Class structure

[pfmephisto]

I was thinking of structuring the PointCloud and new PointClouds classes as follows, where PointClouds is just a wrapper around a vector of PointCloud

My current challenge is just figuring out how I avoid reimplementing all methods or understanding what I need to inherit for the wrapper to work correctly.

PointCloud is currently just a using PointCloud = pcl::PointCloud<PointT>, but I can not add any extension methods to that class.
On the other hand, this can also just be a functionality that is exposed in the Python module and in C++ it's a free function as it is right now.

classDiagram

PointCloud
PointCloud: load(string file)
PointCloud: save(string file)

PointClouds
PointClouds: load(string dir)
PointClouds: save(string dir)
PointClouds: register (params) 
PointClouds: merge()  PointCloud

Loading

[pfmephisto]

Maybe PointClouds can also be smart in what it is loading into memory and cache point clouds to disk if memory is not sufficient.