We're looking into power grid visualization and were wondering if anyone could recommend a good java native lib (that plays nice with hadoop) to render some layers of geospatial data. At this point we have the cluster crunching our test data, formats, and data structures, and we're now looking at producing indexes and visualizations. We'd like to be able to watch the power grid over time (with a 'time slider') over the map and load the tiles in OpenLayers, OpenStreetMap, or VirtualEarth, so the engineers could go back and replay large amounts of high resolution PMU smart grid data, then zoom in/out, and use the time slider to replay it. So essentially we'll need to render the grid "graph" as a layer in tiles, and then each tile (at each level) through time. I'm hoping someone has done some work with hadoop and map tile generation and can save me some time in finding the right java lib. Suggestions on java lib for this? Josh Patterson TVA
