- VikMapsLayer_MapType map_type_1 = { 2, 200, 200, VIK_VIEWPORT_DRAWMODE_UTM, terraserver_topo_coord_to_mapcoord, terraserver_mapcoord_to_center_coord, terraserver_topo_download };
- VikMapsLayer_MapType map_type_2 = { 1, 200, 200, VIK_VIEWPORT_DRAWMODE_UTM, terraserver_aerial_coord_to_mapcoord, terraserver_mapcoord_to_center_coord, terraserver_aerial_download };
- VikMapsLayer_MapType map_type_3 = { 4, 200, 200, VIK_VIEWPORT_DRAWMODE_UTM, terraserver_urban_coord_to_mapcoord, terraserver_mapcoord_to_center_coord, terraserver_urban_download };
-
- maps_layer_register_type("Terraserver Topos", 2, &map_type_1);
- maps_layer_register_type("Terraserver Aerials", 1, &map_type_2);
- maps_layer_register_type("Terraserver Urban Areas", 4, &map_type_3);
-}
-
-#define TERRASERVER_SITE "terraserver-usa.com"
-#define MARGIN_OF_ERROR 0.001
-
-static int mpp_to_scale ( gdouble mpp, guint8 type )
-{
- mpp *= 4;
- gint t = (gint) mpp;
- if ( ABS(mpp - t) > MARGIN_OF_ERROR )
- return FALSE;
-
- switch ( t ) {
- case 1: return (type == 4) ? 8 : 0;
- case 2: return (type == 4) ? 9 : 0;
- case 4: return (type != 2) ? 10 : 0;
- case 8: return 11;
- case 16: return 12;
- case 32: return 13;
- case 64: return 14;
- case 128: return 15;
- case 256: return 16;
- case 512: return 17;
- case 1024: return 18;
- case 2048: return 19;
- default: return 0;
- }
-}
-
-static gdouble scale_to_mpp ( gint scale )
-{
- return pow(2,scale - 10);
-}
-
-static gboolean terraserver_coord_to_mapcoord ( const VikCoord *src, gdouble xmpp, gdouble ympp, MapCoord *dest, guint8 type )
-{
- g_assert ( src->mode == VIK_COORD_UTM );
-
- if ( xmpp != ympp )
- return FALSE;
-
- dest->scale = mpp_to_scale ( xmpp, type );
- if ( ! dest->scale )
- return FALSE;
-
- dest->x = (gint)(((gint)(src->east_west))/(200*xmpp));
- dest->y = (gint)(((gint)(src->north_south))/(200*xmpp));
- dest->z = src->utm_zone;
- return TRUE;
-}
-
-gboolean terraserver_topo_coord_to_mapcoord ( const VikCoord *src, gdouble xmpp, gdouble ympp, MapCoord *dest )
-{ return terraserver_coord_to_mapcoord ( src, xmpp, ympp, dest, 2 ); }
-gboolean terraserver_aerial_coord_to_mapcoord ( const VikCoord *src, gdouble xmpp, gdouble ympp, MapCoord *dest )
-{ return terraserver_coord_to_mapcoord ( src, xmpp, ympp, dest, 1 ); }
-gboolean terraserver_urban_coord_to_mapcoord ( const VikCoord *src, gdouble xmpp, gdouble ympp, MapCoord *dest )
-{ return terraserver_coord_to_mapcoord ( src, xmpp, ympp, dest, 4 ); }