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Subject: re: [cgmo-webcgm] ISSUE: change VDC to NVDC in OBJECT?
Lofton, 2A sounds like the best way to go. Regards, Don. > From Dieter's comments: > http://lists.oasis-open.org/archives/cgmo-webcgm/200506/msg00021.html > ISSUE: should 2.0 change VDC to NVDC in the VIEWPORT 'param' sub-element > of the 'object' element? > >VIEWPORT topx topy botx boty > >This should no longer use VDC coordinates but NVDC instead. > DISCUSSION. We have defined NVDC to be the coordinate system of DOM > transactions with the metafile. WebCGM 1.0 defined VDC to be the > coordinates to used for VIEWPORT 'param' sub-elements of the 'object' > element, in HTML content. Changing the specification for 2.0 would mean > that any 1.0 HTML documents would break with a 2.0 viewer. > Alternative 1. Leave 1.0 specification as is (VDC) for 2.0. > Alternative 2. Define a new 'param', VIEWPORTN, with NVDC coordinates and > deprecate the VIEWPORT (VDC) 'param'. > (Note: I'm not proposing "change VDC to NVDC for VIEWPORT", because I > think it's a bad policy to make changes that break existing content.) > RECOMMENDATION: Alt.1 -- leave it as is. > Regards, > -Lofton.
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