Javascript (Amcharts.js)创建饼图中的饼图
我对javascript比较陌生。最近我的任务是创建一个仪表板,因此我开始使用amcharts.js进行可视化 因此,我想寻求指导,以便创建饼图的饼图(基本上是向这个示例添加另一层,如amcharts提供的) 我自己也尝试了很长一段时间,但如图所示,没有成功Javascript (Amcharts.js)创建饼图中的饼图,javascript,amcharts,amcharts4,Javascript,Amcharts,Amcharts4,我对javascript比较陌生。最近我的任务是创建一个仪表板,因此我开始使用amcharts.js进行可视化 因此,我想寻求指导,以便创建饼图的饼图(基本上是向这个示例添加另一层,如amcharts提供的) 我自己也尝试了很长一段时间,但如图所示,没有成功 //主题开始 am4core.useTheme(am4themes_dataviz); am4core.useTheme(am4themes_动画); //主题结束 var container=am4core.create(“chartdi
//主题开始
am4core.useTheme(am4themes_dataviz);
am4core.useTheme(am4themes_动画);
//主题结束
var container=am4core.create(“chartdiv”,am4core.container);
容器宽度=AM4芯百分比(100);
容器高度=AM4核心百分比(100);
container.layout=“水平”;
var chart=container.createChild(am4charts.PieChart);
//添加数据
chart.data=[{
“国家”:“立陶宛”,
“升”:500,
“子数据”:[{name:“A”,值:200},
{名称:“B”,值:150},
{名称:“C”,值:100},
{名称:“D”,值:50,
子数据:[{name:“D2”,值:35,
名称:“D3”,值:15}]
}]
}, {
“国家”:“捷克共和国”,
“升”:300
}, {
“国家”:“爱尔兰”,
“升”:200
}, {
“国家”:“德国”,
“升”:150
}, {
“国家”:“澳大利亚”,
“升”:140
}, {
“国家”:“奥地利”,
“升”:120
}];
//添加和配置系列
var piesteries=chart.series.push(新的am4charts.piesteries());
pieSeries.dataFields.value=“升”;
pieSeries.dataFields.category=“国家”;
pieSeries.slices.template.states.getKey(“活动”).properties.shiftRadius=0;
pieSeries.labels.template.disabled=true;
//pieSeries.labels.template.text=“{category}\n{value.percent.formatNumber('#.#')}%”;
pieSeries.slices.template.events.on(“点击”,函数(事件){
选择Slice(event.target.dataItem);
})
var chart2=container.createChild(am4charts.PieChart);
图表2.width=AM4核心百分比(30);
图表2.2半径=AM4中心百分比(80);
//添加和配置系列
var pieSeries2=chart2.series.push(新的am4charts.PieSeries());
pieSeries2.dataFields.value=“value”;
pieSeries2.dataFields.category=“name”;
pieSeries2.slices.template.states.getKey(“活动”).properties.shiftRadius=0;
//pieSeries2.labels.template.radius=AM4核心百分比(50);
//pieSeries2.labels.template.inside=true;
//pieSeries2.labels.template.fill=am4core.color(“#ffffffff”);
pieSeries2.labels.template.disabled=true;
pieSeries2.ticks.template.disabled=true;
pieSeries2.alignLabels=false;
pieSeries2.事件(位置更改,更新线);
var interfaceColors=新的am4core.InterfaceColorSet();
var chart3=container.createChild(am4charts.PieChart);
图表3.宽度=AM4核心百分比(30);
图表3.半径=AM4中心百分比(80);
//添加和配置系列
var pieSeries3=chart3.series.push(新的am4charts.PieSeries());
pieSeries3.dataFields.value=“升”;
pieSeries3.dataFields.category=“国家”;
pieSeries3.slices.template.states.getKey(“活动”).properties.shiftRadius=0;
pieSeries3.labels.template.disabled=true;
//pieSeries.labels.template.text=“{category}\n{value.percent.formatNumber('#.#')}%”;
pieSeries.slices.template.events.on(“点击”,函数(事件){
选择Slice(event.target.dataItem);
})
var line1=container.createChild(am4core.Line);
line1.strokeDasharray=“2,2”;
line1.strokeOpacity=0.5;
line1.stroke=接口颜色.getFor(“可选背景”);
line1.isMeasured=假;
var line2=container.createChild(am4core.Line);
line2.strokeDasharray=“2,2”;
line2.strokeOpacity=0.5;
line2.stroke=接口颜色.getFor(“可选背景”);
line2.isMeasured=假;
var选择切片;
函数selectSlice(数据项){
selectedSlice=dataItem.slice;
var fill=selectedSlice.fill;
var count=dataItem.dataContext.subData.length;
pieSeries2.colors.list=[];
对于(变量i=0;i
非常感谢您的帮助。请找到这把小提琴
您需要复制selectslice
和updatelines
函数,或者使用参数进行修改,并且您需要在第三个饼图上单击新的行来重新绘制。单击立陶宛的一个饼图,您可以看到第三个饼图
// Themes begin
am4core.useTheme(am4themes_dataviz);
am4core.useTheme(am4themes_animated);
// Themes end
var container = am4core.create("chartdiv", am4core.Container);
container.width = am4core.percent(100);
container.height = am4core.percent(100);
container.layout = "horizontal";
var chart = container.createChild(am4charts.PieChart);
// Add data
chart.data = [{
"country": "Lithuania",
"litres": 500,
"subData": [{ name: "A", value: 200 },
{ name: "B", value: 150 },
{ name: "C", value: 100 },
{ name: "D", value: 50,
subData: [{name: "D2", value: 35,
name: "D3", value: 15}]
}]
}, {
"country": "Czech Republic",
"litres": 300
}, {
"country": "Ireland",
"litres": 200
}, {
"country": "Germany",
"litres": 150
}, {
"country": "Australia",
"litres": 140
}, {
"country": "Austria",
"litres": 120
}];
// Add and configure Series
var pieSeries = chart.series.push(new am4charts.PieSeries());
