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Python bindings for QGIS 3.

3 votes
1 answer
120 views

PyQGIS 3 vector layer labeling settings dialog

I am working on a PyQGIS standalone application with the latest QGIS 3 libraries and in Python 3.7. I would like to allow users to modify any vector layer's labeling style, I know in QGIS program, one …
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5 votes
2 answers
1k views

How to set label font color using data defined property for PyQGIS 3?

Set label font color using data defined property in PyQGIS 2 is well established, e.g. in another thread However, PyQGIS 3 completely changed the way this works with no well documented examples. So, …
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  • 1,115
2 votes
1 answer
1k views

pyqgis 3 setup vector labeling not working

I have a standalone pyqgis3.2.1 (Bonn) application that can display maps (vectors, rasters). I tried to setup labeling of vector layers using the following codes, but it only works for point layers, n …
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  • 1,115
5 votes
0 answers
438 views

pyinstaller package of pyqgis 3 standalone program failed import qgis.core

I have a working standalone pyqgis program with mapping ability, it was in python 2.7 and qgis 2.x library. I used pyinstaller to package it up. Now I have migrated this application to python 3.6 and …
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  • 1,115
1 vote
1 answer
375 views

pyqgis 3 QgsVectorLayer.startEditing() doesn't trigger vertex display

In pyqgis 2 standalone application, the following code will trigger the display of vertex as red cross mark, but in pyqgis 3.0.3 standalone application, it doesn't: layer.startEditing() mapCanvas.ref …
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