API Reference > geometry-core > Curve > TransitionSpiral3d > applyRigidPartOfTransform applyRigidPartOfTransform MethodProtected If transformA is rigid with uniform scale, apply the rigid part of transformA to the localToWorld transform and return the scale and rigid separation. If not rigid, do nothing and return undefined. Also apply the scale factor to the designProperties. applyRigidPartOfTransform(transformA: Transform): undefined | { rigidAxes: Matrix3d, scale: number } Parameter Type Description transformA Transform Returns - undefined | { rigidAxes: Matrix3d, scale: number } Defined in curve/spiral/TransitionSpiral3d.ts Line 148 Last Updated: 11 June, 2024