version Map.llsd 0.3 query loginuri layout modified identifier region foo co-ordinates x y z dimensions x 256 y 256 z 4096 image composite http://example.com/foo.png terrain http://example.com/foo.terrain.png objects http://example.com/foo.objects.png heatmap http://example.com/foo.heatmap.png simulator http://sim001.deepgrid.com