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【python】【绘制小程序】动态爱心绘制

news 来源：原创 2024/9/20 10:33:45

背景介绍

参考链接：https://blog.csdn.net/Python_HUHU/article/details/139703289
点的背景颜色在开始修改；文字的颜色在最后修改。
文字内容可以修改。

python 代码

import tkinter as tk
import random
from math import sin, cos, pi, log
from PIL import Image, ImageDraw, ImageFont  # 用于保存图片和生成GIFwidth = 888
height = 500
heartx = width / 2
hearty = height / 2
side = 11
heartcolor = "pink"  # 爱心颜色，可修改
# heartcolor = "gold"  # 爱心颜色，可修改class Heart:def __init__(self, generate_frame=20):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)self.generate_frame = generate_framefor frame in range(generate_frame):self.calc(frame)def build(self, number):for _ in range(number):t = random.uniform(0, 2 * pi)x, y = heart_function(t)self._points.add((x, y))for _x, _y in list(self._points):for _ in range(3):x, y = scatter_inside(_x, _y, 0.05)self._edge_diffusion_points.add((x, y))point_list = list(self._points)for _ in range(4000):x, y = random.choice(point_list)x, y = scatter_inside(x, y, 0.17)self._center_diffusion_points.add((x, y))@staticmethoddef calc_position(x, y, ratio):force = 1 / (((x - heartx) ** 2 + (y - hearty) ** 2) ** 0.520)  # 魔法参数dx = ratio * force * (x - heartx) + random.randint(-1, 1)dy = ratio * force * (y - hearty) + random.randint(-1, 1)return x - dx, y - dydef calc(self, generate_frame):ratio = 10 * curve(generate_frame / 10 * pi)  # 圆滑的周期的缩放比例all_points = []for x, y in self._points:x, y = self.calc_position(x, y, ratio)size = random.randint(1, 3)all_points.append((x, y, size))for x, y in self._edge_diffusion_points:x, y = self.calc_position(x, y, ratio)size = random.randint(1, 2)all_points.append((x, y, size))for x, y in self._center_diffusion_points:x, y = self.calc_position(x, y, ratio)size = random.randint(1, 2)all_points.append((x, y, size))self.all_points[generate_frame] = all_pointsdef render(self, draw, render_frame):for x, y, size in self.all_points[render_frame % self.generate_frame]:draw.rectangle([x, y, x + size, y + size], fill=heartcolor)def heart_function(t, shrink_ratio: float = side):x = 16 * (sin(t) ** 3)y = -(13 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(4 * t))x *= shrink_ratioy *= shrink_ratiox += heartxy += heartyreturn int(x), int(y)def scatter_inside(x, y, beta=0.15):ratio_x = - beta * log(random.random())ratio_y = - beta * log(random.random())dx = ratio_x * (x - heartx)dy = ratio_y * (y - hearty)return x - dx, y - dydef curve(p):return 2 * (2 * sin(4 * p)) / (2 * pi)# 保存动态爱心为GIF并添加文字
def save_gif():frames = []heart = Heart()for frame in range(heart.generate_frame):img = Image.new('RGB', (width, height), 'black')draw = ImageDraw.Draw(img)# 绘制爱心heart.render(draw, frame)# 绘制中间的文字# text = "I Love You!"text = "Miss ❤ U"# font = ImageFont.truetype("arial.ttf", 40)  # 确保系统上有 Arial 字体文件或替换为可用的字体文件font = ImageFont.truetype("./font/DejaVu-Sans.ttf", 40)  # 确保系统上有 Arial 字体文件或替换为可用的字体文件# 获取文本的边界框bbox = draw.textbbox((0, 0), text, font=font)text_width, text_height = bbox[2] - bbox[0], bbox[3] - bbox[1]text_x = (width - text_width) / 2text_y = (height - text_height) / 2# draw.text((text_x, text_y), text, font=font, fill="#FF99CC")draw.text((text_x, text_y), text, font=font, fill="gold")frames.append(img)# 保存为 GIF 动画frames[0].save('./result/1_2_3_heart_animation_with_text.gif', save_all=True, append_images=frames[1:], duration=160, loop=0)if __name__ == '__main__':save_gif()

