Re: [GRASS-user] r.terraflow: dcell low precision?

2010-02-10 Thread Markus Metz
Rich Shepard wrote: Starting r.terraflow produces this warning: WARNING: raster aber5m is of type DCELL_TYPE --precision may be lost. My understanding is that raster maps have three possible data types: integer (cell), floating point single-precision (fcell), and floating point double

Re: [GRASS-user] r.terraflow: dcell low precision?

2010-02-10 Thread Rich Shepard
On Wed, 10 Feb 2010, Markus Metz wrote: r.terraflow stores elevation internally as floating-point single precision which is more than enough if elevation is in meters or feet so you can safely ignore the warning. Markus, Thank you. Perhaps that warning ought to be taken out of the code

[GRASS-user] r.terraflow: dcell low precision?

2010-02-09 Thread Rich Shepard
Starting r.terraflow produces this warning: WARNING: raster aber5m is of type DCELL_TYPE --precision may be lost. My understanding is that raster maps have three possible data types: integer (cell), floating point single-precision (fcell), and floating point double precision (dcell). If my