如何在 HIghcharts 的面积图中实现异步向下钻取？
How to implement Asynchronous drilldown in area charts in HIghcharts?
我添加了以下代码以使用 highcharts.js 在面积图中实现异步向下钻取。但是向下钻取功能不起作用。该事件未被触发。我还通过向下钻取导出了 highchartsfactory。有人可以建议问题是什么吗？下面是我的代码：
export class HomePage {
chartOptions : any;
constructor(public navCtrl: NavController) {
this.chartOptions = {
chart: {
type: 'area',
//Asynchronous drilldown
events: {
drilldown: function (e) {
console.log(e);
if (!e.seriesOptions) {
var chart = this,
drilldowns = {
'USA': {
name: 'USA',
data: [1, 2, 3, 4, 1, 6, 7, 8],
},
},
series = drilldowns[e.point.name];
// Show the loading label
chart.showLoading('Simulating Ajax ...');
setTimeout(function () {
chart.hideLoading();
chart.addSeriesAsDrilldown(e.point, series);
}, 1000);
}
}
}
},
title: {
text: 'Operations'
},
xAxis: {
allowDecimals: false,
labels: {
formatter: function () {
return this.value; // clean, unformatted number for year
}
}
},
yAxis: {
title: {
text: 'Nuclear weapon states'
},
labels: {
formatter: function () {
return this.value / 1000 + 'k';
}
}
},
tooltip: {
pointFormat: '{series.name} had stockpiled <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',
// colorByPoint: true,
trackByArea: true,
data: [{
name: 'USA',
y: null,
drilldown: true
}, {
name: 'USA',
y: null,
drilldown: true
}, {
name: 'USA',
y: null,
drilldown: true
},
{ name: 'USA',
y: null,
drilldown: true
}, {
name: 'USA',
y: null,
drilldown: true
}, {
name: 'USA',
y: 6,
drilldown: true
}, {
name: 'USA',
y: 11,
drilldown: true
},{
name: 'USA',
y: 32,
drilldown: true
}, {
name: 'USA',
y: 110,
drilldown: true
}, {
name: 'USA',
y: 235,
drilldown: true
}, {
name: 'USA',
y: 369,
drilldown: true
}, {
name: 'USA',
y: 640,
drilldown: true
},{
name: 'USA',
y: 1005,
drilldown: true
}, {
name: 'USA',
y: 1436,
drilldown: true
}, {
name: 'USA',
y: 2063,
drilldown: true
}, {
name: 'USA',
y: 3057,
drilldown: true
},{
name: 'USA',
y: 4618,
drilldown: true
}, {
name: 'USA',
y: 6444,
drilldown: true
}, {
name: 'USA',
y: 9822,
drilldown: true
}, {
name: 'USA',
y: 15468,
drilldown: true
},{
name: 'USA',
y: 20434,
drilldown: true
}, {
name: 'USA',
y: 24126,
drilldown: true
}, {
name: 'USA',
y: 27387,
drilldown: true
}, {
name: 'USA',
y: 29459,
drilldown: true
}, {
name: 'USA',
y: 27387,
drilldown: true
}, {
name: 'USA',
y: 29459,
drilldown: true
},{
name: 'USA',
y: 32040,
drilldown: true
}, {
name: 'USA',
y: 31233,
drilldown: true
},{
name: 'USA',
y: 29224,
drilldown: true
}, {
name: 'USA',
y: 27342,
drilldown: true
}, {
name: 'USA',
y: 26662,
drilldown: true
}, {
name: 'USA',
y: 26956,
drilldown: true
},{
name: 'USA',
y: 27912,
drilldown: true
}, {
name: 'USA',
y: 28999,
drilldown: true
}, {
name: 'USA',
y: 28965,
drilldown: true
}, {
name: 'USA',
y: 27826,
drilldown: true
},{
name: 'USA',
y: 25579,
drilldown: true
}, {
name: 'USA',
y: 25722,
drilldown: true
}, {
name: 'USA',
y: 24826,
drilldown: true
},{
name: 'USA',
y: 24605,
drilldown: true
}, {
name: 'USA',
y: 24304,
drilldown: true
}, {
name: 'USA',
y: 23464,
drilldown: true
}, {
name: 'USA',
y: 23708,
drilldown: true
},{
name: 'USA',
y: 24099,
drilldown: true
}, {
name: 'USA',
y: 24357,
drilldown: true
}, {
name: 'USA',
y: 24237,
drilldown: true
}, {
name: 'USA',
y: 24401,
drilldown: true
},{
