Simon Willison’s Weblog

Items tagged googlemaps, maps

Filters: googlemaps × maps ×

Is there an open source (or freely accessible) database of geofence coordinates for common places, such as cities or national parks?

Take a look at Flickr’s openly licensed shapefiles:

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Does the Google Maps API let you remove details of the map such as street names to focus on pins on the map?

Yes—you can do this with map styles (which allow you to set the visibility if road labels, among other things):

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Cartographer.js. “Thematic mapping for Google Maps”—which means an easy way of adding heat maps (aka chloropleths), pie charts and point clusters as a layer over a Google map. # 1st November 2009, 1:20 pm

Making Image Overlays Easy with GGroundOverlay and GGeoXML (via) Surprisingly, there doesn’t appear to be a good online tool for helping align an overlay image with a Google Map and exporting the result as a KML file. This is the best I could find—Yahoo! used to have a tool called MapMixer but it doesn’t seem to exist any more. # 30th July 2009, 10:58 pm

FOWA London—Beyond GoogleMaps. Andrew Turner’s talk at FOWA was the most information dense presentation I’ve ever seen, and discussed a huge number of cool geo projects that I’d never previously heard of. Andrew links to the full slides and video, well worth a watch. # 17th October 2008, 2:01 pm

KML: A new standard for sharing maps. Google’s KML format, which is already supported by both Microsoft and Yahoo!’s map software, has been accepted under the wing of the Open Geospatial Consortium and is now an international standard. # 14th April 2008, 6:36 pm

Google Maps Clusterer. I’ve looked at a few clustering libraries for Google Maps, but this one seems to have the nicest API. # 28th January 2008, 3:07 pm

Get Lat Lon. I finally got fed up of hunting around for simple latitude/longitude tools when messing around with mapping APIs, so I built my own with a memorable URL. I plan to add new features as and when I need them. # 12th October 2007, 2:14 pm

Introduction and Yahoo! Pipes. The official Google Maps API blog describes how to plot KML output from Yahoo! Pipes. # 3rd May 2007, 10 pm

Google My Maps: Bodeans. I’ve been talking about how useful a simple tool for creating custom maps would be for ages... looks like Google beat me to it. Here’s one I created showing the location of Bodeans, an excellent Kansas-style BBQ joint in Soho, London. It’s a shame the URLs suck. # 5th April 2007, 5:40 pm (via) Brilliant Google Maps mashup in a similar vein to Chicago Crime—displays screen-scraped bus timetable information for Oxfordshire and Surrey in a far more useful format. # 10th February 2007, 10:56 pm

Google Maps and XSL

I’ll probably write more on this later, but it seems that Google Maps is using XSL. I spotted it loading the following pages while sniffing its activity with LiveHTTPHeaders:

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