API Reference > geometry-core > Curve > LineSegment3d > clonePartialCurve clonePartialCurve Method Return (if possible) a curve primitive which is a portion of this curve. clonePartialCurve(fractionA: number, fractionB: number): CurvePrimitive | undefined Parameter Type Description fractionA number start fraction fractionB number end fraction Returns - CurvePrimitive | undefined Defined in core/geometry/src/curve/LineSegment3d.ts Line 321 Last Updated: 13 June, 2024