Excel's chart smoother appears to use Bezier curves. Brian Murphy has
posted code for Bezier curves, but the link he gave http://www.xlrotor.com/excel_stuff.htm
appears to be obsolete. I
In most cases, the difference between Bezier curves and cubic splines is
minimal. An example where the difference is noticeable is http://www.google.com/groups?threadm=3E7291CA.7020907@no_e-mail.com
David Braden has posted code for cubic splines, but Google changed their
addressing and my saved link is now broken. You might find it by searching.
I could e-mail you a .zip file of Brian Murphy's workbook and David
Braden's VBA code if you like.
Jerry, that would be great if you could email those. my address is wysz
(at) hotm ail (dot) com
I saw refference to a program (Excel utility) in my searching called
Chartool that is apparently based on Bezier curves , but only broken links
were attached to refferring links.
Jerry, that would be great if you could email those. my address is wysz
(at) hotm ail (dot) com
I saw refference to a program (Excel utility) in my searching called
Chartool that is apparently based on Bezier curves , but only broken links
were attached to refferring links.
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