STL to solid 3d matrix

Is there a way to import STL and save it as 3D matrix and stlil maintain its size? Patch is a good function to import stl, I need voxelisation of the mesh so I can slice the 2D data out of it.

This is a good work by Adam , but it does not maintain the size and ratio:

https://uk.mathworks.com/matlabcentral/fileexchange/27390-mesh-voxelisation

Regards