显示键盘按键
%exec_python -m scpy2.matplotlib.key_event_show_key
键盘修改曲线颜色，输入rgbcmyk改变颜色
%exec_python -m scpy2.matplotlib.key_event_change_color
显示鼠标事件
%exec_python -m scpy2.matplotlib.mouse_event_show_info
鼠标移动多边形
%exec_python -m scpy2.matplotlib.mouse_event_move_polygon
鼠标移动高亮显示曲线
%exec_python -m scpy2.matplotlib.mouse_event_highlight_curve
选取事件
%exec_python -m scpy2.matplotlib.pick_event_demo
本书提供的scpy2.matplotlib.ImageDrawer可以使用matplotlib的绘图函数直接在图像上绘图，对图像进行标注：
from scpy2.matplotlib import ImageDrawer
from matplotlib.pyplot import imread
import numpy as np
img = imread("vinci_target.png")
drawer = ImageDrawer(img)
drawer.set_parameters(lw=2, color="white", alpha=0.5)
drawer.line(8, 60, 280, 60)
drawer.circle(123, 130, 50, facecolor="yellow", lw=4)
drawer.markers("x", [82, 182], [218, 218], [50, 100])
drawer.rectangle(81, 330, 100, 30, facecolor="blue")
drawer.text(10, 50, u"Mona Lisa", fontsize=40)
drawer.ellipse(119, 255, 200, 100, 100, facecolor="red")
%array_image drawer.to_array()
下面的两个例子为图表添加TK和QT的GUI控制面板：
%exec_python -m scpy2.matplotlib.tk_panel_demo
%exec_python -m scpy2.matplotlib.qt_panel_demo