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I want to use the "fix geometries" tool in the Python console in QGIS. However, I can't find anywhere, how to function is called and how to use it as code. I tried

QgsProcessingOutputVectorLayer(input_path, output_path)

But I guess this is wrong, since it does not work. Any hints?

1 Answer 1

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You can call fix geometries algorithm as follows in pyqgis:

import processing
layer = iface.activeLayer()
fix_layer = processing.run("native:fixgeometries", {'INPUT':layer,'OUTPUT':'memory:'})['OUTPUT']

I tried it in qgis 3.10

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  • Can you recommend a website or anything alike where to look up all the commands? For me it seems like the information is kind of scattered across several websites. I always take ages to find information on how to call which tool.
    – Zoe
    Aug 24, 2020 at 21:02
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    @blumige_statistik to know how to run a processing algorithm I do the following: I run the algorithm and then go to the menu Processing > History > and then select the last algorithm executed. When you select it you can see how to run it using pyqgis. Aug 24, 2020 at 21:58
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    This answer can help you: gis.stackexchange.com/a/372681/120426 Aug 28, 2020 at 16:39
  • The pyQGIS API documentation is also a good resource. qgis.org/pyqgis/3.16
    – nr_aus
    Dec 16, 2021 at 5:57

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