What is the difference between delaunay.m and TriScatteredInterp.m

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Matlab2010
Matlab2010 2013-1-28
I have scattered data in 2D/3D. I wish to transform it onto a regular grid.
What is the difference between delaunay.m and TriScatteredInterp.m
Does TriScatteredInterp use delaunay triangulation? or some other method of triangulation (eg http://en.wikipedia.org/wiki/Minimum-weight_triangulation)?
thank you
http://www.mathworks.co.uk/help/matlab/ref/delaunay.html
http://www.mathworks.co.uk/help/matlab/ref/triscatteredinterp.html

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回答（1 个）

Shashank Prasanna
Shashank Prasanna 2013-1-28
TriScatteredInterp indeed uses Delaunay triangulation. The reason they are different in MATLAB is because TriScatteredInterp provides a framework to use the triangulation to perform interpolation. Delaunay on the other hand just provides the triangulation.
You can see under the "definition" section of TriScatteredInterp :
http://www.mathworks.com/help/matlab/ref/triscatteredinterp.html

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