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While MySQL already provides some functionality to store and operate on geospatial data, the functionality leaves quite a lot to be desired and is far from providing full OpenGIS compatibility.
Most notably is that all functions that query spatial data only operate on MBRs (minimum bounding rectangles), to simplify the operations. More >>
GPX is a light-weight XML data format for the interchange of GPS data and it has been used/supported by hundreds of software applications. >>> GPX home
Paris, Lyon, Marseille, Toulouse, Lille, Nice; Nantes, Strasbourg, Montpellier, Rennes, Le Havre, Reims, Saint-Étienne, Toulon, Cannes, Grenoble, Angers, Dijon, Brest, Amiens, Aix-en-Provence, Limoges, Dunkerque, Saint-Malo, Troyes, Châlons-en-Champagne, Calais, Rouen, Caen, Poitiers, Clermont-Ferrand et Valence
« Man is a microcosm, or a little world, because he is an extract from all the stars and planets of the whole firmament, from the earth and the elements; and so he is their quintessence. » Philipus Aureolus Paracelsus
OpenStreetMap is an open source porject to collaboratively map the entire world. It can be considered a sort of wikipedia for maps.
An example can be found in Perry Bruins’ article « Track your position using a Windows Mobile 6 device« .
Google map maker is now available in more than 160 countries. However, the maps created by google can be seen only in google map maker, not yet available in google maps.
Comparing to OpenStreetMap, the maps created by google are owned intellectually by google.
The GMapCreator is a freeware application designed to make thematic mapping using Google Maps simpler. The application takes a shapefile containing geographic areas linked with attributes and automatically generates a working Google Maps website from the data. It does this by pre-creating all the necessary files and saving them into a directory. Publishing the map on the web is then just a matter of copying files onto a web server, allowing Google Maps to be used with the majority of ISPs.