matplotlib 可视化 —— 绘制常见图形

0. 饼状图

• plt.pie()：Python数据可视化：饼状图

1. 三角形

• 描点连线，起点和终点相同

triangle1 = ((0, sqrt(3)/2), (1, 3*sqrt(3)/2), (2, sqrt(3)/2), (0, sqrt(3)/2))
triangle2 = ((0, sqrt(3)), (1, 0), (2, sqrt(3)), (0, sqrt(3)))
plt.plot([e[0] for e in triangle1], [e[1] for e in triangle1],
         [e[0]for e in triangle2], [e[1] for e in triangle2], 'b', lw=3)