[Qgis-user] question about GDAL module ( QGIS 3.4.14-1 and 3.10.1-A)

[Richard McDonnell]

Hi Cinda,
I cant help diagnose the issue, but I can give you an alternative method of using  gdal_polygonize

Im assuming you are using this under Windows. Using the OSGeo4W Shell, navigate to the folder containing the dataset and then use

gdal_polygonize raster_in.tif -f "ESRI Shapefile" shapefile_out.shp

You can alternatively use the full file path also instead of navigating to a specific folder. A full list of additional commands can be found here

https://gdal.org/programs/gdal_polygonize.html

It should be quicker anyway than trying to run it from within QGIS

Regards,

Richard


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From: Qgis-user <qgis-user-bounces at lists.osgeo.org> On Behalf Of Cinda Graubard
Sent: 10 December 2019 19:46
To: qgis-user at lists.osgeo.org
Subject: [Qgis-user] question about GDAL module ( QGIS 3.4.14-1 and 3.10.1-A)

I'm trying to access a few gdal modules and keep getting this message:
2019-12-10T11:22:46     INFO    GDAL execution console output
             C:\OSGeo4W64\bin\python3.exe: No module named gdal_polygonize

I encountered this problem with 3.10.1-A and then went back and installed the last ltr 3.4-14-1 and have the same error.

I've checked the packages installed through the advanced installer, and the GDAL/OGR library and comandline tools are included, though I'm not extremely familiar with this interface so I could be missing something.
Can anyone suggest a solution for this?
Thanks,
Cinda



...............................................................................................................
Cinda Graubard
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