Hi Grasslist,
first of all thanks for the help with r.buffer, but now another question:
Does r.volume only calculate integer values? I got 44 cells (resolution:
1 m) with a data range of 0.1 - 0.36 m. But when calcultating the volume
r.volume returns 0.00 cubicmeters.
I thought about summarizing all cell values and multiplying it with the
44 cells. Can anybody give me a hint how I can get the sum of all
cell-values (as I understood r.statistics only works with integer data).
Some neighbor operations with r.mapcalc?
Thanks in advance
Malte
On Sun, 15 Dec 2002 21:24, Malte Martin wrote:
Does r.volume only calculate integer values? I got 44 cells
(resolution: 1 m) with a data range of 0.1 - 0.36 m. But when
calcultating the volume r.volume returns 0.00 cubicmeters.
I thought about summarizing all cell values and multiplying it with
the 44 cells. Can anybody give me a hint how I can get the sum of all
cell-values (as I understood r.statistics only works with integer
data). Some neighbor operations with r.mapcalc?
A common workaround is to multiply your original data set by 10^number
of digits precision you want then divide the answer by the same.
mapcalc "workmap = map * 1000000"
--
Gordon Keith
Programmer/Data Analyst
Marine Acoustics
CSIRO Marine Research
http://www.marine.csiro.au
"Computers are useless. They can only give you answers."
- Pablo Picasso, 1968