How to export patch object to .ply or STL file?

Hello, I have a patch object that resulted from the isosurface/isocaps functions,exactly like this tutorial: https://www.mathworks.com/help/matlab/visualize/techniques-for-visualizing-scalar-volume-data.html and I need to export the patch polygon into a .ply or .STL file? how I can do this? do I have to convert the patch polygon into points of cloud set? and how I could do so?

Answer 1

[KSSV]

Check fileexchange there are function to write .stl files.

https://in.mathworks.com/matlabcentral/fileexchange/20922-stlwrite-write-ascii-or-binary-stl-files

[sana3 sal]

Could you please advice me with more details?

[KSSV]

Go to the link download the function.....read the help part of the file. It is a straight forward job. The function demands some inputs, you run the function with required inputs and you will get your .stl file.

[Akshay Kumar Pakala]

May i know how to make the stlwrite function work if my traingulated patch is a cell of n rows and 2 colums. Basically I have n polygons inside the triangulated patch and would like to convert al of them to stl in one file.