javascript - Highcharts area: x-axis in hours but showing multiple points in each hour -

i'm using this example highcharts need adjust follows:

1. having x-axis displaying current 24 hours starting current hour (i able draw 24 hrs not current hour)

    xaxis: {             type: 'datetime',             tickinterval: 3600 * 1000,             min: date.utc(2013,4,22),             max: date.utc(2013,4,23),         }, 

2. displaying multiple points between 2 consecutive hours

any ideas?

here full code of jsfiddle:

$(function () { $('#container').highcharts({     chart: {         type: 'area'     },     title: {         text: 'us , ussr nuclear stockpiles'     },     subtitle: {         text: 'source: <a href="http://thebulletin.metapress.com/content/c4120650912x74k7/fulltext.pdf">' +             'thebulletin.metapress.com</a>'     },     xaxis: {         allowdecimals: false,         labels: {             formatter: function () {                 return this.value; // clean, unformatted number year             }         }     },     yaxis: {         title: {             text: 'nuclear weapon states'         },         labels: {             formatter: function () {                 return this.value / 1000 + 'k';             }         }     },     tooltip: {         pointformat: '{series.name} produced <b>{point.y:,.0f}</b><br/>warheads in {point.x}'     },     plotoptions: {         area: {             pointstart: 1940,             marker: {                 enabled: false,                 symbol: 'circle',                 radius: 2,                 states: {                     hover: {                         enabled: true                     }                 }             }         }     },     series: [{         name: 'usa',         data: [null, null, null, null, null, 6, 11, 32, 110, 235, 369, 640,             1005, 1436, 2063, 3057, 4618, 6444, 9822, 15468, 20434, 24126,             27387, 29459, 31056, 31982, 32040, 31233, 29224, 27342, 26662,             26956, 27912, 28999, 28965, 27826, 25579, 25722, 24826, 24605,             24304, 23464, 23708, 24099, 24357, 24237, 24401, 24344, 23586,             22380, 21004, 17287, 14747, 13076, 12555, 12144, 11009, 10950,             10871, 10824, 10577, 10527, 10475, 10421, 10358, 10295, 10104]     }, {         name: 'ussr/russia',         data: [null, null, null, null, null, null, null, null, null, null,             5, 25, 50, 120, 150, 200, 426, 660, 869, 1060, 1605, 2471, 3322,             4238, 5221, 6129, 7089, 8339, 9399, 10538, 11643, 13092, 14478,             15915, 17385, 19055, 21205, 23044, 25393, 27935, 30062, 32049,             33952, 35804, 37431, 39197, 45000, 43000, 41000, 39000, 37000,             35000, 33000, 31000, 29000, 27000, 25000, 24000, 23000, 22000,             21000, 20000, 19000, 18000, 18000, 17000, 16000]     }] }); 

});

you can javascript , change highcharts global options. here code current time:

var = new date(); var utc_timestamp = now.gettime(); var starttime = utc_timestamp; var endtime = utc_timestamp + 86400000; // add 24 hours (in millis).  console.log(starttime); console.log(endtime); 

this return utc time. chart use user's local time set useutc parameter to:

highcharts.setoptions({     global: {         useutc: false     } }); 

so xaxis looks like:

xaxis: {   type: 'datetime',   tickinterval: 3600 * 1000,   min: starttime,   max: endtime }, 

here functional basic demo. note have change plotoptions.series.pointstart , .pointinterval. , note series have more 24 points.