Funny Doug, you nearly read my mind here... -> "gdal/GRASS interface code"
Thanks, Yann On 20 March 2013 17:29, Newcomb, Doug <[email protected]> wrote: > Yann, > About all I can recommend is the vrt format tutorial, > http://www.gdal.org/gdal_vrttut.html, gdal, data model > http://www.gdal.org/gdal_datamodel.html, and driver tutorial, > http://www.gdal.org/gdal_drivertut.html , etc in the gdal online > documentation. You might look at the existing gdal/GRASS interface code. I'm > not a C programmer yet, so I can't help much there. > > Doug > > > On Tue, Mar 19, 2013 at 10:01 PM, Yann Chemin <[email protected]> wrote: >> >> Thank you Doug, >> >> yes r.patch is a good alternative, but it means writing to disk etc. >> Was more thinking of a display memory thingy. >> >> Been thinking about the virtual rasters indeed, maybe will have a >> look, any C code page you could direct me to? >> >> Cheers, >> Yann >> >> On 20 March 2013 05:39, Newcomb, Doug <[email protected]> wrote: >> > Yann, >> > If I have a large number of layers, I usually do it from a command line >> > or >> > with a script. I done r.patch with over 100 layers in one command ( >> > before >> > I discovered gdalbuildvirt :-)) >> > >> > Doug >> > >> > >> > On Tue, Mar 19, 2013 at 4:36 AM, Vaclav Petras <[email protected]> >> > wrote: >> >> >> >> On 19 March 2013 09:31, Yann Chemin <[email protected]> wrote: >> >> > OK found Ctrl+Shift+L in wxGUI >> >> > >> >> Yes, it is my favorite feature. I use it even to find and add one map. >> >> >> >> However, there is some issue with many layers in layer manager. If you >> >> load more than 20 (?) layers (maps) only some of them will be >> >> rendered. There were no investigations; maybe it applies only to >> >> vectors. And, of course, it is slow. >> >> >> >> > Thanks ! >> >> > Yann >> >> > >> >> > On 19 March 2013 13:56, Yann Chemin <[email protected]> wrote: >> >> >> I am dealing with hourly Microwave data that are not covering the >> >> >> whole World in each layer. >> >> >> >> >> >> To have a decent presentation map of the data, I'd like to get a set >> >> >> (say 30-50 layers) displayed in one go. >> >> >> >> >> >> OK I could do it with the png driver in a script (which is what it >> >> >> may >> >> >> eventually become), but for the sake of knowledge, is there a GUI >> >> >> option to load a (rather large) set of images in one block without >> >> >> having to struggle with a cluttered GIS Manager? >> >> >> >> >> >> Thanks >> >> >> Yann >> >> >> >> >> >> -- >> >> >> Yann Chemin >> >> >> Researcher@IWMI >> >> >> Skype/FB: yann.chemin >> >> > >> >> > >> >> > >> >> > -- >> >> > Yann Chemin >> >> > Researcher@IWMI >> >> > Skype/FB: yann.chemin >> >> > _______________________________________________ >> >> > grass-dev mailing list >> >> > [email protected] >> >> > http://lists.osgeo.org/mailman/listinfo/grass-dev >> >> _______________________________________________ >> >> grass-dev mailing list >> >> [email protected] >> >> http://lists.osgeo.org/mailman/listinfo/grass-dev >> > >> > >> > >> > >> > -- >> > Doug Newcomb >> > USFWS >> > Raleigh, NC >> > 919-856-4520 ext. 14 [email protected] >> > >> > --------------------------------------------------------------------------------------------------------- >> > The opinions I express are my own and are not representative of the >> > official >> > policy of the U.S.Fish and Wildlife Service or Dept. of the Interior. >> > Life >> > is too short for undocumented, proprietary data formats. >> >> >> >> -- >> Yann Chemin >> Researcher@IWMI >> Skype/FB: yann.chemin > > > > > -- > Doug Newcomb > USFWS > Raleigh, NC > 919-856-4520 ext. 14 [email protected] > --------------------------------------------------------------------------------------------------------- > The opinions I express are my own and are not representative of the official > policy of the U.S.Fish and Wildlife Service or Dept. of the Interior. Life > is too short for undocumented, proprietary data formats. -- Yann Chemin Researcher@IWMI Skype/FB: yann.chemin _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
