initial commit of BRouter Version 0.98

2014-01-18 15:29:05 +01:00 · 2014-01-18 15:29:05 +01:00 · 91e62f1164
commit 91e62f1164
parent e4ae2b37d3
120 changed files with 15382 additions and 0 deletions
--- a/brouter-map-creator/src/main/java/btools/mapcreator/WayCutter.java
+++ b/brouter-map-creator/src/main/java/btools/mapcreator/WayCutter.java
@ -0,0 +1,127 @@
+package btools.mapcreator;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.EOFException;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.util.HashMap;
+
+import btools.util.*;
+
+/**
+ * WayCutter does 2 step in map-processing:
+ *
+ * - cut the way file into 45*30 - pieces
+ * - enrich ways with relation information
+ *
+ * @author ab
+ */
+public class WayCutter extends MapCreatorBase
+{
+  private CompactLongSet cyclewayset;
+  private DenseLongMap tileIndexMap;
+
+  public static void main(String[] args) throws Exception
+  {
+    System.out.println("*** WayCutter: Soft-Cut way-data into tiles");
+    if (args.length != 4)
+    {
+      System.out.println("usage: java WayCutter <node-tiles-in> <way-file-in> <way-tiles-out> <relation-file>" );
+
+      return;
+    }
+    new WayCutter().process( new File( args[0] ), new File( args[1] ), new File( args[2] ), new File( args[3] ) );
+  }
+
+  public void process( File nodeTilesIn, File wayFileIn, File wayTilesOut, File relationFileIn ) throws Exception
+  {
+    this.outTileDir = wayTilesOut;
+
+    // *** read the relation file into a set (currently cycleway processing only)
+    cyclewayset = new CompactLongSet();
+    DataInputStream dis = createInStream( relationFileIn );
+    try
+    {
+      for(;;)
+      {
+        long wid = readId( dis );
+        if ( !cyclewayset.contains( wid ) ) cyclewayset.add( wid );
+      }
+    }
+    catch( EOFException eof )
+    {
+      dis.close();
+    }
+    System.out.println( "marked cycleways: " + cyclewayset.size() );
+
+
+    // *** read all nodes into tileIndexMap
+    tileIndexMap = Boolean.getBoolean( "useDenseMaps" ) ? new DenseLongMap( 6 ) : new TinyDenseLongMap();
+    new NodeIterator( this, false ).processDir( nodeTilesIn, ".tlf" );
+
+    // *** finally process the way-file, cutting into pieces
+    new WayIterator( this, true ).processFile( wayFileIn );
+    closeTileOutStreams();
+  }
+
+  @Override
+  public void nextNode( NodeData n ) throws Exception
+  {
+    tileIndexMap.put( n.nid, getTileIndex( n.ilon, n.ilat ) );
+  }
+
+  @Override
+  public void nextWay( WayData data ) throws Exception
+  {
+    // propagate the cycleway-bit
+    if ( cyclewayset.contains( data.wid ) )
+    {
+      data.description |= 2;
+    }
+
+    long waytileset = 0;
+    int nnodes = data.nodes.size();
+
+    // determine the tile-index for each node
+    for (int i=0; i<nnodes; i++ )
+    {
+      int tileIndex = tileIndexMap.getInt( data.nodes.get(i) );
+      if ( tileIndex != -1 )
+      {
+        waytileset |= ( 1L << tileIndex );
+      }
+    }
+
+    // now write way to all tiles hit
+    for( int tileIndex=0; tileIndex<54; tileIndex++ )
+    {
+      if ( ( waytileset & ( 1L << tileIndex ) ) == 0 )
+      {
+        continue;
+      }
+      data.writeTo( getOutStreamForTile( tileIndex ) );
+    }
+  }
+
+  private int getTileIndex( int ilon, int ilat )
+  {
+     int lon = ilon / 45000000;
+     int lat = ilat / 30000000;
+     if ( lon < 0 || lon > 7 || lat < 0 || lat > 5 ) throw new IllegalArgumentException( "illegal pos: " + ilon + "," + ilat );
+     return lon*6 + lat;
+  }
+
+  protected String getNameForTile( int tileIndex )
+  {
+    int lon = (tileIndex / 6 ) * 45 - 180;
+    int lat = (tileIndex % 6 ) * 30 - 90;
+    String slon = lon < 0 ? "W" + (-lon) : "E" + lon;
+    String slat = lat < 0 ? "S" + (-lat) : "N" + lat;
+    return slon + "_" + slat + ".wtl";
+  }
+
+}