Exemplo n.º 1
0
  @Override
  public GHResponse route(GHRequest request) {
    try {
      String places = "";
      for (GHPoint p : request.getPoints()) {
        places += "point=" + p.lat + "," + p.lon + "&";
      }

      boolean tmpInstructions = request.getHints().getBool("instructions", instructions);
      boolean tmpCalcPoints = request.getHints().getBool("calc_points", calcPoints);

      if (tmpInstructions && !tmpCalcPoints)
        throw new IllegalStateException(
            "Cannot calculate instructions without points (only points without instructions). "
                + "Use calc_points=false and instructions=false to disable point and instruction calculation");

      boolean tmpElevation = request.getHints().getBool("elevation", elevation);

      String url =
          routeServiceUrl
              + "?"
              + places
              + "&type=json"
              + "&instructions="
              + tmpInstructions
              + "&points_encoded=true"
              + "&calc_points="
              + tmpCalcPoints
              + "&algorithm="
              + request.getAlgorithm()
              + "&locale="
              + request.getLocale().toString()
              + "&elevation="
              + tmpElevation;

      if (!request.getVehicle().isEmpty()) url += "&vehicle=" + request.getVehicle();

      if (!key.isEmpty()) url += "&key=" + key;

      for (Entry<String, String> entry : request.getHints().toMap().entrySet()) {
        String urlKey = entry.getKey();
        String urlValue = entry.getValue();

        // use lower case conversion for check only!
        if (ignoreSet.contains(urlKey.toLowerCase())) continue;

        if (urlValue != null && !urlValue.isEmpty())
          url += "&" + WebHelper.encodeURL(urlKey) + "=" + WebHelper.encodeURL(urlValue);
      }

      String str = downloader.downloadAsString(url, true);
      JSONObject json = new JSONObject(str);

      GHResponse res = new GHResponse();
      res.addErrors(readErrors(json));
      if (res.hasErrors()) return res;

      JSONArray paths = json.getJSONArray("paths");
      for (int index = 0; index < paths.length(); index++) {
        JSONObject path = paths.getJSONObject(index);
        PathWrapper altRsp = createPathWrapper(path, tmpCalcPoints, tmpInstructions, tmpElevation);
        res.add(altRsp);
      }

      return res;

    } catch (Exception ex) {
      throw new RuntimeException(
          "Problem while fetching path " + request.getPoints() + ": " + ex.getMessage(), ex);
    }
  }
Exemplo n.º 2
0
  @Override
  public double getEle(double lat, double lon) {
    lat = (int) (lat * precision) / precision;
    lon = (int) (lon * precision) / precision;
    int intKey = calcIntKey(lat, lon);
    HeightTile demProvider = cacheData.get(intKey);
    if (demProvider == null) {
      if (!cacheDir.exists()) cacheDir.mkdirs();

      String fileDetails = getFileString(lat, lon);
      if (fileDetails == null) return 0;

      int minLat = down(lat);
      int minLon = down(lon);
      demProvider = new HeightTile(minLat, minLon, WIDTH, precision);
      cacheData.put(intKey, demProvider);
      try {
        String zippedURL = baseUrl + "/" + fileDetails + "hgt.zip";
        File file = new File(cacheDir, new File(zippedURL).getName());
        InputStream is;
        // get zip file if not already in cacheDir - unzip later and in-memory only!
        if (!file.exists()) {
          for (int i = 0; i < 2; i++) {
            try {
              downloader.downloadFile(zippedURL, file.getAbsolutePath());
              break;
            } catch (FileNotFoundException ex) {
              // now try with point if mirror is used
              zippedURL = baseUrl + "/" + fileDetails + ".hgt.zip";
              continue;
            }
          }
        }

        is = new FileInputStream(file);
        ZipInputStream zis = new ZipInputStream(is);
        zis.getNextEntry();
        BufferedInputStream buff = new BufferedInputStream(zis);
        byte[] bytes = new byte[2 * WIDTH * WIDTH];
        DataAccess heights = getDirectory().find("dem" + intKey);
        heights.create(bytes.length);

