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Solved it. I couldn't fix what seems to be a bug but at least I managed to get the output for azimuth <100°. In case anyone is interested, this is what I did. I took my DEM raster to ArcGIS, used the tool "mirror" and took this reversed layer to QGIS where I used it as input for the r.horizon tool. This allowed me to get the output for azimuth 0° (which ...


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Thanks to markusN for an answer in a comment. It looks like it is not possible to export to PGDUMP using COPY rather than INSERT at present. Direct write access https://grasswiki.osgeo.org/wiki/PostGIS#Direct_write_access appears like a promising approach but I have not tried it. https://grass.osgeo.org/grass76/manuals/v.out.postgis.html has worked for me,...


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