HillsFramePlot:

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   Plot the trajectory in Hills frame and show the x-z, x-y projections.

   Since version 7.
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   Usage:
   figH = HillsFramePlot( rH );
     -or-
   figH = HillsFramePlot( rH, [], color );
     -or-
   HillsFramePlot( rH, figH );
     -or-
   HillsFramePlot( rH, figH, color );
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   ------
   Inputs
   ------
   rH            (3,:)  Relative position in Hills frame [km]
   figH           (1)   Figure handle (optional)
   color          (:)   Color of projection area

   -------
   Outputs
   -------
   figH           (1)   Figure handle
   
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Children:

Common: Graphics/AddView
Common: Graphics/AddZoom
FormationFlying: Coord/IsCircGeom
FormationFlying: Coord/RotateState
FormationFlying: Transformation/Goals2Hills