小编Sat*_*ers的帖子

我试图用 Three.js 表示一个图表，其中节点对象可以通过单击并拖动来移动。我当前的问题是，从一个节点到另一个节点创建为 THREE.Line 的边不会随节点移动（边应该旋转/改变长度）。

到目前为止我的代码：

var colour = 0x568c4b, geometry = new THREE.BoxGeometry(size, size, size),
    material = new THREE.MeshLambertMaterial({ color: colour }),
    position0 = new THREE.Vector3(-100, -60, 0),
    position1 = new THREE.Vector3(150, 50, 0);

node0 = new THREE.Mesh(geometry, material);
node0.position = position0;
scene.add(node0);
objects.push(node0);

node1 = new THREE.Mesh(geometry, material);
node1.position = position1;
scene.add(node1);
objects.push(node1);

var edge_def = new THREE.Geometry();

/*
 * How to refresh this so that 'edge0' is always connected to 'node0' and 'node1'?
 */
edge_def.vertices.push(node0.position);
edge_def.vertices.push(node1.position);
/* …