twaver html5 如何设置节点不可拖动

解决思路：

1、创建一个不可移动的图层  :  layer

2、设置不可拖动的节点node 的图层为 layer

见代码：

var box = new twaver.ElementBox();
var network = new twaver.vector.Network(box);
function init() {
  initNetwork();
  initLayer();
}
function initNetwork() {
  var view = network.getView();
  document.body.appendChild(view);
  network.adjustBounds({x: 0, y: 0, width: 1300, height: 600});
  twaver.Styles.setStyle('select.color', '#57ab9a');
  network.setEditInteractions();
}
function initLayer() {
  var layerBox = box.getLayerBox();
  var layer1 = new twaver.Layer('unmovable', 'unmovable layer'); // 创建一个不可移动的图层
  layerBox.add(layer1);
  createNode(layer1, 'circle', 300, 100, 200, 200, '#57ab9a');
}
function createNode(layer, shape, x, y, width, height, fillColor) {
  var node = new twaver.Node();
  node.setLayerId(layer.getId()); // 设置节点的图层，指向不可移动的图层
  node.setName('layer-' + layer.getId());
  node.setStyle('body.type', 'vector');
  node.setStyle('vector.fill.alpha', 0.7);
  node.setStyle('vector.shape', shape);
  node.setSize(width, height);
  node.setLocation(x, y);
  node.setStyle('vector.fill.color', fillColor);
  box.add(node); return node;
}