[Freegis-list] Tool for computing total area

[Markus Neteler]

On Tue, Mar 01, 2005 at 05:13:50PM -0300, Eduardo Patto Kanegae wrote:
> Hi folks,
> 
> which tool could you suggest for calculating 'real' area? I mean, NOT a 
> simple 2D plane area, but the area that needs DEM for its calculation.

Eg GRASS (http://grass.itc.it) contains related code:

r.surf.area help

Description:
 Surface area estimation for rasters.

Usage:
 r.surf.area input=name [vscale=value]

Parameters:
   input   Raster file for surface
  vscale   Vertical scale

Hope this helps

 Markus