Dear all,
GitHub Discussions is enabled
(https://github.com/OSGeo/grass/discussions/1841) -- obviously and
clearly _not_ replacing the mailing lists.
Warm regards, Nikos
ps- Thanks Vaclav for time and efforts put in to this
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Nikos Alexandris | Remote Sensi
* Nikos Alexandris [2020-02-04 16:51:33 +0100]:
regarding PROJ, cleaning up ${prefix}/share with the proj.db and grids is
quite important because PROJ is evolving fast and any leftovers from a
previous installation might confuse software compiled against PROJ.
That I forgot to remove :D
* Markus Metz [2020-02-03 22:35:26 +0100]:
Hi Nikos,
On Mon, Feb 3, 2020 at 7:28 PM Nikos Alexandris
wrote:
>>I got it working, more or less. Recompiling only PROJ did away most of
>>the errors but a few. I guess I need to recompile PROJ (+GEOS), then
>>GDAL, then the r
* Nikos Alexandris [2020-02-03 18:15:31 +0100]:
* Nikos Alexandris [2020-02-02 10:40:11 +0100]:
Markus Metz:
Hi Nikos,
PROJ is moving fast, please use the latest PROJ 6 release 6.3.0
On Sat, Feb 1, 2020 at 8:36 PM Nikos Alexandris
wrote:
Dears,
I cannot get GRASS GIS 7.8 to compile
* Markus Neteler [2020-02-02 10:43:51 +0100]:
Hi Nikos,
On Sun, Feb 2, 2020 at 10:40 AM Nikos Alexandris
wrote:
...
I got it working, more or less. Recompiling only PROJ did away most of
the errors but a few. I guess I need to recompile PROJ (+GEOS), then
GDAL, then the rest.
Would you
* Nikos Alexandris [2020-02-02 10:40:11 +0100]:
Markus Metz:
Hi Nikos,
PROJ is moving fast, please use the latest PROJ 6 release 6.3.0
On Sat, Feb 1, 2020 at 8:36 PM Nikos Alexandris
wrote:
Dears,
I cannot get GRASS GIS 7.8 to compile with
proj
Rel. 6.0.0, March 1st, 2019
if possible
Markus Metz:
Hi Nikos,
PROJ is moving fast, please use the latest PROJ 6 release 6.3.0
On Sat, Feb 1, 2020 at 8:36 PM Nikos Alexandris
wrote:
Dears,
I cannot get GRASS GIS 7.8 to compile with
proj
Rel. 6.0.0, March 1st, 2019
if possible, never use a x.0.0 release of any software, these
Dears,
I cannot get GRASS GIS 7.8 to compile with
```
eselect gcc show
x86_64-pc-linux-gnu-9.2.0
```
+
```
make --version
GNU Make 4.2.1
```
+
zlib version 1.2.11-r3
+
```
eselect python show
python3.7
```
+
```
flex --version
flex 2.6.4
```
+
```
proj
Rel. 6.0.0, March 1st, 2019
```
+
```
geos-
Great news.
Nikos
* Markus Neteler [2020-01-23 21:30:12 +0100]:
*GRASS GIS bug reporting and feature request on GitHub now! *
As it was treated in the last GRASS GIS community sprint
<https://grasswiki.osgeo.org/wiki/Talk:GRASS_GIS_Community_Sprint_Prague_2019>,
and with the aim of k
there a work-around?
Else, I see no option but to set on a Python script that will loop over
thousands of maps and will identify pixels for which all maps have a
valid value. Any recommendations (like best to user xarray or numpy or
rasterio or else...
sing
`r.buildvrt`. Clipping or "extracting" parts of this VRT will expectedly
work.
Nikos
regarding to clip a raster to vector extent, there a several ways. One may
be: g.region -a raster=yourraster vector=yourvector followed by a r.mask
vector=yourvecto
Maybe useful to know, there is the European Intellectual Property
Helpdesk (www.iprhelpdesk.eu). However *only* offered to beneficiaries
of EU-funded research projects and EU SMSes involved in transnational
partnership agreements (such as Horizon 2020 projects).
