The exact results of the diffractive angle and coordinate value for imaging point can be obtained if corrected coefficient is used in these formulas to correct.
由校正后的公式计算的成象点，其衍射角及坐标值可获得精确的结果。
So we could pick any point on the structure including an Angle relative to the global coordinate system.
所以我们可以在结构上选取任何一个点，相对于全局坐标系存在角度。
Through polar coordinate method error calculus demonstrated that the setting-out point error is mainly caused by Angle measurement error.
通过对极坐标法误差的计算论证了放样点误差主要是由测角误差引起。
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