Function computeOriginTranslation

src/utils/sim3dAlignment.ts:43–49

(point: THREE.Vector3)

 * Compute translation transform to move a point to the world origin.
 */
export function computeOriginTranslation(point: THREE.Vector3): Sim3d {
  return {
    scale: 1,
    rotation: new THREE.Quaternion(),
    translation: new THREE.Vector3(-point.x, -point.y, -point.z),
  };
}

/**
 * Compute rotation transform to align a plane's normal with the target up axis.