Tim Sutton tim at linfiniti.com
Mon Jun 18 09:01:21 EDT 2007

Hi Sploid

Im probably not the one who would be able to help you, but I can say
that you are unlikely to get much help without giving much
information. I would suggest you post annotated some code so that we
can see where the problem is occurring...



2007/6/16, sploid <sploid at yandex.ru>:
>  I need to draw a straight line from a plenty of points ( 10 000 - 100
> 000 ).
>  If I use QgsMapCanvasItem:: paint, it too long.
>  I used method Douglas-Peucker (
> http://www.codeproject.com/cpp/dphull.asp ), but it is necessary for me more
> quickly.
>  How to increase speed of drawing?
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Tim Sutton
QGIS Project Steering Committee Member - Release  Manager
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