[英]Unable to change the legend symbol to rounded square in chartjs in React
I am creating a DoughnutChart with the below code:-我正在使用以下代码创建 DoughnutChart:-
<Doughnut
data={this.props.chartdataSet}
options={{
title: {
display: false,
text: [this.props.title,'Eligible Amount : $180'],
fontSize: 18,
fontFamily:'Arial',
lineHeight:1.5
},
tooltips:{
enabled:false
},
legend: {
display: true,
position: "bottom",
align:'start',
reverse:true,
labels :{
padding:10,
boxWidth:12,
fontSize:13
},
},
}}
height={200}
/>
Now my chart is like:-现在我的图表是这样的:-
Now I want those square icons with the rounded square in corners, I was using usePointStyle but its making as a circle can I get help in making rounded icons现在我想要那些在角上带有圆角的方形图标,我使用的是 usePointStyle 但它是圆形的,我可以获得制作圆形图标的帮助吗
You can disable the standard legend and generate your own HTML legend instead.您可以禁用标准图例并生成您自己的 HTML 图例。
componentDidMount() {
this.generateLegend(document.getElementById("legend"), this.refs.chart.chartInstance);
}
generateLegend(div, chart) {
let ul = document.createElement("ul");
chart.data.labels.forEach((l, i) => {
let ds = chart.data.datasets[0];
let bgColor = ds.backgroundColor[i];
let border = ds.borderWidth + "px solid " + ds.borderColor[i];
let li = document.createElement("li");
let symbolSpan = document.createElement("span");
symbolSpan.style.cssText = "width: 6px; height: 14px; background-color:" + bgColor + "; border:" + border + ";";
li.appendChild(symbolSpan);
let labelSpan = document.createElement("span");
labelSpan.innerHTML = l;
symbolSpan.onclick = function() {
let hidden = !chart.getDatasetMeta(0).data[i].hidden;
chart.getDatasetMeta(0).data[i].hidden = hidden;
labelSpan.style.textDecoration = hidden ? "line-through" : "";
chart.update();
};
labelSpan.onclick = function() {
let hidden = !chart.getDatasetMeta(0).data[i].hidden;
chart.getDatasetMeta(0).data[i].hidden = hidden;
labelSpan.style.textDecoration = hidden ? "line-through" : "";
chart.update();
};
li.appendChild(labelSpan);
ul.appendChild(li);
});
div.appendChild(ul);
}
Please take a look at this StackBlitz and see how it works.请看一下这个StackBlitz ,看看它是如何工作的。
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