绘制结果

在这里插入图片描述

进阶修改：周围环绕文字，修改背景颜色

import tkinter as tk
import random
from math import sin, cos, pi, log, atan2
from PIL import Image, ImageDraw, ImageFontwidth = 666
height = 460
heartx = width / 2
hearty = height / 2
side = 11
heartcolor = "pink"  # 爱心颜色，可修改
# heartcolor = "gold"  # 爱心颜色，可修改# 定义马卡龙蓝色
macaron_blue = "#A2C2E1"
cream_white = "#F5F5F5"
cyan_green = "#00FFFF"class Heart:def __init__(self, generate_frame=20):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)                            ### 周围点的数量self.generate_frame = generate_framefor frame in range(generate_frame):self.calc(frame)def build(self, number):for _ in range(number):t = random.uniform(0, 2 * pi)x, y = heart_function(t)self._points.add((x, y))for _x, _y in list(self._points):for _ in range(3):x, y = scatter_inside(_x, _y, 0.05)self._edge_diffusion_points.add((x, y))point_list = list(self._points)for _ in range(4000):x, y = random.choice(point_list)x, y = scatter_inside(x, y, 0.17)self._center_diffusion_points.add((x, y))@staticmethoddef calc_position(x, y, ratio):force = 1 / (((x - heartx) ** 2 + (y - hearty) ** 2) ** 0.520)  # 魔法参数dx = ratio * force * (x - heartx) + random.randint(-1, 1)dy = ratio * force * (y - hearty) + random.randint(-1, 1)return x - dx, y - dydef calc(self, generate_frame):ratio = 10 * curve(generate_frame / 10 * pi)  # 圆滑的周期的缩放比例all_points = []for x, y in self._points:x, y = self.calc_position(x, y, ratio)size = random.randint(1, 3)all_points.append((x, y, size))for x, y in self._edge_diffusion_points:x, y = self.calc_position(x, y, ratio)size = random.randint(1, 2)all_points.append((x, y, size))for x, y in self._center_diffusion_points:x, y = self.calc_position(x, y, ratio)size = random.randint(1, 2)all_points.append((x, y, size))self.all_points[generate_frame] = all_pointsdef render(self, draw, render_frame):for x, y, size in self.all_points[render_frame % self.generate_frame]:draw.rectangle([x, y, x + size, y + size], fill=heartcolor)def heart_function(t, shrink_ratio: float = side):x = 16 * (sin(t) ** 3)y = -(13 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(4 * t))x *= shrink_ratioy *= shrink_ratiox += heartxy += heartyreturn int(x), int(y)def scatter_inside(x, y, beta=0.15):ratio_x = - beta * log(random.random())ratio_y = - beta * log(random.random())dx = ratio_x * (x - heartx)dy = ratio_y * (y - hearty)return x - dx, y - dydef curve(p):return 2 * (2 * sin(4 * p)) / (2 * pi)# 计算最小外接圆的半径
def calculate_bounding_circle_radius():max_distance = 0for t in range(0, 360):radian = t * pi / 180x, y = heart_function(radian)distance = ((x - heartx) ** 2 + (y - hearty) ** 2) ** 0.5if distance > max_distance:max_distance = distancereturn max_distance# 绘制外接圆上的文字
def draw_text_on_circle(draw, text, radius, font):# char_angle = 2 * pi / len(text)  # 每个字符的角度char_angle = pi / len(text)  # 每个字符的角度for i, char in enumerate(text):angle = i * char_angle  - pi + 0.19angle = angle * -1x = heartx + radius * cos(angle)y = hearty + radius * sin(angle)bbox = draw.textbbox((0, 0), char, font=font)text_width, text_height = bbox[2] - bbox[0], bbox[3] - bbox[1]# draw.text((x - text_width / 2, y - text_height / 2), char, font=font, fill="pink")draw.text((x - text_width / 2, y - text_height / 2), char, font=font, fill=cyan_green)# 保存动态爱心为GIF并添加文字
def save_gif():frames = []heart = Heart()circle_radius = calculate_bounding_circle_radius() + 20  # 外接圆半径，稍微大一些以避免重叠for frame in range(heart.generate_frame):# img = Image.new('RGB', (width, height), 'black')# img = Image.new('RGB', (width, height), cream_white)       ### 背景颜色修改img = Image.new('RGB', (width, height), macaron_blue)       ### 背景颜色修改draw = ImageDraw.Draw(img)# 绘制爱心heart.render(draw, frame)# 绘制中间的文字text = "爱 你 呦"font = ImageFont.truetype("./font/simsun.ttc", 40)bbox = draw.textbbox((0, 0), text, font=font)text_width, text_height = bbox[2] - bbox[0], bbox[3] - bbox[1]text_x = (width - text_width) / 2text_y = (height - text_height) / 2draw.text((text_x, text_y), text, font=font, fill="gold")# draw.text((text_x, text_y), text, font=font, fill="pink")# 绘制外接圆上的文字# circle_text = "十个勤天 做大做强"# circle_font = ImageFont.truetype("./font/simsun.ttc", 36)# draw_text_on_circle(draw, circle_text, circle_radius, circle_font)frames.append(img)# 保存为 GIF 动画frames[0].save('./result/1_2_3_heart_animation_with_text.gif', save_all=True, append_images=frames[1:], duration=160, loop=0)if __name__ == '__main__':save_gif()