python中有很多方法去画心形图用来表白，其中最典型的就是数学中心型曲线：r=a(1-sinθ)，下面就总结以下python中那些画心形图的方法。末尾有一个完美的表白工具，可以直接使用。

数学中美丽的心形线：r=a(1-sinθ)

import numpy as np
import matplotlib.pyplot as plt
T = np.linspace(0, 2 * np.pi, 1024) # 角度范围 0-2*pi，划为1024等份
plt.axes(polar=True) # 开启极坐标模式
plt.plot(T, 1. - np.sin(T), color=\"r\")
plt.show()

利用python的turtle教你动态的爱心图表白

import turtle
turtle.color(\'red\', \'pink\')
turtle.pensize(2)
turtle.pendown()
turtle.setheading(150)
turtle.begin_fill()
turtle.fd(50)
turtle.circle(50 * -3.745, 45)
turtle.circle(50 * -1.431, 165)
turtle.left(120)
turtle.circle(50 * -1.431, 165)
turtle.circle(50 * -3.745, 45)
turtle.fd(50)
turtle.end_fill()

利用python的plt教你画渐变颜色爱心图表白

import matplotlib.pyplot as plt
from matplotlib import animation
import numpy as np
import math

t = np.linspace(0, math.pi, 1000)
x = np.sin(t)
y = np.cos(t) + np.power(x, 2.0 / 3) # 心型曲线的参数方程

plt.scatter(x, y, c=y, cmap=plt.cm.Reds, edgecolor=\'none\', s=40)
plt.scatter(-x, y, c=y, cmap=plt.cm.Reds, edgecolor=\'none\', s=40) # 渐变颜色曲线
# 填充曲线
plt.fill(x, y, \'r\', alpha=0.6)
plt.fill(-x, y, \'r\', alpha=0.6)

plt.axis([-2, 2, -2, 2]) # 坐标轴范围
plt.title(\"I love you\", fontsize=30)
# 取消坐标轴显示
plt.axis(\'off\')
# 保存文件
plt.savefig(\"❤图1.png\") # 在 plt.show() 之前调用 plt.savefig()
plt.show()

alpha=0

alpha=0.3

alpha=0.6

利用python的plt教你画3D爱心图表白

# coding=utf-8
# 3D心形

import matplotlib.pyplot as plt
import numpy as np
import matplotlib

matplotlib.rcParams[\'axes.unicode_minus\'] = False

def 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**3

def plot_implicit(fn, bbox=(-1.5, 1.5)):
xmin, xmax, ymin, ymax, zmin, zmax = bbox*3
fig = plt.figure()
ax = fig.add_subplot(111, projection=\'3d\')
A = np.linspace(xmin, xmax, 100) # 轮廓分辨率
B = np.linspace(xmin, xmax, 40) # 切片数量
A1, A2 = np.meshgrid(A, A) # 绘制等高线的网格

for z in B: # 在XY平面绘制等高线
X, Y = A1, A2
Z = fn(X, Y, z)
cset = ax.contour(X, Y, Z+z, [z], zdir=\'z\', colors=(\'r\',))

for y in B: # 在XZ平面绘制等高线
X, Z = A1, A2
Y = fn(X, y, Z)
cset = ax.contour(X, Y+y, Z, [y], zdir=\'y\', colors=(\'red\',))

for x in B: # 在YZ平面绘制等高线
Y, Z = A1, A2
X = fn(x, Y, Z)
cset = 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)
# 标题
plt.title(\"I love you\", fontsize=30)
# 取消坐标轴显示
plt.axis(\'off\')
# 保存文件
plt.savefig(\"3D_❤图.png\") # 在 plt.show() 之前调用 plt.savefig()
plt.show()

if __name__ == \'__main__\':
plot_implicit(heart_3d)

利用python一行代码教你画爱心图表白

print(\'\\n\'.join([\'\'.join([(\'ILOVEYOUWP\'[(x-y) % 10]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(-60,60)])for y in range(30,-30,-1)]))

利用python几行代码教你画爱心图表白

import time
ILY = input(\'请输入你想对她说的话:\')
for item in ILY.split():
print(\'\\n\'.join([\'\'.join([(item[(x-y) % len(item)] 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(-60, 60)]) for y in range(30, -30, -1)]))
time.sleep(3);

