US Patent 10269150 Curve editing based on inferred control points

A method to generate a curved connector includes receiving input effective to designate multiple designated points of the curved connector. The designated points include initial and final endpoints and one or more intermediate points between the initial and final endpoints. The method may also include inferring, for each intermediate point, first and second control points without receiving input effective to directly specify the first control point or the second control point. The method may also include calculating: a first curve to include in the curved connector between a corresponding one of the one or more intermediate points and a preceding one of the designated points based at least on the first control point; and a second curve to include in the curved connector between the corresponding one of the one or more intermediate points and a subsequent one of the designated points based at least on the second control point.