Feature request #6776

Allow multiple parallel classifications for different visual variables

Added by Andreas Neumann over 4 years ago. Updated almost 2 years ago.

Status:Closed Start Date:11/28/2012
Priority:Normal Due date:
Assigned to:Nathan Woodrow % Done:


Target version:Future Release - High Priority
Platform: Resolution:worksforme
Platform version: Pull Request or Patch supplied:No
Status info: Tag:


It would be nice if one could do multiple parallel classifications for controlling different visual variables.

The classification of on attribute controls the fill color, the classification of a different attribute controls the stroke color, and the classification of a third attribute controls the stroke-width.

The advantage would be that one has to deal with fewer classes when comparing the the traditional rule-based renderer or when combining all attribute combinations into a single attribute.

The legend would have to be revised though, as to show only the aspects the attribute is controlling.


Updated by Nathan Woodrow over 3 years ago

Is this now covered with the data defined symbols?

Updated by Andreas Neumann over 3 years ago

  • Target version set to Future Release - High Priority

The rule-based renderer, the data-defined symbology and expressions certainly help to cover these cases. But it is still very time-consuming, esp. when a lot of classes are involved. For QGIS >2.0 we should discuss a better UI that help to deal with classifications involving two or more fields.

Updated by Andreas Neumann almost 2 years ago

  • Status changed from Open to Closed
  • Resolution set to worksforme

I am closing this, because I think that our symbology system is now powerful enough to handle the cases I have.

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