section p of routines in hex.i

Home Manual Packages Global Index Keywords Quick Reference | # functions in hex.i - p
pic3_rays |
                 rays= pic3_rays(xpict, ypict, ray)
              or rays= pic3_rays(xpict, ypict, ray, q_up)

         Like picture_rays, but returns rays in the [p,q] representation
         appropriate for hex5_track.
         (XPICT,YPICT) are 2D arrays of pixel corners in the image plane;
         RAY is the central ray (0,0) in (XPICT,YPICT) coordinates, given
         in [p,q] representation (i.e. RAY is a 3-by-2 array).  The
         optional Q_UP is a 3-vector specifying the orientation of the
         y-axis in the picture plane (see theta_up, phi_up in picture_rays
         for a description of default orientation).  Q_UP must not be
         parallel to RAY(,2).

    interpreted function, defined at i0/hex.i   line 94
SEE ALSO: | hex5_track, conv3_rays, picture_rays