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Quiver plot for scattered data

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3.5 | 2 ratings Rate this file 5 Downloads (last 30 days) File Size: 2.5 KB File ID: #38856 Version: 1.0
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Quiver plot for scattered data

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Quiver plots directly from scattered data

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Description

TRIQUIVER(TRI,X,Y,U,V) plots velocity vectors as arrows with components in U and V at the triangle vertices identified by the triangulated data given by TRI, X, and Y. U and V must have as many elements as X and Y.

Required Products MATLAB
MATLAB release MATLAB 7 (R14)
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Comments and Ratings (4)
11 Oct 2016 SL

SL (view profile)

The basic example does not work in Matlab 2016a. You need the package apparently Mick's trigradient function as a dependency. I get the error `Error using horzcat Dimensions of matrices being concatenated are not consistent.` Mick's trigradient: https://se.mathworks.com/matlabcentral/fileexchange/36837-trigradient-m Otherwise, it seems to be a well written code.

23 Mar 2014 Guha Prasaanth

Can this code be used to reconstruct the orientation field of the ridges in a fingerprint???............

07 Nov 2012 Duane Hanselman

Sorry R, but I do not respond to anonymous comments.

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31 Oct 2012 R

R (view profile)

Thank you very much for your submission. In your example the magnitude of the gradient and trigradient seem to differ. Presumably, it is due to vector scaling. Could you elaborate on this? Accurate scaling is essential of course.

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