private void start(CmdArgs args) {
String action = args.get("action", "").toLowerCase();
args.put("graph.location", "./graph-cache");
if (action.equals("import")) {
String vehicle = args.get("vehicle", "car").toLowerCase();
args.put("graph.flagEncoders", vehicle);
args.put("osmreader.osm", args.get("datasource", ""));
// standard should be to remove disconnected islands
args.put("prepare.minNetworkSize", 200);
args.put("prepare.minOneWayNetworkSize", 200);
GraphHopper hopper = new GraphHopper().init(args);
hopper.setCHEnable(false);
hopper.importOrLoad();
} else if (action.equals("match")) {
GraphHopper hopper = new GraphHopper().init(args);
hopper.setCHEnable(false);
logger.info("loading graph from cache");
hopper.load("./graph-cache");
FlagEncoder firstEncoder = hopper.getEncodingManager().fetchEdgeEncoders().get(0);
GraphHopperStorage graph = hopper.getGraphHopperStorage();
int gpxAccuracy = args.getInt("gpxAccuracy", 15);
String instructions = args.get("instructions", "");
logger.info("Setup lookup index. Accuracy filter is at " + gpxAccuracy + "m");
LocationIndexMatch locationIndex =
new LocationIndexMatch(graph, (LocationIndexTree) hopper.getLocationIndex(), gpxAccuracy);
MapMatching mapMatching = new MapMatching(graph, locationIndex, firstEncoder);
mapMatching.setSeparatedSearchDistance(args.getInt("separatedSearchDistance", 500));
mapMatching.setMaxNodesToVisit(args.getInt("maxNodesToVisit", 1000));
mapMatching.setForceRepair(args.getBool("forceRepair", false));
// do the actual matching, get the GPX entries from a file or via stream
String gpxLocation = args.get("gpx", "");
File[] files = getFiles(gpxLocation);
logger.info("Now processing " + files.length + " files");
StopWatch importSW = new StopWatch();
StopWatch matchSW = new StopWatch();
Translation tr = new TranslationMap().doImport().get(instructions);
for (File gpxFile : files) {
try {
importSW.start();
List<GPXEntry> inputGPXEntries =
new GPXFile().doImport(gpxFile.getAbsolutePath()).getEntries();
importSW.stop();
matchSW.start();
MatchResult mr = mapMatching.doWork(inputGPXEntries);
matchSW.stop();
System.out.println(gpxFile);
System.out.println(
"\tmatches:\t"
+ mr.getEdgeMatches().size()
+ ", gps entries:"
+ inputGPXEntries.size());
System.out.println(
"\tgpx length:\t"
+ (float) mr.getGpxEntriesLength()
+ " vs "
+ (float) mr.getMatchLength());
System.out.println(
"\tgpx time:\t"
+ mr.getGpxEntriesMillis() / 1000f
+ " vs "
+ mr.getMatchMillis() / 1000f);
String outFile = gpxFile.getAbsolutePath() + ".res.gpx";
System.out.println("\texport results to:" + outFile);
InstructionList il;
if (instructions.isEmpty()) {
il = new InstructionList(null);
} else {
AltResponse matchGHRsp = new AltResponse();
Path path = mapMatching.calcPath(mr);
new PathMerger().doWork(matchGHRsp, Collections.singletonList(path), tr);
il = matchGHRsp.getInstructions();
}
new GPXFile(mr, il).doExport(outFile);
} catch (Exception ex) {
importSW.stop();
matchSW.stop();
logger.error("Problem with file " + gpxFile + " Error: " + ex.getMessage());
}
}
System.out.println(
"gps import took:" + importSW.getSeconds() + "s, match took: " + matchSW.getSeconds());
} else if (action.equals("getbounds")) {
String gpxLocation = args.get("gpx", "");
File[] files = getFiles(gpxLocation);
BBox bbox = BBox.createInverse(false);
for (File gpxFile : files) {
List<GPXEntry> inputGPXEntries =
new GPXFile().doImport(gpxFile.getAbsolutePath()).getEntries();
for (GPXEntry entry : inputGPXEntries) {
if (entry.getLat() < bbox.minLat) {
bbox.minLat = entry.getLat();
}
if (entry.getLat() > bbox.maxLat) {
bbox.maxLat = entry.getLat();
}
if (entry.getLon() < bbox.minLon) {
bbox.minLon = entry.getLon();
}
if (entry.getLon() > bbox.maxLon) {
bbox.maxLon = entry.getLon();
}
}
}
System.out.println("max bounds: " + bbox);
// show download only for small areas
if (bbox.maxLat - bbox.minLat < 0.1 && bbox.maxLon - bbox.minLon < 0.1) {
double delta = 0.01;
System.out.println(
"Get small areas via\n"
+ "wget -O extract.osm 'http://overpass-api.de/api/map?bbox="
+ (bbox.minLon - delta)
+ ","
+ (bbox.minLat - delta)
+ ","
+ (bbox.maxLon + delta)
+ ","
+ (bbox.maxLat + delta)
+ "'");
}
} else {
System.out.println(
"Usage: Do an import once, then do the matching\n"
+ "./map-matching action=import datasource=your.pbf\n"
+ "./map-matching action=match gpx=your.gpx\n"
+ "./map-matching action=match gpx=.*gpx\n\n"
+ "Or start in-built matching web service\n"
+ "./map-matching action=start-server\n\n");
}
}
public static boolean isEqual(GPXEntry a, GPXEntry b) {
return Math.abs(a.getLat() - b.getLat()) < 1e-4 && Math.abs(a.getLon() - b.getLon()) < 1e-4;
}