Contourf and Surf with repeated values
4 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Lorenzo Pasinato
le 16 Déc 2022
Réponse apportée : Fabio Freschi
le 16 Déc 2022
If I have a matrix (or a .mat file) like in screenshot, so with same ordered values, how can I do plot the third column as Z? The problem is that i can't give the first column as X and the second as Y.
Thank you!
0 commentaires
Réponse acceptée
Fabio Freschi
le 16 Déc 2022
Suppose you have Nx divisions along the variable of the first column and Ny divisions along the variable of the second column. You must reshape the columns of your matrix according to Nx and Ny
clear variables, close all
Nx = 5;
Ny = 6;
% create your matrix with random inputs
x = linspace(0,1,Nx);
y = linspace(1,2,Ny);
[X0,Y0] = meshgrid(x,y);
Z0 = X0.^2-3*X0.*Y0;
M = [X0(:) Y0(:) Z0(:)];
% The engine you want starts here -----
% reshape the columns of the matrix
X = reshape(M(:,1),Ny,Nx);
Y = reshape(M(:,2),Ny,Nx);
Z = reshape(M(:,3),Ny,Nx);
% plot
figure
surf(X,Y,Z);
view([1 1 1])
Hope it helps!
0 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Contour Plots dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!