【Python ezdxf+matplotlib】显示AutoCAD导出的.dxf格式文件

代码： 

import ezdxf,matplotlib
import matplotlib.pyplot as plt
from matplotlib.patches import Polygon
matplotlib.use('TkAgg')  # 避免Matplotlib版本与其他相关库的兼容性问题

def display_dxf(file_path):
    doc = ezdxf.readfile(file_path)
    msp = doc.modelspace()  # 获取DXF文档的模型空间
    # for entity in msp:  # 迭代模型空间中的实体
    #     print(entity)       # 打印实体信息

    fig, ax = plt.subplots()
    for entity in msp:
        # if entity.dxftype() == 'LINE':
        #     start_point = entity.dxf.start
        #     end_point = entity.dxf.end
        #     ax.plot([start_point[0], end_point[0]], [start_point[1], end_point[1]], 'b-')
        if entity.dxftype() == 'LWPOLYLINE':
            points = list(entity.get_points('xy'))  # [(59.44499922, 76.43999952, 0.0, 0.0, 0.0), (59.44499922, 78.5400004, 0.0, 0.0, 0.0)]
            x, y = zip(*points)
            ax.plot(x, y, 'r-')
        elif entity.dxftype() == 'CIRCLE':
            center = entity.dxf.center
            radius = entity.dxf.radius
            circle = plt.Circle(center, radius, color='g', fill=False)
            ax.add_patch(circle)
        elif entity.dxftype() == 'TEXT':
            insertion_point = entity.dxf.insert
            text = entity.dxf.text
            ax.text(insertion_point[0], insertion_point[1], text, fontsize=8)
        # if entity.dxftype() == 'INSERT':
        #     block = doc.blocks[entity.dxf.name]
        #     for e in block:
        #         if e.dxftype() == 'LWPOLYLINE':
        #             points = list(e.get_points('xy'))
        #             x, y = zip(*points)
        #             ax.plot(x, y, 'r-')
        #         elif e.dxftype() == 'LINE':
        #             start_point = e.dxf.start
        #             end_point = e.dxf.end
        #             ax.plot([start_point[0], end_point[0]], [start_point[1], end_point[1]], 'b-')
        #         elif e.dxftype() == 'CIRCLE':
        #             center = e.dxf.center
        #             radius = e.dxf.radius
        #             circle = plt.Circle(center, radius, color='g', fill=False)
        #             ax.add_patch(circle)
        #         # elif e.dxftype() == 'SOLID':
        #         #     points = [(e.dxf.points[i], e.dxf.points[i + 1]) for i in range(0, 8, 2)]
        #         #     x, y = zip(*points)
        #         #     ax.add_patch(Polygon(points, closed=True, edgecolor='m', facecolor='none'))

    ax.set_aspect('equal', adjustable='box')
    plt.xlabel('X')
    plt.ylabel('Y')
    plt.title('DXF Display')
    plt.grid(True)
    plt.show()

if __name__ == "__main__":
    file_path = "files/Main board0.dxf"
    display_dxf(file_path)

效果：