> Try making this smoothing function (which starts at zero with a slope of
> zero, then slopes up, and ends at one with a slope of zero):
>
> #local smoothfunc = function(x) {x*x*(3-2*x)}
>
> And then replace the x in your sin/cos functions with smoothfunc(x).
>
>  - Slime
>  [ http://www.slimeland.com/ ]
This worked nicely, thank you. A small tweak in the accuracy and
max_gradient and I have this.

Stephen

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