R.SURF.CONTOUR and real numbers

[martijn at scanner.frw.uva.nl]

On Mon, 23 May 1994 Pierluigi.Bonfanti at Dpvta.Uniud.It wrote:

> I have used R.SURF.CONTOUR to produce a DEM.
> Now I need to export the file with R.OUT.ASCII,
> but I'm unable to obtain an ascii file with real
> data type.

That seems reasonable, considering that GRASS only stores integers in its 
cell files...

> Is it possible to produce a DEM with real data type
> (with 2 decimal numbers) by using R.SURF.CONTOUR,
> or must I transform the units of the input file 
> from meters to centimeters?

As far as I know, you can only produce th edesired level of detail by 
starting with an input (vector?) file with height values in centimeters, 
then run r.surf.contour and r.out.ascii, then edit the ascii file to put 
in all the decimal dots - hopefully this last step can be performed much 
easier in the program that you need the ASCII DEM for...

> > Thanks. > > 
Alessandro Fregonese > 

P. Martijn van Leusen

Institute of Prehistory, University of Amsterdam
martijn at scanner.frw.uva.nl