Geek asks and answers

Selection interval

I cannot figure out how to set my tick interval correctly.
You must have an hourly mark on the X axis.
Data is based on minutes.

Javascript:

$(function () {
    var chart;
    $(document).ready(function() {
        chart = new Highcharts.Chart({
            chart: {
                renderTo: 'container',
                type: 'spline'
            },
            title: {
                text: 'Temperature Today'
            },
            xAxis: {
                type: "datetime",
                categories: time,
                dateTimeLabelFormats: {
                    day: '%h'
                },
                minTickInterval: 24 * 36000000 * 1000,
            },
            yAxis: {
                title: {
                    text: 'Temperature'
                },
                minorGridLineWidth: 0,
                gridLineWidth: 0,
                alternateGridColor: null
            },
            tooltip: {
                formatter: function() {
                        return ''+
                        Highcharts.dateFormat('%e. %b %Y, %H:00', this.x) +': '+ this.y;
                }
            },
            plotOptions: {
                spline: {
                    lineWidth: 4,
                    states: {
                        hover: {
                            lineWidth: 5
                        }
                    },
                    marker: {
                        enabled: false,
                        states: {
                            hover: {
                                enabled: true,
                                symbol: 'circle',
                                radius: 5,
                                lineWidth: 1
                            }
                        }
                    },
                }
            },
            series: [{
                name: 'Asen',
                data: temp
            }]
            ,
            navigation: {
                menuItemStyle: {
                    fontSize: '6px'
                }
            }
        });
    });

});

Data Arrays:

temp = [-4.39,-4.39,-4.33,-4.33,-4.33,-4.33,-4.33]
time = [1359910725000,1359910786000,1359910848000,1359910908000,1359910968000,1359911028000,1359911089000,1359911150000]
+5
source share
2 answers

First of all, remove the "category" property on xAxis, it does not matter on the datetime axis. Note that the DateTime axis is based on milliseconds, therefore the interval of one hour is expressed as 3600 * 1000. See API Highcharts, tickInterval

use this configuration for xAxis.

xAxis: {
        type: "datetime",    
        dateTimeLabelFormats: {
            day: '%H'
        },
        tickInterval: 3600 * 1000
},

See here a working demo on JS Bin .

+14
source

You should use tickInterval with value: 3600 * 1000

+3
source

More articles:


All Articles