This paper takes the Topcon ES-600G series Total Station as an example, introduces the SDR33 data record format of the Total Station, discusses in detail the implementation of SDR33 data format conversion method and software of CASS data format needed for the development process by using Visual C# programming.%本文以拓普康ES-600G系列全站仪为例,介绍了全站仪的SDR33数据记录格式,详细论述了利用Visual C#编程实现SDR33数据格式转换为南方CASS数字化成图软件所需数据格式的方法和软件研制过程。
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