mxGraph绘制流程图

代码如下：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"

"http://www.w3.org/TR/html4/loose.dtd">

<html lang="zh_CN">

<head>

    <meta http-equiv="content-type" content="text/html; charset=utf-8">

    <title></title>

    <script src="../../js/lib/jquery.min.js" type="text/javascript" language="JavaScript" charset="utf-8"></script>

    <script type="text/javascript">

        mxBasePath = '../../js/lib/mxgraph';

    </script>

    <script type="text/javascript" src="../../js/lib/mxgraph/js/mxClient.js"></script>

    <script type="text/javascript">

    var xml = null;

    var graph = null;

    function createGraph(container)

    {

        var graph = new mxGraph(container);

        graph.setTooltips(true);

        graph.setEnabled(true);

        // Disables folding

        graph.isCellFoldable = function(cell, collapse)

        {

            return false;

        };

        // Creates the stylesheet for the process display

        var style = graph.getStylesheet().getDefaultVertexStyle();

        style[mxConstants.STYLE_FONTSIZE] = '12';

        style[mxConstants.STYLE_STROKECOLOR] = 'black';

        style[mxConstants.STYLE_FONTCOLOR] = 'black';

        style[mxConstants.STYLE_FILLCOLOR] = 'white';

        //style[mxConstants.STYLE_GRADIENTCOLOR] = '#F0F0F0';

        style[mxConstants.STYLE_GRADIENT_DIRECTION] = mxConstants.DIRECTION_EAST;

        style[mxConstants.STYLE_ROUNDED] = true;

        style[mxConstants.STYLE_SHADOW] = true;

        style[mxConstants.STYLE_FONTSTYLE] = 1;

        style[mxConstants.STYLE_WHITE_SPACE] = 'wrap';

        style = graph.getStylesheet().getDefaultEdgeStyle();

        style[mxConstants.STYLE_EDGE] = mxEdgeStyle.ElbowConnector;

        style[mxConstants.STYLE_STROKECOLOR] = 'black';

        style[mxConstants.STYLE_ROUNDED] = true;

        return graph;

    };

    //加载数据

    function loadData() {

         location=location;//刷新页面

    }

    $(function () {

        var pid = $('#name').val();

         $.ajax({

                type:"POST",

                async:false,

                url:"../../index.php/?action=ticket&method=getProcess",

                data:{

                     pid:pid

                },

                success:function(data){

                    $('#txt').val(data);

                }

            });

        xml = $('#txt').val();

        //绘图

        var container = document.getElementById('graphContainer');

        graph = createGraph(container);

        var doc = mxUtils.parseXml(xml);

        var codec = new mxCodec(doc);

        codec.decode(doc.documentElement, graph.getModel());

        //定时刷新页面

        setTimeout(function () {

            setInterval(loadData, 10000);

        }, 1000);

    });

    </script>

</head>

<!-- Page passes the container and control to the main function -->

<body>

    <!-- Acts as a container for the graph -->

    <div id="graphContainer" style="overflow:hidden;position:relative;cursor:default;">

    </div>

    <input type='hidden' id='name' value=" <?php echo $_REQUEST['uid']; ?> "></input>

    <input type='hidden' type='text' id='txt'></input>

    <br>

</body>

</html>