【python】【绘制小程序】动态爱心绘制

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GIF

width = 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_frame
        for 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))

    @staticmethod
    def 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 - dy

    def 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_points

    def 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_ratio
    y *= shrink_ratio
    x += heartx
    y += hearty
    return 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 - dy

def 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) / 2
        text_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, ImageFont

width = 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_frame
        for 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))

    @staticmethod
    def 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 - dy

    def 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_points

    def 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_ratio
    y *= shrink_ratio
    x += heartx
    y += hearty
    return 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 - dy

def 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 = 0
    for t in range(0, 360):
        radian = t * pi / 180
        x, y = heart_function(radian)
        distance = ((x - heartx) ** 2 + (y - hearty) ** 2) ** 0.5
        if distance > max_distance:
            max_distance = distance
    return 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 + 0.19
        angle = angle * -1
        x = 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) / 2
        text_y = (height - text_height) / 2
        draw.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()