我有下面的堆叠组图。
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.2/Chart.min.js"></script>
<script>
var barChartData = {
labels: ['January', 'March', 'June', 'September', 'December'],
datasets: [{
label: 'Apple',
borderColor: 'rgba(255, 50, 50,1)',
backgroundColor: 'rgba(255, 50, 50,0.5)',
stack: 'Stack 0',
data: [3,6,4,8,2]
}, {
label: 'Orange',
borderColor: 'rgba(255, 160, 242,1)',
backgroundColor: 'rgba(255, 160, 242,0.5)',
stack: 'Stack 0',
data: [2,1,3,0,1]
}, {
label: 'Pear',
borderColor: 'rgba(79, 158, 255,1)',
backgroundColor: 'rgba(79, 158, 255,0.5)',
stack: 'Stack 0',
data: [3,4,1,5,2]
}, {
label: 'Apple',
borderColor: 'rgba(255, 50, 50,1)',
backgroundColor: 'rgba(255, 50, 50,0.5)',
stack: 'Stack 1',
data: [7,16,10,8,5]
},{
label: 'Mango',
borderColor: 'rgba(100, 244, 97,1)',
backgroundColor: 'rgba(100, 244, 97,0.5)',
stack: 'Stack 1',
data: [4,9,12,5,7]
}, {
label: 'Banana',
borderColor: 'rgba(255, 252, 91,1)',
backgroundColor: 'rgba(255, 252, 91,0.5)',
stack: 'Stack 1',
data: [3,6,13,14,5]
}, {
label: 'Orange',
borderColor: 'rgba(255, 160, 242,1)',
backgroundColor: 'rgba(255, 160, 242,0.5)',
stack: 'Stack 1',
data: [7,12,3,0,2]
}, {
label: 'Cherry',
borderColor: 'rgba(255, 132, 38,1)',
backgroundColor: 'rgba(255, 132, 38,0.5)',
stack: 'Stack 1',
data: [8,4,7,11,6]
}, {
label: 'Pear',
borderColor: 'rgba(79, 158, 255,1)',
backgroundColor: 'rgba(79, 158, 255,0.5)',
stack: 'Stack 1',
data: [8,14,9,12,16]
}]
};
var ctx = document.getElementById("myChart");
var myChart = new Chart(ctx, {
type: 'bar',
data: barChartData,
options: {
legend: {
display:true,
},
tooltips: {
mode: 'x',
intersect: false
},
responsive: true,
scales: {
xAxes: [{
stacked: true,
}],
yAxes: [{
stacked: true
}]
}
}
});
</script>
我想做两件事:
1)删除多余的Apple,Orange和Pear标签 2)使用各个堆栈的颜色突出显示/变暗图表中各个堆栈的边框。就像传说一样。
非常感谢任何帮助。 Image of my graph
答案 0 :(得分:2)
您可以为图例选项添加自定义逻辑,例如:
const labelTexts = []
const newLabels = []
labels = Chart.defaults.global.legend.labels.generateLabels(chart);
// group labels
labels.map((label) => {
if (labelTexts.indexOf(label.text) === -1) {
labelTexts.push(label.text)
}
})
labelTexts.map((text) => {
labels.map((label) => {
if (label.text === text) {
newLabels.push(label)
}
})
})
您可以在此处访问标签,自定义颜色,文字,然后对其进行分组等。因此,在这种情况下,您必须先按照文字对标签进行分组,如
for (var i = 0; i < newLabels.length - 2; i++) {
if (newLabels[i].text !== newLabels[i + 1].text) {
newLabels2.push(newLabels[i])
}
}
然后您可以删除冗余标签,如:
this
检查工作示例here