Method getScale

packages/engine/Source/Core/Matrix3.js:944–960

* Extracts the non-uniform scale assuming the matrix is an affine transformation. * * @param {Matrix3} matrix The matrix. * @param {Cartesian3} result The object onto which to store the result. * @returns {Cartesian3} The modified result parameter. * * @see Matrix3.multiplyByScale

(matrix, result)

   * @see Matrix3.setUniformScale
   */
  static getScale(matrix, result) {
    //>>includeStart('debug', pragmas.debug);
    Check.typeOf.object("matrix", matrix);
    Check.typeOf.object("result", result);
    //>>includeEnd('debug');

    result.x = Cartesian3.magnitude(
      Cartesian3.fromElements(matrix[0], matrix[1], matrix[2], scratchColumn),
    );
    result.y = Cartesian3.magnitude(
      Cartesian3.fromElements(matrix[3], matrix[4], matrix[5], scratchColumn),
    );
    result.z = Cartesian3.magnitude(
      Cartesian3.fromElements(matrix[6], matrix[7], matrix[8], scratchColumn),
    );
    return result;
  }

  /**
   * Computes the maximum scale assuming the matrix is an affine transformation.