Hei Peppe, as I note: yes you can use your approach - but I wonder if it really suited to what you do... So I would rather use the points as input and apply an interpolation method [my opinion after reading about this lately]. Otherwise I am sure there is a GRASS function that generates DEMs out of contour lines directly [similar to the ANUDEM function]. Actually - how about doing both and then comparing the results?
> @Stefan. How can you display raster grid TIFF in OJ? I still have problem to > do it (or display the results (slope, aspect..). We should consider this > aspect on using sextante and put some notes on OJ wiki. I still haven't found > a solution. NB-Victor example data (data.asc) could be a good file to start > as sample the only way to display them nicely, so far, is to use the raster "normalize" (from 0..1) function in Sextante. Then everything is correctly displayed. But, you can not do any further operations based on that raster: it is just for visualisation. I also wrote a function that converts a raster loaded with the sextante option or coming from sextante into a point or a polygon layer. If that would help you I can add it to the nightly build in a couple of days. _______________________________________________ Sextante-users mailing list Sextante-users@lists.forge.osor.eu https://lists.forge.osor.eu/listinfo/sextante-users
