scriptlike c++ workflow - software design

I'm currently writing a piece of software which deals with surface reconstruction from point clouds using the CGAL library.

Now, since i gathered all the functionalities i need in minimal-examples, i ask myself whats the best way to build a solid workflow / processing pipeline. I am not that experienced with C++. Until now i only used Matlab / Python really much.

So to clarify my question: The workflow is something scriptlike whereby the same functions get called over and over again. Reading point clouds, writing, different filtering etc. Would it be the best solutions to create a class "Pointcloud" and move all my functions into this class? I have doubts wheter the programm will be even more confusing when i but all functions into one single class. Is this even useful?

I'm not a software engineer and therefore i have little knowledge about common programming paradigms / patterns etc. Maybe someone has a hint for this kind of problem.

Thanks