kapo coulibaly wrote: > I'm trying to interpolate a raster from a shapefile (points or contours). > The shapefile is a 2ft contour lidar-derived elevation and I need a 10 ft > resolution DEM.
Extracting contours discards a lot of information, results are more detailed if a raster surface is interpolated straight from the LiDAR points. Try any of the v.surf.* modules with the LiDAR points, not the contours. > Obviously even on a dual core dual processor 64 bit > workstation with 8 GB of ram I couldn't complete the computation. How many cells (rows, columns) are in the current region? Did you use r.surf.contour? The -s flag might help to reduce memory requirements a bit for very large datasets. Markus M > Is there > an automated way to slice the domain in smaller pieces, carry out the > computation and piece them back together afterward? I'm thinking of writing > a script but i was wondering if it has already been done. > > Thanks > > _______________________________________________ > grass-user mailing list > grass-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-user > > _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
