}
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/**
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* Check if reverse link for the given source
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*/
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public boolean isReverse( OsmNodeP source )
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{
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if ( sourceNode == source )
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{
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return false;
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}
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else if ( targetNode == source )
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{
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return true;
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}
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else
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{
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throw new IllegalArgumentException( "internal error: isReverse: unknown source" );
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}
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}
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}
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