如何使用ionic 3和angular来实现高图中的面积图的向下钻取？有人可以帮忙吗？谷歌上没有与此相关的东西。高级图表库目前仅支持对柱状图，饼形图和条形图的向下钻取。您还能介绍一下如何在面积图中实现异步向下钻取吗？
有人对此有任何想法吗？会很有帮助。
下面是我的同步钻取代码。向下钻取没有发生。您能指出代码有什么问题吗？
chartOptions : any;
// reorder: boolean = false;
// @ViewChild('select') select: any;
constructor(public navCtrl: NavController) {
// this.menu.enable(true, 'app-menu');
this.chartOptions = {
chart: {
type: 'area',
},
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',
trackByArea: true,
data: [{
y: null,
drilldown: 'driller'
}, {
y: null,
drilldown: 'driller'
}, {
y: null,
drilldown: 'driller'
},
{ y: null,
drilldown: 'driller'
}, {
y: null,
drilldown: 'driller'
}, {
y: 6,
drilldown: 'driller'
}, {
y: 11,
drilldown: 'driller'
},{
y: 32,
drilldown: 'driller'
}, {
y: 110,
drilldown: 'driller'
}, {
y: 235,
drilldown: 'driller'
}, {
y: 369,
drilldown: 'driller'
}, {
y: 640,
drilldown: 'driller'
},{
y: 1005,
drilldown: 'driller'
}, {
y: 1436,
drilldown: 'driller'
}, {
y: 2063,
drilldown: 'driller'
}, {
y: 3057,
drilldown: 'driller'
},{
y: 4618,
drilldown: 'driller'
}, {
y: 6444,
drilldown: 'driller'
}, {
y: 9822,
drilldown: 'driller'
}, {
y: 15468,
drilldown: 'driller'
},{
y: 20434,
drilldown: 'driller'
}, {
y: 24126,
drilldown: 'driller'
}, {
y: 27387,
drilldown: 'driller'
}, {
y: 29459,
drilldown: 'driller'
}, {
y: 27387,
drilldown: 'driller'
}, {
y: 29459,
drilldown: 'driller'
},{
y: 32040,
drilldown: 'driller'
}, {
y: 31233,
drilldown: 'driller'
},{
y: 29224,
drilldown: 'driller'
}, {
y: 27342,
drilldown: 'driller'
}, {
y: 26662,
drilldown: 'driller'
}, {
y: 26956,
drilldown: 'driller'
},{
y: 27912,
drilldown: 'driller'
}, {
y: 28999,
drilldown: 'driller'
}, {
y: 28965,
drilldown: 'driller'
}, {
y: 27826,
drilldown: 'driller'
},{
y: 25579,
drilldown: 'driller'
}, {
y: 25722,
drilldown: 'driller'
}, {
y: 24826,
drilldown: 'driller'
},{
y: 24605,
drilldown: 'driller'
}, {
y: 24304,
drilldown: 'driller'
}, {
y: 23464,
drilldown: 'driller'
}, {
y: 23708,
drilldown: 'driller'
},{
y: 24099,
drilldown: 'driller'
}, {
y: 24357,
drilldown: 'driller'
}, {
y: 24237,
drilldown: 'driller'
}, {
y: 24401,
drilldown: 'driller'
},{
y: 24344,
drilldown: 'driller'
}, {
y: 23586,
drilldown: 'driller'
}, {
y: 22380,
drilldown: 'driller'
}, {
y: 21004,
drilldown: 'driller'
},{
y: 17287,
drilldown: 'driller'
}, {
y: 14747,
drilldown: 'driller'
}, {
y: 13076,
drilldown: 'driller'
}, {
y: 12555,
drilldown: 'driller'
},{
y: 12144,
drilldown: 'driller'
}, {
y: 11009,
drilldown: 'driller'
}, {
y: 10950,
drilldown: 'driller'
}, {
y: 10871,
drilldown: 'driller'
},{
y: 10824,
drilldown: 'driller'
}, {
y: 10577,
drilldown: 'driller'
}, {
y: 10527,
drilldown: 'driller'
}, {
y: 10475,
drilldown: 'driller'
},{
y: 10421,
drilldown: 'driller'
}, {
y: 10358,
drilldown: 'driller'
}, {
y: 10295,
drilldown: 'driller'
}, {
y: 10104,
drilldown: 'driller'
},{
y: 9914,
drilldown: 'driller'
}, {
y: 9620,
drilldown: 'driller'
}, {
y: 9326,
drilldown: 'driller'
}, {
y: 5113,
drilldown: 'driller'
},{
y: 5113,
drilldown: 'driller'
}, {
y: 4954,
drilldown: 'driller'
}, {
y: 4804,
drilldown: 'driller'
}, {
y: 4761,
drilldown: 'driller'
}, {
y: 4717,
drilldown: 'driller'
},{
y: 4368,
drilldown: 'driller'
}, {
y: 4018,
drilldown: 'driller'
}]
}, {
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: [{
name: 'Driller series',
data: [1, 2, 3, 4, 1, 6, 7, 8],
id: 'driller'
}]
}
}
}
}
HTML code:
<ion-content>
<chart [options] = "chartOptions" style="display: block" type = "chart"> </chart>
</ion-content>
答案 0 :(得分：0)
可以通过以下方式对面积图进行下钻：
设置drilldown for each point，然后启用trackByArea（我们启用了此功能，以便我们可以单击系列中间的内容，但仍会被向下钻取）：
series: [{
name: 'Series 1',
trackByArea: true,
data: [{y: 1, drilldown: 'drilldownseries'},
{y: 2, drilldown: 'drilldownseries'},
...
]
}]
然后添加drilldown series：
drilldown: {
series: [{
name: 'Driller series',
data: [1, 2, 3, ...],
id: 'drilldownseries'
}]
}
请确保包括drilldown.js，如果没有该模块，则无法在高级图表中进行细化。
工作中的JSFiddle示例： http://jsfiddle.net/ewolden/uaLmg51k/