search

spatialthoughts / qgis-tutorials

Source files for sphinx-based website
http://www.qgistutorials.com
Apache License 2.0
66 stars 34 forks source link

Raster Mosaicing and Clipping (QGIS3) — QGIS Tutorials and Tips #179

Closed utterances-bot closed 3 months ago

utterances-bot commented 3 months ago

Raster Mosaicing and Clipping (QGIS3) — QGIS Tutorials and Tips

https://www.qgistutorials.com/en/docs/3/raster_mosaicing_and_clipping.html

manaswi1993 commented 3 months ago

Hi, beginner here. Followed the directions here. But when I run the "Clip Raster by Mask Layer" tool, I get the following error message, and no new temporary layer is formed:

"GDAL command output: Warning 1: Ring Self-intersection at or near point 35.621087106000061 23.139292914000066 ERROR 1: Cutline polygon is invalid. Process returned error code 1"

What does this mean? How can it be resolved?

spatialthoughts commented 3 months ago

Fix the geometry of your polygon using method described here https://www.qgistutorials.com/en/docs/3/handling_invalid_geometries.html