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Topic: curve interpolation by parabolic blending
Replies: 2   Last Post: Jun 23, 2013 3:38 AM

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enprush@gmail.com

Posts: 5
Registered: 6/12/13
curve interpolation by parabolic blending
Posted: Jun 22, 2013 8:06 AM
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I'm given a set of 25 points(x,y values). I need to curve fit these points using a parabolic blending. I'm not sure how to go about it. I read that we need to take 3 points at a time to ensure a unique parabola is obtained.
I need to:
take first 3 points(1,2,3) and fit a parabola to it.
take the next 3 points (2,3,4) and do the same.
This goes on till i reach my final point. The overlapping portions of any two parabolas is linearly blend using a cubic curve.

So, this looks more like a polyfit of third order except between point 1 and 2. Am i right in continuing on with a ployfit of order 3?

Thanks



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