1,779 reputation
1018
bio website spatial.ucsb.edu
location Santa Barbara, CA
age 44
visits member for 4 years, 4 months
seen Jul 8 '13 at 21:27

Alan Glennon, PhD (2013) UCSB Geography. Network and spatial analytics. Twitter: @glennon Opinions are my own (not necessarily the university's)... etc. etc.


Aug
7
answered How would I create my own geocoding web service
Aug
6
revised How do I develop my GIS programming skills?
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Aug
6
revised How do I develop my GIS programming skills?
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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
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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
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Aug
4
answered Creating a custom OpenStreetMap tile server
Aug
4
revised How to represent bimodal attribute value distributions on a map
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Aug
4
answered In ArcMap 10.0, how do you vertical dock the Tools toolbar to the left of the map and right of the TOC?