how to plot a 3-dimensional matrix
102 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Let say i have a 3-d matrix rand(3,3,3);
I want to see this 27 values in a box (a plot where we define all the three z-axis) from x=1:3; y=1:3, z=1:3;
can anybody help?
0 Kommentare
Antworten (3)
Adam Cutbill
am 16 Sep. 2014
Bearbeitet: Adam Cutbill
am 16 Sep. 2014
X=rand(3,9,3); %(3 coords, 9 points, 3 groups)=27 points.
X=reshape(X,[],3);
plot3(X(:,1),X(:,2),X(:,3),'.');
In general, I'd avoid a 3D matrix. What you're really doing with a 2D matrix is accessing the point and the coordinate (2 indices, i=point,j=coordinate). You can have as many dimensions in the coordinates as you want. If you want to go 3D, then you're accessing the group, the point and the coordinate (i,j,k). Make sure this is what you want if you're using 3D matrices.
Not sure what you mean about a box but I don't think rand(3,3,3) is what you are after.
1 Kommentar
Huy Kien Bui
am 1 Apr. 2019
Thank you so much, Adam Cutbill.
It's work in my case.
A little bit change in code:
%% B: 3D matrix 1x258x8
X=reshape(B,[],8); %% X: 2D matrix 258x8
[xx yy] = meshgrid(1:8,1:258);
plot3(xx,yy,X,'*');
![Capture.JPG](https://www.mathworks.com/matlabcentral/answers/uploaded_files/211368/Capture.jpeg)
Siehe auch
Kategorien
Mehr zu Visual Exploration finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!