目录
效果预览
打包的exe文件：pyhton实现的爱心动画exe文件资源-CSDN文库
https://download.csdn.net/download/YYKand/89117257
功能的实现
优化内容
1.使用线程
引入线程，创建线程池。
将生成光环点、点的偏移放入线程中，提高运行速度
2.优化计算逻辑
提前生成随机数，减少在循环中不断生成。
# 计算每一帧的点的方法
def calc(self, generate_frame):
# 根据动画帧数计算比例和光环半径
ratio = 10 * curve(generate_frame / 10 * pi)
halo_radius = int(4 + 6 * (1 + curve(generate_frame / 10 * pi)))
halo_number = int(3000 + 4000 * abs(curve(generate_frame / 10 * pi) ** 2))
all_points = []
points_to_add = []
# 预生成随机偏移量和点的大小
random_offsets = [(random.randint(-14, 14), random.randint(-14, 14)) for _ in range(halo_number)]
random_sizes = [random.randint(0, 2) for _ in range(halo_number)]
# 使用线程池并行生成光环点
def generate_halo_points(halo_number, random_offsets, ratio, halo_radius, all_points):
heart_halo_point = set() # 生成光环点的集合
for i in range(halo_number):
t = random.uniform(0, 2 * pi)
x, y = heart_function(t, shrink_ratio=11.6)
x, y = shrink(x, y, halo_radius)
if (x, y) not in heart_halo_point:
heart_halo_point.add((x, y))
x_offset, y_offset = random_offsets[i]
x += x_offset
y += y_offset
size = random_sizes[i]
all_points.append((x, y, size))
# 生成轮廓、边缘扩散点和中心扩散点
for x, y in self._points:
x, y = self.calc_position(x, y, ratio)
size = random.randint(0, 2)
points_to_add.append((x, y, size))
for x, y in self._edge_diffusion_points:
x, y = self.calc_position(x, y, ratio)
size = random.randint(0, 2)
points_to_add.append((x, y, size))
for x, y in self._center_diffusion_points:
x, y = self.calc_position(x, y, ratio)
size = random.randint(0, 2)
points_to_add.append((x, y, size))
# 将生成的点添加到 all_points
all_points.extend(points_to_add)
self.all_points[generate_frame] = all_points
# 创建线程池
with ThreadPoolExecutor(max_workers=1) as executor:
# 提交光环点生成任务
executor.submit(generate_halo_points, halo_number, random_offsets, ratio, halo_radius, all_points)
3.提取变量
将用户可能需要改动的视觉效果提取出来：字体颜色，文本，刷新帧数（结果测试这个帧数变化效果不大）
HEART_COLOR = "#FF99CC" # 设置爱心的颜色
TXT_DATE = "I Love You" # 设置文本内容
TXT_COLOR = "#FF99CC" # 设置字体颜色
Frames_Number = 20 # 动画刷新的帧数4.注释
更详细的代码注释，方便更多的朋友学习研究使用
完整代码
import random
from math import sin, cos, pi, log
from tkinter import *
from concurrent.futures import ThreadPoolExecutor
CANVAS_WIDTH = 640 # 画布宽度
CANVAS_HEIGHT = 480 # 画布高度
CANVAS_CENTER_X = CANVAS_WIDTH / 2 # 画布中心的x坐标
CANVAS_CENTER_Y = CANVAS_HEIGHT / 2 # 画布中心的y坐标
IMAGE_ENLARGE = 11 # 图像放大的比例
HEART_COLOR = "#FF99CC" # 设置爱心的颜色
TXT_DATE = "I Love You" # 设置文本内容
TXT_COLOR = "#FF99CC" # 设置字体颜色
Frames_Number = 60 # 动画刷新的帧数
# 窗口居中显示的辅助函数
def center_window(root, width, height):
screenwidth = root.winfo_screenwidth() # 获取显示屏宽度
screenheight = root.winfo_screenheight() # 获取显示屏高度
size = '%dx%d+%d+%d' % (width, height,
(screenwidth - width) /2,
(screenheight - height) / 2) # 设置窗口居中参数
root.geometry(size) # 让窗口居中显示
# 定义计算爱心形状的函数
def heart_function(t, shrink_ratio: float = IMAGE_ENLARGE):
# 使用参数t计算爱心形状的x和y坐标，并根据缩放比例进行缩放
x = 16 * (sin(t) ** 3)
y = -(13 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(4 * t))
# 根据缩放比例进行缩放
x *= shrink_ratio
y *= shrink_ratio
# 将计算出的坐标移动到画布中央
x += CANVAS_CENTER_X
y += CANVAS_CENTER_Y
# 返回整型的坐标值
return int(x), int(y)
# 在爱心内部根据beta值生成随机点
def scatter_inside(x, y, beta=0.15):
# 根据beta值计算随机偏移量
ratio_x = - beta * log(random.random())
ratio_y = - beta * log(random.random())
# 计算并返回偏移后的坐标
dx = ratio_x * (x - CANVAS_CENTER_X)
dy = ratio_y * (y - CANVAS_CENTER_Y)
return x - dx, y - dy
# 定义缩小点的函数
def shrink(x, y, ratio):
# 计算力量
force = -1 / (((x - CANVAS_CENTER_X) ** 2 +(y - CANVAS_CENTER_Y) ** 2) ** 0.6)
# 计算并返回缩小后的坐标
dx = ratio * force * (x - CANVAS_CENTER_X)
dy = ratio * force * (y - CANVAS_CENTER_Y)
return x - dx, y - dy
# 定义曲线函数
def curve(p):
return 2 * (2 * sin(4 * p)) / (2 * pi) # 根据参数p计算并返回曲线值
# 定义Heart类，用于生成和渲染爱心形状
class Heart:
def __init__(self, generate_frame=Frames_Number): # 初始化方法，生成爱心形状的点集合
self._points = set() # 原始爱心坐标集合
self._edge_diffusion_points = set() # 边缘扩散效果点坐标集合
self._center_diffusion_points = set() # 中心扩散效果点坐标集合
self.all_points = {} # 每帧动态点坐标
