gnuplot 的安装

一款好用的linux画图软件。不走弯路，一遍安装成功！

• prepare environment
  yum install zlib-devel libpng-devel libjpeg-devel libwebp-devel libtiff-devel freetype-devel fontconfig-devel libXpm-devel

• liq library：下载liq库，解压进入该目录

https://pngquant.org/lib/
https://github.com/ImageOptim/libimagequant
./configure && make && make install

• libcerf: 下载libcerf库，解压进入该目录

https://sourceforge.net/projects/libcerf/
./configure && make && make install

• libgd：下载libgd库，解压进入该目录

http://libgd.github.io/pages/downloads.html
./configure && make && make install

• gnuplot：下载gnuplot，解压进入该目录

http://gnuplot.sourceforge.net/
./configure && make && make install

• 运行
  gnuplot
> set terminal png
> set output "1.png"
> plot sin(x)

后续会记录一些使用的样例。如有其它疑问请联系博主一起讨论学习。