NAME
          DtCameraGetHeightAngle - Get the given camera's height
          angle.


     SYNOPSIS
          #include <Dt.h>


          int  DtCameraGetHeightAngle( int cameraID, float *angle )


     DESCRIPTION
          DtCameraGetHeightAngle() returns the height angle, via the
          pointer to the angle parameter, for the camera cameraID. The
          height angle is in radians.  (from camera->angleOfView() )


     DIAGNOSTICS
          returns one on success and zero on failure.


     FILES
          Link with -lDtOMio