Nikos
* Moritz Lennert [2019
N. K., Hulley, G. C., Hook, S. J., Laraby, K., Cook, M., &
Schott, J. R. (2018). An Operational Land Surface Temperature Product
for Landsat Thermal Data: Methodology and Validation. IEEE Transactions
on Geoscience and Remote Sensing, (99), 1-19.
http://dx.doi.org/10.1109/TGRS.2018.2824828.
Nikos
aders, but it
will only allow one writer at any instant in time."
And in https://sqlite.org/lockingv3.html see 'SHARED'.
Also, https://stackoverflow.com/a/4060838/1172302.
Nikos
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htt
* Nikos Alexandris [2019-04-19 13:46:18 +0200]:
* Markus Metz [2019-04-18 18:38:28 +0200]:
On Tue, Apr 16, 2019 at 11:07 AM Moritz Lennert <
mlenn...@club.worldonline.be> wrote:
Hi,
If anyone has some time and wants to show off some GRASS GIS power:
https://www.ecmwf.int/en/le
our time from figuring out how the interface related api works.
Nikos
Markus M
APPLICATION DEADLINE: SUNDAY, 21 APRIL 23:59 GMT
Moritz
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* Nikos Alexandris [2019-03-14 17:57:16 +0100]:
* Markus Metz [2019-03-14 17:07:49 +0100]:
On Thu, Mar 14, 2019 at 3:16 PM Nikos Alexandris
wrote:
Following up, why are there differences between GDAL and GRASS GIS in
the following example?
This ftp://ftp.soilgrids.org/data/aggregated
* Markus Metz [2019-03-15 22:16:17 +0100]:
On Thu, Mar 14, 2019 at 11:31 PM Nikos Alexandris
wrote:
Markus Metz:
>>With r.stats -x, indexing starts with 1 (first row is 1).
>>With gdallocationinfo, indexing starts with 0 (first row is 0).
I wonder if `-0` flag would make sens
Markus Metz:
With r.stats -x, indexing starts with 1 (first row is 1).
With gdallocationinfo, indexing starts with 0 (first row is 0).
I wonder if `-0` flag would make sense to be GDAL-compliant.
I created a Pull Request (in `grass-ci`) for a minor update in the manual.
Nikos
Francois Chartier:
I am asking a question on the fundamentals not on a particular example on
how the value within a raster cell is determined when multiple vector data
points are located within a raster cell footprint.
I use RST mostly and sometimes IDW for vector data points.
Nikos
* Markus Metz [2019-03-14 17:07:49 +0100]:
On Thu, Mar 14, 2019 at 3:16 PM Nikos Alexandris
wrote:
Following up, why are there differences between GDAL and GRASS GIS in
the following example?
This ftp://ftp.soilgrids.org/data/aggregated/5km/OCDENS_M_sl1_5km_ll.tif
raster map, subject to
* Nikos Alexandris [2019-03-14 15:11:51 +0100]:
Following up, why are there differences between GDAL and GRASS GIS in
the following example?
This ftp://ftp.soilgrids.org/data/aggregated/5km/OCDENS_M_sl1_5km_ll.tif
raster map, subject to `gdalinfo`:
```
gdalinfo OCDENS_M_sl1_5km_ll.tif -nogcp
echo "GRASS: $3"
echo
done < stats_x_head
```
gives
```
(2930,77)
GDAL: 2090
GRASS: 2096
(2931,77)
GDAL: 2055
GRASS: 2090
(2932,77)
GDAL: 2063
GRASS: 2055
(2933,77)
GDAL: 2093
GRASS: 2063
(2934,77)
GDAL: 2240
GRASS: 2093
(2935,77)
GDAL: 2332
GRASS: 2240
(2936,77)
GDAL: 22
he direction of any rounding error. One consequence of
this is that downsampling by a factor which is an even integer will
always sample exactly on the boundary between cells, meaning that the
result is ill-defined."
