Am 18.06.2011 11:09, schrieb Fixdit:
Hello,
I'm in need of help finding/building a day and night layer overlaid on top
of an Openlayers world map. Much like this Google Map example:
http://www.daylightmap.com/index.php
How would this be achieved using Openlayers?
I don't think it's a question of openlayers but one of your tile source.
You would need a Tile-Renderer or maybe WMS that renders you such images:
http://www.daylightmap.com/tiles/cache/tile_n_3_0_2_1308564480.png
You can then add them as Tile-Layer with opacity: 0.8
I have some algorithm examples that could kick start things if there is
nothing already out there, but unsure of where to start implementing
something like this with Openlayers:
http://www.astro.uu.nl/~strous/AA/en/antwoorden/zonpositie.html#v526
It may be possible to add this as vector layer, but you won't get these
lights on cities then.
Peter
_______________________________________________
Dev mailing list
d...@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/openlayers-dev
