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Subject: Re[2]: [cgmo-webcgm] WebCGM and the <object> tag
Hi all, I just want to clarify a few things. It is pretty clear to me that the compliant way of embedding foreign object into HTML is via the <object> tag. HTML defines the mechanism to load the appropriate activeX or applet with the MIME type and 'data' attribute. WebCGM and SVG make the same statements and our test suite should follow the standard. However, I do not believe that the development of a test suite should be put on hold because viewers don't support 'data'. We need to start working on this thing soon. It will be a lot of work. In my opinion, 'data' (or scripts like my proposed workaround -also compliant-) will have to be used for the published test suite. -- Benoit mailto:benoit@itedo.com Tuesday, December 7, 2004, 2:49:47 AM, Dieter wrote: DW> It is a subtle point, whether the WebCGM standard can place conformance DW> requirements on HTML content that references WebCGM instances. However the DW> prescription in WebCGM (section 3.4) is unambiguous: >>The only standard way to reference in-line CGMs from HTML documents is >>through the OBJECT tag, using the DATA attribute for the CGM file and the >>TYPE attribute to specify the full Mime Type. The minimal tag for adding >>CGM into a document would be: >><OBJECT DATA="xxx.cgm" TYPE="image/cgm;Version=4;ProfileId=WebCGM"; >>WIDTH=200; HEIGHT=100> DW> -Lofton. DW> I agree, but I think the wording is not really clear enough. DW> What does "reference" mean? DW> An OBJECT tag is an integral portion of the HTML content, so it is included DW> in the document. it uses parameters that point to a MIME type and to DW> a CGM file. DW> This is NOT an inline CGM in the sense as SVG does inline SVG. DW> I agree that it is difficult to place conformance requirements on HTML, how DW> does SVG do it? DW> What if there is only an href in the HDML that is being clicked upon, and DW> the DW> result is a new window with a viewer it it WITHOUT an OBJECT tag? DW> What if the src parameter of a window is set to point to a WebCGM file? Is DW> this DW> invalid? DW> What if we use the DOM to steer this? DW> Probably the best way to handle this variety of options is to say "viewers DW> are expected DW> to handle OBJECT tags with the following parameters" or similar. DW> Ideas?
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