如何在高位图表中设置字段名

how to set fieldnames in high chart?

本文关键字：设置 字段 位图 高位图      更新时间：2023-09-26

我是高线图的新手。我以前用过剑道UI图表。在剑道中，我们可以告诉我们想要在图表中绘制的字段名称如下：

series: [{
    name: "steps",
    field: "steps",
    categoryField: "createddate"
}]

我们可以告诉数据来源如下：

dataSource: dSource

其中dSource是AJAX URL。

我在教程里找不到这样的东西。我的JSON文件如下：

[{"ActivitySummaryKey":174000,
    "id":"kkse2",
    "activityscore":-,
    "activitycalories":456,
    "caloriesBMR":1017,
    "caloriesOut":1412,
    "distances":1.57828236,
    "elevation":0,
    "fairlyActiveminutes":34,
    "floors":0,
    "lightlyActiveMinutes":28,
    "marginalCalories":334,
    "sedentaryMinutes":827,
    "steps":5077,
    "veryActiveMinutes":26,
    "trackersteps":0,
    "trackerdistances":0,
    "trackerfloors":0,
    "trackerelevation":0,
    "trackerActivityCalories":0,
    "trackerCaloriesOut":0,
    "trackerMinutesSedentary":0,
    "trackerminutesLightlyActive":0,
    "trackerminutesFairlyActive":0,
    "trackerminutesVeryActive":0,
    "createddate":"9/17/2014 12:00:00 AM",
    "distanceunit":"Miles"
}]

我想在y轴上绘制步骤，在x轴上创建日期。

如何处理它？

您应该使用高级图表数据格式-->series.data.

为了使点可见，必须使用JSON中的值设置x和y（steps和createddate）。此外，您还需要解析日期（如date.UTC（））。

因此，Highcharts需要的结果是：

[{
    "ActivitySummaryKey":174000,
    "id":"kkse2",
    "activityscore":-,
    "activitycalories":456,
    "caloriesBMR":1017,
    "caloriesOut":1412,
    "distances":1.57828236,
    "elevation":0,
    "fairlyActiveminutes":34,
    "floors":0,
    "lightlyActiveMinutes":28,
    "marginalCalories":334,
    "sedentaryMinutes":827,
    "steps":5077,
    "veryActiveMinutes":26,
    "trackersteps":0,
    "trackerdistances":0,
    "trackerfloors":0,
    "trackerelevation":0,
    "trackerActivityCalories":0,
    "trackerCaloriesOut":0,
    "trackerMinutesSedentary":0,
    "trackerminutesLightlyActive":0,
    "trackerminutesFairlyActive":0,
    "trackerminutesVeryActive":0,
    "createddate":"9/17/2014 12:00:00 AM",
    "distanceunit":"Miles",
    "x": 1410904800000,      // timestamp in ms for Highcharts, extracted from "createdate"
    "y": 5077                // y-value for Highcharts
}]
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