Thanks all for the conversation and helpful thoughts. I finally had time this morning to read through and try things in qgis.
For a polygon or multipolygon in the symbology settings, the random Marker fill seems to meet the need well. That should save me a lot of time! Have a good weekend all. On Thu, Jul 27, 2023 at 7:44 PM Shinoto, PD Dr. Maria via QGIS-User < qgis-user@lists.osgeo.org> wrote: > Oops, this was in my Spam folder. It seems that this is the solution to > the problem. Thanks a lot! > Maria > > > Am 2023/07/28 um 08:04 schrieb Alexandre Neto < > alexandre.n...@qcooperative.net>: > > Hello Hugh, > > > https://docs.qgis.org/3.28/en/docs/user_manual/style_library/symbol_selector.html#random-marker-fill > > Check the random marker fill. I believe it's what you are looking for. As > you can see in the docs, you can decide how many points you want to insert > inside the polygon. This option can be derived of each feature attributes > > Best regards, > > Alexandre Neto > User Support > www.qcooperative.net > > A quinta, 27/07/2023, 18:27, C Hamilton via QGIS-User < > qgis-user@lists.osgeo.org> escreveu: > >> This may not be an answer to your question, but the Density Analysis >> plugin (https://plugins.qgis.org/plugins/densityanalysis/) will create a >> uniform set of polygons over an area of interest with a NUMPOINTS attribute >> of the number of points are contained within the polygon. The NUMPOINTS >> value can be weighted using some other attribute. It will automatically >> style the density map as well from a given color ramp. >> >> Calvin >> >> On Wed, Jul 26, 2023 at 8:06 PM Shinoto, PD Dr. Maria via QGIS-User < >> qgis-user@lists.osgeo.org> wrote: >> >>> 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@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 >>> _______________________________________________ >>> QGIS-User mailing list >>> QGIS-User@lists.osgeo.org >>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user >>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user >>> >> _______________________________________________ >> QGIS-User mailing list >> QGIS-User@lists.osgeo.org >> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user >> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user >> > > _______________________________________________ > QGIS-User mailing list > QGIS-User@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > -- Hugh Kelley
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