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Simple Cubic Spline Curve Plot

Submitted on: 9/15/2000 8:49:28 AM
By: Jason Bullen 
Level: Beginner
User Rating: By 9 Users
Compatibility: VB 3.0, VB 4.0 (16-bit), VB 4.0 (32-bit), VB 5.0, VB 6.0
Views: 14246
     This is an App to show how to create a Cubic Spline curve to match control points. I wanted to keep it mega simple and to the point, so the control points are hard coded.

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Other User Comments

9/17/2000 10:39:26 PMNathan Chere

I wish I saw a point to this.
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12/25/2000 7:52:12 AMAlmar Joling

Thank you! I've been searching for code like this for a *long* time, but ended up @ commercial products.

Thanks again! you get a 'excellent'

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2/8/2001 7:02:57 AMKyle Shaw

This is a fantastic example of a spline. Thank you very much for this post.
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12/20/2001 6:00:43 PMMark Hunter

This saved the day for me! I really wanted a way to do a spline without going to a commercial product, and this was *exactly* the ticket!

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1/17/2004 6:18:16 PMRobert Redwood

I don't often leave feedback, but you deserve it for this. I looked so long for this code, and all I could find was hundreds and HUNDREDS of bezier programs. I am coding a menu that uses cubic interpolation, and I needed a source to verify a couple of parameters, and this is just the ticket. Small, simple, easy to understand, and best of all, WHAT I'M ACTUALLY LOOKING FOR!!! Thanks a lot, keep at it...
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5/12/2007 12:17:01 PMTanner H

Fricking excellent. I needed this for designing a "Curves" dialog like Photoshop's, and I didn't want anything but raw cubic spline code. THIS WAS PERFECT! Thanks a million, dude.
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6/14/2010 1:22:25 PMjeff

i ported this to javascript and found one small problem: the line where you set
p(nPoints) = 0#
should be above the for loop: "For i = nPoints - 1 To 2 Step -1"

it works in VB cuz by default array values are zero.
but, with that one small change, presto, works in javascript too. cool!
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4/3/2013 1:01:32 PMsalama

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