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Thank you, with better search in English I could have found the answer to my question. The inheritance implies so a derivative work. Anyway in my case, if I don't distribute the software, it falls outside the scope of the license. Thank you Daniel for all your answers, always so quick, accurate and ...

Thank you, these concepts seem clearer.
But what about the inheritance of classes? For example from the QWidget in Qt, is it so a derivative work of the Library? Or just a use?

Hi, I'm not very at ease in English and even less in legal English. This is why I'm asking you some precisions about CCLib LGPL License . What are the differences (see Sections 5 and 6) between: - a "work that uses the Library" ; - a "derivative work of the Library" ; - and a &qu...

Thank you for your responses ;)

Indeed, I have not enough explained this problem : I want to compare one point cloud (the reference) to another which is acquired later. These two point clouds characterize therefore approximately the same surface that is theoretically planar (not necessarily horizontal). I want to determine the glo...

Thank you for all these informations, the different problems are now clearer for me. To confirm my comprehension and to summarize the solution for my example: To compare two point clouds of the same planar surface, the best method is to compute cloud-to-mesh distances between: - the compared point c...

Daniel, thanks for this response. The second method seems indeed to be the best for me. However, it seems that when a part of the compared point cloud is out of the horizontal area of the reference plane, it leads to hight distances, which must be wrong due to the similarity of the surface described...

Hello all, I have to compare several point clouds that represent approximately the same planar surface. I have tested 2 functions in order to decide which method is the best for me: - Compute cloud/cloud distance, between compared point cloud A and reference point cloud B, with a Least Square Plane ...