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Posted article on using Java for shaded-relief map images

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Recently, I contributed an enhancement to the open-source Apache Commons Imaging project to enable it to read high-resolution elevation data from the U.S. Geological Survey (USGS) Cloud-Optimized GeoTIFF files. GeoTIFFs are a variation of the TIFF image format that includes information that allows their imagery to be applied to map-based applications.

Anyway, I just posted an article and some example Java code describing how to use the GeoTIFF files to create shaded-relief map imagery. The article includes a basic algorithm for lighting and color rendering as well as some pictures that show off the quality of the USGS data. It also includes a bit of background on the GeoTIFF standard and links to some code for a B-Spline surface fitting class implemented in Java.

If you are interested in these topics, you can find the article at  The Gridfour Project's Elevation GeoTIFFs Article
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That's good stuff
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