3D plot of 3 vectors

140 visualizzazioni (ultimi 30 giorni)
Francesco Porretta
Francesco Porretta il 28 Nov 2020
Commentato: Ameer Hamza il 28 Nov 2020
- error -
  1 Commento
Ameer Hamza
Ameer Hamza il 28 Nov 2020
Dear all, I have the three vectors reported in the file "data.mat" (x,y,z respectively).
I need to 3D plot them. However, something strange happen, since the z vector is 0 all around the borders, but plotting it I obtained that z is 0 only in 4 points (along y=0 axis), as shown in the figure below:
I wrote this code, to do the plot above:
x = data(:,1);
y = data(:,2);
[X,Y] = meshgrid(x,y);
z = data(:,3)
Z = meshgrid(z);
sup = surf(X,Y,Z)
thanks in andvance for your help

Accedi per commentare.

Risposta accettata

Ameer Hamza
Ameer Hamza il 28 Nov 2020
You first need to convert your data into a grid format using scattered interpolation
x = data(:,1);
y = data(:,2);
z = data(:,3);
mdl = scatteredInterpolant(x, y, z);
[xg, yg] = meshgrid(unique(x), unique(y));
zg = mdl(xg, yg);
sup = surf(xg,yg,zg)
  2 Commenti
Francesco Porretta
Francesco Porretta il 28 Nov 2020
It works! thank you so much!
Ameer Hamza
Ameer Hamza il 28 Nov 2020
I am glad to be of help!

Accedi per commentare.

Più risposte (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by