According to the development of electronics technology and the application of electron range measurement instrument,especially with the promotion of full station instruments,the application of edge measurement converging method in monitoring the deformation being under construction has the trend of extensiv.

Application of side-measured forward intersection method to the upper reservoir dam of Guangzhou Pumped Storage Plant;

On linear-angular intersection and its application in topographic survey;

Application of free stationing layout method by using the linear-resection

Furthermore,the coordinates and positional accuracy of three-or more-point linear-resection were calculated by a rigorous adjustment program.

This paper discusses and analyzes the accuracy problem of linear-resection points.