qunee 缩略图

<!DOCTYPE html>
<html>
<head>
    <title>Hello Qunee for HTML5</title>
    <meta charset="utf-8">
</head>
<body>
<div style="height: 500px;" id="canvas"></div>
<script src="http://demo.qunee.com/js/common/qunee-min.js"></script>
<script type="text/javascript" src="./qunee/jquery.min.js"></script> // 自己找这个js文件
<!--<script src="http://demo.qunee.com/js/common/Overview.js"></script>-->
<script src="http://demo.qunee.com/js/common/Overview.js"></script>
<script>
    var graph = new Q.Graph(canvas);
    var hello = graph.createNode("Hello", -100, -50);
    hello.image = Q.Graphs.server;
    var qunee = graph.createNode("Qunee", 100, 50);
    var edge = graph.createEdge("Hello
Qunee", hello, qunee);

    edge.setStyle(Q.Styles.LABEL_OFFSET_Y, -10);
    edge.setStyle(Q.Styles.LABEL_POSITION, Q.Position.CENTER_TOP);
    edge.setStyle(Q.Styles.LABEL_ANCHOR_POSITION, Q.Position.CENTER_BOTTOM);
    edge.setStyle(Q.Styles.LABEL_BORDER, 1);
    edge.setStyle(Q.Styles.LABEL_POINTER, true);
    edge.setStyle(Q.Styles.LABEL_PADDING, new Q.Insets(2, 5));
    edge.setStyle(Q.Styles.LABEL_BACKGROUND_GRADIENT, Q.Gradient.LINEAR_GRADIENT_VERTICAL);
    // 创建缩略图的div
    var overviewDiv = document.createElement('div');
    overviewDiv.style.width = '200px';
    overviewDiv.style.height = '200px';
    overviewDiv.style.position = 'absolute';
    overviewDiv.style.top = '10px';
    overviewDiv.style.right = '10px';
    // overviewDiv.style.backgroundColor = 'red';
    // 将创建好的div添加到graph里面
    graph.html.appendChild(overviewDiv);
    // 通过Overview方法生成缩略图
    var overview = new Q.Overview(overviewDiv, graph);

</script>
</body>
</html>
如果不生效，重新加载js。