连线超出范围echarts sankey配置项内容和展示

数据值有大有小的时候 值较小的连线会超出范围

      option = {
    series: {
        type: 'sankey',
        layout: 'none',
        data: [{
            name: "现金余额"
        }, {
            name: "卡包-充值"
        }, {
            name: "信用卡"
        }, {
            name: "其他"
        }, {
            name: "网关/网银支付"
        }, {
            name: "线上发行"
        }, {
            name: "卡包"
        }, {
            name: "手机充值"
        }, {
            name: "线上商户"
        }, {
            name: "借记卡"
        }, {
            name: "生活缴费"
        }, {
            name: "线下商户"
        }, {
            name: "OK生活"
        }],
        links: [{
                source: "现金余额",
                target: "卡包-充值",
                value: 18740
            },
            {
                source: "信用卡",
                target: "其他",
                value: 0
            },
            {
                source: "网关/网银支付",
                target: "线上发行",
                value: 7200
            },
            {
                source: "网关/网银支付",
                target: "卡包-充值",
                value: 34
            },
            {
                source: "卡包",
                target: "手机充值",
                value: 3888594
            },
            {
                source: "卡包",
                target: "线上商户",
                value: 1689537
            },
            {
                source: "现金余额",
                target: "手机充值",
                value: 400
            },
            {
                source: "信用卡",
                target: "线上商户",
                value: 9168
            },
            {
                source: "现金余额",
                target: "线上发行",
                value: 400
            },
            {
                source: "借记卡",
                target: "卡包-充值",
                value: 48015
            },
            {
                source: "借记卡",
                target: "线上发行",
                value: 45900
            },
            {
                source: "借记卡",
                target: "生活缴费",
                value: 401
            },
            {
                source: "现金余额",
                target: "线上商户",
                value: 95
            },
            {
                source: "借记卡",
                target: "线上商户",
                value: 512
            },
            {
                source: "信用卡",
                target: "手机充值",
                value: 2046
            },
            {
                source: "信用卡",
                target: "线下商户",
                value: 23
            },
            {
                source: "卡包",
                target: "生活缴费",
                value: 2125996
            },
            {
                source: "卡包",
                target: "OK生活",
                value: 209287
            },
            {
                source: "卡包",
                target: "其他",
                value: 7
            },
            {
                source: "信用卡",
                target: "生活缴费",
                value: 520
            },
            {
                source: "网关/网银支付",
                target: "手机充值",
                value: 499
            },
            {
                source: "借记卡",
                target: "手机充值",
                value: 279
            },
            {
                source: "卡包",
                target: "线下商户",
                value: 3143295
            },
            {
                source: "现金余额",
                target: "生活缴费",
                value: 929
            },
            {
                source: "借记卡",
                target: "其他",
                value: 0
            }
        ]
    }
};