Drexel dragonThe Math ForumDonate to the Math Forum

Ask Dr. Math - Questions and Answers from our Archives
Associated Topics || Dr. Math Home || Search Dr. Math

Finding an Ellipse in 3-D Space

Date: 06/14/2005 at 09:48:21
From: Farhat
Subject: three dimensional curve approximation

I want to fit an ellipse to a set of 3D data points.  Can you help?

Date: 06/14/2005 at 12:16:01
From: Doctor George
Subject: Re: three dimensional curve approximation

Hi Farhat,

Thanks for writing to Doctor Math.

This is not a simple problem, and it goes beyond most of what we do
here at Dr. Math.  Here are links to a couple papers that will point
you in the right direction.

This paper covers circle and ellipse fitting in a plane:


This paper covers circle fitting in space.  You can modify the ideas
here for ellipse fitting in space:


Write again if you need more help.

- Doctor George, The Math Forum
Associated Topics:
College Higher-Dimensional Geometry

Search the Dr. Math Library:

Find items containing (put spaces between keywords):
Click only once for faster results:

[ Choose "whole words" when searching for a word like age.]

all keywords, in any order at least one, that exact phrase
parts of words whole words

Submit your own question to Dr. Math

[Privacy Policy] [Terms of Use]

Math Forum Home || Math Library || Quick Reference || Math Forum Search

Ask Dr. MathTM
© 1994-2015 The Math Forum