To build Library Make to build test executables in main directory: make image_open make image_data make image_copy this copies executables into bin/ to run test code ./test.sh the file ossim_ada.pbproj is a project file for os x IDE copy_ali.sh is part of os x IDE scripts to install the library test_files are some simple test files Source test program source code C_Bindings - c bindings to the c++ classes Ada_Bindings - Ada bindings. the ada tagged types mostly mirror the ossim class structure which is documented on ossim website. let me know if you have questions. i am working on a UML model of the bindings. the test code though shows how easy it is to use. for example ossim_copy test shows how to take a dted file and convert it to jpeg (use image_copy with no arguments to see the list of file types it knows how to write, it can read many more types than it can read) best jim