How could plot 3D surface for 4 variable ?

Hello everyone,

i have 4 variables, 3 are coordinates and i make these 3D array by [X,Y,Z] = meshgrid(x,y,z); and another is my fourth variable of similar size. I need to plot 4 of them together where 4th one is data variable. I used scatter3( X(:), Y(:), Z(:),[], w2(:) ) ; but this does not my desired result.

please help me.

[Walter Roberson]

You will need to post an example of what your desired result would look like.

[Alaa Hameed]

hello, I have a similar question. I have three variables (x, y, z) which generated from three nested loops. the output of these three loops a fourth variable come out as a results of a mathematical process. How to represent them in a drawing? Thanks,

[Walter Roberson]

Alaa Hameed, please post a link to an example of what you would like the graph to look like.

[Alaa Hameed]

Thanks for your interests. Attached a sample of my data, where: X range= 2200:50:3800 Y range= 0:.005:0.2 Z range= 0:10:500 During each loop I extract my objective function f which I want to minimize. My aim is to inspect if there is more than one minima in f values! Thanks again,

[Walter Roberson]

In order to tell you how to plot the data, we need you to post an image or a link to an image of what style of plot you were hoping to output. Plotting with three input dimensions and one resulting dimension is not easy to do well.

Answer 1

[KSSV]

YOu can plot the stuff, you want....have a look on surf if your data is structured. If your data is not structured, it should be unstructured, then have a look on delaunaytriangulation. For direct help, attach your data.

[Walter Roberson]

surf does not work for volume visualization.

Answer 2

[Walter Roberson]

You can use slice() and you can use isosurface(). For R2017a or later you can potentially use volumeViewer()