Dear Maurizio
In the manual (4.2.1, p. 25) you see the format supported by RAMMS. It's also important (at the moment) that the order of the header lines are as shown in the manual and below. We use
XLLCORNER and YLLCORNER
and NOT XLLCENTER and YLLCENTER !
I will do some work there for the next RAMMS update, in order that there are fewer problems with DEM formats.
Header of supported ESRI ASCII file:
NCOLS 680
NROWS 560
XLLCORNER 625501.25
YLLCORNER 108298.75
CELLSIZE 2.50000
NODATA_value -9999
2342.230 2341.110 2340.210 2338.910 2337.230 2334.940 2331.990 2328.650 2326.420 2324.410 2322.790 2320.170 2317.700 2315.200 240 1757.770 1755.160 1751.940 1747.480
Hope this helps.....greetings
Marc