Likely there is more on the subject.
Nikos
_
resample a raster data set and wonder how the new cell's
value is computed? Which module did you try to use? Which methods?
Vector data points? Which interpolation module did you try?
Nikos
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matplotlib
make: ***
[/osgeo/grasstrunk/dist.x86_64-pc-linux-gnu/include/Make/Html.make:14:
r.width.funct.tmp.html] Error 1
ERROR: Compilation failed, sorry. Please check above error messages.
```
Nikos
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s scope.
It is impressive: https://www.itzi.org/about/applications/.
Nikos
The best case >scenario is to have a system that could connect to a
weather service for >live forecasting. Is it a possibility?
Thanks for your help.
Mehrdad
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zmin_data=0.056488, zmax_data=3.756866
|zmin_int=-0.066779, zmax_int=3.214336
On the other side, results do not look so bad (see test.pdf figure).
I am following this thread out of curiosity/interest on resampling. The
.pdf file is not attached. How big is it?
Nikos
Would you have any comme
ould you recommend a resampling method other than
'average'?
Thank you, Nikos
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you can see
https://grass.osgeo.org/grass74/manuals/addons/r.valley
ou want to show two or more overlapping raster maps you need to combine them with the
r.patch module or r.mapcalc's '#' color operator. (see also the r.his and r.composite
modules)"""
-k.
Ken, there is also https://grass.o
.osgeo.org/grass76/manuals/r.resamp.rst.html
While the target is to somewhat maintain "geomorphometric consistency"
across the different (coarser) scales, which tool is recommended?
For `r.resamp.stats`, would you recommend a resampling method other than
'av
ed
Only shows roads, no elevation.
Same here, with a different raster and vector map. Drawing my raster
map gives a 48M file. Then, drawing my vector map ends up with a 1.18M
file.
Nikos
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* Nikos Alexandris [2019-01-26 00:13:38 +0100]:
* Ken Mankoff [2019-01-25 11:50:29 -0800]:
Hi Nikos,
On 2019-01-25 at 07:18 -0800, Nikos Alexandris
wrote...
A billion-pixel scaled DEM is the main input to compute the slope length
and steepness (LS) factor for RUSLE (`r.watershed`), only
* Ken Mankoff [2019-01-25 11:50:29 -0800]:
Hi Nikos,
On 2019-01-25 at 07:18 -0800, Nikos Alexandris
wrote...
A billion-pixel scaled DEM is the main input to compute the slope length
and steepness (LS) factor for RUSLE (`r.watershed`), only.
Tiling this DEM in tiles of 5K^2 pixels (`r.tile
different tiles is required (to
avoid border effects!?) and, if yes, how many pixels it should be.
Are there practical guidelines? Do I need to study the LS factor algorithm?
Is it something that analysts with experience in the domain can figure
out empirically?
Thank you, Nikos
ndows
Thankful for any kind of tests and constructive feedback.
Nikos
---
Remote Sensing & Geomatics
GPG Key Fingerprint 6F9D4506F3CA28380974D31A9053534B693C4FB3
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classes?
Thanks
Dear Giuseppe,
have a look at
https://grasswiki.osgeo.org/wiki/Image_classification#Supervised_classification.
Nikos
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* Alessandro Sebastiani [2018-10-29
21:32:51 +0100]:
thank you all for your suggestions.
Dear Nikos, I have some 0-1 rasters that represents presence-absence of
different land covers. Each raster's resolution is 10x10m, thus i want to
compute the sum in order to obtain the surface cover
way in looping over your input rasters. The key point is,
obviously, to express what is to be done in an unambiguous way.
I know python's basics, but i was not
able to do so following guidelines that i found on the internet, e.g GRASS
tutorial.
