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Questions tagged [grass]

GRASS GIS, commonly referred to as GRASS (Geographic Resources Analysis Support System), is a free and open source Geographic Information System (GIS) software suite used for geospatial data management and analysis, image processing, graphics and maps production, spatial modeling, and visualization.

GRASS GIS, commonly referred to as GRASS (Geographic Resources Analysis Support System), is a free and open source Geographic Information System (GIS) software suite used for geospatial data management and analysis, image processing, graphics and maps production, spatial modeling, and visualization. GRASS GIS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies. It is a founding member of the Open Source Geospatial Foundation (OSGeo).

http://grass.osgeo.org/

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Running Actinia on docker container

I have recently heard about Actinia and I would like to try it out (I am remote sensing anaylst, I am not used to use command line ) I use Windows 10 . I have cloned Actinia on github and trying to use it on my docker container. I changed my…
Ric_02
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How to use v.patch or v.clean and v.clip?

I want to know that I am using GRASS GIS correctly. I'm having trouble merging these two shapefiles http://www.gisdeveloper.co.kr/download/admin_shp/EMD_201902.zip http://www.gisdeveloper.co.kr/download/admin_shp/LI_201902.zip How would you go…
jaksco
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Function to calculate characteristics of polygons in grass?

I'm writing code in grass and i need to calculate this two variables: the length of the longest axis in the units of the Spatial Reference of the input feature class. the length of shortest side of the bounding rectangle aligned with the longest…
Ignacio Aguirre
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GRASS 6.4.6 shell doesn´t work on Macbook High Sierra with QGIS 2.14

I have a question about the use the GRASS 6.4.6 (2016) Plugin that comes with the QGIS 2.14.21-Essen version. I installed the software on a Macbook that runs on High Sierra 10.13.3 and haven´t used any other versions of either GRASS or QGIS prior to…
Wouter Neisingh
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GRASS 7.4: r.cross unexpectedly produces category zero

I have a problem with the output of r.cross. I hope you can follow my description without MWE: I have 3 rasters I want to cross with the following characteristics: GRASS 7.4.0 (Bengue):~ > r.stats soil_t,lcov,watermask -N 100% 4 8 0 4 8 1 4 9…
Tobias
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save output stats to file using bash

I am working with GRASS GIS using PuTTy console and I would like to save statistics that I received, to text file. > r.stats -c xyz 1 286048 2 151 3 473 4 12030 5 197 * 107401 I want to use awk to create matrix, but my problem is to save result of…
AngelikaG
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How to use overwrite function on GRASS GIS?

I was trying to replicate this exercise of mikerspencer https://www.r-bloggers.com/spatial-networks-case-study-st-james-centre-edinburgh-13/ I add the data to qgis and then i opened the grass tools to do the first step: # connect postcodes to…
R. Saraiva
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Can you upload a neo4j grass-file via the API

Can you upload a neo4j grass-file directly via neo4j's REST API? I don't want to save the grass-file in an intermediary location and then execute a "style: http://xyz" cypher query - which is cumbersome. Thanks
Darragh OMalley
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Invalid parameter when using rgrass7 with GRASS 7.2.0. and R 3.3.2

I'm trying to process multiple operations in GRASS 7.2.0 using R 3.3.2 with the rgrass7 library. My main goal is to calculate road network distances between multiple locations with GRASS network tools. My problem is that the locations in my database…
user7631520
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How to execute grass module in QGIS python command console

I am working under QGIS V2.16.0. I'd like to run the r.watershed module of grass using the python command console of QGIS. I tried a lot of syntax like this : execfile ("r.watershed",…
Panvjim0
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Trouble importing Numpy into Grass GIS 7.0 on Windows 10

I recently installed Grass GIS 7 on my Windows 10. Upon loading the program, I receive an error in the terminal window stating: 'This module requires the Numeric/numarray or NumPy module, which could not be imported. It probably is not installed…
user3052817
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GRASS GIS: r.diversity

I lauched the script r.diveristy.py in GRASS GIS 6.4.3 from launch script option in file menu. After that the r.diversity GUI appeared in which I gave the input and the output file name and then run. The following error message is…
hyjk-stofl
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call grass modules via python from outside

I want to call some grass modules(e.g. r.walk module) in my python script. And fortunately I find lots of useful hints on https://grasswiki.osgeo.org/wiki/GRASS_and_Python#MS-Windows. Here it is. MS-Windows In order to use GRASS functionality…
fly
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neo4j GRASS border color if attribute?

Is it possible to change a border color of a node if a attribute is present or not within the GRASS stylesheet? For example, if you have: (x:Name {first:"test"}) (y:Name {first:"brian" is_cool:"true"}) I would like the 2nd to have a red border.
wuntee
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R: Error output while using GRASS

I had seen this this but even after I remove the space or a separator in between the file name and appended number, I keep in getting the same error. Are there any suggestions for…
flyingclouds
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