[Qgis-developer] Complex symbology: multiple classifications for different graphical variables
a.neumann at carto.net
Tue Nov 27 00:35:36 PST 2012
In many of my projects I need to do several classifications for
different graphical variables, like fill-color, stroke-color, size,
As an example I need to represesent manholes where the symbol shape
(SVG) is based on manhole type, the symbol stroke colors based on the
usage, and the size based on dimensions.
I know that it is currently possible to reach this goal by either
* using the rule based renderer - it would result in a lot of rules or
refined rules - a lot of work
* or concatenating the three attribute values into one attribute and
using the unique value renderer - but this results in many, many
combinations. Too many classes to handle.
So my question/suggestion:
Can we introduce multiple parallel/simultaneous categorized
classifications where each attributes controls one visual variable?
I don't know how one could display a legend then with such parallel
classifications ... but other than that it would be more convenient for
There may also be technical issues making this impossible.
Any thoughts on this?
8624 Grüt (Gossau ZH)
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