Please share which guidelines, i.e. whic
* Markus Neteler [2018-10-26 22:34:45 +0200]:
Hi Nikos,
On Tue, Oct 23, 2018 at 5:32 PM Nikos Alexandris
wrote:
Dear list,
is the
https://grass.osgeo.org/uploads/grass/sampledata/firedemo_grass7.sh
script available. This link is broken.
the correct link is:
https://grass.osgeo.org
* Frank David [2018-10-24 12:04:43 +0200]:
Le 24/10/2018 à 11:58, Nikos Alexandris a écrit :
* Frank David [2018-10-24 11:35:07 +0200]:
Stephan,
The G_OPT_OUTPUT option generate well the check box "add tree
layer" in my script GUI.
My problem, now is how to add the raster ou
* Frank David [2018-10-24 11:35:07 +0200]:
Stephan,
The G_OPT_OUTPUT option generate well the check box "add tree layer"
in my script GUI.
My problem, now is how to add the raster output while I want to set
his name by the script ? I succeed with g.copy my_raster_name to
output_raster_nam
* Frank David [2018-10-23 22:06:01 +0200]:
Thank you everybody for your help. Do you know why a
run_command("d.rast"... in a python script is not enough to display a
raster ? I don't understand why this command is so different.
Display a raster map where?
Nikos
signature.
Dear list,
is the
https://grass.osgeo.org/uploads/grass/sampledata/firedemo_grass7.sh
script available. This link is broken.
Thank you, Nikos
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d-files),
for example:
```bash
export GRASS_RENDER_IMMEDIATE=cairo
```
and retrieve them via
```python
RENDER_PATH = os.getenv(GRASS_RENDER_PATH)
```
Nikos
# Set image size using the region
region = Region()
xr = region.cols
yr = region.rows
ratio = xr/yr
height = int(WIDTH / ratio) # Choose
* Stefan Blumentrath [2018-10-22 08:20:05 +]:
I think Laurents solution is for rendering maps to file/image.
If of interest, see also:
https://lists.osgeo.org/pipermail/grass-user/2018-October/079436.html
Nikos
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://archive.org/details/GrassGisUnderTerminology [*]
Nikos
[*] replay is slow, to do: maybe some quality downgrade
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tion
slope aspect elevation my_ros.base my_ros.max my_ros.maxdir my_ros.spotdist
fire_origin spread_time_observed ;do r.category $MAP ;done
# in Windows
see example in:
https://lists.osgeo.org/pipermail/grass-user/2018-June/078526.html
Nikos
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_
Please post the exact command you have used (copy-and-paste).
Then, what does
```
r.category spread_time_observed
```
and what does
```
r.report spread_time_observed units=c,p
```
return?
* Kalindu Perera [2018-10-15 16:01:38 +0530]:
Dear Nikos,
We have used r.ros and r.spread commands
maps?
Then, maybe you need to "extract", each time, the "burned" area, then
use `r.surf.area` on it?
Nikos
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* Frank David [2018-10-12 16:31:06 +0200]:
Ha yes ! a small part of the legend is displayed on the bottom of my
map (I did not take care). I had probably activate d.legend by the
past to test it.
But I don't know how to remove it ?
Right click on it, then "Remove legen
(For context see previous messages in this thread)
Nikos A:
>> g.region raster=g2_BIOPAR_LST_201606220100_GLOBE_GEO_V1.2.nc_LST
>> -pag w=-180 e=180
Markus M:
>this shifts the grid by half a cell to the east. The -a flag does
>not mak sense because 1) you want to fo
Nikos wrote:
>> Import using r.in.gdal, _without_ any of `-l` or `-a` and then I get the
>> closest to the reported spatial resolution. Else, with `-a`, for
>> example, the spatial resolution is not as close to the "original" one.
>> Makes sense?