name: 'USA',
y: 24344,
drilldown: true
}, {
name: 'USA',
y: 23586,
drilldown: true
}, {
name: 'USA',
y: 22380,
drilldown: true
}, {
name: 'USA',
y: 21004,
drilldown: true
},{
name: 'USA',
y: 17287,
drilldown: true
}, {
name: 'USA',
y: 14747,
drilldown: true
}, {
name: 'USA',
y: 13076,
drilldown: true
}, {
name: 'USA',
y: 12555,
drilldown: true
},{
name: 'USA',
y: 12144,
drilldown: true
}, {
name: 'USA',
y: 11009,
drilldown: true
}, {
name: 'USA',
y: 10950,
drilldown: true
}, {
name: 'USA',
y: 10871,
drilldown: true
},{
name: 'USA',
y: 10824,
drilldown: true
}, {
name: 'USA',
y: 10577,
drilldown: true
}, {
name: 'USA',
y: 10527,
drilldown: true
}, {
name: 'USA',
y: 10475,
drilldown: true
},{
name: 'USA',
y: 10421,
drilldown: true
}, {
name: 'USA',
y: 10358,
drilldown: true
}, {
name: 'USA',
y: 10295,
drilldown: true
}, {
name: 'USA',
y: 10104,
drilldown: true
},{
name: 'USA',
y: 9914,
drilldown: true
}, {
name: 'USA',
y: 9620,
drilldown: true
}, {
name: 'USA',
y: 9326,
drilldown: true
}, {
name: 'USA',
y: 5113,
drilldown: true
},{
name: 'USA',
y: 5113,
drilldown: true
}, {
name: 'USA',
y: 4954,
drilldown: true
}, {
name: 'USA',
y: 4804,
drilldown: true
}, {
name: 'USA',
y: 4761,
drilldown: true
}, {
name: 'USA',
y: 4717,
drilldown: true
},{
name: 'USA',
y: 4368,
drilldown: true
}, {
name: 'USA',
y: 4018,
drilldown: true
}]
}, {
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, 15537, 14162, 12787,
12600, 11400, 5500, 4512, 4502, 4502, 4500, 4500
]
}],
drilldown: {
series: []
}
}
}
}
我根据您的代码制作了示例，一切正常。我怀疑您没有导入 drilldown.js 模块，这就是您的事件没有触发的原因。您需要像这样导入它：
import drilldown from 'highcharts/modules/drilldown'
drilldown(Highcharts)
那么，应该可以了。
我添加了以下代码以使用 highcharts.js 在面积图中实现异步向下钻取。但是向下钻取功能不起作用。该事件未被触发。我还通过向下钻取导出了 highchartsfactory。有人可以建议问题是什么吗？下面是我的代码：
export class HomePage {
chartOptions : any;
constructor(public navCtrl: NavController) {
this.chartOptions = {
chart: {
type: 'area',
//Asynchronous drilldown
events: {
drilldown: function (e) {
console.log(e);
if (!e.seriesOptions) {
var chart = this,
drilldowns = {
'USA': {
name: 'USA',
data: [1, 2, 3, 4, 1, 6, 7, 8],
},
},
series = drilldowns[e.point.name];
// Show the loading label
chart.showLoading('Simulating Ajax ...');
setTimeout(function () {
chart.hideLoading();
chart.addSeriesAsDrilldown(e.point, series);
}, 1000);
}
}
}
},
title: {
text: 'Operations'
},
xAxis: {
allowDecimals: false,
labels: {
formatter: function () {
return this.value; // clean, unformatted number for year
}
}
},
yAxis: {
title: {
text: 'Nuclear weapon states'
},
labels: {
formatter: function () {
return this.value / 1000 + 'k';
}
}
},
tooltip: {
pointFormat: '{series.name} had stockpiled <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',
// colorByPoint: true,
trackByArea: true,
data: [{
name: 'USA',
y: null,
drilldown: true
}, {
name: 'USA',
y: null,
drilldown: true
}, {
name: 'USA',
y: null,
drilldown: true
},
{ name: 'USA',
y: null,
drilldown: true
}, {
name: 'USA',
y: null,
drilldown: true
}, {
name: 'USA',
y: 6,
drilldown: true
}, {
name: 'USA',
y: 11,
drilldown: true
},{
name: 'USA',
y: 32,
drilldown: true
}, {
name: 'USA',
y: 110,
drilldown: true
}, {
name: 'USA',
y: 235,
drilldown: true
}, {
name: 'USA',
y: 369,
drilldown: true
}, {
