Am 13.11.2014 um 10:34 schrieb Dave Potts:
Hi
I am trying to display the results of a spatial analysis, the return
form is a set of polygons of increasing size. All located on top of each
other. I want to draw it, so it looks like a target, but all that
happens is that the largest polygon is drawn last which blocks out all
of the others. Is there an easy way of display the result?
I can not see any way of using an outside function so that the largest
polygon would be drawn firsts with the next polygon drawn on top of it.
Since its an import from a postgis table every does have an unique id.
In Layer Properties, Style tab you can use a categorized or graduated
style based on the unique id, or some other field of the attribute table.
Then click on the "Advanced" button beneath the symbol table, and select
"Symbol levels". If you check "Enable symbol levels", you can predefine
in which order your symbols should be rendered.
You can even set all colours equal or a fill style "No Brush" if you
only want to see the contours.
HTH,
André Joost
_______________________________________________
Qgis-user mailing list
Qgis-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-user
