Part of track not drawn in higher zooms

Ingo Rau shared this problem 8 years ago

This may be "normal", due to some kind of track simplification in higher zooms, but it's still sub-optimal.

Look at the attached screenshots: In Zoom level 15, the track is correct, but in lower zooms, the middle points are not drawn which leads to a completely different looking track. I know, there are only two or three points in between, so perhaps they got thrown out, but perhaps that could be improved...

Replies (2)


Good day Ingo,

what you describe here is not new to me. Locus simplify tracks with very simple method ... it just draw only every n-th point, based on current map scale. This method has one advantage, it's really really fast.

I'm personally not sure, if this is really a problem. Agree anyway, that simplified track should be as close to original track as possible, just more simple (less points).

Temporary solution, till I find some better method for simplification, is to modify parameter map_items_track_simplification_till_zoom , in configuration file.

Sorry for a complicated workaround, but I have to mark this as "known", which means I'm aware of it, but solution will have to wait a while. Thanks for understanding.


OK, yeah, I get that.

It's a little related to - if such a feature would get implemented, you would have the simplification algorithm for lower zooms "for free". But I see it's too complicated on its own.

Thx for the workaround tip, anyway :)

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