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## Module gr_smooth

```NAME
gr_smooth - a GRToolbox module
DESCRIPTION
Smoothing and interpolation with any difference equation.
The smoothneth can be controled by the coeffecient lambda and
by the order of differences taken.
Data can only be smoothed in one direction.
Different weights can be used.
SYNOPSIS:
-[ diff lambda coord x y z 0 1 2 3 4 5 ... weight dweight equi square euclidianh o v noc nof now skip f m c e i s l]
-help    For help on all options.
Special Options:
-lambda double    Smoothing factor. (Default: 2)
(Higher value is smoother)
-diff int    Order of difference equation. (Default: 2)
(Higher value is smoother. Value Range:1-5)
-coord int    Coordinate Number to be smoothed. (Default: 1)
-x        Smooth x-coordinate (Same as -coord 0)
-y        Smooth y-coordinate (Same as -coord 1)
-z        Smooth z-coordinate (Same as -coord 2)
-1        Smooth x-coordinate (Same as -coord 0)
-2        Smooth y-coordinate (Same as -coord 1)
-3        Smooth z-coordinate (Same as -coord 2)
-4        Smooth 4th-coordinate (Same as -coord 4)
-N        Smooth Nth-coordinate (Same as -coord nN
-weight int    Weight coordinate number.
-dweight int    Difference of coordinate pt[i+1]-pt[i-1].
-equi    Equidistant weights.
-euclidian    Take the euclidian length of polygon
pt[i+1], pt[i], pt[i-1] as weights (DEFAULT).
-square    Take the square length of polygon
pt[i+1], pt[i], pt[i-1] as weights.
(Strong weights=>Curves not that smooth)```

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