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Long ways drawn dashed slow down drawing speed #1437

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openstreetmap-trac opened this issue Jul 23, 2021 · 1 comment
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Long ways drawn dashed slow down drawing speed #1437

openstreetmap-trac opened this issue Jul 23, 2021 · 1 comment
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Component: merkaartor Priority: major Resolution: invalid Type: enhancement

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Reporter: ColinMarquardt
[Submitted to the original trac issue database at 12.25am, Sunday, 4th January 2009]

A long way that is drawn with dashes seems to slow down Merkaartor considerably. I noticed this on boundary=administrative (usually pretty long ways, often extending beyond the requested download area) with MapnikPlus, where switching off the dashes made things much more responsive.

If something can be done in Merkaartor to speed this up, it would be cool, otherwise I'll change the MapnikPlus to not use dashes for boundaries (making it a little bit less WYSIWYG :)
@openstreetmap-trac openstreetmap-trac self-assigned this Jul 23, 2021
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Author: koying
[Added to the original trac issue at 12.06pm, Wednesday, 14th January 2009]

I'm afraid it's pure Qt. I hope Qt 4.5 will enhance the painting performances...

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Component: merkaartor Priority: major Resolution: invalid Type: enhancement
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