This thread has been helpful in reminding me about the buffer/de-buffer technique. I recently needed to do some generalization that it'll be great for, but for whatever reason, the technique didn't come to mind, even though I had just used it last week on another project. Now I remember what to try!
I’ve got 1000’s of land parcels, each divided by roads/rivers a few metres wide. Sometimes these split the land entirely, while others just wind their way into the land and come to a dead end.
The “Aggregate Polygons” tool dealt with the former, but I was still facing manual editing for the latter.
Double offset symbology works a treat, but I’ve got soooo many layers, each with a different blend mode:
• coloured outline
• shadow 1
• shadow 2
• blurred gradient stroke
• coloured fill
My laptop grinds to a halt trying to export all this.
Comments
The “Aggregate Polygons” tool dealt with the former, but I was still facing manual editing for the latter.
• coloured outline
• shadow 1
• shadow 2
• blurred gradient stroke
• coloured fill
My laptop grinds to a halt trying to export all this.
Just run one buffer with a positive distance, then another buffer on the result with a negative distance, and hey presto!
Then just run the “Eliminate Polygon Part” to get rid of any small holes.