three-dxf画加粗线

以下是使用three-dxf库绘制加粗线的示例：

const DXFLoader = require('three-dxf').DXFLoader;
const THREE = require('three');

// 创建场景
const scene = new THREE.Scene();

// 创建相机
const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.z = 5;

// 创建渲染器
const renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);

// 加载DXF文件
const loader = new DXFLoader();
loader.load('path/to/your/file.dxf', (dxf) => {
  // 创建材质
  const material = new THREE.LineBasicMaterial({ color: 0x0000ff, linewidth: 5 });

  // 遍历DXF中的实体
  dxf.entities.forEach((entity) => {
    if (entity.type === 'LINE') {
      // 创建几何体
      const geometry = new THREE.Geometry();
      geometry.vertices.push(
        new THREE.Vector3(entity.start.x, entity.start.y, 0),
        new THREE.Vector3(entity.end.x, entity.end.y, 0)
      );

      // 创建线条
      const line = new THREE.Line(geometry, material);
      scene.add(line);
    }
  });

  // 渲染场景
  renderer.render(scene, camera);
});

请注意，上述示例假设您已经安装了three-dxf和three.js库，并且已将DXF文件的路径替换为实际的文件路径。