Demo = {};
Demo.Nodes = BI.inherit(BI.Widget, {

    render: function (vessel) {
        return {
            type: "bi.vertical",
            items: [{
                type: "bi.label",
                height: 30,
                text: "十字形的节点"
            }, {
                type: "bi.plus_group_node",
                text: "十字形的节点"
            }, {
                type: "bi.label",
                height: 30,
                text: "三角形的节点"
            }, {
                type: "bi.triangle_group_node",
                text: "三角形的节点"
            }, {
                type: "bi.label",
                height: 30,
                text: "箭头节点"
            }, {
                type: "bi.arrow_group_node",
                text: "箭头节点"
            }]
        }
    }
});

BI.shortcut("demo.nodes", Demo.Nodes);
BI.createWidget({
  type: 'demo.nodes',
  element: "#wrapper",
});