gp_Pnt P2 = C1->Value(U); //Compute a point on two thirds of the edge's length
C2 = new Geom_TrimmedCurve(C2, U21, U22);
+ // vsr 04/10/2018: 0023312 - As curve may be periodic, its parameters may be normalized
+ // so, we re-take them from trimmed curve
+ U21 = C2->FirstParameter();
+ U22 = C2->LastParameter();
if(!GeomLib_Tool::Parameter(C2, P1, MAX_TOLERANCE, U) || U < U21 || U > U22)
return false;