Touch screens

After trying many different routes to get a 3M Microtouch USB touchscreen calibrated I found this utility:

github.com/reinderien/xcalibrate

I had to install Tkinter & Numpy for python3 on Mint 19.3.

This utility is excellent, it fixed the issue I had with X & Y needing swapping & rotating the screen. So just putting it out there if there is anyone else pulling there hair out trying to get a touchscreen going.
The only thing it doesn't do is actually write the output file for you, that's up to the user to do with root privileges with the info given at the end of the script.