fieryspoon Posted April 13, 2014 Share Posted April 13, 2014 (edited) Sorry if this has come up before. I searched, but did find a previous thread on the topic. I'm looking for a VOP (or something) to provide the unit vector/slope of a best fit line for a local point cloud. Basically, a linear regression for a set of local points, on a per point basis. Is there something like this already? If not, could someone help me build it? My math isn't strong enough to build it myself. I found this: http://en.m.wikipedia.org/wiki/User:Vossman/3D_Line_Regression Thanks! Edited April 13, 2014 by fieryspoon 1 Quote Link to comment Share on other sites More sharing options...
petz Posted April 13, 2014 Share Posted April 13, 2014 i´m not entirely sure if i get what you are trying to do but maybe the attached file can help. petz pca.hip 3 Quote Link to comment Share on other sites More sharing options...
magneto Posted April 14, 2014 Share Posted April 14, 2014 Great tricks petz Are they all doing the same operation in different ways? One using eigen vectors, the other using PCA? Which one is more optimal or is it a matter of preference? I just don't know what their differences are in solving these sort of problems. Quote Link to comment Share on other sites More sharing options...
fieryspoon Posted April 14, 2014 Author Share Posted April 14, 2014 Hey thanks! I'll check it out when I get home! Quote Link to comment Share on other sites More sharing options...
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