Unfortunately, the term GSS is used by W3C for "Graph Style Sheets"
visualizing RDF. Also, both SVG and SLD-SE extend CSS in ways which
are very appropriate to mapping, so it is a question why another
language may be needed.
--Josh
On Apr 26, 2009, at 1:05 AM, pamela fox wrote:
Cool!
Did you make up the GSS (geo style sheets) concept yourself, or is
that used elsewhere?
On Sun, Apr 26, 2009 at 9:20 AM, Sean Gillies <[email protected]>
wrote:
Jeff,
What's the motivation for not using SVG-CSS properties like stroke-
width,
fill, etc?
Sean
On Apr 25, 2009, at 2:39 PM, Jeffrey Warren wrote:
Hi all, and thank you for the feedback so far. It is indeed canvas/
HTML 5, and I don't anticipate problems with IE. Google's
iecanvas.js
brings canvas to ie6&7, and ie8 has an implementation of canvas,
though I haven't tested it thoroughly.
The most exciting parts for me are iPhone/android, and in general
the
idea of a full styling/scripting language for maps, that is, GSS.
You
can read a bit more about GSS at cartagen.org.
Best,
Jeff
On Apr 25, 2009, at 1:56 PM, Frank Hardisty <[email protected]
>
wrote:
Jeffrey and All,
Cool stuff, Jeffrey, I'll watch your progress with interest, and
perhaps try to contribute if you want help and can get it working
on
more platforms.
I would include in your description that it is HTML 5 Canvas-
based, if
you are trying to attract fellow developers. That's the golden
question, how to draw vectors in the browser. Flash is unappealing
because it is commercial. Canvas is sadly unsupported in the most
common browsers (IE 6,7). The situation with IE 8 and Canvas is not
clear to me.
How are you planning to implement IE 8 support?
regards,
-Frank
On Sat, Apr 25, 2009 at 11:09 AM, Jeffrey Warren <[email protected]>
wrote:
I'm working on a Javascript map renderer, non tile-based. It's
really
early-stage alpha, and not publicly released yet, but I'd love
some
feedback
from folks as I'm continuing to develop it.
http://cartagen.org - hold down 'r' and drag to rotate, scroll
wheel to zoom
(Takes a few seconds to load; i'm using OSM 0.6 api but plan to
move to a
local planet.osm db for speed)
Cartagen downloads point data and draws it using the <canvas>
element in
native HTML 5. This allows for animations, live/changing realtime
data, and
in general a complete scripting environment for displaying maps on
the
client side.
It's not been optimized yet, so loading is a little slow, but I'm
optimistic
that it will scale. Right now, though, I'd like to invite
comments,
criticisms, etc. and also participants as I'm shortly going to
open
source
this project.
Thanks!
Jeffrey Warren
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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[email protected]
GeoVISTA Center
212 Walker Building
Dutton e-Education Institute
434 Earth and Engineering Sciences Building
814-867-1471
http://www.geovista.psu.edu/grants/cdcesda/software/
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