如何在amCharts 4中绘制堆积条形图的轮廓？

编程问答 2022-06-09

问题描述

我目前在amCharts 4中使用Stacked XYChart，并且只显示一个条：

Single stacked bar chart

我正在尝试弄清楚如何在整个栏周围绘制轮廓-类似于：

enter image description here

我尝试将stroke（和strokeWidth＆strokeOpacity）属性添加到几乎所有内容中-系列，yAxes，xAxes等，但是它们都不产生结果我希望的。我觉得我似乎缺少一些明显的东西，因此我们将不胜感激。

解决方法

由于您提到您仅显示一列，并且假设这是100％堆积的图表，因此，您最好的办法是在图表的plotContainer上设置笔触：

chart.plotContainer.stroke = "#000000"

请注意，您的系列列需要将高度设置为100％，这样它才能在容器（series.columns.template.height = am4core.percent(100)）内完全展开。

下面的演示

var chart = am4core.create("chartdiv",am4charts.XYChart);

chart.data = [{
  "year": "2016","europe": 2.5,"namerica": 2.5,"asia": 2.1,"lamerica": 0.3,"meast": 0.2,"africa": 0.1
}];

chart.legend = new am4charts.Legend();
chart.legend.position = "top";

chart.plotContainer.stroke = "#000000";
chart.plotContainer.strokeWidth = 5;

var categoryAxis = chart.yAxes.push(new am4charts.CategoryAxis());
categoryAxis.dataFields.category = "year";
categoryAxis.renderer.grid.template.opacity = 0;
categoryAxis.renderer.labels.template.disabled = true;

var valueAxis = chart.xAxes.push(new am4charts.ValueAxis());
valueAxis.min = 0;
valueAxis.max = 100;
valueAxis.strictMinMax = true; 
valueAxis.renderer.grid.template.opacity = 0;
valueAxis.renderer.labels.template.disabled = true;
valueAxis.renderer.baseGrid.disabled = true;
valueAxis.calculateTotals = true;


function createSeries(field,name) {
  var series = chart.series.push(new am4charts.ColumnSeries());
  series.dataFields.valueX = field;
  series.dataFields.categoryY = "year";
  series.dataFields.valueXShow = "totalPercent";
  series.stacked = true;
  series.name = name;
  series.columns.template.height = am4core.percent(100);
}

createSeries("europe","Europe");
createSeries("namerica","North America");
createSeries("asia","Asia");
createSeries("lamerica","Latin America");
createSeries("meast","Middle East");
createSeries("africa","Africa");
body {
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";
}

#chartdiv {
  width: 100%;
  height: 200px;
}
<script src="https://cdn.amcharts.com/lib/4/core.js"></script>
<script src="https://cdn.amcharts.com/lib/4/charts.js"></script>
<div id="chartdiv"></div>

,

我认为这是我们可以实现的。根据您的要求，它不会连续冲程。 您可能已经尝试过了。

enter image description here 

function createSeries(field,name) {
  var series = chart.series.push(new am4charts.ColumnSeries());
  series.dataFields.valueX = field;
  series.dataFields.categoryY = "year";
  series.stacked = true;
  series.name = name;
  series.stroke = am4core.color("#000");
  
  var labelBullet = series.bullets.push(new am4charts.LabelBullet());
  labelBullet.locationX = 0.5;
  labelBullet.label.text = "{valueX}";
  labelBullet.label.fill = am4core.color("#fff");
}

代码库-https://jsfiddle.net/sarunuk/dyohfr68/1/

amchartsamcharts4javascriptstyling