RE: [cgmo-webcgm] ISSUE: zero-valued LINE WIDTH, stroke-weight

[Robert Orosz <roboro@AUTO-TROL.com>]

Hi everyone,

I agree with Forrest, we can't change the profile with respect to zero
values for edge and line width.  This would likely break many existing
files.

To put this in terms of Lofton's choices in his original email, my opinion
is for option 1a on sub-ISSUE 1 (CGM attributes) and 2a on sub-ISSUE 2
(WebCGM Style Properties).

Regards,

Rob

-----Original Message-----
From: Forrest Carpenter [mailto:forrest@sdicgm.com]
Sent: Wednesday, May 25, 2005 1:11 PM
To: cgmo-webcgm@lists.oasis-open.org
Subject: RE: [cgmo-webcgm] ISSUE: zero-valued LINE WIDTH, stroke-weight



All,

There are many legacy CGM files that contain zero values for line width and
edge width, so we cannot change the spec to not draw zero width lines and
edges. I see no reason to treat a style of %0 any different than a line
width of 0 from the CGM. I would not like to have to keep track the source
of my zero line width (from a 0% style or a zero value in the CGM file) and
treat the rendering differently depending on the source of the value.


Regards,
Forrest



-----Original Message-----
From: Lofton Henderson [mailto:lofton@rockynet.com] 
Sent: Wednesday, May 25, 2005 11:36 AM
To: cgmo-webcgm@lists.oasis-open.org
Subject: [cgmo-webcgm] ISSUE: zero-valued LINE WIDTH, stroke-weight

WebCGM TC,

Attention implementors especially (Don, Forrest, Kevin, Ulrich, Dieter) ...

We agreed at the end of today's telecon that we needed opinions from all 
implementors on these two sub-issues:  permissibility and meaning of 
zero-valued LINE WIDTH (CGM attribute) and similar attributes; 
permissibility and meaning of zero-valued stroke-weight style property (and 
similar properties).

We also want to hear from users with strong use cases, of course.

I broke out the two sub-issues and options at the start of this thread (and 
Dieter already has replied once):
http://www.oasis-open.org/apps/org/workgroup/cgmo-webcgm/email/archives/2005
05/msg00103.html

-Lofton.