[cairo] Questions about clipping
behdad at behdad.org
Tue Feb 20 09:58:50 PST 2007
On Tue, 2007-02-20 at 03:26 -0500, Enzo Ferrari wrote:
> I am a software developer trying to use the Cairo version 1.2.6 in my
> There's question I'd like to ask about clipping: I know that visible
> region has (0,0)-(1,1) range, but we need in some case to draw an object
> which contour is ALL outside the visible region.
Well, cairo's visible range is not (0,0)-(1,1) by default. You can make
it be so by using cairo_scale() though.
> For example: we'd like to draw a filled circle having radius greater
> than 0.5, centered in (0.5,0.5), resulting in a circle that is
> completely outside visible area.
> If I try to make this, Cairo crashes with an exception.
> How can I avoid this error? Are there some ways to correctly clip?
It shouldn't. Can you attach a simple test program showing this?
> Thanks in advance.
"Those who would give up Essential Liberty to purchase a little
Temporary Safety, deserve neither Liberty nor Safety."
-- Benjamin Franklin, 1759
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