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;
}