Mar
Nikos wrote:
gdalinfo NETCDF:"g2_BIOPAR_LST_201606220100_GLOBE_GEO_V1.2.nc":LST
Driver: netCDF/Network Common Data Format
Files: g2_BIOPAR_LST_201606220100_GLOBE_GEO_V1.2.nc
Size is 8064, 3584
Coordinate System is:
GEOGCS["unknown",
DATUM["unknown&quo
201606220100_GLOBE_GEO_V1.2.nc_LST -pag w=-180
e=180
360 degree EW extent is exceeded by 0.00019226 cells
360 degree EW extent is exceeded by 0.00019226 cells
360 degree EW extent is exceeded by 0.00019226 cells
projection=3
zone=0
n=80.0223214291667
s=-79.977682386
w=-180
e=180
nsres=0.0446428582072328
ewres=0.0446428571428571
rows=3584
cols=8064
cells=28901376
```
How does this look like? We had this questions not along ago.
Nikos
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(16-bit integer)
SUBDATASET_5_NAME=NETCDF:"g2_BIOPAR_LST_201606220100_GLOBE_GEO_V1.2.nc":TIME_DELTA
SUBDATASET_5_DESC=[1x3584x8064] TIME_DELTA (16-bit integer)
Corner Coordinates:
Upper Left (0.0,0.0)
Lower Left (0.0, 512.0)
Upper Right ( 512.0,0.0)
Lower Right (
* Markus Neteler [2018-09-24 17:04:13 +0200]:
On Mon, Sep 24, 2018 at 5:00 PM Markus Neteler wrote:
On Fri, Sep 21, 2018 at 5:31 PM Nikos Alexandris
> Dears,
>
> can I get a fraction (spatial and temporal) of the maps shown under
> https://lst.mundialis.de/, directly in GRASS GI
Dears,
I am trying to use `i.modis.download`. There is this message
"GDAL installation has no support for HDF4, please update GDAL" that
won't let the module run at all.
Strangely, there is no 'hdf' use flag (Gentoo/Funtoo terminology) for
gdal (anymore?).
Any Gentoo
grass' on the command line, so it was the executable for 7.5.svn
that ran.
Maybe better to softlink, instead of copying.
Nikos
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Dears,
can I get a fraction (spatial and temporal) of the maps shown under
https://lst.mundialis.de/, directly in GRASS GIS?
Thank you, Nikos
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;sum_of' set as label to all of the categories
involved above?
If the above is doable, then, there should be a way to compute the ratio for
each element in W to S (Line 14). Something like:
r.mapcalc "ratios = @weighted / sum_of"
Thanks, Nikos
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uploaded a copy here:
<http://www.fileconvoy.com/dfl.php?id=g2e79e5d28774b8f61000109779d0a98a0ece1c5a87>
Everyone is welcome to download a copy; it will be available for 5 days.
Best regards,
Rich
Thank you Rich!
Nikos
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* Gabriel Cotlier [2018-08-21 12:00:24 -0300]:
Dear Nikos and GRASS users,
I would like to ask if nonetheless the effect due to "stray light" the
*i.landsat8.swlst* code for split window is still applicable to Landsat 8
data and whether these error is specially visible on water b
Vaclav Petras [2018-08-14 23:20:16 -0400]:
* Get SRS/CRS for a file:
grass --tmp-location ~/data/elevation.tiff --exec g.proj -p
Nikos:
Perhaps test if the file exists and, if not, exit with an informative error
message?
In Python:
import os.path
os.path.isfile(fname)
?
Hi Nikos
en, `r.info -g dem_left` should match the current extent (`g.region
-g`).
Nikos
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All works.
Fantastic work!
Kudos Radek and Vaclav,
Nikos
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* Nikos Alexandris [2018-07-29 14:10:39 +0200]:
The obvious problem is: `r.stats` if CSV friendly but gives
approximations, `r.report` is not CSV friendly but the sum of relative
percentages sum up to 100%.
How do you report areal statistics?
See also: https://trac.osgeo.org/grass/ticket/507
s not CSV friendly but the sum of relative
percentages sum up to 100%.
How do you report areal statistics?
See also: https://trac.osgeo.org/grass/ticket/507
Nikos
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x27;s a driver issue (like Daniel mentions in his post) and GDAL can
read it, do you really need to import it? You know that you can link to
it via r.external.
