On 13/11/11 23:58, s...@clevelandmetroparks.com wrote: > I would suggest you do a conversion of the SRTM files to GeoTIFF. Chances > are very good you can do this with gdal utilities > http://www.gdal.org/gdal_utilities.html .
thanks for the tip. I tried, and it doesn't really look good - after the conversion, the file seems to 'lose depth'. when I open the converted .tif file in gimp, it tells me that the file uses 16 bit channels, while gimp only supports 8 bit channels. and thus the depth of coloring in the file is very crude. and I get the same effect when viewing the resulting layer, after importing it into geoserver, using the built-in OpenLayers preview. OTOH, when converting the HGT file into a JPEG using gdal, it seems to preserve all information. might it be that GeoServer supports only 8-bit GeoTIFF files, whereas the HGT files contain 16 bit height information? > Recursion is not directly supported but could be easily done through the > REST interface > http://docs.geoserver.org/stable/en/user/restconfig/index.html > > Examples are here: > http://docs.geoserver.org/stable/en/user/restconfig/rest-config-examples/index.html thanks - this would solve the issue of importing a number of files. OTOH, is it easy to combine these files into a single layer somehow? or should combine the GeoTIFF files in advance, and import it as one big file? > There is a built in preview that shows the data through OpenLayers in a > browser. thanks for the tip! >> 5. maybe I'm missing something, and there is a better source of >> elevation data available than SRTM? > > Ah, well that's a harder question-- it depends upon your geography. Other > similar near global sources include ASTER sources. thanks for the tip. this seems to offer more detailed data (1/3 arc sec instead of 1 - 3 arc sec), but I can't find a comprehensive download option for the whole data set, only an interactive one for selective download. will look further.. Akos ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Geoserver-users mailing list Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
