Re: XForms: a wee bug report for image rotation.

From: Angus Leeming (a.leeming@ic.ac.uk)
Date: Tue Apr 09 2002 - 11:06:27 EDT


On Tuesday 09 April 2002 3:09 pm, Angus Leeming wrote:
> # To subscribers of the xforms list from Angus Leeming <a.leeming@ic.ac.uk>
> :
>
> Steve, here's a little bug report for your list of bug reports...
>
> The following report was posted by a LyX user:
>
> On Tuesday 09 April 2002 3:43 pm, Herbert Voss wrote:
> > Claus Hindsgaul wrote:
> > > Hi,
> > >
> > > Using the current 1.2.0cvs I just noticed that I cant rotate graphics
> > > by 270 degrees. 90, 180, 269 and 271 degrees work just fine --- just
> > > not 270 degrees...
> >
> > seems to be a bug in xforms. Angus?
> >
> > In RotateMatrix [image_rotate.c 239] InternalError: bad special angle
> >
> > Herbert
>
> This really is an xforms bug.
>
> In flimage_rotate you normalise the angle to lie in the
> range 0 <= angle < 360 and then in rotate_matrix assume
> that it lies in the range -180 <= angle < 180.
>
> Clearly trivial to fix but nice to see that Open Source is a Good Thing.
>
> Kind regards,
> Angus

Just because I'm nice, here's the patch...
A



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