Hi List,
I'm experimenting to create 'flower'-shaped polygons for a point layer,
denoting the signal coverage of several directional radio transmitters on a
pole (fyi: to find/locate bats with small transmitters).
After some fiddling I came to the attached result for a point with 3 (but
dynamic from attribute) transmitters using the following expression:
collect_geometries(
array_foreach( string_to_array("azimuths"),
make_circle( make_point(
$x + "bereik_m"/2 * cos(radians(@element)),
$y + "bereik_m"/2* sin(radians(@element))), "bereik_m" )
))
The result being a multipolygon with overlapping parts.
In this work the overlapping area'a are (apparently) the most interesting, as
there the 'location' accuracy is highest.
So my question: is there a way to give the overlapping area's really different
colors.
I've been playing with the layer rendering options, but ideally the area's in
which there is no, 2 parts, 3 parts, and 4 parts overlapping should be
differently colored..
I could try to create more advanced expressions (or probably I would go for
some python) for that, but I was hoping maybe there is another trick/idea to
use current multi-polygons, without adding 'parts'
Any help/tip is appreciated.
Regards & TIA,
Richard Duivenvoorde
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