Re: gEDA-user: pcb GL can't render stretched arcs

[Andrew Poelstra <asp11@xxxxxx>]

On Wed, Jul 13, 2011 at 01:01:34PM -0700, Colin D Bennett wrote:
> On Wed, 13 Jul 2011 10:02:28 -0600
> Mark Rages <markrages@xxxxxxxxx> wrote:
> 
> > Stretched arcs are a misfeature.  Can they be deprecated?
> > 
> > Otherwise, they are just another object that cannot be rotated at
> > arbitrary angles.
> 
> There is no inherent reason elliptical arcs cannot be rotated
> arbitrarily.  Any restriction on such rotation is simply due to
> implementation faults in pcb.
>

The reason I bring this up is that the IsPointOnArc() in search.c
assumes a circular arc right now. ("Distance from elliptical arc
segment" is quite a tricky computational problem.)

You can see this problem by drawing an stretched arc and trying
to select and move it.

Being a math major and all, you'd think I could fix this, but it
eludes me...

-- 
Andrew Poelstra
Email: asp11 at sfu.ca OR apoelstra at wpsoftware.net
Web:   http://www.wpsoftware.net/andrew/



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