[Qgis-user] Dot Density Symbology

Shinoto, PD Dr. Maria maria.shinoto at zaw.uni-heidelberg.de
Wed Jul 26 16:59:22 PDT 2023


Hi,

I have a similar research problem, and the dots seem to be a wonderful solution.

So, this email does not give any assistance re the original question, just an answer to the question below:

Am 2023/07/27 um 03:45 schrieb chris hermansen via QGIS-User <qgis-user at lists.osgeo.org>:

Here's (apologies for the closed source link) an example of the type of map/symbology I'm trying to describe.https://www.arcgis.com/apps/mapviewer/index.html?webmap=30d2e10d4d694b3eb4dc4d2e58dbb5a5

Thanks for any suggestions!

What about just shading the polygons using a gray scale?

Given that your polygons should generate a uniform density of dots within the area they bound, I don't see value in generating the dots for symbology.

The polygon area may vary, as it does in my research (distribution of burials in administrative areas). Therefore, a small area always looks underrepresented as compared to a larger area, and vice versa. I have large administrative areas with low densitiy, but they look well populated even with a very light shade of grey.

So I would like to try to find a solution to Chris' problem since the representation with dots is closer to reality than colouring areas. I will report when I found a solution for my use case -- though this may be autumn...

Maria
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