A road section disappears on lower zooms #10107

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opened 2025-01-21 09:45:52 +00:00 by pastk · 0 comments
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https://www.openstreetmap.org/way/172544089#map=15/48.10010/37.94158
Its highway=secondary so should be visible from z10-.

But the section disappears on z12 and earlier (Android device):
Image

What's weird in that on the linux desktop its rendered on z12, but is absent on z10-11 still (the maps are the same of course)
Image

So it could be a bug of the lines simplification algo in the generator (produces an invalid result) or a rendering bug in the drape engine.

@vng FYI

https://www.openstreetmap.org/way/172544089#map=15/48.10010/37.94158 Its `highway=secondary` so should be visible from z10-. But the section disappears on z12 and earlier (Android device): ![Image](https://github.com/user-attachments/assets/660e10b0-5ebe-46f9-9f85-9359e6615885) What's weird in that on the linux desktop its rendered on z12, but is absent on z10-11 still (the maps are the same of course) ![Image](https://github.com/user-attachments/assets/2ab00306-9dbc-4b77-801b-fa2a4b45d32a) So it could be a bug of the lines simplification algo in the generator (produces an invalid result) or a rendering bug in the drape engine. @vng FYI
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Reference: organicmaps/organicmaps-tmp#10107
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