test/test_coord_conversion.c

   1 #include <math.h>
   2 #include <vikwmscmapsource.h>
   3 #include <vikslippymapsource.h>
   4
   5 void test_coord_to_mapcoord(VikMapSource *source, gdouble lat, gdouble lon, gdouble zoom)
   6 {
   7   VikCoord vikCoord;
   8   MapCoord mapCoord;
   9   vikCoord.mode = VIK_COORD_LATLON;
  10   vikCoord.east_west = lon;
  11   vikCoord.north_south = lat;
  12   printf("%s: %f %f %f => ", g_type_name(G_OBJECT_TYPE(source)), vikCoord.east_west, vikCoord.north_south, zoom);
  13   vik_map_source_coord_to_mapcoord (source, &vikCoord, zoom, zoom, &mapCoord);
  14   printf("x=%d y=%d\n", mapCoord.x, mapCoord.y);
  15 }
  16
  17 void test_mapcoord_to_center_coord (VikMapSource *source, int x, int y, int scale)
  18 {
  19   VikCoord vikCoord;
  20   MapCoord mapCoord;
  21   mapCoord.x = x;
  22   mapCoord.y = y;
  23   mapCoord.scale = scale;
  24   printf("%s: %d %d %d => ", g_type_name(G_OBJECT_TYPE(source)), mapCoord.x, mapCoord.y, scale);
  25   vik_map_source_mapcoord_to_center_coord (source, &mapCoord, &vikCoord);
  26   printf("lon=%f lat=%f\n", vikCoord.east_west, vikCoord.north_south);
  27 }
  28
  29 int main(int argc, char *argv[])
  30 {
  31 #if ! GLIB_CHECK_VERSION (2, 36, 0)
  32   g_type_init();
  33 #endif
  34
  35   VikMapSource *spotmaps4osm_wmsc_type =
  36     VIK_MAP_SOURCE(g_object_new(VIK_TYPE_WMSC_MAP_SOURCE,
  37                                 "id", 202,
  38                                 "label", "Spotmaps (WMS-C)",
  39                                 "hostname", "spotmaps.youmapps.org",
  40                                 "url", "/spotmaps4osm/?LAYERS=spotmaps4osm&SERVICE=SPOTMAPS4OSM&SRS=EPSG:4326&bbox=%s,%s,%s,%s&width=256&height=256",
  41                                 NULL));
  42
  43   VikMapSource *osmarender_type =
  44     VIK_MAP_SOURCE(g_object_new(VIK_TYPE_SLIPPY_MAP_SOURCE,
  45                                 "id", 12,
  46                                 "label", "OpenStreetMap (Osmarender)",
  47                                 "hostname", "tah.openstreetmap.org",
  48                                 "url", "/Tiles/tile/%d/%d/%d.png",
  49                                 "check-file-server-time", TRUE,
  50                                 NULL));
  51
  52   gdouble lats[] = { 0, 90, 45, -45, -90 };
  53   gdouble lons[] = { 0, 180, 90, 45, -45, -90, -180 };
  54   int scale;
  55   for (scale = 0 ; scale < 18 ; scale++)
  56   {
  57     int i;
  58     for (i=0 ; i<sizeof(lats)/sizeof(lats[0]) ; i++)
  59     {
  60       int j;
  61       for (j=0 ; j<sizeof(lons)/sizeof(lons[0]) ; j++)
  62       {
  63         test_coord_to_mapcoord (spotmaps4osm_wmsc_type, lats[i], lons[j], 2<<scale);
  64         test_coord_to_mapcoord (osmarender_type, lats[i], lons[j], 2<<scale);
  65       }
  66     }
  67   }
  68
  69   for (scale = 0 ; scale < 18 ; scale++)
  70   {
  71     test_mapcoord_to_center_coord (spotmaps4osm_wmsc_type, 0, 0, scale);
  72     test_mapcoord_to_center_coord (osmarender_type, 0, 0, scale);
  73   }
  74
  75   return 0;
  76 }