How to make a 4D graph

Question

Sarah 2013-6-25

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/80228-how-to-make-a-4d-graph

Hi,

I am extremely new to Matlab (downloaded approximately 10 minutes ago new). I have been looking online for some templates, but nothing seems to be quite what I am looking for. I have four data points: length (x), width (z), height (y), and CO2 concentration (c). I want the fourth data point, the CO2 concentration, however, represented by a color depending on the concentration. Say, a darker color hue for lower concentrations and a lighter color hue for higher concentrations. Is there a way I can do this where I can just insert an excel file? I just have no idea where to start or where to look. Any help is much appreciated!

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Answer 1

Lokesh Ravindranathan 2013-6-25

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https://ww2.mathworks.cn/matlabcentral/answers/80228-how-to-make-a-4d-graph#answer_89932

Technically, you cannot visualize 4d plot in MATLAB. That being said, you can 3d slices in matlab using the slice command http://www.mathworks.com/help/matlab/ref/slice.html. However, you might want to choose a syntax which allows colors in the code.

To load an excel file into MATLAB, use xlsread http://www.mathworks.com/help/matlab/ref/xlsread.html.

You will have to write your code for loading and plotting. Maybe, there are user submitted code http://www.mathworks.com/matlabcentral/fileexchange/ for this routine.