裁剪shape文件，使用idl编程实现，就是一个功能，编译以后可以直接调用这个函数
Clipping shape file, using idl programming, is a function, after compiling can directly call this function (2019-04-16, IDL, 2KB, 下载1次)
Esri于2016年IDL培训教材，通过通读与实践，可了解IDL编程基础
Esri training materials for IDL in 2016 (2018-05-02, IDL, 26232KB, 下载10次)
IDL编程技术，内容详细，对于初学者很实用
IDL programming technology, detailed content, very practical for beginners (2018-03-07, IDL, 2794KB, 下载4次)
IDl编程中的数组操作,是IDL图像处理的难点所在
IDl array programming operation，is where the difficulties IDL image processing (2010-09-17, IDL, 186KB, 下载9次)
用IDL编程：分形图像的形成：分形的树叶的形成，
Programming with IDL: the formation of fractal images: fractal formation of leaves, (2009-08-04, IDL, 1KB, 下载2次)