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GeoTrellis 0.8 Has Arrived!


The GeoTrellis team is very excited to announce the availability of GeoTrellis 0.8 (codename “Atlantis”), which is a major new release that is a huge step forward toward our goal of a general purpose, high performance geoprocessing library and runtime designed to perform and scale for the web.

First of all, you should check out our new documentation site which features a great deal of new documentation and tutorial material. Credit is due to Rob Emanuele for the terrific new organization and layout.

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Secondly, take a look at the Azavea Labs blog Adam Hinz recently published (example running above) which describes process of building a kernel density service using GeoTrellis that features some of the new 0.8 functionality. Adam’s post details step-by-step the development of a WMS service that should be helpful as you think about how you might develop your own services with GeoTrellis. It is a companion blog to the Azavea Atlas blog series written by John Branigan that explores map algebra concepts through the process of creating a site suitability model using wildlife habitat preferences.

As you delve into GeoTrellis 0.8 in more depth, here are some new features you may want to explore:

  • A new suite of raster operations in the focal category of map algebra.
  • Simplified raster rendering with a built-in suite of color ramps for data cartography.
  • Zonal summary (by feature) operations, including a caching mechanism for tiled rasters for improved performance.
  • New vector feature framework for operations on points, lines, and polygons with a suite of vector operations, as well as re-engineered rasterization operations.

Please let the team know — via the geotrellis-user Google Group mailing list — if you have any comments or suggestions. We will likely release a minor bugfix release (0.8.1) in the future.

GeoTrellis is released under the GPL V3 license.