Re: [OSM-dev] Zeroing or Extending a Hillshade-Tiff

2013-03-13 Thread Jochen Topf
On Tue, Mar 12, 2013 at 07:00:25PM +0100, Peter Körner wrote: Am 11.03.2013 21:10, schrieb Sven Geggus: Peter Körner osm-li...@mazdermind.de wrote: what way would you choose and wich tools could be used to go that way? Use the Water-Polygons from openstreetmapdata.com instead of land

Re: [OSM-dev] Zeroing or Extending a Hillshade-Tiff

2013-03-13 Thread AJ Ashton
On Wed, Mar 13, 2013 at 12:13 PM, Jochen Topf joc...@remote.org wrote: On Tue, Mar 12, 2013 at 07:00:25PM +0100, Peter Körner wrote: That's not that easy for the polar regions, because transforming the splittet polygons to the destination projection results in gaps because of straigt lines

Re: [OSM-dev] Zeroing or Extending a Hillshade-Tiff

2013-03-13 Thread Christoph Hormann
On Wednesday 13 March 2013, Jochen Topf wrote: Another option would be to split up the long straight lines resulting from the splitting into shorter pieces. If the pieces are short enough, it should be okay. Maybe there is some tool around that can do that easily? I don't want to put more and

Re: [OSM-dev] Zeroing or Extending a Hillshade-Tiff

2013-03-12 Thread Peter Körner
Am 11.03.2013 21:10, schrieb Sven Geggus: Peter Körner osm-li...@mazdermind.de wrote: what way would you choose and wich tools could be used to go that way? Use the Water-Polygons from openstreetmapdata.com instead of land polygons. That's not that easy for the polar regions, because

Re: [OSM-dev] Zeroing or Extending a Hillshade-Tiff

2013-03-11 Thread Sven Geggus
Peter Körner osm-li...@mazdermind.de wrote: what way would you choose and wich tools could be used to go that way? Use the Water-Polygons from openstreetmapdata.com instead of land polygons. This way you can use a layer order like this: * gray background * hillshade * water polygons without

Re: [OSM-dev] Zeroing or Extending a Hillshade-Tiff

2013-03-07 Thread Christoph Hormann
On Thursday 07 March 2013, Peter Körner wrote: b) extend the image with value 181 at the borders to fit the size of the image i'm going to render My question is: what way would you choose and wich tools could be used to go that way? for b: gdalwarp -dstnodata 181 Note it is usually best