Thanks. For curvature graph I use Rhino. I`m looking for fast way to check continuity between surfaces. What is not possible at Rhino 6. In Rhino 7 its possible only one pair at time. Old Autodesk VSR plugin allowed to check multiple edges between surfaces at one time but it works only with Rhino 5. VSR plugins was killed before v6. For now if I will update from Rhino 6 to Rhino 7 it will be mainly for this command: EdgeContinuity https://docs.mcneel.com/rhino/7/help/en-us/commands/edgecontinuity.htm . I hoped that I will find solution like that in MoI or as external paid script or so. This EdgeContinuity command is also very limited because of checking only one pair at time. It would be nice what continuity type is present on each edge of a whole object.