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Image3

version 1.0.0.0 (1.41 KB) by Knut
A simple function for displaying 3-d arrays similar to how image() can be used for 2-d arrays.

1.1K Downloads

Updated 11 Mar 2011

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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.

Caveats:
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.

Cite As

Knut (2021). Image3 (https://www.mathworks.com/matlabcentral/fileexchange/30721-image3), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2010b
Compatible with any release
Platform Compatibility
Windows macOS Linux
Categories
Acknowledgements

Inspired: pcolor3

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