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GeoTrellis 0.8 Released, OpenTreeMap Android Following Closely


The GeoTrellis team announced last week the official release of GeoTrellis 0.8, codenamed “Atlantis.” GeoTrellis 0.8 represents a major step forward for the open source project, and includes:

In particular, vector operations are a significant new addition to GeoTrellis that’s come out of conversations with the community.

The release of GeoTrellis 0.8 is also accompanied by a supporting blog series on map algebra John Branigan and Adam Hinz have started, as well as a completely redesigned-from-the-ground-up documentation site by Rob Emanuele. If you’re curious, read John’s first Atlas blog about identifying a study area for the Western Jackalope using kernel density estimation in ArcGIS, then follow through with Adam’s Labs blog going over how to perform the same type of analysis with GeoTrellis. John recently posted his second blog in the series, diving further into the habitat model.

News from other Azavea open source projects includes progress towards the Android version of OpenTreeMap mobile. In particular, Sam Halperin recently posted a Labs blog documenting some of the mapping techniques the team has used in the Android version and giving us our first glimpse of screenshots! PhillyTreeMap for Android is already listed in the Google Play Store, and we hope to see Android apps for a few more cities including San Francisco’s UrbanForestMap and Sacramento’s Greenprint Maps listed in the near future. Once the team has polished up the Android code, we’ll release it on GitHub! Speaking of GitHub, the OpenTreeMap site was also given a fresh redesign by our own Brian Alexandrowicz. Finally, the recently released Asheville Tree Map for Asheville, North Carolina represents (as far as we know) the first publicly launched implementation of OpenTreeMap completed by a group other than Azavea or Urban Ecos using the open source code.