[Qgis-user] Composite marker Symbol

[Andreas Neumann]

Hi Les,

data-driven symbology and labeling is certainly possible. Look out for
these small icons next to each property widget where you can either
choose an attribute column or a QgsExpression (calculation). This works
for virtually any property. If something is missing, it could certainly
be added.

Regarding the legend, things are more complicated. If you use a lot of
data-driven symbology and labeling, generation of legends (both in the
layer tree and in print composer) will not work properly. In print
composer you can use a static legend as a workaround. You can draw the
legend yourself in a graphics package like Illustrator/Inkscape and
import the legend as SVG.

It is an open, not so easy to solve issue how to properly generate
dynamic legends based on data-defined symbology and labeling - to still
work fast enough - and do not destroy a print layout.
Ideas/comments/funding welcome ;-)

Andreas

Am 24.07.2014 21:06, schrieb les at true3d.com.au:
> Andreas,
> 
> Thank you for your advice regarding dynamic labelling.  I am able to
> label my map similar to your example.  In the legend I would like to
> show a marker symbol with a short description.  I would like the marker
> to be data driven rather than create each marker individually.  Can this
> be done in QGIS 2.4 Chugiak?
> 
> Once again, thank you for your assistance.
> 
> Regards,
> 
> Les Searle
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