Grass Community,
Anybody in the community have experience using grass for creating cut-fill maps a la Arc/Info
(http://webhelp.esri.com/arcgisdesktop/9.2/index.cfm?TopicName=Cut/Fill)
I have xyz coordinates for my current site. I'd like to input a desired slope, and have the GIS output the areas where earth needs to be moved and areas where earth needs to be added, with perhaps volume estimates as well.
Thanks in advance,
--
Frank Aragona
I've used GRASS to run preliminary quantities for a landfill design - It works quite well. Create a DEM that represents your proposed grades and then using mapcalc you can figure the cuts and fills relative to the existing topography. Then you can easily compute the volumes. If you want to balance the cut/fill, remember that there is a bulking factor on excavated material (say, 1.3X) and compaction of the fill (if any) needs to be considered. Rasterizing the proposed cut and fill surfaces can be a tedious process if there's a lot of detail.
I would say that if you have access to a CAD package that does earthwork for a living it'll be a lot easier - and quicker. But at a pinch, this is a very useful application of GRASS's many talents.
Stu
On Feb 9, 2009, at 3:06 PM, Frank Aragona wrote:
Grass Community,
Anybody in the community have experience using grass for creating cut-fill maps a la Arc/Info
(http://webhelp.esri.com/arcgisdesktop/9.2/index.cfm?TopicName=Cut/Fill)
I have xyz coordinates for my current site. I'd like to input a desired slope, and have the GIS output the areas where earth needs to be moved and areas where earth needs to be added, with perhaps volume estimates as well.
Thanks in advance,
--
Frank Aragona
_______________________________________________
grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user