API Reference > geometry-core > Solid > Sphere > strokeConstantVSection strokeConstantVSection Method return strokes for a cross-section (elliptic arc) at specified fraction v along the axis. if strokeOptions is supplied, it is applied to the equator radii. strokeConstantVSection(v: number, fixedStrokeCount: undefined | number, options?: StrokeOptions): LineString3d Parameter Type Description v number fractional position along the cone axis fixedStrokeCount undefined | number options StrokeOptions Returns - LineString3d Defined in solid/Sphere.ts Line 169 Last Updated: 12 June, 2024