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Aug
7
comment How would I create my own geocoding web service
Inquiries about semantic similarity algorithms may have more respondents on the main stackoverflow site.
Aug
7
comment Great GIS, maps & cartography quotes
Reference for Tobler's law: Tobler W., (1970) "A computer movie simulating urban growth in the Detroit region". Economic Geography, 46(2): 234-240.
Aug
7
answered How would I create my own geocoding web service
Aug
6
revised How do I develop my GIS programming skills?
added 42 characters in body
Aug
6
revised How do I develop my GIS programming skills?
added 507 characters in body; added 18 characters in body; deleted 59 characters in body; deleted 11 characters in body; added 3 characters in body
Aug
6
answered How do I develop my GIS programming skills?
Aug
6
revised How to calculate distance between two locations using stored procedure in MySQL?
edited tags
Aug
6
comment Which tools and methods can be used to create isochrones?
It might be useful to provide a little more detail about your data. Generally, if you have a set of points with a magnitude value (you may need to normalize time data so the software can treat it more easily as an attribute), do a surface interpolation and then use an isoline generator. Many GIS packages have this functionality. For example: surfaces.co.il/?p=578
Aug
6
awarded  Commentator
Aug
6
comment What tools in Python are available for doing great circle distance + line creation?
+1 Didn't see functionality to do intermediate points along the geodesic, but very good toolset to know about (handles ellipsoid calcs). Thx.
Aug
5
awarded  Organizer
Aug
5
comment Live KML from PostGIS to Google Earth
per poster's request, google-earth tag added.
Aug
5
revised Live KML from PostGIS to Google Earth
edited tags
Aug
5
comment List of Virtual Globes
A few additional notes: Wikipedia listing of virtual globes and capabilities: en.wikipedia.org/wiki/Virtual_globe KDE Marble project looks active; uses OpenStreetMap. edu.kde.org/marble
Aug
5
awarded  Student
Aug
5
revised List of Virtual Globes
added 55 characters in body
Aug
5
asked List of Virtual Globes
Aug
5
comment Representation of network flows
* * When flows are tightly packed, data can become more like a continuous surface. To represent such data, you can use heat maps, isolines, vector fields, etc. * * Decoupling the data from actual space will make a cartogram or graph (and these can be very elegant), but usually at the loss of geographic context. You'll need to balance your application with such trade-offs. * * The third choice is to find a way to aggregate and simplify your flows so the linear components individually still have visual meaning.
Aug
4
revised Creating a custom OpenStreetMap tile server
deleted 3 characters in body
Aug
4
answered Creating a custom OpenStreetMap tile server