Enable all snapping types in QGIS using Python

Question

Using the toolbar GUI of QGIS (Currenly using v3.28), I can enabled multiple/all the snapping types like this:

Now that's exactly what I'm trying to do in this code: (Just setting 2 types for the example)

snapping_config = QgsSnappingConfig() snapping_config.setEnabled(True) snapping_config.setMode(QgsSnappingConfig.AllLayers) # This only enables Area Snapping snapping_config.setTypeFlag(QgsSnappingConfig.AreaFlag) # Using the same method again with different type, only overwrites the previously set type. snapping_config.setTypeFlag(QgsSnappingConfig.CentroidFlag) QgsProject.instance().setSnappingConfig(snapping_config)

But I can't figure it out since the setTypeFlag method only accepts only one SnappingType enum object.

https://github.com/qgis/QGIS/blob/release-3_38/src/core/qgssnappingconfig.h#L255

How can I do that in QGIS python?

PolyGeo · Accepted Answer · 2024-08-26 11:41:39Z

You can set multiple Types using Qgis.SnappingTypes:

snapping_config.setTypeFlag(Qgis.SnappingTypes(Qgis.SnappingType.Vertex | Qgis.SnappingType.CentroidFlag | Qgis.SnappingType.Area))

You can find all SnappingType Enums in the documentation:

https://qgis.org/pyqgis/3.38/core/Qgis.html#qgis.core.Qgis.SnappingType

That works! I can't seem to figure out how you found out the SnappingType.Vertex enum, I was using it as with the Flag word: SnappingType.VertexFlag — Imaginary
– Imaginary, Commented Aug 26, 2024 at 7:11

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