drawing a path efficiently

[James dean]

When i draw a path with many points the editing becomes slow. I ran
devPartner and it said that the GDI+ method "GetPathPoints" was taking
up alot of processing time. Also GetPathOutline is slow. Has anybody got
advice on the most efficient way to draw paths in C#.

 

[Bob Powell [MVP]]

Your intentions are not very clear.

I guess that you're editing a user-drawn shape of some kind? Storing the
shape as a GraphicsPath probably isn't very efficient.

You can draw a path using Graphics.DrawPath and fill it using
Graphics.FillPath.

Perhaps you should explain a bit more.

--
Bob Powell [MVP]
Visual C#, System.Drawing

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[James dean]

Yeah well i have a specific problem with drawing a polyline. When there
are many points in the polyline then any editing is slow. When any
editing is done then all path points are redrawn...this is inefficient.
Whats the best way to draw a polyline with many points.