Re: [rfc-i] getting SVG of RFC diagrams

Carsten Bormann <cabo@tzi.org> Thu, 23 November 2023 15:27 UTC

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From: Carsten Bormann <cabo@tzi.org>
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Date: Thu, 23 Nov 2023 16:27:35 +0100
Cc: Michael Richardson <mcr+ietf@sandelman.ca>, rfc-interest@rfc-editor.org
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To: Paul Hoffman <paul.hoffman@vpnc.org>
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Subject: Re: [rfc-i] getting SVG of RFC diagrams
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On 2023-11-23, at 16:16, Paul Hoffman <paul.hoffman@vpnc.org> wrote:
> 
> On 23 Nov 2023, at 2:23, Michael Richardson wrote:
> 
>> The question is: how to make these SVG files more easily available from the
>> HTML version of the RFC?
> 
> Pedantically, it is not an SVG file but instead is an SVG element of the HTML.

(And of the XML — that’s why my original code didn’t work.)

> The first figure in that RFC has the code:
>         <div class="alignCenter art-svg artwork" id="section-3-2.1.1">
> <svg xmlns="http://www.w3.org/2000/svg" version="1.1" height="416" width="560" viewBox="0 0 560 416" class="diagram" text-anchor="middle" font-family="monospace" font-size="13px">
> 
> A possible (and backwards-compatible!) solution would be to add an id to each SVG element, which would then be a hoverable link.

A fragment identifier doesn’t really help with extracting (while it would help with naming extracted SVG elements, but that is easy by using the id on the div above).

(I think the underlying problem here is that browsers don’t provide for image extraction for SVG — does anybody know why?)

> I don't know if this in fact works; HTML experts here would. If it could work, please propose it for XMLRFCv3.1 over on the RSWG.

I don’t think the RSWG designs the HTML.

I don’t understand why we would want the HTML file to autonomously provide extraction of attachments; I’m more interested in having a separate URI for each attachment similar to the way Paul Kyzivat showed.

Grüße, Carsten