And something else to try .. which I haven't tried, since I now believe
the problem isn't the drawing performance of a wide line, is to see
what happens if you do go that path - ie try 3,000 individual drawline
calls.
It depends how much overhead matters whether it is better than (say)
breaking it into 100 calls with 30 points to drawPolyline ..
-phil.
On 10/11/18, 4:15 PM, Phil Race wrote:
By the way, my actual application doesn't have 65000 lines but it
draws 3 graphs with about 3000 points, which makes it noticeably slow
when resizing the Window. I suppose I should look into cutting down
the number of points somehow...
