applications -pg电子麻将胡了

compute and visualize line-of-sight visibility of an aircraft from a ground location over terrain.

compute and visualize access intervals between the apollo command and service module and a rover on the lunar surface. the module's orbit is modeled using reference trajectory #2 from the nasa report variations of the lunar orbital parameters of the apollo csm-module [2]. this is a lunar orbit studied by nasa for the apollo program. the example uses: