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QGIS 2.12.0 Lyon

I have an object with the following attributes:

  • shape [QString] ...circle, square
  • size [integer] ...8, 10
  • color [QString]

With the widget value map I fill these fields according to csv files. My color file looks like:

 rgb;description
'215,12,16';red
'51,36,215';blue

I did a rule-based style and on the map canvas it just looks like it should. But the colors in legend (TOC) are the predefined colors from the page "rule properties". What am I doing wrong?

enter image description here

6
  • Maybe you could add a screenshot of your rule-based styles window.
    – wiltomap
    Jan 22, 2016 at 9:32
  • It let me suppose bad things. Do I have create for each combination a diffrent rule? So it did not automatically add the properties like on the canvas to the TOC.
    – Rupicolous
    Jan 22, 2016 at 11:03
  • What kind of data is stored in the farbe attribute? RGB string or full color-name?
    – wiltomap
    Jan 22, 2016 at 12:31
  • Attribute farbe is the same as color from the example above. So i insert an rgb-string from my color.csv file.
    – Rupicolous
    Jan 22, 2016 at 12:51
  • OK. Then, I see no other solution than setting up rules one by one for each combination...
    – wiltomap
    Jan 22, 2016 at 12:52

1 Answer 1

2

Short answer: That's currently not possible.

There have been discussions about how to automatically create legends for data-defined styles. There's a solution for data-defined size but none for data-defined color so far. I assume funding would be necessary since it's not a trivial issue.

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