Vue-Charts 标签数字到条形图的一侧
Vue-Charts label numbers to the side of a bar chart
我正在使用带有 vue-charts 的 Nuxt 应用程序。我有一个条形图,我想看看是否有办法回调图表旁边的数字。有些像这样
我的条形图选项现在看起来像这样。
barLostDollarChartOptions: {
responsive: true,
maintainAspectRatio: false,
legend: {
display: false,
},
title: {
display: true,
text: 'Daily NP Opportunity Costs'
},
scales: {
yAxes: [{
//Sets the Max value after re-rendering chart
beforeFit: function (scale){
let maxValue = 0
if (scale.chart.config && scale.chart.config.data && scale.chart.config.data.datasets) {
scale.chart.config.data.datasets.forEach(dataset => {
if (dataset && dataset.data) {
dataset.data.forEach(value => {
if (value > maxValue) {
maxValue = value
}
})
}
})
}
// After, set max option !!!
scale.options.ticks.max = maxValue
},
// afterFit: function (scale){
// console.log('yAxes',scale)
// let arr = Object.values(scale.chart.config.data.datasets[0].data);
// let min = Math.min(...arr);
// let max = Math.max(...arr);
// maxValueArray.push(max)
// // console.log( `Min value: ${min}, max value: ${max}` );
//
// }
}
],
xAxes: [{
ticks:{
callback: function(value, index, values) {
if(parseInt(value) >= 1000){
// console.log(value.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ","))
return '$' + value.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
} else {
return '$' + value;
}
},
},
}]
}
},
但我想看看是否有办法可以回叫号码并将其呈现在栏旁边?有什么想法吗?
您可以为此使用 datalabels plugin:
Chart.plugins.register(ChartDataLabels);
var options = {
type: 'horizontalBar',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
backgroundColor: 'orange'
}]
},
options: {
plugins: {
datalabels: {
anchor: 'end',
align: 'end',
formatter: (val) => ('$' + val)
}
}
}
}
var ctx = document.getElementById('chartJSContainer').getContext('2d');
new Chart(ctx, options);
<body>
<canvas id="chartJSContainer" width="600" height="400"></canvas>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/chartjs-plugin-datalabels/1.0.0/chartjs-plugin-datalabels.js"></script>
</body>
我正在使用带有 vue-charts 的 Nuxt 应用程序。我有一个条形图,我想看看是否有办法回调图表旁边的数字。有些像这样
我的条形图选项现在看起来像这样。
barLostDollarChartOptions: {
responsive: true,
maintainAspectRatio: false,
legend: {
display: false,
},
title: {
display: true,
text: 'Daily NP Opportunity Costs'
},
scales: {
yAxes: [{
//Sets the Max value after re-rendering chart
beforeFit: function (scale){
let maxValue = 0
if (scale.chart.config && scale.chart.config.data && scale.chart.config.data.datasets) {
scale.chart.config.data.datasets.forEach(dataset => {
if (dataset && dataset.data) {
dataset.data.forEach(value => {
if (value > maxValue) {
maxValue = value
}
})
}
})
}
// After, set max option !!!
scale.options.ticks.max = maxValue
},
// afterFit: function (scale){
// console.log('yAxes',scale)
// let arr = Object.values(scale.chart.config.data.datasets[0].data);
// let min = Math.min(...arr);
// let max = Math.max(...arr);
// maxValueArray.push(max)
// // console.log( `Min value: ${min}, max value: ${max}` );
//
// }
}
],
xAxes: [{
ticks:{
callback: function(value, index, values) {
if(parseInt(value) >= 1000){
// console.log(value.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ","))
return '$' + value.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
} else {
return '$' + value;
}
},
},
}]
}
},
但我想看看是否有办法可以回叫号码并将其呈现在栏旁边?有什么想法吗?
您可以为此使用 datalabels plugin:
Chart.plugins.register(ChartDataLabels);
var options = {
type: 'horizontalBar',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
backgroundColor: 'orange'
}]
},
options: {
plugins: {
datalabels: {
anchor: 'end',
align: 'end',
formatter: (val) => ('$' + val)
}
}
}
}
var ctx = document.getElementById('chartJSContainer').getContext('2d');
new Chart(ctx, options);
<body>
<canvas id="chartJSContainer" width="600" height="400"></canvas>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/chartjs-plugin-datalabels/1.0.0/chartjs-plugin-datalabels.js"></script>
</body>