完美表白工具

import turtle
import time

# 清屏函数
def clear_all():
turtle.penup()
turtle.goto(0, 0)
turtle.color(\'white\')
turtle.pensize(800)
turtle.pendown()
turtle.setheading(0)
turtle.fd(300)
turtle.bk(600)

# 重定位海龟的位置
def go_to(x, y, state):
turtle.pendown() if state else turtle.penup()
turtle.goto(x, y)

# 画爱心
def draw_heart(size):
turtle.color(\'red\', \'pink\')
turtle.pensize(2)
turtle.pendown()
turtle.setheading(150)
turtle.begin_fill()
turtle.fd(size)
turtle.circle(size * -3.745, 45)
turtle.circle(size * -1.431, 165)
turtle.left(120)
turtle.circle(size * -1.431, 165)
turtle.circle(size * -3.745, 45)
turtle.fd(size)
turtle.end_fill()

# 画出发射爱心的小人
def draw_people(x, y):
turtle.penup()
turtle.goto(x, y)
turtle.pendown()
turtle.pensize(2)
turtle.color(\'black\')
turtle.setheading(0)
turtle.circle(60, 360)
turtle.penup()
turtle.setheading(90)
turtle.fd(75)
turtle.setheading(180)
turtle.fd(20)
turtle.pensize(4)
turtle.pendown()
turtle.circle(2, 360)
turtle.setheading(0)
turtle.penup()
turtle.fd(40)
turtle.pensize(4)
turtle.pendown()
turtle.circle(-2, 360)
turtle.penup()
turtle.goto(x, y)
turtle.setheading(-90)
turtle.pendown()
turtle.fd(20)
turtle.setheading(0)
turtle.fd(35)
turtle.setheading(60)
turtle.fd(10)
turtle.penup()
turtle.goto(x, y)
turtle.setheading(-90)
turtle.pendown()
turtle.fd(40)
turtle.setheading(0)
turtle.fd(35)
turtle.setheading(-60)
turtle.fd(10)
turtle.penup()
turtle.goto(x, y)
turtle.setheading(-90)
turtle.pendown()
turtle.fd(60)
turtle.setheading(-135)
turtle.fd(60)
turtle.bk(60)
turtle.setheading(-45)
turtle.fd(30)
turtle.setheading(-135)
turtle.fd(35)
turtle.penup()

# 第一个画面，显示文字
def page0():
turtle.penup()
turtle.goto(-350, 0)
turtle.color(\'red\')
turtle.write(\'有你生活成缤纷多彩\', font=(\'宋体\', 60, \'normal\'))
turtle.penup()
turtle.goto(-160, -180)
draw_heart(30)
turtle.penup()
turtle.goto(0, -180)
draw_heart(30)
turtle.penup()
turtle.goto(160, -180)
draw_heart(30)
time.sleep(3)

# 第二个画面，显示发射爱心的小人
def page1():
turtle.speed(10)
turtle.penup()
turtle.goto(-200, -200)
turtle.color(\'red\')
turtle.pendown()
turtle.write(\'WYJ WP\', font=(\'wisdom\', 50, \'normal\'))
turtle.penup()
turtle.goto(0, -180)
draw_heart(10)
draw_people(-250, 20)
turtle.penup()
turtle.goto(-150, -30)
draw_heart(14)
turtle.penup()
turtle.goto(-20, -60)
draw_heart(25)
turtle.penup()
turtle.goto(250, -100)
draw_heart(45)
turtle.hideturtle()
# 写送给谁
turtle.pencolor(\"PINK\")
turtle.penup()
turtle.goto(300, 200)
turtle.write(str, move=False, align=\'center\', font=(\"方正舒体\", 30, \'normal\'))
time.sleep(3)

def main():
turtle.setup(900, 500)
page0()
clear_all()
page1()
clear_all()
turtle.done()

if __name__ == \'__main__\':
str = input(\'请输入表白语：\')
main()

来源：https://www.cnblogs.com/nhyq-wyj/p/14940068.html
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