RE: [cgmo-webcgm] fontmap xml coding

[Lofton Henderson <lofton@rockynet.com>]

Hi Dieter,

The DTD says:

<!ELEMENT webcgmConfig ( fontMap?, defaultAttributes? ) >

"?" means zero or one, right?

So as written now, it would be one fontMap per ACI file.  Notice that Ch.9 
[1] addresses "viewer" only.  I think we had some discussion about this in 
Boston -- need to go look it up in the minutes.

Opinion...

In fact, the conformance criteria of WebCGM (1.0, 2.0, 2.1) address 
"viewer".  IIRC about past discussions, I think that conformance criteria 
for Editors (or even simple Generators) were considered to be a can of 
worms, so we stuck with the simpler viewer criteria.  (Even "interpreters" 
can be hard to specify, because there is not necessarily a viewed image to 
be used as a metric of correctness.)

In one perspective, an editor is a viewer (or interpreter) coupled with a 
generator.  So Ch.9 as it stands could be construed to apply to the input 
portion of an editor.  In principle, one could write something similar for 
the output portion, and then work up a scheme for association of the 
ACI-out file with the editor or generator.  (That "something" could even 
borrow heavily from the Ch.9 input portion.)

I fear that it would be a can of worms to try to sort out a single 
definition of ACI file that contained within itself the ability of a single 
ACI instance to address both the input and output side of an editor.  Just 
my opinion.

[1] 
http://www.w3.org/TR/2008/WD-webcgm21-20080917/WebCGM21-Config.html#ACI-scope

-Lofton.

At 02:58 AM 1/31/2009 -0500, Weidenbrueck, Dieter wrote:
>All,
>
>can there be only one fontmap or two?
>
>The reason why I ask is that an interpreter only needs a font mapping
>from a CGM font to a display font.
>An editor may need the exact opposite as well: a table mapping from
>display fonts to the desired CGM fonts.
>
>Dieter
>
>-----Original Message-----
>From: Robert Orosz [mailto:roboro@auto-trol.com]
>Sent: Samstag, 31. Januar 2009 01:51
>To: 'Don'; CGM Open WebCGM TC
>Cc: Dave Cruikshank
>Subject: RE: [cgmo-webcgm] fontmap xml coding
>
>Don,
>
>cgmFont is an attribute of maplist, so there can only be one per maplist
>element.  The content model does allow multiple maplist elements.  Your
>example should look like this.
>
><webcgmConfig>
>
>   <fontmap>
>     <defaultFont useFont=Arial>
>     <maplist cgmFont="Helvetica" substitutionList="Arial, sans-serif"/>
>     <maplist cgmFont="Times-Roman" substitutionList="New Times Roman,
>serif"/>
>   </fontmap>
>
></webcgmConfig>
>
>Note that the forceSubstitution attribute defaults to yes, so I left it
>out.
>
>Regards,
>
>Rob
>
>-----Original Message-----
>From: Don [mailto:dlarson@cgmlarson.com]
>Sent: Friday, January 30, 2009 5:03 PM
>To: CGM Open WebCGM TC
>Cc: Dave Cruikshank
>Subject: [cgmo-webcgm] fontmap xml coding
>
>
>All
>
>To all XML experts. I would like feedback on my following the XML
>encoding
>of a fontmap in an ACI file.
>
>Is this correct?  I'm not sure of coding for multiple instances of
>cgmFont?
>
>
><webcgmConfig
>
>   <fontmap>
>     <defaultFont useFont=Arial>
>     <maplist>
>       forceSubstituion="yes"
>       cgmFont="Helvetica"
>       substitutionList="Arial, sans-serif"
>       cgmFont="Times-Roman"
>       substitutionList="New Times Roman", serif"
>     </maplist>
>   </fontmap>
>
></webcgmConfig>
>
>
>Regards,
>Don
>
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