Re: How to draw a simply dot in cairo?

[monkeymagic <paulharradine hotmail com>]

Gday,

I was annoyed that Cairo couldn't stroke a 1x1 Rectangle, although 2x1 or
1x2 work??

Anyway to draw a point I used:

context.LineWidth = 1.0;
context.MoveTo ((double) p.X + 0.5, (double) p.Y);
context.LineTo ((double) p.X + 0.5, (double) p.Y + 1.0);

where p is a Gdk.Point.

I think this is pretty efficient compared to Arc ...

:drunk:


dancefire wrote:
> 
> Hi,
> 
> I know how to draw line, arc(circle) in cairo. however, I cannot find the
> efficient way to draw a simple round dot. I tried arc(), it works,
> however,
> it is very slow. I need draw thousands of the small dot with different
> radius. arc() is a little bit slow to do that.
> 
> I also tried draw a rectangle with round cap, round join and 0 width and
> height. It works and seems faster than arc(). But I may in the wrong
> track.
> 
> Could anyone point me out, how to draw a lot of dot with different radius
> efficiently? Thanks.
> 
> -- 
> Tao Wang
> Microsoft Certified Technology Specialist
> CCNA
> 
> _______________________________________________
> gtkmm-list mailing list
> gtkmm-list gnome org
> http://mail.gnome.org/mailman/listinfo/gtkmm-list
> 
> 

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