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6 votes

Exposing GRASS GIS add-on in QGIS Processing framework?

QGIS core developer Nyal Dawson explained a best-practice approach in this e-mail thread. Overview Subclass QGIS' class Grass7AlgorithmProvider Set the value of descriptionFolder to the path of the ...
5 votes
Accepted

Creating a GUI toolbox for a GRASS add-on

The automatic registration actually happens for all add-ons installed from the official Addons repository. You can find in the Modules in the Layer Manager. The Addons show as a toolbox (group) on the ...
4 votes
Accepted

Can't install extensions nor grass-dev package

So, I stumbled upon this thread and I managed to install grass-dev with sudo aptitude install grass-dev. Not really sure what the aptitude command does but it worked! I had to go through multiple ...
3 votes

GRASS GIS addon "extension not found"; could the problem be with the GRASS Addons server?

It's working already. I was able to install it successfully without change anything. So I guess they solve the problem!
3 votes
Accepted

GRASS add on v.delaunay3d won't start

The module v.delaunay3d is actually an addon. You need to install it with g.extension, either in the graphical user interface (see below) or from commmand line with g.extension v.delaunay3d. Edit: ...
  • 12.8k
3 votes
Accepted

Addon installation problem on GrassGIS

I have probably found the error and updated the command in the GRASS GIS Addons repository. Within 24 hours (i.e. tomorrow), the updated module will be online available: g.extension r.viewshed.cva
  • 12.8k
2 votes

GRASS r.inund.fluv example of input files

Please consider to ask the authors and invite them to enhance the manual page. They will know best how to deal with the preparation of the input data.
  • 12.8k
2 votes

Which basename i am going to use as prefix in i.landsat8.swlst in GRASS GIS?

I found the answer to this query. Say, we are going to calculate LST for Landsat8 scene (LC81470372015290LGN00_B2), The Basename we are going to use for prefix in above mentioned command is: ...
  • 81
2 votes
Accepted

Error installing addons in GRASS 7.0.2: File is not a zip file?

Version 7.0.2 is an older one. The current release is 7.0.4: https://grass.osgeo.org/news/56/15/GRASS-GIS-7-0-4-released/ If you are speaking about MS Windows, the older addons are still online but ...
2 votes

Error installing addons in GRASS 7.0.2: File is not a zip file?

What is your OS, Windows, Linux, Mac OS X ? It is important because the addon needs to be compiled From g.extension On MS Windows systems, where compilation tools not readily available, g....
  • 51.9k
2 votes

MapInfo 'Info' tool - querying by polygon rather than at a point

That's a great idea for a inspection tool. Unfortunately, MapInfo Pro doesn't have such a tool right now. It could quite easily be created with MapBasic if you have any knowledge in that area. Let ...
1 vote

Where do installed add-on extensions appear in GRASS GUI

Addons in GRASS do not automatically get added to the GUI. However if you simple run the addon command, with no parameters, at the GRASS console you should get a GUI window for entering the command ...
  • 14.6k
1 vote
Accepted

v.stream.order extension does not install in GRASS 8.2

According to the addon log file at https://wingrass.fsv.cvut.cz/grass82/addons/grass-8.2.0/logs/ --> vector/v.stream.order FAILED log There is a ctypes problem: File "C:\msys64\usr\src\...
  • 12.8k
1 vote

Cannot install GRASS GIS add-ons

Regarding the first error, you probably need git (or svn) installed on your computer. Next the six python package ( see here) would probably be installed with pip install six or similar, depending on ...
  • 14.6k
1 vote

GRASS GIS Addon Installation Windows 10 Problem

Generally speaking GRASS 7.6 Windows Addons are still not operational (in the term of daily builds), last build dates back to Sep 2019. Consider switching to GRASS 7.8 or wait for 7.6.2. Now back to ...
  • 11
1 vote

r.viewshed.cva error: No points found, nothing to be exported

Thanks! It turns out that my DEM was too large for the memory allocation that the tool defaults are set to. Changing it from 500 to 300000 worked.
  • 81
1 vote

r.viewshed.cva error: No points found, nothing to be exported

The r.viewshed.cva addon script does not set the computational region. (Instead it allows the user to set any sub-region of the DEM. The module prints the message "Note that the routine is constrained ...
  • 14.6k
1 vote
Accepted

GRASS GIS addon "extension not found"; could the problem be with the GRASS Addons server?

The server was indeed apparently experiencing technical difficulties. I was finally able to install GRASS addons today using g.extension, something that I'd been trying to do for several days.
1 vote
Accepted

Unable to install add-on in GRASS GIS 7

As mentioned in comments above by @markusN, the problem was due to Network maintenance. Best John
  • 81
1 vote

Can't fetch addons in GRASS GIS 7.0.4 on Ubuntu 14.04

Due to adding new group of temporal addons, this was broken, fix is available in the upcoming GRASS version 7.0.5. In the meantime, you can still install extensions using g.extension module, either ...
  • 731
1 vote

r.viewshed.cva GRASS GIS 7.0.3

The addon was broken and should be fixed now. For running it on Windows please wait for tomorrow to install the updated version. For these cases you might consider asking on grass-users mailing list ...
  • 731
1 vote

r.viewshed.cva GRASS GIS 7.0.3

Have you set the region Before running viewshed? Maybe its trying to perform viewshed where you have no dem data? You can set region in menu Settings-Region-Set region. You can also use a command ...
  • 55.4k
1 vote

Error when installing a GRASS addon!

since I'm from the debian/ubuntu universe it is called differently at centos/rhel... have a look at http://wiki.osgeo.org/wiki/Enterprise_Linux_GIS#How_to_enable_the_ELGIS6_repository at centos it ...
  • 117
1 vote

Unable to find a specific GRASS add-on in QGIS

The algorithm you want is not in the latest QGIS processing toolbox either. It seems that it contains only core GRASS functions, but no add-ons. Compare http://svn.osgeo.org/grass/grass/trunk/raster/...
  • 75.4k
1 vote

Create Addons for GRASS GIS

Answered here: http://lists.osgeo.org/pipermail/grass-dev/2014-September/070622.html http://lists.osgeo.org/pipermail/grass-dev/2014-September/070624.html Essentially, for GUI customization, see ...
  • 12.8k

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