if using reduce - then better call it --reduce-point-density-line and --reduce-point-density-polygon. Otherwise its a bit confusing. Or easiest - just call it --simplify-lines and --simplify-polygons (its not correcting an error, but just optimizing OSM data in my eyes. and how its achieved, dp-filter, whatever is not so relevant in the option name).

I do not know of any errors good if it will be merged.

On Mon, 21 Jun 2021 at 11:20, Gerd Petermann <GPetermann_muenchen@hotmail.com> wrote:

Hi all,

I made no more progress to find a solution to detect parallel lines in the overview map. Too many special cases and almost no improvement with the simple cases.
So, I think this should no longer block the merge to trunk.

Mike suggested not to add new options --simplify-filter-line-errors / --simplify-filter-polygon-errors but instead enhance the syntax for the existing options --reduce-point-density and --reduce-point-density-polygon. I am open to that. What's better?

Are there any other known problems with the branch? Any good ideas to improve something?

Gerd
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