API Reference > geometry-core > Solid > TorusPipe > constantVSection constantVSection Method Return the Arc3d section at vFraction. For the TorusPipe, this is a minor circle. constantVSection(v: number): undefined | CurveCollection Parameter Type Description v number Returns - undefined | CurveCollection Defined in solid/TorusPipe.ts Line 185 Last Updated: 11 June, 2024