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Re: Feedback Request: Difference Between Scroll and Pan?

From: Andreas Neumann <a.neumann@carto.net>
Date: Tue, 23 Sep 2008 08:49:58 +0200 (CEST)
Message-ID: <26885.193.246.86.39.1222152598.squirrel@webmail.customers.iirc.at>
To: "www-svg" <www-svg@w3.org>

I agree that
svg:not(:root) { overflow: hidden }
should be the default.

Authors should have a choice if content can be pannable/zoomable (setting
zoomAndPan="disable" should also disable scrollbars and panning
mechanisms). Authors should also have a choice how the content can be
panned, be it with scrollbars or with a pan cursor/pan hand.

If the content is pannable/zoomable there should be a visual indication
that it can be panned/scrolled. Scrollbars are good in providing a visual
clue how large the panning area is and how much of it is currently
displayed. But often scrollbars are very ugly and disturbing and may not
fit into the design of a web application. Scrollbars are also not very
efficient for navigation.

On the other hand, panning with just a simple pan hand provides no visual
clue how big the pannable area is. I like the idea of a more complex pan
cursor indicating in which directions I can pan and how much (at least
very roughly). We could ask some designers to come up with suggestions for
an interactive pan cursor.

Andreas


>
> Hi, SVG Community-
>
> Based on feedback from browser vendors, and following some
> implementations, the SVG WG is considering changing the way SVG handles
> the 'overflow' property on the SVG root.  This has implications on
> whether scrollbars would appear for SVGs.  Clearly, sometimes this is
> desirable, but other times it may not be.  The SVG WG is seeking author
> feedback on this issue, before we make a decision.
>
> If you are interested in this topic, please read this thread:
>
>  http://lists.w3.org/Archives/Member/w3c-svg-wg/2008JulSep/0013.html
>
> This will affect how browsers handle SVG 1.1 content, so please do let
> us know if this impacts you (positively or negatively).
>
> Regards-
> -Doug Schepers
> W3C Team Contact, SVG and WebApps WGs
>
>


-- 
Andreas Neumann
Böschacherstrasse 6, CH-8624 Grüt/Gossau, Switzerland
Email: a.neumann@carto.net, Web:
* http://www.carto.net/ (Carto and SVG resources)
* http://www.carto.net/neumann/ (personal page)
* http://www.svgopen.org/ (SVG Open Conference)
* http://www.geofoto.ch/ (Georeferenced Photos of Switzerland)
Received on Tuesday, 23 September 2008 06:50:42 GMT

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