Python动态绘图，包括椭圆、双曲线、抛物线、摆线、心形线等常见曲线的生成。

import numpy as np import matplotlib.pyplot as plt import matplotlib.animation as animation class drawAni(): # func为参数方程 def __init__(self,traceFuncs, para, txtFunc, ts,xlim,ylim,figsize=(16,9),initFunc=None): self.funcs = traceFuncs # 画图代码 self.para = para # 画图参数 self.txtFunc = txtFunc self.fig = plt.figure(figsize=figsize) ax = self.fig.add_subplot(autoscale_on=False, xlim=xlim,ylim=ylim) ax.grid() if initFunc!=None: initFunc(ax) self.N = len(para) # 轨迹个数 self.traces = [ax.plot([],[],p['flag'], lw=p['lw'])[0] for p in para] self.text = ax.text(0.02,0.85,'',transform=ax.transAxes) self.initXY(self.N) self.ts = ts #此为自变量 self.run(ts) def initXY(self,N): self.xs = [[] for _ in range(N)] self.ys = [[] for _ in range(N)] def animate(self,t): if(t==self.ts[0]): self.initXY(self.N) for i in range(self.N): x,y = self.funcs[i](t) if self.para[i]['flush']==False: self.xs[i].append(x) self.ys[i].append(y) self.traces[i].set_data(self.xs[i], self.ys[i]) else: self.traces[i].set_data(x,y) self.text.set_text(self.txtFunc(t)) return self.traces+[self.text] def run(self,ts): self.ani = animation.FuncAnimation( self.fig, self.animate, ts, interval=5, blit=True) plt.subplots_adjust(left=0.05, right=0.95, top=0.95, bottom=0.1) plt.show() def save(self,saveName): self.ani.save(saveName)