80 lines
2.3 KiB
Python
80 lines
2.3 KiB
Python
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# -*- coding:utf-8 -*-
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# @Author len
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# @Create 2023/12/31 11:18
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import matplotlib.pyplot as plt
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import numpy as np
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def draw_star(color='blue'):
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# 定义五角星的顶点
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def star_point(angle, distance, center=(0, 0)):
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return center[0] + distance * np.cos(angle), center[1] + distance * np.sin(angle)
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# 创建星形的顶点坐标
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points = []
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for i in range(5):
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points.append(star_point(i * 2 * np.pi / 5, 1))
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points.append(star_point(i * 2 * np.pi / 5 + np.pi / 5, 0.5))
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# 创建图形和轴，设置背景为透明
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fig, ax = plt.subplots(figsize=(6, 6), dpi=100)
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fig.patch.set_alpha(0.0)
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# 绘制五角星，颜色为指定颜色
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star = plt.Polygon(points, closed=True, color=color)
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ax.add_patch(star)
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# 设置坐标轴的范围和比例
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ax.set_xlim(-1.5, 1.5)
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ax.set_ylim(-1.5, 1.5)
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ax.set_aspect('equal')
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# 移除坐标轴
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ax.axis('off')
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# 保存图像为PNG格式，背景设为透明
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plt.savefig('star.png', transparent=True, bbox_inches='tight', pad_inches=0)
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# 显示图像
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plt.show()
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# 调用函数并传入您选择的颜色
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draw_star(color='blue') # 您可以替换为任何喜欢的颜色
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# import matplotlib.pyplot as plt
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# import numpy as np
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#
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# def draw_filled_five_pointed_star(ax, center=(0, 0), size=1):
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# # 定义五芒星顶点的函数
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# def star_point(angle, distance):
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# return center[0] + distance * np.cos(angle), center[1] + distance * np.sin(angle)
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#
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# # 创建五个顶点
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# points = [star_point(i * 2 * np.pi / 5, size) for i in range(5)]
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# # 按照五芒星的顺序连接顶点
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# star_path = [points[i % 5] for i in [0, 2, 4, 1, 3, 0]]
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#
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# # 分解出x和y坐标
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# star_x, star_y = zip(*star_path)
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#
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# # 使用红色填充五芒星
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# ax.fill(star_x, star_y, 'r')
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#
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# # 创建图形和轴，设置透明背景
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# fig, ax = plt.subplots(figsize=(6, 6), dpi=100)
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# fig.patch.set_alpha(0.0)
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# ax.patch.set_alpha(0.0)
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#
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# # 绘制填充的五芒星
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# draw_filled_five_pointed_star(ax)
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#
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# # 设置图形的比例相等，并移除坐标轴
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# ax.set_aspect('equal')
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# ax.axis('off')
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#
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# # 保存图像为PNG格式，背景透明
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# plt.savefig('filled_five_pointed_star.png', transparent=True, bbox_inches='tight', pad_inches=0)
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#
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# # 显示图形
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# plt.show()
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