如何在类似于Navisworks中HUD的forge查看器中获取x，y，z轴？

// 创建自定义HUD组件
function createHUD() {
  const overlayScene = viewer.impl.createOverlayScene();
  const hudElement = document.createElement('div');
  hudElement.style.position = 'absolute';
  hudElement.style.top = '10px';
  hudElement.style.left = '10px';
  hudElement.style.color = 'white';
  hudElement.style.fontFamily = 'Arial';
  hudElement.style.fontSize = '14px';
  overlayScene.add(hudElement);

  // 监听鼠标移动事件
  viewer.addEventListener(Autodesk.Viewing.MOUSE_MOVE, (event) => {
    const screenPoint = {
      x: event.clientX,
      y: event.clientY
    };

    // 将屏幕坐标转换为视口坐标
    const viewportPoint = viewer.impl.clientToViewport(screenPoint);

    // 获取鼠标点击位置的3D坐标
    const hitTest = viewer.impl.hitTestViewport(viewportPoint.x, viewportPoint.y);
    if (hitTest) {
      const { x, y, z } = hitTest.point;

      // 显示x、y、z轴坐标
      hudElement.innerText = `x: ${x.toFixed(2)}, y: ${y.toFixed(2)}, z: ${z.toFixed(2)}`;
    }
  });
}

// 在Forge Viewer加载完成后调用createHUD函数
viewer.addEventListener(Autodesk.Viewing.GEOMETRY_LOADED_EVENT, createHUD);