globalmapper教程，讲的很详细，对于工作时学习和参考有很大帮助-Globalmapper tutorial, the very detailed, for the work of learning and reference is very helpful

适合Globalmapper初学者使用的入门教程(Globalmapper beginners for beginners to use tutorial)

提取所需研究范围内的登高线CAD形式文件，精度为10米。(with the software you can extracte the CAD form of the boarding line of the required research scope, with a precision of 10 meters.)