====== Point Cloud ======

GroIMP support two ways of defining a point cloud object: 
  - As an array: the points coordinates are stored in the array, and the object is considered as one node in the project graph.
  - As a graph: each point is built in a node of the project graph. This representation enables links between nodes and possible meshes imported (e.g. ply files can support point, line and faces).

==== As array ====



==== As Graph ====