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This article probes into quantification graphs combination forms under oblique and circuit angle coordinate system in theory,and expounds te composition method of these two coordinate systems in detail,thereby provides theoretical basis for practically using these combination graphs.

从理论上探讨了斜角坐标系与周角坐标系量化图形的组合形式 ,并详细阐述了两种坐标系的构图方法 ,从而为此类组合图形的实际应用提供了理论依

According to the second method,we can judge that if error of closure of horizon in many detail unclosed traverse exceed 40 second,if error of closure of angles exceed 40n1 second.

按照方法二可计算出各条图根支导线的测站点圆周角闭合差是否超过±40″,各条支导线的角度闭合差fβj是否超过40 n1″,测角中误差m角平是否超过21。