Pietro wrote:
Perhaps we could add two new functions, like: rmin and rmax that stay
for range min and range max that give this information
It's not possible to implement these as functions within the current
structure of r.mapcalc.
r.mapcalc's functions take row buffers as inputs, and return
On Wed, Oct 8, 2014 at 12:38 PM, Glynn Clements
gl...@gclements.plus.com wrote:
do you think could be useful?
Not really. Just use r.info (or r.univar if you want the min/max for
the current region) and substitute the result into the expression.
Yes, I did in this way.
Thank you.
Pietro
Dear all,
I would like to rescale a raster map from a -1, 1 interval to 0, 255.
To make an example I've tried to normalize the elevation map:
{{{
$ r.mapcalc el = elevation / max(elevation) --o
100%
$ r.info el
++
|
On Mon, Oct 6, 2014 at 4:51 AM, Pietro peter.z...@gmail.com wrote:
Dear all,
I would like to rescale a raster map from a -1, 1 interval to 0, 255.
To make an example I've tried to normalize the elevation map:
{{{
$ r.mapcalc el = elevation / max(elevation) --o
100%
$ r.info el
On Mon, Oct 6, 2014 at 2:25 PM, Anna Petrášová kratocha...@gmail.com wrote:
On Mon, Oct 6, 2014 at 4:51 AM, Pietro peter.z...@gmail.com wrote:
Again everything is NULL, I'm doing something wrong or it is a bug?
Glynn could perhaps give you some more precise comment, but basically, max
On 06/10/14 15:07, Pietro wrote:
On Mon, Oct 6, 2014 at 2:25 PM, Anna Petrášová kratocha...@gmail.com wrote:
On Mon, Oct 6, 2014 at 4:51 AM, Pietro peter.z...@gmail.com wrote:
Again everything is NULL, I'm doing something wrong or it is a bug?
Glynn could perhaps give you some more precise
On Mon, Oct 6, 2014 at 9:07 AM, Pietro peter.z...@gmail.com wrote:
On Mon, Oct 6, 2014 at 2:25 PM, Anna Petrášová kratocha...@gmail.com
wrote:
On Mon, Oct 6, 2014 at 4:51 AM, Pietro peter.z...@gmail.com wrote:
Again everything is NULL, I'm doing something wrong or it is a bug?
Glynn
On Mon, Oct 6, 2014 at 9:39 AM, Anna Petrášová kratocha...@gmail.com
wrote:
On Mon, Oct 6, 2014 at 9:07 AM, Pietro peter.z...@gmail.com wrote:
On Mon, Oct 6, 2014 at 2:25 PM, Anna Petrášová kratocha...@gmail.com
wrote:
On Mon, Oct 6, 2014 at 4:51 AM, Pietro peter.z...@gmail.com wrote:
On Mon, Oct 6, 2014 at 4:05 PM, Vaclav Petras wenzesl...@gmail.com wrote:
On Mon, Oct 6, 2014 at 9:39 AM, Anna Petrášová kratocha...@gmail.com
On Mon, Oct 6, 2014 at 9:07 AM, Pietro peter.z...@gmail.com wrote:
Perhaps we could add two new functions, like: rmin and rmax that stay
for range min
On Mon, Oct 6, 2014 at 10:52 AM, Markus Neteler nete...@osgeo.org wrote:
On Mon, Oct 6, 2014 at 4:05 PM, Vaclav Petras wenzesl...@gmail.com
wrote:
On Mon, Oct 6, 2014 at 9:39 AM, Anna Petrášová kratocha...@gmail.com
On Mon, Oct 6, 2014 at 9:07 AM, Pietro peter.z...@gmail.com wrote:
On 06/10/14 17:19, Vaclav Petras wrote:
On Mon, Oct 6, 2014 at 10:52 AM, Markus Neteler nete...@osgeo.org
mailto:nete...@osgeo.org wrote:
On Mon, Oct 6, 2014 at 4:05 PM, Vaclav Petras wenzesl...@gmail.com
mailto:wenzesl...@gmail.com wrote:
On Mon, Oct 6, 2014 at 9:39 AM, Anna
On Mon, Oct 6, 2014 at 5:53 PM, Moritz Lennert
mlenn...@club.worldonline.be wrote:
I'm not going to stand in the way of those who really want to implement
this, but why is this necessary ?
eval(r.univar -g $map)
r.mapcalc new=old/$max
(and equivalent in other programming languages) works
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