I am trying to write a python plugin for QGIS that can convert three vector layers into an object File for an urban climate model. Unfortunately I am stuck again with a possibly easy question:
How can I save a column from the attribute table of a vector layer to a variable (for later use)?
For example, I have a layer with buildings (
build) with the hight of the buildings in field 35. I want to save all the building hights into a variable (
I tried the following:
build = canvas.layer(2) build_prov = build.dataProvider() theINPolyHField = build_prov.select(, build.extent(), False, False) # but returns "None" build.selectedFeatureCount() # returns 0
What am I doing wrong?