95 lines
2.6 KiB
Java
95 lines
2.6 KiB
Java
package btools.mapcreator;
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import java.io.File;
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import btools.util.DenseLongMap;
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import btools.util.TinyDenseLongMap;
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/**
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* WayCutter does 2 step in map-processing:
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*
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* - cut the way file into 45*30 - pieces
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* - enrich ways with relation information
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*
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* @author ab
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*/
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public class WayCutter extends MapCreatorBase
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{
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private DenseLongMap tileIndexMap;
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public static void main(String[] args) throws Exception
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{
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System.out.println("*** WayCutter: Soft-Cut way-data into tiles");
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if (args.length != 3)
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{
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System.out.println("usage: java WayCutter <node-tiles-in> <way-file-in> <way-tiles-out>" );
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return;
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}
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new WayCutter().process( new File( args[0] ), new File( args[1] ), new File( args[2] ) );
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}
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public void process( File nodeTilesIn, File wayFileIn, File wayTilesOut ) throws Exception
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{
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this.outTileDir = wayTilesOut;
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// *** read all nodes into tileIndexMap
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tileIndexMap = Boolean.getBoolean( "useDenseMaps" ) ? new DenseLongMap() : new TinyDenseLongMap();
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new NodeIterator( this, false ).processDir( nodeTilesIn, ".tlf" );
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// *** finally process the way-file, cutting into pieces
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new WayIterator( this, true ).processFile( wayFileIn );
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closeTileOutStreams();
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}
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@Override
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public void nextNode( NodeData n ) throws Exception
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{
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tileIndexMap.put( n.nid, getTileIndex( n.ilon, n.ilat ) );
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}
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@Override
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public void nextWay( WayData data ) throws Exception
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{
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long waytileset = 0;
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int nnodes = data.nodes.size();
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// determine the tile-index for each node
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for (int i=0; i<nnodes; i++ )
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{
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int tileIndex = tileIndexMap.getInt( data.nodes.get(i) );
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if ( tileIndex != -1 )
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{
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waytileset |= ( 1L << tileIndex );
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}
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}
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// now write way to all tiles hit
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for( int tileIndex=0; tileIndex<54; tileIndex++ )
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{
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if ( ( waytileset & ( 1L << tileIndex ) ) == 0 )
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{
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continue;
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}
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data.writeTo( getOutStreamForTile( tileIndex ) );
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}
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}
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private int getTileIndex( int ilon, int ilat )
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{
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int lon = ilon / 45000000;
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int lat = ilat / 30000000;
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if ( lon < 0 || lon > 7 || lat < 0 || lat > 5 ) throw new IllegalArgumentException( "illegal pos: " + ilon + "," + ilat );
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return lon*6 + lat;
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}
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protected String getNameForTile( int tileIndex )
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{
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int lon = (tileIndex / 6 ) * 45 - 180;
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int lat = (tileIndex % 6 ) * 30 - 90;
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String slon = lon < 0 ? "W" + (-lon) : "E" + lon;
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String slat = lat < 0 ? "S" + (-lat) : "N" + lat;
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return slon + "_" + slat + ".wtl";
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}
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}
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