Hi Glynn !
On 16/06/17 02:35, Glynn Clements wrote:
Markus Neteler wrote:
I just stumbled upon this while running a large model, and noticed that I
couldn't easily find an answer:
IIUC r.mapcalc does not support scientific notation of floating point
numbers (i.e. 2.540000e-05 instead of 0.0000254). Is that correct ?
How difficult would it be to implement the support of such notation ?
We just stumbled over the same issue... would be nice to have.
It works here:
$ r.mapcalc "foo = 2.540000e-05"
$ r.info -r foo
min=2.54e-05
max=2.54e-05
I can confirm that this works here as well. I have to admit that I don't
remember the details, but it was in the context of a python script, so
maybe it was something in the script. And I can't remember what solution
I found at the time.
It also works in python:
import grass.script as g
a = 2.54e-11
mce = "test = %e" % a
g.run_command('r.mapcalc', expre=mce, overwrite=True)
g.parse_command('r.info', flags='r', map_='test')
{u'max': u'2.54e-11', u'min': u'2.54e-11'}
Markus, what was your recent issue ? Maybe that will ring a bell for me...
[...]
Is this issue a wxGUI thing?
I wasn't confronted with it using the GUI, but running a script, AFAIR.
Moritz
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