Plot xyz point data to 3D contour
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Amra Rajuli
le 28 Mar 2021
Commenté : Star Strider
le 12 Avr 2021
How to plot the xyz point data (attached) into 3D contour? Thank you
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Star Strider
le 28 Mar 2021
Try this:
D = readmatrix('data.txt');
x = D(~(any(isnan(D),2)),1);
y = D(~(any(isnan(D),2)),2);
z = D(~(any(isnan(D),2)),3);
N = 50;
xv = linspace(min(x), max(x), N);
yv = linspace(min(y), max(y), N);
[X,Y] = ndgrid(xv, yv);
Z = griddata(x, y, z, X, Y);
figure
surf(X, Y, Z)
.
4 commentaires
Star Strider
le 12 Avr 2021
The shaperead function requires the Mapping Toolbox, that I do not have.
I cannot run your code.
However, removing the NaN values from the structure would likely be straightforward:
Dnonan = structfun(@(x)x(~(any(isnan(x),2))),D, 'Unif',0);
x = Dnonan.X;
y = Dnonan.Y;
z = Dnonan.Z;
See if that does what you want. (It worked with a random structure I created to test this, with the fields of ‘D’ being column vectors.)
Make appropriate changes to get thee result you want.
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