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在对小地区(3平方公里以内)大比例尺(1:500～2000)的控制测绘中,平板仪的快速安置是一个难题。传统的方法是固定图纸,分幅测绘,由引点器对中。此法因对中、整平、定向三项工作互相影响,须按定向、整平、对中再由对中、整平、定向两步程序反复调整方可达到正确安置,一般测绘工作者很难掌握。随着我国村镇建设日趋规范化,科学化和法制化,对于几千年沿袭下来的、自发建设的村镇现状的
In the large-scale (1:500-2000) control mapping of small areas (less than 3 square kilometers), the rapid placement of flat-panel instruments is a problem. The traditional method is a fixed drawing, subdivision mapping, centered by the indexer. Due to the mutual influence of the three tasks of centering, leveling, and orientation, this method must be adjusted by two-step process of orientation, leveling, and centering, then centering, leveling, and orientation. The general surveying and mapping workers are very satisfied. Difficult to master. With the increasing standardization, scientificization and legalization of the construction of villages and towns in our country, the status quo of villages and towns that have been inherited and self-built for thousands of years