散点图密度分割

根据两幅图像，绘制散点图，散点按照区间内的点密度进行分割赋予颜色。

IDL常用函数列表（英文版）

列举IDL常用函数，方便查阅。 IDL 常用函数列表 3D Visualization..........................................................................................................................2 Animation ...................................................................................................................................6 Array Creation ............................................................................................................................7 Array Manipulation.....................................................................................................................8 Color Table Manipulation ...........................................................................................................9 Date and Time...........................................................................................................................10 Debugging.................................................................................................................................11 Dialog Routines ........................................................................................................................11 Direct Graphics .........................................................................................................................11 Error Handling ..........................................................................................................................15

IDL提高途径（five ways improve）

five ways to improve IDL 很多资源网站、ftp、和一些常用的IDL函数介绍。