就單三角鎖而論,由於方位多边形,基綫多边形在某些方面相当於独立中心網的水平多边形及極多边形,因之基本上可以同法处理。但方位多边形、基綫多边形与水平多边形及極多边形在本質上是不同的,在某些关节上有所差異,所以这里仅介紹本圖形依多边形平差法的一些特殊問题。共同的地方可参閱上例。 As far as the single triangle lock is concerned, due to the azimuth polygon, the baseline polygons are equivalent to the horizontal polygons and the polygons of the independent center network in some respects, and therefore can basically be dealt with in the same way. However, the azimuth polygons, the baseline polygons and the horizontal polygons and the polygons are different in nature and differ in some joints. Therefore, only some special problems of this graph according to the polygon adjustment method are introduced here. Common place can refer to the above example.