Amcharts 的自定义 CSS答案

【问题标题】：Custom css for AmchartsAmcharts 的自定义 CSS
【发布时间】：2020-08-25 14:27:51
【问题描述】：

我正在使用 Amcharts 4 和 Angular 7。找不到任何资源来为工具提示使用自定义 css。探索了 amchart 网站和 Stackoverflow 中的问题，但没有类似的问题。有谁知道这件事吗？将不胜感激任何帮助。我可以使用 inlign 样式，但使用外部 css 代码会更简洁。

【问题讨论】：

你好高兴，看起来这是你在 StackOverflow 上的第一篇文章。我建议您提供更多有关您正在使用的 Angular 和 Amchart 版本的信息，以便让其他用户了解它，以及您尝试了哪些步骤来满足您的需求。干杯！

标签： angular amcharts

【解决方案1】：

下一步是这样做的第一步：

如果您需要工具提示中的复杂信息 - 表格、图像、CSS 你可以考虑tooltipHTML。它接受任何有效的 HTML，包括成熟的 CSS，因此您可以在其中做任何事情。

/**
 * ---------------------------------------
 * This demo was created using amCharts 4.
 * 
 * For more information visit:
 * https://www.amcharts.com/
 * 
 * Documentation is available at:
 * https://www.amcharts.com/docs/v4/
 * ---------------------------------------
 */

// Themes begin
am4core.useTheme(am4themes_animated);
// Themes end

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

var data = [];
var value = 120;

var names = ["Raina",
  "Demarcus",
  "Carlo",
  "Jacinda",
  "Richie",
  "Antony",
  "Amada",
  "Idalia",
  "Janella",
  "Marla",
  "Curtis",
  "Shellie",
  "Meggan",
  "Nathanael",
  "Jannette",
  "Tyrell",
  "Sheena",
  "Maranda",
  "Briana",
  "Rosa",
  "Rosanne",
  "Herman",
  "Wayne",
  "Shamika",
  "Suk",
  "Clair",
  "Olivia",
  "Hans",
  "Glennie",
];

for (var i = 0; i < names.length; i++) {
  value += Math.round((Math.random() < 0.5 ? 1 : -1) * Math.random() * 5);
  data.push({ category: names[i], value: value });
}

chart.data = data;
var categoryAxis = chart.xAxes.push(new am4charts.CategoryAxis());
categoryAxis.renderer.grid.template.location = 0;
categoryAxis.dataFields.category = "category";
categoryAxis.renderer.minGridDistance = 15;
categoryAxis.renderer.grid.template.location = 0.5;
categoryAxis.renderer.grid.template.strokeDasharray = "1,3";
categoryAxis.renderer.labels.template.rotation = -90;
categoryAxis.renderer.labels.template.horizontalCenter = "left";
categoryAxis.renderer.labels.template.location = 0.5;

categoryAxis.renderer.labels.template.adapter.add("dx", function(dx, target) {
    return -target.maxRight / 2;
})

var valueAxis = chart.yAxes.push(new am4charts.ValueAxis());
valueAxis.tooltip.disabled = true;
valueAxis.renderer.ticks.template.disabled = true;
valueAxis.renderer.axisFills.template.disabled = true;

var series = chart.series.push(new am4charts.ColumnSeries());
series.dataFields.categoryX = "category";
series.dataFields.valueY = "value";
series.tooltipHTML = `<center><strong>YEAR 2020</strong></center>
<hr />
<table class="test_table">
<tr>
  <th align="left">Cars</th>
  <td>1</td>
</tr>
<tr>
  <th align="left">Motorcycles</th>
  <td>2</td>
</tr>
<tr>
  <th align="left">Bicycles</th>
  <td>3</td>
</tr>
</table>
<hr />`;
/*series.sequencedInterpolation = true;
series.fillOpacity = 0;
series.strokeOpacity = 1;
series.strokeDashArray = "1,3";
series.columns.template.width = 0.01;*/


var bullet = series.bullets.create(am4charts.CircleBullet);

chart.cursor = new am4charts.XYCursor();

chart.scrollbarX = new am4core.Scrollbar();
chart.scrollbarY = new am4core.Scrollbar();

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: 500px;
}

.test_table{
  color: red;
  
}

<script src="https://cdn.amcharts.com/lib/4/core.js"></script>
<script src="https://cdn.amcharts.com/lib/4/charts.js"></script>
<script src="https://cdn.amcharts.com/lib/4/themes/animated.js"></script>
<div id="chartdiv"></div>

这里是doc了解更多信息

【讨论】：