图形库用C
问题描述：
我在想，如果有，易于使用任何好的免费图形库对C？
它是绘制二维和三维图形，然后保存到一个文件中。这是一个Linux系统上，并有系统上没有gnuplot的现在。
I was wondering if there were any good free graphics libraries for C that are easy to use? It's for plotting 2d and 3d graphs and then saving to a file. It's on a Linux system and there's no gnuplot on the system right now.
或者就只是简单的切换到另一种语言，如果是这样哪一个会容易学吗？
Or would it just be simpler to switch to another language, and if so which one would be easy to learn?