99 lines
2.7 KiB
Java
99 lines
2.7 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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* <p>
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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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private DenseLongMap tileIndexMap;
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public static void main(String[] args) throws Exception {
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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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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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init(wayTilesOut);
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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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finish();
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}
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public void init(File wayTilesOut) throws Exception {
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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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}
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public void finish() throws Exception {
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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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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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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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int tileIndex = tileIndexMap.getInt(data.nodes.get(i));
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if (tileIndex != -1) {
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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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if ((waytileset & (1L << tileIndex)) == 0) {
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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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public int getTileIndexForNid(long nid) {
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return tileIndexMap.getInt(nid);
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}
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private int getTileIndex(int ilon, int ilat) {
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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)
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throw new IllegalArgumentException("illegal pos: " + ilon + "," + ilat);
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return lon * 6 + lat;
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}
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public String getNameForTile(int tileIndex) {
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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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