Hi, I was looking to change the default zcolor= option for 'd.vect -z', as "terrain" is not appropriate for local maps where the elevation does not change by hundreds/thousands of meters. "elevation" seems an obvious choice (or "rainbow" which is the default for rasters) as it is based on 0-100% instead of hardcoded elevations, but that does not work with LIDAR points data which is built without topology, perhaps because there is no access to min/max, or those values are filled with garbage(?). Anyway, after a long while rendering I get a white image in the xmon.
for LIDAR data there are millions of points and attribute tables containing GRASSRGB column are pretty much out of the question. just xyz data, often without topology built. for example, 0-1000m data is all green: v.random -z out=rand2k n=2000 zmin=0 zmax=1000 d.vect -z rand2k as is the LAS example on the wiki: http://grass.osgeo.org/wiki/LIDAR#Example also, it would be really nice if basic v.info and v.univar modules worked on vector maps lacking topology. any ideas? Hamish _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
