1. 使用Path绘制如下图所示三角形。

import matplotlib.pyplot as plt

# 创建Path对象
path = plt.Path([(0, 0), (0.5, 1), (1, 0)])

# 创建一个图形对象
fig, ax = plt.subplots()

# 绘制路径
patch = plt.PathPatch(path, facecolor='none', edgecolor='black')
ax.add_patch(patch)

# 设置坐标轴范围
ax.set_xlim(-0.1, 1.1)
ax.set_ylim(-0.1, 1.1)

# 显示结果
plt.show()


相关问题

使用Path绘制如下图所示三角形

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.Path2D;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class Triangle extends JPanel {

    private static final long serialVersionUID = 1L;

    public void paint(Graphics g) {
        Graphics2D g2d = (Graphics2D) g;

        Path2D path = new Path2D.Float();
        path.moveTo(50, 50);
        path.lineTo(150, 50);
        path.lineTo(100, 150);
        path.closePath();

        g2d.draw(path);
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("Triangle");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.add(new Triangle());
        frame.setSize(300, 300);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }
}

运行结果如下图所示：