Echarts在线免费图表

 
            option = {
    title: {
        text: 'Graph 简单示例'
    },
    tooltip: {},
    animationDurationUpdate: 1500,
    animationEasingUpdate: 'quinticInOut',
    series: [{
        type: 'graph',
        layout: 'none',
        symbolSize: 50,
        roam: true,
        label: {
            normal: {
                show: true,
                formatter: function (val) {
                    var a =val.name;
                    var b = [];
                    b = a.split(""); 
                    return b.join('\n');
                }
            }
        },
        data: [{
            name: '节点1',
            x: 300,
            y: 300
        }, {
            name: '节点2',
            x: 800,
            y: 300
        }, {
            name: '节点3',
            x: 550,
            y: 100
        }, {
            name: '节点4',
            x: 550,
            y: 500
        }],


    }]
};