PyX 是 Pytthon 的一个矢量图形创建库，我写的很多小软件都是用这个开发的。
PyX — Python graphics package
PyX is a Python package for the creation of PostScript, PDF, and SVG files. It combines an abstraction of the PostScript drawing model with a TeX/LaTeX interface. Complex tasks like 2d and 3d plots in publication-ready quality are built out of these primitives.
Features PostScript, PDF, and SVG output for device independent, freely scalable figures seamless TeX/LaTeX integration full access to PostScript features like paths, linestyles, fill patterns, transformations, clipping, bitmap inclusion, etc. advanced geometric operations on paths like intersections, transformations, splitting, smoothing, etc. sophisticated graph generation: modular design, pluggable axes, axes partitioning based on rational number arithmetics, flexible graph styles, etc.