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<DIV>And available on the OGC website.</DIV>
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<DIV>Cheers</DIV>
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<DIV>Carl</DIV>
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<DIV style="font-color: black"><B>From:</B> <A title=cameron.shorter@gmail.com
href="mailto:cameron.shorter@gmail.com">Cameron Shorter</A> </DIV>
<DIV><B>Sent:</B> Monday, August 19, 2013 3:21 PM</DIV>
<DIV><B>To:</B> <A title=standards@lists.osgeo.org
href="mailto:standards@lists.osgeo.org">standards@lists.osgeo.org</A> </DIV>
<DIV><B>Subject:</B> Re: [OSGeo-Standards] An idea about a compressed binary
geometry format</DIV></DIV></DIV>
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<DIV class=moz-cite-prefix>Hi Nicklas,<BR>You might want to look into Binary
XML, which I understand was being investigated for GML at one point - apparently
into a white paper according to:<BR><A
href="http://en.wikipedia.org/wiki/Binary_XML">http://en.wikipedia.org/wiki/Binary_XML</A><BR><BR>On
20/08/13 06:27, Nicklas Avén wrote:<BR></DIV>
<BLOCKQUOTE cite=mid:1376944071.4383.36.camel@gis-debian type="cite"><PRE wrap="">Hallo
I do not know if this list is the right place so that will be my first
question.
I have a naive idea about a compressed binary format for geometries.
I have done some work to sketch what it is about.
The name so far is TWKB (Tiny WKB)
Can this list be the right place to discuss this format. It is just an
embryo, and my hope is that it can be something designed by and hard
connected to the FOSS4G-community.
What is done is:
A draft of a spec:
<A class=moz-txt-link-freetext href="https://github.com/nicklasaven/TWKB/blob/master/twkb.md">https://github.com/nicklasaven/TWKB/blob/master/twkb.md</A>
including ideas from Evan Rouault and Oliver Tonnhofer
Demos:
Streaming TWKB from PostGIS to Leaflet via websocket.
<A class=moz-txt-link-freetext href="http://178.79.156.122/twkb_node/">http://178.79.156.122/twkb_node/</A>
Streaming TWKB-aggregates (tiles created on the fly) from PostGIS to
Leaflet
<A class=moz-txt-link-freetext href="http://178.79.156.122/twkb_agg">http://178.79.156.122/twkb_agg</A>
A page to compare twkb in timing and size with geoJSON directly from
PostGIS.
<A class=moz-txt-link-freetext href="http://178.79.156.122/twkb_test">http://178.79.156.122/twkb_test</A>
Examples of implementation.
The PostGIS part is in the trunk:
<A class=moz-txt-link-freetext href="http://svn.osgeo.org/postgis/trunk/">http://svn.osgeo.org/postgis/trunk/</A>
The client parts is exemplified here:
<A class=moz-txt-link-freetext href="https://github.com/nicklasaven/twkb_web">https://github.com/nicklasaven/twkb_web</A>
So, first, can this list host discussions about TWKB (or whatever name
it gets)?
If not where should it go?
Second, any feedback is very welcome
Best Regards
Nicklas Avén
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</PRE></BLOCKQUOTE><BR>
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