python-分享篇-draw heart

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heart

代码

import numpy as np
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3Ddef heart_3d(x,y,z):return (x**2+(9/4)*y**2+z**2-1)**3-x**2*z**3-(9/80)*y**2*z**3def plot_implicit(fn,bbox=(-1.5,1.5)):xmin,xmax,ymin,ymax,zmin,zmax = bbox*3fig = plt.figure('HEART')ax = fig.add_subplot(111,projection = '3d')A = np.linspace(xmin,xmax,80)B = np.linspace(xmin,xmax,30)A1,A2 = np.meshgrid(A,A)for z in B:X,Y = A1,A2Z = fn(X,Y,z)cest = ax.contour(X,Y,z+Z,[z],zdir='z',colors=('r',))for y in B:X,Z = A1,A2Y = fn(X,y,Z)cest = ax.contour(X,Y+y,Z,[y],zdir = 'y',colors = ('red',))for x in B :Y,Z=A1,A2X = fn(x,Y,Z)cest = ax.contour(X+x,Y,Z,[x],zdir = 'x',colors = ('red',))ax.set_zlim3d(zmin,zmax)ax.set_xlim3d(xmin,xmax)ax.set_ylim3d(ymin,ymax)plt.show()if __name__=='__main__':plot_implicit(heart_3d)

效果

draw-heart

代码

# -*- coding: utf-8 -*-
from turtle import *
def curvemove():for i in range(200):right(1)forward(1)
color('red','pink')        
begin_fill()
left(140)
forward(111.65)
curvemove()
left(120)
curvemove()
forward(111.65)
end_fill()
done()

效果

heart-shape-chart

代码

import numpy as np
import matplotlib.pyplot as plt
from matplotlib.animation import FuncAnimation
fig, ax = plt.subplots()
ln, = ax.plot([], [], '-',color='r', lw=1)
time_template = 'LOVE = %.1fs'
time_text = ax.text(0.05, 0.9, '', transform=ax.transAxes)
def init():ax.set_xlim(-3,3)ax.set_ylim(-2, 3)return ln,
def update(ii):xdata, ydata = [], []for i in range(0,183):xi=(182-i)/100xdata.append(0.01*i-1.82)yi=(xi**(2/3))+(0.9*(3.3-xi**2)**0.5)*np.cos(ii*(np.pi)*xi)if type(yi)=='complex':yi=np.around(abs(yi),decimals=4)yi=np.around(yi, decimals=3)ydata.append(yi)for i in range(0,182):xi=i/100xdata.append(xi) yi=(xi**(2/3))+(0.9*(3.3-xi**2)**0.5)*np.cos(ii*(np.pi)*xi)if type(yi)=='complex':yi=np.around(abs(yi),decimals=4)yi=np.around(yi, decimals=3)ydata.append(yi)ln.set_data(xdata, ydata)time_text.set_text(time_template %(ii))return ln,
ani = FuncAnimation(fig, update, np.linspace(0, 13.14, 100),init_func=init, interval=100)
ani.save('love.gif', writer='imagemagick', fps=60)
plt.show()

效果

heart-stitching-by-string

代码

print('\n'.join([''.join([('ForChange'[(x-y)%8]if((x*0.05)**2+(y*0.1)**2-1)**3-(x*0.05)**2*(y*0.1)**3<=0 else' ')for x in range(-30,30)])for y in range(15,-15,-1)]))

效果

love-you

代码

import matplotlib.pyplot as plt
import seaborn
import numpyl = numpy.arange(0, 4, 0.01)
L = 1.0 / ltheta = numpy.arange(-4, 4, 0.01)
o = 3.0 * numpy.cos(theta)
O = 3.0 * numpy.sin(theta)v = numpy.arange(-4, 4, 0.01)
V = numpy.abs(-2.0 * v)e = numpy.arange(-3, 3, 0.01)
E = -1.0 * numpy.abs(numpy.sin(e))y = numpy.arange(-10, 10, 0.01)
Y = numpy.log2(numpy.abs(y))u = numpy.arange(-4, 4, 0.01)
U = 2.0 * u ** 2points = []
for heartY in numpy.linspace(-100, 100, 500):for heartX in numpy.linspace(-100, 100, 500):if ((heartX*0.03)**2+(heartY*0.03)**2-1)**3-(heartX*0.03)**2*(heartY*0.03)**3 <= 0:points.append({"x": heartX, "y": heartY})heart_x = list(map(lambda point: point["x"], points))
heart_y = list(map(lambda point: point["y"], points))fig = plt.figure(figsize=(13, 7))ax_L = fig.add_subplot(2, 4, 1)
ax_O = fig.add_subplot(2, 4, 2)
ax_V = fig.add_subplot(2, 4, 3)
ax_E = fig.add_subplot(2, 4, 4)
ax_Y = fig.add_subplot(2, 4, 5)
ax_O_2 = fig.add_subplot(2, 4, 6)
ax_U = fig.add_subplot(2, 4, 7)
ax_heart = fig.add_subplot(2, 4, 8)plt.plot(colos='tomato')
ax_L.plot(l, L)
ax_O.plot(o, O)
ax_V.plot(v, V)
ax_E.plot(E, e)
ax_Y.plot(y, Y)
ax_Y.axis([-10.0, 10.0, -10.0, 5.0])
ax_O_2.plot(o, O)
ax_U.plot(u, U)
ax_heart.scatter(heart_x, heart_y, s=10, alpha=0.5)seaborn.set_style('whitegrid')plt.show()

效果

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