这次进行了改进，更为简单实用，自动化程度很高，原数据文件有实例，直接输出平差结果文件，内容包括平差后的坐标，点位精度，误差椭圆三要素（极大值方向）,The improved, more simple, practical, high degree of automation, the original data files are examples of the results of the direct output adjustment documents, including after adjustment coordinates, point precision, the three elements of error ellipse (direction of maximum )