Nikos
[..]
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age's geo-metadata that does not
play nice to create a new Location. Thus, it's best to use one of the
Shapefiles.
Nikos
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* Frank David [2018-07-14 12:13:26 +0200]:
Hi Nikos,
You can find below the full interface script. The script is not yet
finished. It may be helps you to understand the problem ?!
I don't really understand how works the parameter guidependency and
with which key I must connect it. I di
* Rich Shepard [2018-07-16 08:04:59 -0700]:
On Sat, 14 Jul 2018, Nikos Alexandris wrote:
gdalinfo int_43120C4404.tif -proj4 -nomd
Nilos/Helmut:
For some reason I looked at the .xml file rather than running gdalinfo on
the 100th/quad .tif file. Creating a new location with that proj.4
ps://epsg.io/6782
https://epsg.io/6781
Helmut,
I did that before too. Did you also note that it takes "too much" time to
create the Location using the '.tif' file?
As well, trying a few things further, I have seen similar problems such
as the ones Rich mentions (trying to reproject, etc.).
This is why I ended up in using the Shapefile as a source.
Nikos
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;GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",50.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",
* Frank David [2018-07-13 19:26:36 +0200]:
Le 11/07/2018 à 09:31, Nikos Alexandris a écrit :
* Frank David [2018-07-10 15:44:51 +0200]:
Le 10/07/2018 à 12:25, Nikos Alexandris a écrit :
* frank [2018-07-10 08:05:29 +0200]:
Hi dear grass users,
I'm trying to get two field na
* Rich Shepard [2018-07-11 09:58:52 -0700]:
On Wed, 11 Jul 2018, Nikos Alexandris wrote:
Thanks. Then, the help's description deserves an update. Currently:
-gtext use text based interface (show welcome screen) and set as default
Nikos,
Then I guess an update is due. See att
* Rich Shepard [2018-07-11 09:24:01 -0700]:
On Wed, 11 Jul 2018, Nikos Alexandris wrote:
By the way, the -gtext option is not relevant. It merely shows the
welcome/logo screen when launching a GRASS GIS session, then jumps back
to the command line.
Nikos,
Not with 7.5svn. When I use
* Rich Shepard [2018-07-11 08:24:27 -0700]:
On Wed, 11 Jul 2018, Nikos Alexandris wrote:
I see. Maybe we should file an enhancement ticket, to provide this option
through the command line too?
Nikos,
I don't know how common this is. This project is the first time I've had
* Rich Shepard [2018-07-11 05:44:47 -0700]:
On Wed, 11 Jul 2018, Nikos Alexandris wrote:
The grass --help does not mention support for "Proj" strings. Only
geo(-referenced)file and EPSG.
Nikos,
Yep. That's why I asked. So, on the infrequent occasions when source data
* Nikos Alexandris [2018-07-11 09:14:47 +0200]:
Gabriel Cotlier wrote:
I'm using grass 7.4.1 trying to export all raster layers in the current
mapset out of grass to a folder as GeoTiff files though a for loop from
the python shell as follows and I'm getting the er
* Frank David [2018-07-10 15:44:51 +0200]:
Le 10/07/2018 à 12:25, Nikos Alexandris a écrit :
* frank [2018-07-10 08:05:29 +0200]:
Hi dear grass users,
I'm trying to get two field name of an attribute table (ctx_map)
by the options of the gui. But I can access only at the first one
rans]]
[-e] [-f] [-text | -gtext | -gui] [--config param]
[[[GISDBASE/]LOCATION_NAME/]MAPSET]
grass75 [FLAG]... GISDBASE/LOCATION_NAME/MAPSET --exec EXECUTABLE [EPARAM]...
grass75 -c [geofile | EPSG] --tmp-location --exec EXECUTABLE [EPARAM]...
Nikos
hat have I done incorrectly?
Please post (also) the exact `v.edit` command.
