highcharts zoomable 6个月线图

Question

我想要一个6个月的图表,默认显示月度视图,但可以缩放到当天.

今天我们的6个月图表:

xAxis: {
title: {
text: 'Temperature'
},
categories: ['Oct','Nov','Dec','Jan','Feb','Mar',]
series: [
{ name: 'my series',
visible: true,
data: [5,10,15,5,7,8,]},
{ name: 'another series',
visible: true,
data: [0,0,0,146,80,0,]},

这适用于每月.

为了获得每日数据,我可以将大约30*6个元素推入数据中.我也试过用:

pointStart: Date.UTC(2010, 11, 1),
pointInterval: 30 * 24 * 3600 * 1000 // one day

像这个例子:http://jsfiddle.net/7Mmee/9/

但问题不是每个月都有30天,图表底部也没有显示类别.

我确定有一种简单的方法可以解决这个问题.

谢谢乔尔

Answer 1

看起来好像你试图每月显示一个数据点.如果是这种情况,我建议一次分配每个数据点并更改日期格式化程序.

//Example 1: Each data point has a time, with a date formatter:
var chart = new Highcharts.Chart({
    chart: {
        renderTo: 'container'
    },
    xAxis: {
        type: 'datetime',
        dateTimeLabelFormats: { //custom date formats for different scales
            second: '%H:%M:%S',
            minute: '%H:%M',
            hour: '%H:%M',
            day: '%e. %b',
            week: '%e. %b',
            month: '%b', //month formatted as month only
            year: '%Y'
        }
    },

    series: [{
        data: [
            {x: Date.UTC(2010, 0, 1), y: 1}, //one data point for each month
            {x: Date.UTC(2010, 1, 1), y: 4},
            {x: Date.UTC(2010, 2, 1), y: 9},
            {x: Date.UTC(2010, 3, 1), y: 16},
            {x: Date.UTC(2010, 4, 1), y: 25},
            {x: Date.UTC(2010, 5, 1), y: 36}
        ]
    }]
});

但是,您似乎也希望缩小到"日期"级别.如果是这种情况,将所有数据点添加到系列中是有意义的,并使用highcharts的zoomType属性,可能与日期格式化程序结合使用.

//Example 2: Each data point represents a day, and we use the 'zoomType' feature:
var chart = new Highcharts.Chart({
    chart: {
        renderTo: 'container'
    },
    xAxis: {
        type: 'datetime',
        zoomType: 'x'
    },

    series: [{
        data: [
            {x: Date.UTC(2010, 0, 1), y: 1}, //one data point for each day
            {x: Date.UTC(2010, 0, 2), y: 1.1},
            {x: Date.UTC(2010, 0, 3), y: 1.4},
            {x: Date.UTC(2010, 0, 4), y: 1.8},
            {x: Date.UTC(2010, 0, 5), y: 2.5},
            {x: Date.UTC(2010, 0, 6), y: 3.8}
        ]
    }]
});