name: 'USA',
y: 640,
drilldown: true
},{
name: 'USA',
y: 1005,
drilldown: true
}, {
name: 'USA',
y: 1436,
drilldown: true
}, {
name: 'USA',
y: 2063,
drilldown: true
}, {
name: 'USA',
y: 3057,
drilldown: true
},{
name: 'USA',
y: 4618,
drilldown: true
}, {
name: 'USA',
y: 6444,
drilldown: true
}, {
name: 'USA',
y: 9822,
drilldown: true
}, {
name: 'USA',
y: 15468,
drilldown: true
},{
name: 'USA',
y: 20434,
drilldown: true
}, {
name: 'USA',
y: 24126,
drilldown: true
}, {
name: 'USA',
y: 27387,
drilldown: true
}, {
name: 'USA',
y: 29459,
drilldown: true
}, {
name: 'USA',
y: 27387,
drilldown: true
}, {
name: 'USA',
y: 29459,
drilldown: true
},{
name: 'USA',
y: 32040,
drilldown: true
}, {
name: 'USA',
y: 31233,
drilldown: true
},{
name: 'USA',
y: 29224,
drilldown: true
}, {
name: 'USA',
y: 27342,
drilldown: true
}, {
name: 'USA',
y: 26662,
drilldown: true
}, {
name: 'USA',
y: 26956,
drilldown: true
},{
name: 'USA',
y: 27912,
drilldown: true
}, {
name: 'USA',
y: 28999,
drilldown: true
}, {
name: 'USA',
y: 28965,
drilldown: true
}, {
name: 'USA',
y: 27826,
drilldown: true
},{
name: 'USA',
y: 25579,
drilldown: true
}, {
name: 'USA',
y: 25722,
drilldown: true
}, {
name: 'USA',
y: 24826,
drilldown: true
},{
name: 'USA',
y: 24605,
drilldown: true
}, {
name: 'USA',
y: 24304,
drilldown: true
}, {
name: 'USA',
y: 23464,
drilldown: true
}, {
name: 'USA',
y: 23708,
drilldown: true
},{
name: 'USA',
y: 24099,
drilldown: true
}, {
name: 'USA',
y: 24357,
drilldown: true
}, {
name: 'USA',
y: 24237,
drilldown: true
}, {
name: 'USA',
y: 24401,
drilldown: true
},{
name: 'USA',
y: 24344,
drilldown: true
}, {
name: 'USA',
y: 23586,
drilldown: true
}, {
name: 'USA',
y: 22380,
drilldown: true
}, {
name: 'USA',
y: 21004,
drilldown: true
},{
name: 'USA',
y: 17287,
drilldown: true
}, {
name: 'USA',
y: 14747,
drilldown: true
}, {
name: 'USA',
y: 13076,
drilldown: true
}, {
name: 'USA',
y: 12555,
drilldown: true
},{
name: 'USA',
y: 12144,
drilldown: true
}, {
name: 'USA',
y: 11009,
drilldown: true
}, {
name: 'USA',
y: 10950,
drilldown: true
}, {
name: 'USA',
y: 10871,
drilldown: true
},{
name: 'USA',
y: 10824,
drilldown: true
}, {
name: 'USA',
y: 10577,
drilldown: true
}, {
name: 'USA',
y: 10527,
drilldown: true
}, {
name: 'USA',
y: 10475,
drilldown: true
},{
name: 'USA',
y: 10421,
drilldown: true
}, {
name: 'USA',
y: 10358,
drilldown: true
}, {
name: 'USA',
y: 10295,
drilldown: true
}, {
name: 'USA',
y: 10104,
drilldown: true
},{
name: 'USA',
y: 9914,
drilldown: true
}, {
name: 'USA',
y: 9620,
drilldown: true
}, {
name: 'USA',
y: 9326,
drilldown: true
}, {
name: 'USA',
y: 5113,
drilldown: true
},{
name: 'USA',
y: 5113,
drilldown: true
}, {
name: 'USA',
y: 4954,
drilldown: true
}, {
name: 'USA',
y: 4804,
drilldown: true
}, {
name: 'USA',
y: 4761,
drilldown: true
}, {
name: 'USA',
y: 4717,
drilldown: true
},{
name: 'USA',
y: 4368,
drilldown: true
}, {
name: 'USA',
y: 4018,
drilldown: true
}]
}, {
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, 15537, 14162, 12787,
12600, 11400, 5500, 4512, 4502, 4502, 4500, 4500
]
}],
drilldown: {
series: []
}
}
}
}
我根据您的代码制作了示例，一切正常。我怀疑您没有导入 drilldown.js 模块，这就是您的事件没有触发的原因。您需要像这样导入它：
import drilldown from 'highcharts/modules/drilldown'
drilldown(Highcharts)
那么，应该可以了。