C3js 时间序列无法显示连续线

Question

我想使用 c3 来显示带有时间序列的设备信息。这是我的 json 数据。

  json: [
            {datetime: '2016-01-02 12:00:01.001', wifi: 1},
            {datetime: '2016-01-02 12:00:01.999', wifi: 0},
            {datetime: '2016-01-02 12:00:03.000', GPS: 0},
            {datetime: '2016-01-02 12:00:04.003', wifi: 1},
            {datetime: '2016-01-02 12:00:05.959', GPS: 1},
            {datetime: '2016-01-02 12:00:06.006', wifi: 0},
        ],

我发现它无法为每个 wifi/gps 显示实线。是bug还是有什么方法可以显示实线？

The line what I expected

var chart = c3.generate({
    data: {
        xFormat: '%Y-%M-%d %H:%M:%S.%L',
        json: [
            {datetime: '2016-01-02 12:00:01.001', wifi: 1},
            {datetime: '2016-01-02 12:00:01.999', wifi: 0},
            {datetime: '2016-01-02 12:00:03.000', GPS: 0},
            {datetime: '2016-01-02 12:00:04.003', wifi: 1},
            {datetime: '2016-01-02 12:00:05.959', GPS: 1},
            {datetime: '2016-01-02 12:00:06.006', wifi: 0},
        ],
        keys: {
            x: 'datetime',
            value: ['wifi','GPS'],
        },
        types: {
            wifi: 'line',
            GPS:'line',
        },
    },
    axis: {
        x: {
            type: 'timeseries',
                tick: {
                    format: '%Y-%m-%d %H:%M:%S'
            }
        },
    },
    zoom: {
        enabled: true
    },
});

Source Code

Answer 1

我从未使用过 c3，但这是我的猜测：您必须为所有日期时间指定 wifi 和 GPS 的值。

我只是在没有值的地方添加了 0。看看发生了什么，现在你有一个折线图：https://jsfiddle.net/gerardofurtado/oshujxux/

Answer 2

我发现这是一个老问题，解决方案是"connectNull: true"。

    var chart = c3.generate({
    data: {
        xFormat: '%Y-%M-%d %H:%M:%S.%L',
        json: [
            {datetime: '2016-01-02 12:00:01.001', wifi: 1},
            {datetime: '2016-01-02 12:00:01.999', wifi: 0},
            {datetime: '2016-01-02 12:00:04.003', wifi: 1},
            {datetime: '2016-01-02 12:00:06.006', wifi: 0},
            {datetime: '2016-01-02 12:00:03.000', GPS: 0},
            {datetime: '2016-01-02 12:00:05.959', GPS: 1},
        ],
        keys: {
            x: 'datetime',
            value: ['wifi','GPS'],
        },
        types: {
            wifi: 'step',
            GPS:'step',
        },
    },
    axis: {
        x: {
            type: 'timeseries',
                tick: {
                    format: '%Y-%m-%d %H:%M:%S'
            }
        },
    },
    zoom: {
        enabled: true
    },
line: {
    connectNull: true
}
});

SourceCode

C3js 时间序列无法显示连续线

C3js timeseries can't show continuous line

javascript

json

timeserieschart

d3.js

c3.js