Function isIdentityEuler

src/utils/sim3dTransforms.ts:304–315

(euler: Sim3dEuler)

 * Check if a Sim3dEuler represents an identity transform.
 */
export function isIdentityEuler(euler: Sim3dEuler): boolean {
  const epsilon = 1e-9;
  return (
    Math.abs(euler.scale - 1) < epsilon &&
    Math.abs(euler.rotationX) < epsilon &&
    Math.abs(euler.rotationY) < epsilon &&
    Math.abs(euler.rotationZ) < epsilon &&
    Math.abs(euler.translationX) < epsilon &&
    Math.abs(euler.translationY) < epsilon &&
    Math.abs(euler.translationZ) < epsilon
  );
}