Example #1
0
QUrl TileLoader::uriForTile(int x, int y, int zoom) const {

    ///support both http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames AND lon,lat based API:s

    //Bing has min_lat,max_lat min_lon,max_lon API
    //double lon1 = ((double)x-0.5)/n_dbl*360.0 -180.0;
    //this is the north_west corner of the tile
    unsigned int n = (1 << zoom);
    double n_dbl = (double)n;
    double nw_lon = x/n_dbl*360.0 -180.0;
    double lat_rad = atan(sinh(M_PI*(1-2*y/n_dbl)));
    double nw_lat = lat_rad * 180.0/M_PI;

    double se_lon = ((double)x+1.0)/n_dbl*360.0 -180.0;
    double se_rad = atan(sinh(M_PI*(1-2*((double)y+1.0)/n_dbl)));
    double se_lat = se_rad * 180.0/M_PI;


    double center_lon2 = ((double)x+0.5)/n_dbl*360.0 -180.0;


    double lat_rad2 = atan(sinh(M_PI*(1-2*((double)y+0.5)/n_dbl)));
    double center_lat2 = lat_rad2 * 180.0/M_PI;


    ROS_INFO_STREAM("Tile = " << x <<", "<<y <<" TL lat,lon = "<<nw_lat << ", "<< nw_lon);
    ROS_INFO_STREAM("Tile = " << x <<", "<<y <<" BR lat,lon = "<<se_lat << ", "<< se_lon);

    std::string object = object_uri_;
    //  place {x},{y},{z} with appropriate values
    replaceRegex(boost::regex("\\{x\\}", boost::regex::icase), object,
                 std::to_string(x));
    replaceRegex(boost::regex("\\{y\\}", boost::regex::icase), object,
                 std::to_string(y));

    replaceRegex(boost::regex("\\{lat\\}", boost::regex::icase), object,
                 replaceCommaWithDot(std::to_string(center_lat2)));
    replaceRegex(boost::regex("\\{lon\\}", boost::regex::icase), object,
                 replaceCommaWithDot(std::to_string(center_lon2)));

    replaceRegex(boost::regex("\\{min_lat\\}", boost::regex::icase), object,
                 replaceCommaWithDot(std::to_string(se_lat)));
    replaceRegex(boost::regex("\\{min_lon\\}", boost::regex::icase), object,
                 replaceCommaWithDot(std::to_string(nw_lon)));
    replaceRegex(boost::regex("\\{max_lat\\}", boost::regex::icase), object,
                 replaceCommaWithDot(std::to_string(nw_lat)));
    replaceRegex(boost::regex("\\{max_lon\\}", boost::regex::icase), object,
                 replaceCommaWithDot(std::to_string(se_lon)));



  replaceRegex(boost::regex("\\{z\\}", boost::regex::icase), object,
               std::to_string(zoom_));

  ROS_INFO_STREAM("URL = "<<object);
  ROS_INFO_STREAM("lat_diff = "<<nw_lat-se_lat<<" lon_diff = "<<se_lon-nw_lon);
  const QString qstr = QString::fromStdString(object);
  return QUrl(qstr);
}
Example #2
0
QUrl TileLoader::uriForTile(int x, int y) const {
  std::string object = object_uri_;
  //  place {x},{y},{z} with appropriate values
  replaceRegex(boost::regex("\\{x\\}", boost::regex::icase), object,
               std::to_string(x));
  replaceRegex(boost::regex("\\{y\\}", boost::regex::icase), object,
               std::to_string(y));
  replaceRegex(boost::regex("\\{z\\}", boost::regex::icase), object,
               std::to_string(zoom_));

  const QString qstr = QString::fromStdString(object);
  return QUrl(qstr);
}