Re: Spatial Data on the Web and SVG : Comments on Spatial Data on the Web Use Cases & Requirements

2015-07-24 9:43 GMT+02:00 Satoru Takagi <sa-takagi@kddi.com>:

> Hello.
> I read Spatial Data on the Web Use Cases & Requirements note with
> fascination.
>
> As one the editor of SVG2, I am working on standardization of SVG.  The
> motivation of the standardization for me is mapping of geospatial
> information. I am searching for construction of WWW which geospatial
> information and non-geospatial information fused there.
>
> SVG expresses vector drawing information. However, it is almost equivalent
> to vector geometry as used in the context of geospatial information. And
> SVG has united with HTML, and web browsers interprets and draws it
> natively. Accordingly, web browsers provides high-quality and high-speed
> renderings without a massive Web apps for SVG.
>
> And, SVG will improve the suitability as geospatial information more by
> future evolution. Recent SVG standardization work contains advanced line
> styling and markers, advanced animations, non-scaling objects, tiling,
> layering, level of detail and the concept equivalent to the topology of
> polygon etc.
>
> Incidentally, our company is operating WebGIS which used SVG as geospatial
> information as in-company information systems, and we realize that
> potential.
> Do you get interested in SVG as geospatial information? I wonder that your
> activity and SVG should just become more familiar.


> Regards,
>
> Satoru Takagi
>
> W3C AC Representative, SVG2 Editor
>
> KDDI CORPORATION, R&D Strategy Department,
> Technology Development Division
>


Hello,

Thank you for your message and for bringing SVG to our attention. SVG has
been brought up in discussions on the Spatial Data on the Web e-mail list,
notably:

   - https://lists.w3.org/Archives/Public/public-sdw-wg/2015Feb/0076.html
   - https://lists.w3.org/Archives/Public/public-sdw-wg/2015Mar/0002.html
   - https://lists.w3.org/Archives/Public/public-sdw-wg/2015Jun/0059.html

But so far an explicit mention of SVG has not made it to the Use Cases &
Requirements document. We do have a general requirement for Compatibility
with existing practices
<http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#Compatibility>.
As it is phrased now, it is about existing practices for making data
available. SVG could be viewed as such a practice, but it could also be
viewed as an existing practice for visualisation of spatial data. I think
we should at least consider bringing SVG into that requirement.

Personally, I think SVG is a nice way of displaying geographical data on a
web page, especially in combination with CSS3. I am curious: are there any
plans to have 3D data in SVG? Or to have spherical coordinate reference
systems? Such things would go well with spatial data.

Greetings,
Frans

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Frans Knibbe
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