        demProvider.setHeights(heights);
        int len;
        while ((len = buff.read(bytes)) > 0) {
          for (int bytePos = 0; bytePos < len; bytePos += 2) {
            short val = BIT_UTIL.toShort(bytes, bytePos);
            if (val < -1000 || val > 10000) {
              // TODO fill unassigned gaps with neighbor values -> flood fill algorithm !
              // -> calculate mean with an associated weight of how long the distance to the
              // neighbor is
              //                            throw new IllegalStateException("Invalid height value "
              // + val
              //                                    + ", y:" + bytePos / WIDTH + ", x:" + (WIDTH -
              // bytePos % WIDTH));
              val = Short.MIN_VALUE;
            }

            heights.setShort(bytePos, val);
          }
        }
        // demProvider.toImage(file.getName() + ".png");
      } catch (Exception ex) {
        throw new RuntimeException(ex);
      }
    }

    short val = demProvider.getHeight(lat, lon);
    if (val == Short.MIN_VALUE) return Double.NaN;
    return val;
  }
Exemplo n.º 3
0
  @Override
  public GHResponse route(GHRequest request) {
    StopWatch sw = new StopWatch().start();
    double took = 0;
    try {
      String url =
          serviceUrl
              + "?point="
              + request.getFrom().lat
              + ","
              + request.getFrom().lon
              + "&point="
              + request.getTo().lat
              + ","
              + request.getTo().lon
              + "&type=json"
              + "&points_encoded="
              + pointsEncoded
              + "&min_path_precision="
              + request.getHint("douglas.minprecision", 1)
              + "&algo="
              + request.getAlgorithm();
      String str = downloader.downloadAsString(url);
      JSONObject json = new JSONObject(str);
      took = json.getJSONObject("info").getDouble("took");
      JSONArray paths = json.getJSONArray("paths");
      JSONObject firstPath = paths.getJSONObject(0);

      boolean is3D = false;
      if (firstPath.has("points_dim")) is3D = "3".equals(firstPath.getString("points_dim"));
      double distance = firstPath.getDouble("distance");
      int time = firstPath.getInt("time");
      PointList pointList;
      if (pointsEncoded) {
        pointList = WebHelper.decodePolyline(firstPath.getString("points"), 100, is3D);
      } else {
        JSONArray coords = firstPath.getJSONObject("points").getJSONArray("coordinates");
        pointList = new PointList(coords.length(), is3D);
        for (int i = 0; i < coords.length(); i++) {
          JSONArray arr = coords.getJSONArray(i);
          double lon = arr.getDouble(0);
          double lat = arr.getDouble(1);
          if (is3D) pointList.add(lat, lon, arr.getDouble(2));
          else pointList.add(lat, lon);
        }
      }
      GHResponse res = new GHResponse();
      if (instructions) {
        JSONArray instrArr = firstPath.getJSONArray("instructions");

        InstructionList il = new InstructionList();
        for (int instrIndex = 0; instrIndex < instrArr.length(); instrIndex++) {
          JSONObject jsonObj = instrArr.getJSONObject(instrIndex);
          double instDist = jsonObj.getDouble("distance");
          String text = jsonObj.getString("text");
          long instTime = jsonObj.getLong("time");
          int sign = jsonObj.getInt("sign");
          JSONArray iv = jsonObj.getJSONArray("interval");
          int from = iv.getInt(0);
          int to = iv.getInt(1);
          PointList instPL = new PointList(to - from, is3D);
          for (int j = from; j <= to; j++) {
            instPL.add(pointList, j);
          }

          // TODO way and payment type
          Instruction instr =
              new Instruction(sign, text, -1, -1, instPL).setDistance(instDist).setTime(instTime);
          il.add(instr);
        }
        res.setInstructions(il);
      }
      return res.setPoints(pointList).setDistance(distance).setMillis(time);
    } catch (Exception ex) {
      throw new RuntimeException(
          "Problem while fetching path " + request.getFrom() + "->" + request.getTo(), ex);
    } finally {
      logger.debug("Full request took:" + sw.stop().getSeconds() + ", API took:" + took);
    }
  }