언어/Chart.js
[Chart.js]x라벨 클릭하면 링크로 이동하기(v4.2.1)
홍시_코딩기록
2024. 1. 16. 22:24
https://www.youtube.com/watch?v=HCLkAlm9lPI
const data = {
labels: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
labelsLink: [
],
datasets: [{
label: 'Weekly Sales',
data: [18, 12, 6, 9, 12, 3, 9],
backgroundColor: [
'rgba(255, 26, 104, 0.2)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
'rgba(255, 159, 64, 0.2)',
'rgba(0, 0, 0, 0.2)'
],
borderColor: [
'rgba(255, 26, 104, 1)',
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(153, 102, 255, 1)',
'rgba(255, 159, 64, 1)',
'rgba(0, 0, 0, 1)'
],
borderWidth: 1
}]
};
// config
const config = {
type: 'bar',
data,
options: {
scales: {
y: {
beginAtZero: true
}
}
}
};
// render init block
const ctx = document.getElementById('myChart');
const myChart = new Chart(
ctx,
config
);
function clickableScales(canvas, click){
//x라벨 위치 찾기
const height = myChart.scales.x.height;
const top = myChart.scales.x.top;
const bottom = myChart.scales.x.bottom;
const left = myChart.scales.x.left;
const right = myChart.scales.x.maxWidth / myChart.scales.x.ticks.length;
let resetCoordinates = canvas.getBoundingClientRect();
const x = click.clientX - resetCoordinates.left;
const y = click.clientY - resetCoordinates.top;
//x라벨 위치값 반복문으로 설정
for(let i = 0; i < myChart.scales.x.ticks.length; i++) {
if(x >= left + (right * i) && x <= right + (right * i) && y >= top && y <= bottom) {
console.log(myChart.config.data.labelsLink[i])
window.open(myChart.config.data.labelsLink[i])
}
}
}
ctx.addEventListener('click', (e) => {
clickableScales(ctx, e)
//차트 크기가 변경되면 오류가 나니까 추가
myChart.resize();
// myChart.update();
})