API Reference > geometry-core > Curve > Arc3d > cloneInRotatedBasis cloneInRotatedBasis Method Return an arc whose basis vectors are rotated by given angle within the current basis space. the result arc will have its zero-degree point (new vector0) at the current vector0 * cos(theta) + vector90 * sin(theta) the result sweep is adjusted so all fractional coordinates (e.g. start and end) evaluate to the same xyz. Specifically, theta is subtracted from the original start and end angles. cloneInRotatedBasis(theta: Angle): Arc3d Parameter Type Description theta Angle the angle (in the input arc space) which is to become the 0-degree point in the new arc. Returns - Arc3d Defined in core/geometry/src/curve/Arc3d.ts Line 861 Last Updated: 13 June, 2024