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Quasi-freehand curve fitting... [message #11203] Mon, 09 March 1998 00:00
rmb is currently offline  rmb
Messages: 5
Registered: October 1994
Junior Member
Hello folks,

This is something which has been exercising my mind for a little while
now. My problem is the following:

I have pairs of numbers (x,y) which rescribe the performance of a
system, usually with a fairly abrupt change of gradient. eg:

| x x x
| x
y| x
| x
| x x x x
---------------------
x

Now, this preformance does not have any particular functional form,
but I would like to draw a curve through the points to draw the
eye. The closest I have got to what I wish is to use INTERPOL to
linearly interpolate between the points and then SMOOTH to round the
corners. However, getting a nice amount of smoothing drags the curve
away from the points. I would like a nice smooth curve which does go
through all the points, like one would draw freehand.


--
R.

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= -=-=-=-=-=-=-
Richard Brockie B.Sc.(Hons), The tall blond one.
Adaptive Optics Chap. Email: R.Brockie@roe.ac.uk
-=-=-=-=-=-=-=-=-=-=-= http://www.roe.ac.uk/rmbwww =-=-=-=-=-=-=-=-=-=-=-
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