OSMHeightField developed in 2013
Reading OSM polygons (closed ways) and interpolating "el"-values and "id"-values over the polygon area.
Examples:
Height interpolation java -cp .;jai_imageio-1.1.jar HeightGrid data/KL_Nord3.osm 0
Id interpolation java -cp .;jai_imageio-1.1.jar HeightGrid 10.0 data/KL_Nord3.osm 1