I use image() a lot for quickly getting an overview of what a 2-d array contains. I have searched through the Volume visualization guides without finding anything similar for 3-d arrays, so I have made one myself.
The approach is very simple: make a "box" out of 6 patches centered at each datapoint, and multiply each walls opacity by the corresponding array elements numeric value.
1. As the number of elements grows, the memory usage and plotting system cpu usage quickly gets too large
2. This is a crude approximation of "voxels", but the amount of blocked light is proportional to the number of wall transitions, not the real distance.
Knut (2021). Image3 (https://www.mathworks.com/matlabcentral/fileexchange/30721-image3), MATLAB Central File Exchange. Retrieved .
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