Enable Rule-Based symbology

[KoZwo]

Hi, I'm in a wierd situation where the symbology of my layer is in Rule-based and I can't change this for specific reasons.

I see that your tool can't extract HEX values because of that. Would it be possible to make it work with this type of symbology ?

Thanks alot!

[kxtells]

Hi @KoZwo,

Yes, I guess that if Qgis can render it, the plugin could to render it too, retrieving a symbol and a color.
It was never implemented since on the original version of this plugin the API was a bit confusing for me (2012!), and I did not really need it :-D

It is a matter of getting into the classQgsRuleBasedRenderer documentation and come up with a new function in https://github.com/kxtells/kxtells_qgis_plugins/blob/master/color_attribute/color_attribute.py#L417

I created a new branch implementing a first approach to this, note that with rule-based you can also end up with a feature matching various rules, in that case I guess the best approach is to simply retrieve the 1st symbol (this is what's implemented in the branch)

Please, test it cloning from here: https://github.com/kxtells/kxtells_qgis_plugins/tree/feat-%232-rule-based-symbols see if it works for your case.