Hi all,
I started to add support for KML -> Exhibit JSON conversion in Babel.
This is very very basic for now. To try it, go to
http://service.simile-widgets.org/babel/
Select "KML" in the first column of radio buttons, "Exhibit JSON" in the
second, "data is on some web sites" in the third, and paste in this test URL
http://simile-widgets.googlecode.com/svn/babel/trunk/converters/kml-converter/tests/test1.kml
Here's what you're supposed to see
http://service.simile-widgets.org/babel/translator?reader=kml&writer=exhibit-json&mimetype=text/plain&url=http%3A%2F%2Fsimile-widgets.googlecode.com%2Fsvn%2Fbabel%2Ftrunk%2Fconverters%2Fkml-converter%2Ftests%2Ftest1.kml
To enable this in Exhibit (before it gets added to Exhibit officially),
add this code after including exhibit-api.js
<script>
Exhibit.BabelBasedImporter.mimetypeToReader["application/vnd.google-earth.kml+xml"]
= "kml";
Exhibit.importers["application/vnd.google-earth.kml+xml"] =
Exhibit.BabelBasedImporter;
</script>
Then, a KML data link would look like this
<link rel="exhibit/data" type="application/vnd.google-earth.kml+xml"
href="http://simile-widgets.googlecode.com/svn/babel/trunk/converters/kml-converter/tests/test1.kml";
/>
I haven't tested this Exhibit integration myself. I know of one small
catch, which is that the KML converter generates pairs of lng,lat,
whereas the Exhibit map view expects lat,lng. You can make the Exhibit's
original map view takes lng,lat with this hack
Exhibit.MapView._accessorSpecs[1].alternatives[0].bindings[0].bindingNames
= [ "lng", "lat" ];
If you're using the polygon map view used by
http://people.csail.mit.edu/dfhuynh/projects/election08/election08.html
then you'd just need this in the view div
ex:latlngOrder="lnglat"
Some more thoughts are needed if different data sources use different
lat/lng orders.
Please let me know how this works out for you.
David
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