pieSeries.dataFields.value = "litres";
pieSeries.dataFields.category = "country";
pieSeries.slices.template.states.getKey("active").properties.shiftRadius = 0;
pieSeries.labels.template.disabled = true;
//pieSeries.labels.template.text = "{category}\n{value.percent.formatNumber('#.#')}%";
pieSeries.slices.template.events.on("hit", function(event) {
selectSlice(event.target.dataItem);
})
var chart2 = container.createChild(am4charts.PieChart);
chart2.width = am4core.percent(30);
chart2.radius = am4core.percent(80);
// Add and configure Series
var pieSeries2 = chart2.series.push(new am4charts.PieSeries());
pieSeries2.dataFields.value = "value";
pieSeries2.dataFields.category = "name";
pieSeries2.slices.template.states.getKey("active").properties.shiftRadius = 0;
//pieSeries2.labels.template.radius = am4core.percent(50);
//pieSeries2.labels.template.inside = true;
//pieSeries2.labels.template.fill = am4core.color("#ffffff");
pieSeries2.labels.template.disabled = true;
pieSeries2.ticks.template.disabled = true;
pieSeries2.alignLabels = false;
pieSeries2.events.on("positionchanged", updateLines);
var interfaceColors = new am4core.InterfaceColorSet();
var chart3 = container.createChild(am4charts.PieChart);
chart3.width = am4core.percent(30);
chart3.radius = am4core.percent(80);
// Add and configure Series
var pieSeries3 = chart3.series.push(new am4charts.PieSeries());
pieSeries3.dataFields.value = "litres";
pieSeries3.dataFields.category = "country";
pieSeries3.slices.template.states.getKey("active").properties.shiftRadius = 0;
pieSeries3.labels.template.disabled = true;
//pieSeries.labels.template.text = "{category}\n{value.percent.formatNumber('#.#')}%";
pieSeries.slices.template.events.on("hit", function(event) {
selectSlice(event.target.dataItem);
})
var line1 = container.createChild(am4core.Line);
line1.strokeDasharray = "2,2";
line1.strokeOpacity = 0.5;
line1.stroke = interfaceColors.getFor("alternativeBackground");
line1.isMeasured = false;
var line2 = container.createChild(am4core.Line);
line2.strokeDasharray = "2,2";
line2.strokeOpacity = 0.5;
line2.stroke = interfaceColors.getFor("alternativeBackground");
line2.isMeasured = false;
var selectedSlice;
function selectSlice(dataItem) {
selectedSlice = dataItem.slice;
var fill = selectedSlice.fill;
var count = dataItem.dataContext.subData.length;
pieSeries2.colors.list = [];
for (var i = 0; i < count; i++) {
pieSeries2.colors.list.push(fill.brighten(i * 2 / count));
}
chart2.data = dataItem.dataContext.subData;
pieSeries2.appear();
var middleAngle = selectedSlice.middleAngle;
var firstAngle = pieSeries.slices.getIndex(0).startAngle;
var animation = pieSeries.animate([{ property: "startAngle", to: firstAngle - middleAngle }, { property: "endAngle", to: firstAngle - middleAngle + 360 }], 600, am4core.ease.sinOut);
animation.events.on("animationprogress", updateLines);
selectedSlice.events.on("transformed", updateLines);
// var animation = chart2.animate({property:"dx", from:-container.pixelWidth / 2, to:0}, 2000, am4core.ease.elasticOut)
// animation.events.on("animationprogress", updateLines)
}
function updateLines() {
if (selectedSlice) {
var p11 = { x: selectedSlice.radius * am4core.math.cos(selectedSlice.startAngle), y: selectedSlice.radius * am4core.math.sin(selectedSlice.startAngle) };
var p12 = { x: selectedSlice.radius * am4core.math.cos(selectedSlice.startAngle + selectedSlice.arc), y: selectedSlice.radius * am4core.math.sin(selectedSlice.startAngle + selectedSlice.arc) };
p11 = am4core.utils.spritePointToSvg(p11, selectedSlice);
p12 = am4core.utils.spritePointToSvg(p12, selectedSlice);
var p21 = { x: 0, y: -pieSeries2.pixelRadius };
var p22 = { x: 0, y: pieSeries2.pixelRadius };
p21 = am4core.utils.spritePointToSvg(p21, pieSeries2);
p22 = am4core.utils.spritePointToSvg(p22, pieSeries2);
line1.x1 = p11.x;
line1.x2 = p21.x;
line1.y1 = p11.y;
line1.y2 = p21.y;
line2.x1 = p12.x;
line2.x2 = p22.x;
line2.y1 = p12.y;
line2.y2 = p22.y;
}
}
chart.events.on("datavalidated", function() {
setTimeout(function() {
selectSlice(pieSeries.dataItems.getIndex(0));
}, 1000);
});