Re: [mkgmap-dev] low-res-opt branch: error message from ShapeSplitter for self-intersecting multipolygon

2021-06-15 Thread Gerd Petermann
Hi Ticker, thanks for the example. In fact I didn't even think about such really overlapping shapes yet. The basic shape merger simply tries to find common sequences of nodes and merges them. It never computes areas, and that's what makes it fast (I think). I'll try a different implementation

Re: [mkgmap-dev] low-res-opt branch: error message from ShapeSplitter for self-intersecting multipolygon

2021-06-15 Thread Ticker Berkin
Hi Gerd An example I'm looking at where shapeSplitter detects a self -intersection is 3 landuse=farmland polygons, 2 sharing corners, the other an edge: https://www.openstreetmap.org/way/678511630 https://www.openstreetmap.org/way/678511631 https://www.openstreetmap.org/way/677666500 They

Re: [mkgmap-dev] Documentation for the new Douglas-Peucker options in low-res-opt branch

2021-06-15 Thread Felix Hartmann
I just compile a map of usually Austria or Switzerland, use different values and first look at it in Basecamp. If it looks good enough I then transfer it to both Oregon 600 and etrex 30x and look at the map on the device, cycling through all zoom levels and panning the map around. On any not