self.build(2000) # 构建爱心形状的点集合
self.random_halo = 500 # 初始化光环点的数量
self.generate_frame = generate_frame # 动画帧数
for frame in range(generate_frame): # 循环计算每一帧的点
self.calc(frame)
def build(self, number): # 构建爱心形状的点集合的方法
# 使用heart_function函数生成number个点，构成原始爱心形状
self._points = {heart_function(random.uniform(0, 2 * pi)) for _ in range(number)}
# 爱心内扩散，生成边缘扩散效果点坐标集合
edge_diffusion_points = set()
for _x, _y in self._points:
for _ in range(3):
x, y = scatter_inside(_x, _y, 0.05)
edge_diffusion_points.add((x, y))
self._edge_diffusion_points = edge_diffusion_points
# 爱心内再次扩散，生成中心扩散效果点坐标集合
center_diffusion_points = set()
point_list = list(self._points)
for _ in range(4000):
x, y = random.choice(point_list)
x, y = scatter_inside(x, y, 0.17)
center_diffusion_points.add((x, y))
self._center_diffusion_points = center_diffusion_points
# 计算点位置的静态方法
@staticmethod
def calc_position(x, y, ratio):
# 计算力量
force = 1 / (((x - CANVAS_CENTER_X) ** 2 +(y - CANVAS_CENTER_Y) ** 2) ** 0.520)
# 计算并返回偏移后的坐标
dx = ratio * force * (x - CANVAS_CENTER_X) + random.randint(-1, 1)
dy = ratio * force * (y - CANVAS_CENTER_Y) + random.randint(-1, 1)
return x - dx, y - dy
# 计算每一帧的点的方法
def calc(self, generate_frame):
# 根据动画帧数计算比例和光环半径
ratio = 10 * curve(generate_frame / 10 * pi)
halo_radius = int(4 + 6 * (1 + curve(generate_frame / 10 * pi)))
halo_number = int(3000 + 4000 * abs(curve(generate_frame / 10 * pi) ** 2))
all_points = []
points_to_add = []
# 预生成随机偏移量和点的大小
random_offsets = [(random.randint(-14, 14), random.randint(-14, 14)) for _ in range(halo_number)]
random_sizes = [random.randint(0, 2) for _ in range(halo_number)]
# 使用线程池并行生成光环点
def generate_halo_points(halo_number, random_offsets, ratio, halo_radius, all_points):
heart_halo_point = set() # 生成光环点的集合
for i in range(halo_number):
t = random.uniform(0, 2 * pi)
x, y = heart_function(t, shrink_ratio=11.6)
x, y = shrink(x, y, halo_radius)
if (x, y) not in heart_halo_point:
heart_halo_point.add((x, y))
x_offset, y_offset = random_offsets[i]
x += x_offset
y += y_offset
size = random_sizes[i]
all_points.append((x, y, size))
# 生成轮廓、边缘扩散点和中心扩散点
for x, y in self._points:
x, y = self.calc_position(x, y, ratio)
size = random.randint(0, 2)
points_to_add.append((x, y, size))
for x, y in self._edge_diffusion_points:
x, y = self.calc_position(x, y, ratio)
size = random.randint(0, 2)
points_to_add.append((x, y, size))
for x, y in self._center_diffusion_points:
x, y = self.calc_position(x, y, ratio)
size = random.randint(0, 2)
points_to_add.append((x, y, size))
# 将生成的点添加到 all_points
all_points.extend(points_to_add)
self.all_points[generate_frame] = all_points
# 创建线程池
with ThreadPoolExecutor(max_workers=1) as executor:
# 提交光环点生成任务
executor.submit(generate_halo_points, halo_number, random_offsets, ratio, halo_radius, all_points)
# 在指定的画布上渲染爱心形状
def render(self, render_canvas, render_frame):
frame_key = render_frame % self.generate_frame
if frame_key in self.all_points:
points = self.all_points[frame_key]
else:
points = []
for x, y, size in points:
render_canvas.create_rectangle(
x, y, x + size, y + size, width=0, fill=HEART_COLOR)
# 定义绘制爱心并实现动画效果的函数
def draw(main: Tk, render_canvas: Canvas, render_heart: Heart, render_frame=0):
render_canvas.delete('all') # 清除画布上的所有内容，并重新渲染爱心形状
render_heart.render(render_canvas, render_frame)
main.after(160, draw, main, render_canvas, render_heart, render_frame + 1) # 递归调用draw函数以实现动画效果
if __name__ == '__main__':
root = Tk()
root.title("爱心")
root.resizable(0, 0) # 锁定界面大小
center_window(root, CANVAS_WIDTH, CANVAS_HEIGHT) # 窗口居中显示
canvas = Canvas(root, bg='black', height=CANVAS_HEIGHT, width=CANVAS_WIDTH) # 创建画布并添加到窗口
canvas.pack()
heart = Heart() # 创建爱心对象并开始绘制
draw(root, canvas, heart) # 调用draw函数开始动画
# 在画布中心显示文本
Label(root,
text=TXT_DATE,
bg="black",
fg=TXT_COLOR,
font="Helvetic 20 bold").place(relx=.5, rely=.5, anchor=CENTER)
root.mainloop() # 启动Tkinter事件循环
性能分析
貌似刚刚启动的时候，运行内测会比较高，后面则稳定在40-60MB（可能会因为电脑性能不一致）
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