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# 3d surface plot by having 3 uncorrelated vectors

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Gianmarco Azzolin on 29 Jan 2021
Answered: KSSV on 29 Jan 2021
Hi everyone,
I'm trying to plot a 3D surface in Matlab, having three different vectors x,y,z. All the three have dimension 1601x1 and they are not correlated by any mathematical formula, they are only coordinates of some points that have to be plotted. I would like to plot a 3d homogeneous surface (not point by point) with different colours indicating the different heights (maybe yellow where z is higher and blue where z is lower). I don't want a discrete surface (actually I've already tried to use plot3 but it seems to be a point surface or a line one, I want an homogenous thing).
Could you help me please?
Thank you in advance,
Gianmarco
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KSSV on 29 Jan 2021
Attach your data.

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### Answers (1)

KSSV on 29 Jan 2021
Let (x,y,z) be your three column arrays.
dt = delaunayTriangulation(x,y) ;
tri = dt.ConnectivityList ;
figure
trisurf(tri,x,y,z)
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