Wednesday 21 February 2018

qgis - How to refer to another layer in the field calculator?


Is there a way to select an attribute from a polygon layer and insert the value into a virtual field of a point layer using "within" in the field calculator?


CASE
 WHEN within($geometry, geometry_polygon) THEN attribute_polygon
END

enter image description here




Answer



Spatial joins are available in the field calculator after installing the refFunctions plugin.


geomwithin(targetLayer,targetField)
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