I'm using a
QgsSingleSymbolRenderer to display various points and lines etc for a Line geometry.
I have a
Single symbol symbology to display the last vertex as a:
Line > Marker line > Marker > Simple marker which I'd like to colour according to one of the pre-defined colour ramps (e.g. Blues, with range between 0 - 100, based on an attribute value "count"), using PyQGIS.
I can do this manually in QGIS by opening the layer's properties and going to
> Symbology > Line > Marker line > Marker > Simple marker where I can use the colour assistant to set the symbols fill colour based on the value of "count". Is it possible to do this using PyQGIS? A snippet of my current code looks something like:
# Define symbol layers symbol_layers = QgsSymbol.defaultSymbol(vector_layer.geometryType()) symbol_layers.changeSymbolLayer(0, simple_line_symbol_layer) symbol_layers.insertSymbolLayer(1, last_vertex_simple_marker_symbol_layer) # Create renderer based on symbol layers, and apply to vector layer renderer = QgsSingleSymbolRenderer(symbol_layers) vector_layer.setRenderer(renderer)