Re: render_svg.c patch

[Mike Sowka <msowka rogers com>]

I just scoped Cyrille's email... 
here is the ?"proper"? for of the patch.
Thanx,
Mike

B.T.W I think I'm onto another bug... bug this time it's the diagrams in
the svg spec that are to blame :).

On Fri, 2002-08-30 at 11:36, Mike Sowka wrote:
> Hello,
> I've recently started using xml-docbook/svg for documenting my 4th year
> project... I managed to find some bugs in render_svg.c code. The bug
> occurs during rendering of arcs. It seems that the case of angles lying
> across 0degree boundary was not handled and the large-arc-flag was not
> being calculated properly... I've never sent a patch before...  here it
> is. For some reason my svgs are still not getting rendered properly...
> but at least the large-arc-flag is fixed....
> Mike 
> -- 
> /*******************************************************************\
> |      Mike Sowka                   o      _     _         _        |
> | An Aspiring Engi"Nerd"    _o     /\_   _ \\o  (_)\__/o  (_)       |
> |  Carleton University    _< \_   _>(_) (_)/<_    \_| \   _|/' \/   |
> | msowka@doe.carleton.ca (_)>(_) (_)        (_)   (_)    (_)'  _\o_ |
> | (home mike@sowka.com)                                             |
> \*******************************************************************/
> -- 
> /*******************************************************************\
> |      Mike Sowka                   o      _     _         _        |
> | An Aspiring Engi"Nerd"    _o     /\_   _ \\o  (_)\__/o  (_)       |
> |  Carleton University    _< \_   _>(_) (_)/<_    \_| \   _|/' \/   |
> | msowka@doe.carleton.ca (_)>(_) (_)        (_)   (_)    (_)'  _\o_ |
> | (home mike@sowka.com)                                             |
> \*******************************************************************/
> ----
> 

> 667,673c667
> <   int l_arc;
> < 
> <   if (angle2 > angle1) {
> <     l_arc = (angle2 - angle1) > 180;
> <   } else {
> <     l_arc = (360 - angle2 + angle1) > 180;
> <   }
> ---
> >   int l_arc = (angle2 - angle1) > 180;
> 703,709c697
> <   int l_arc;
> < 
> <   if (angle2 > angle1) {
> <     l_arc = (angle2 - angle1) > 180;
> <   } else {
> <     l_arc = (360 - angle2 + angle1) > 180;
> <   }
> ---
> >   int l_arc = (angle2 - angle1) > 180;
-- 
/*******************************************************************\
|      Mike Sowka                   o      _     _         _        |
| An Aspiring Engi"Nerd"    _o     /\_   _ \\o  (_)\__/o  (_)       |
|  Carleton University    _< \_   _>(_) (_)/<_    \_| \   _|/' \/   |
| msowka@doe.carleton.ca (_)>(_) (_)        (_)   (_)    (_)'  _\o_ |
| (home mike@sowka.com)                                             |
\*******************************************************************/
-- 
/*******************************************************************\
|      Mike Sowka                   o      _     _         _        |
| An Aspiring Engi"Nerd"    _o     /\_   _ \\o  (_)\__/o  (_)       |
|  Carleton University    _< \_   _>(_) (_)/<_    \_| \   _|/' \/   |
| msowka@doe.carleton.ca (_)>(_) (_)        (_)   (_)    (_)'  _\o_ |
| (home mike@sowka.com)                                             |
\*******************************************************************/
667,673c667
<   int l_arc;
< 
<   if (angle2 > angle1) {
<     l_arc = (angle2 - angle1) > 180;
<   } else {
<     l_arc = (360 - angle2 + angle1) > 180;
<   }
---
>   int l_arc = (angle2 - angle1) > 180;
703,709c697
<   int l_arc;
< 
<   if (angle2 > angle1) {
<     l_arc = (angle2 - angle1) > 180;
<   } else {
<     l_arc = (360 - angle2 + angle1) > 180;
<   }
---
>   int l_arc = (angle2 - angle1) > 180;