Fit on Cloud
This command is used to fit a CAD Surface on a point cloud. The surface is moved in order to adjust the face (elementary surface) on the cloud (the cloud is not modified).
Requirements
Select the surface(s) to fit and the cloud and launch the command.
Check Constraint borders if you want to not modify any edges of the input surfaces. Else, you allow modifying all edges.
You can see the deformation of the face inside the 3D scene. You can also see the Maximum distance and Standard deviation between the face and the cloud.
Notes
The surface must be close to the cloud for a better fitting.
The fitting is also dependent of the number of control points: if you have 3 controls points along U and V direction, you cannot correctly fit your surface on a cloud having many different curvature areas.
If possible, choose the Fit on Mesh command because the result will be better and faster as the normal vector of the mesh is used to fit the surface and the mesh is most often less noisy than a cloud.
Restricted or closed surfaces (such as torus, cylinder, sphere) can't be fitted on clouds.
In some cases, the algorithm may fail due to overconstrained fitting. Try to disable Constraint borders.