Opened 11 years ago

Closed 10 years ago

#1280 closed defect (fixed)

Map update very slow with Mapnik.Plus & Zoom

Reported by: dantje Owned by: cbro@…
Priority: minor Milestone:
Component: merkaartor Version:
Keywords: Cc:

Description

If you download a bigger area and zoom in, the Mapnik.Plus style is very slow in updating the map. Other styles are faster. If you zoom out again, it performs considerably better.

Change History (3)

comment:1 Changed 11 years ago by Colin Marquardt

I don't know how to fix it, but could it be that a lot less icons or text gets shown when you are zoomed out? I don't really see such a slowness here though, even when I look at a crowded area (downtown Dresden, with many icons, text for both nodes and ways, areas, relations...).

comment:2 Changed 11 years ago by Colin Marquardt

Could it just be a coincidence that you seem to have the problem with MapnikPlus? and not with other styles?

I found that Merkaartor gets slow (sometimes very slow) in certain areas. Investigating a bit more, it seems to be related to relations (wasn't that a nice pun?). I.e., when you download the area near http://openstreetmap.org/?lat=51.13347&lon=13.61822&zoom=16&layers=B000FTF, you will get the rather big relation 36823 (Zitzschewig), and as soon as that is in Merkaartors map, it gets slow. It seems to help a bit to disable viewing relations (I normally have them shown), but not much. If that's not the case for you, I'll open another ticket.

comment:3 Changed 10 years ago by Chris Browet

Resolution: fixed
Status: newclosed

I tend to think this has been resolved by the numerous drawing optimisations (+ NVIDIA_HACK?). Please re-open otherwise.

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