Nikos
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mapset Name of mapset to list (default: current search path)
separator Field separator
default: newline
region Name of saved region for map search (default: not restricted)
output Name for output file
```
This on
```
g.version -r
GRASS 7.5.svn (2018)
li
ption: wtg name
#% required: yes
#%end
Thank you for your help.
Frank
Dear Frank,
if you refer to the last two "column" options,
how do you try to access these, in the script?
Like,
options['ctx_wf']
options['ctx_wtg']
?
Also, what .xml does
x.ScriptName -
Leonida,
there is nothing to be seen (at least with my client) below the "but it
returns:".
Is the script available to test? PM if you want.
Nikos
* leonidas [2018-07-06 09:32:26 -0700]:
I'm trying to compile my script as grass module.
I followed the instructions of this
will try to learn/improve how to better
communicate, in written form, these command instructions. And you could try to
go through what is written one more time, and take notes, one-by-one.
Best, Nikos
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performed
with `i.maxlik`.
Michele, if your goal is to get "segments", then classify these, why not
work with `i.segment` or/and `/addons/i.superpixels.slic`?
I guess you already know all this. I hope the discussion stimulates
a productive brainstorming.
Cheers, Nikos
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D
/r.texture.html.
Nikos
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ght provide the answers.
In the past, while beginning scripting in Python, the GUI modeler helped
me understand easier and learn better. The visual representation of and the
code behind a model, were easier to grasp than reading only a program.
A life-long learner, Nikos
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Adding one or two more resources, like
https://github.com/wenzeslaus/python-grass-addon, is meaningful.
Nikos
Either on a 'getting started' or wiki page is a list of commands to start
grass. In your installation 'grass' and 'grass74' are synonymous. If you run
mul
't use this at the moment. Instead, I draw on a file.
d.erase bgcolor=black
d.vect point_features color=magenta size=10 width=5
```
further, more clear:
```
g.region s=s-0.001 e=e+0.001 n=n+0.001 w=w-0.001 -p
d.erase bgcolor=black
d.vect point_features color=magenta size=10 width=5
```
Cheers,
* Markus Metz [2018-06-26 14:40:25 +0200]:
On Tue, Jun 26, 2018 at 9:53 AM, Nikos Alexandris
wrote:
* Markus Metz [2018-06-25 08:29:45 +0200]:
[..]
The resolution is a bit wrong, it is 0.0083330 but should be
0.008, i.e. exactly 30 arc-seconds. This can be solved
: set the region
to the raster, then modify the current region with g.region w=179:59:45W -p
and use this region for further processing.
I guess this is worth being documented in the manual of the add-on. Would
it also make sense to let the module attempt to perform this "correction&quo
y
Maybe more work if there is a substantially different math logic.
)
Thanks, Nikos
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e2014
The following will _not_ work:
i.nightlights.intercalibration image= image=$(g.list rast pattern=F* sep=,)
suffix=suffix=c model=elvidge2014
Nikos
ps- Kind request, please keep posting on the list.
* Nikos Alexandris [2018-06-20 04:07:27 +0200]:
Dear Gabriel,
try
ink" that the option `image`
is fed with only:
image=g.list
and the rest of the line will be treated as extra arguments.
Nikos
- Original Message -
From:
"Gabriel Cotlier"
To:
Cc:
Sent:
Tue, 19 Jun 2018 12:44:33 -0300
Subject:
[GRASS-user] i.nightlights.intercal
providing the URL
on the mail list makes it avaiable to others like you. Good catch!
Best regards,
Rich
Don't forget also this one:
http://www.training.gismentors.eu/grass-gis-workshop-jena-2018/
When I first read through, I was like... "OK".
Cheers, Nikos
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quot;
source2=""
description="generated by r.buildvrt"
comments="r.buildvrt --overwrite input="WestHalf,EastHalf" output="fIRSTgRASSY\vRT"
title="First GRASS GIS Virtual Raster Map""
# see in-terminal
g.region -a raster=L5192028_02
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