The paper introduces the principle and software functions of CGIS and gives an analysis on the current application in coal mine, in the same time brings forward measures of digitizing drawing.
介绍了矿井地测信息系统（CG IS）的绘图原理和软件功能，对煤矿应用CGIS的现状进行了分析，提出了数字化制图的实施办法。
Thus a high-efficiency, high-quality method for digitizing the measured object is the object which is being pursued all the time.
因此，寻求一种高效率，高质量的数字化方法，对被测物体进行数字化，是人们一直追求的目标。
Thus a high-efficiency, high-quality method for digitizing the measured object is the object which is being pursued all the time.
因此，寻求一种高效率，高质量的数字化方法，对被测物体进行数字化，是人们一直追求的目标。
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