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Module gr_arc_spline

    gr_arc_spline - a tool for XY(Z)-point files
    Jens Trapp for DLR Gottingen
    email        : Jens.Trapp@DLR.De
    Main Status    : Version 3.0     Jun 20 1995
    Tool Status    : Version 2.0    Jun 20 1995
    Splining 2 or 3D point data.
Different parmetrizations can be chosen.
    For default parametrization all
points must be distinct.
    -[edge eps g nh o v noc nof now skip f m c e i s l]
    -help    For help on all options.
Special Options:
    -g name        File for the knots. (Default: equidistant knots)
    -n int        Number of points to be splined. (Default: 100)
    -edge float    Accuracy at edge. (Default: 0)
    -eps float    Accuracy for taking known points. (Default: 0)
    -arc        Using arc length parametrization.
    -normx        Using (x[i+1]-x_[i])*(x[i+1]-x_[i])
    -absx        Using (x[i+1]-x_[i])*(x[i+1]-x_[i])
            Default paramtrization is the x_value.
            Therefor all points must be ordered.
Please send comments and bugs to Jens.Trapp@DLR.De

Jens Trapp
Wed Jun 12 20:34:13 MET DST 1996