[Taxacom] Fwd: Yet another use for Google Maps

[Edward Baker]

For large number of records the use of a cluster manager can make the
display much more tidy, e.g. http://econym.org.uk/gmap/clusterer.htm

Ed


2009/8/11 Jim Croft <jim.croft at gmail.com>

And there does not seem to be much of a limit to how many records can
> be displayed by Googlemaps.  An implementation accessing the
> Australia's Virtual Herbarium cache can render c. 30k records of the
> genus Acacia across the continent without blowing up (but slowly).
> For an on-line freebie this is pretty impressive.  c. 8k records for
> Dodonaea no problem.
>
> Anyone had other experiences displaying large numbers of records in
> Google maps?  Presumably the limit depends on available memory?
>
> jim
>
> On Tue, Aug 11, 2009 at 7:42 PM, Bob Mesibov<mesibov at southcom.com.au>
> wrote:
> > Google Maps is a great online tool for planning and reviewing fieldwork.
> It offers zoomable road maps, the Google Earth satellite image layer and a
> hill-shaded terrain map with rough-enough contour lines. Like Google Earth,
> it also has Street View (where available on the ground), which gives
> ground-level views of sampling areas and their access.
> >
> > I've now started using Google Maps to plot specimen locality data as they
> accumulate. These data are entirely private - they haven't been uploaded to
> Google.
> >
> > The trick is very simple: build a KML file for the locality data and put
> it on a Web server to which you have access. Open Google Maps in a browser
> and put the URL for the KML file into the search bar, then click 'Search
> Maps'.
> >
> > If you've never had experience with KML: a KML file is just a text file
> with the suffix '.kml'. You can build one in any text editor. Below is the
> full text of a KML file which will plot 3 localities for species X - just
> the localities in this case, not any metadata. Latitude and longitude must
> be in decimal degree format, with the usual conventions that lats S of the
> Equator are negative and longs W of Greenwich are negative. The '0' after
> the long, lat is elevation, here set at ground level.
> >
> > <?xml version="1.0" encoding="UTF-8"?>
> > <kml xmlns="http://www.opengis.net/kml/2.2">
> > <Folder>
> > <Name>SpeciesX</Name>
> >
> <Placemark><name></name><description></description><Point><coordinates>Long1,Lat1,0</coordinates></Point></Placemark>
> >
> <Placemark><name></name><description></description><Point><coordinates>Long2,Lat2,0</coordinates></Point></Placemark>
> >
> <Placemark><name></name><description></description><Point><coordinates>Long3,Lat3,0</coordinates></Point></Placemark>
> > </Folder>
> > </kml>
> >
> > You can also open a .kml file on your own computer in the Google Earth
> application on your own computer (Windows users: right-click the file name
> in Explorer, 'Open with...' Google Earth). However, I'm finding Google Maps
> faster and more useful because of the road and terrain mapping.
> >
> > For a full treatment of KML, see
> http://code.google.com/apis/kml/documentation/kmlreference.html, but note
> that not all these features are supported in Google Maps.
> > --
> > Dr Robert Mesibov
> > Honorary Research Associate
> > Queen Victoria Museum and Art Gallery, and
> > School of Zoology, University of Tasmania
> > Home contact: PO Box 101, Penguin, Tasmania, Australia 7316
> > (03) 64371195; 61 3 64371195
> > Website: http://www.qvmag.tas.gov.au/mesibov.html
> >
> > _______________________________________________
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> > The Taxacom archive going back to 1992 may be searched with either of
> these methods:
> >
> > (1) http://taxacom.markmail.org
> >
> > Or (2) a Google search specified as:  site:
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> >
>
>
>
> --
> _________________
> Jim Croft ~ jim.croft at gmail.com ~ +61-2-62509499 ~
> http://www.google.com/profiles/jim.croft
> ... in pursuit of the meaning of leaf ...
> ... 'All is leaf' ('Alles ist Blatt') - Goethe
>
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>
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>
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