我正在使用http://www.chartjs.org/上的折线图
正如你可以看到Y轴的最大值(130)和最小值(60)是自动选择的，我想要最大值= 500和最小值=0。这可能吗?
当前回答
你必须覆盖比例，试试这个:(适用于ChartJS v1.x)
window.onload = function(){
var ctx = document.getElementById("canvas").getContext("2d");
window.myLine = new Chart(ctx).Line(lineChartData, {
scaleOverride : true,
scaleSteps : 10,
scaleStepWidth : 50,
scaleStartValue : 0
});
}
其他回答
var config = { type: 'line', data: { labels: ["January", "February", "March", "April", "May", "June", "July"], datasets: [{ label: "My First dataset", data: [10, 80, 56, 60, 6, 45, 15], fill: false, backgroundColor: "#eebcde ", borderColor: "#eebcde", borderCapStyle: 'butt', borderDash: [5, 5], }] }, options: { responsive: true, legend: { position: 'bottom', }, hover: { mode: 'label' }, scales: { xAxes: [{ display: true, scaleLabel: { display: true, labelString: 'Month' } }], yAxes: [{ display: true, ticks: { beginAtZero: true, steps: 10, stepValue: 5, max: 100 } }] }, title: { display: true, text: 'Chart.js Line Chart - Legend' } } }; var ctx = document.getElementById("canvas").getContext("2d"); new Chart(ctx, config); <script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.2.1/Chart.bundle.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <body> <canvas id="canvas"></canvas> </body>
你必须覆盖比例，试试这个:(适用于ChartJS v1.x)
window.onload = function(){
var ctx = document.getElementById("canvas").getContext("2d");
window.myLine = new Chart(ctx).Line(lineChartData, {
scaleOverride : true,
scaleSteps : 10,
scaleStepWidth : 50,
scaleStartValue : 0
});
}
对于Chart.js v3.2.0，这样做:
let options = {
scales: {
y: {
suggestedMin: 0,
suggestedMax: 69
},
x: {
suggestedMin: 0,
suggestedMax: 420
}
}
}
文档:https://www.chartjs.org/docs/latest/axes/ axis-range-settings
v3。X (v3.5.0)
线性笛卡尔轴
let options = {
scales: {
y: {
beginAtZero: true,
suggestedMax: 69
},
x: {
beginAtZero: true,
suggestedMax: 420
},
ticks: {
stepSize: 1
}
}
}
引用https://www.chartjs.org/docs/3.5.0/axes/cartesian/linear.html
线性径向轴
let options = {
scales: {
r: {
beginAtZero: true,
suggestedMax: 5,
ticks: {
stepSize: 1
}
}
}
}
引用https://www.chartjs.org/docs/3.5.0/axes/radial/linear.html
v2。X (v2.9.4)
线性笛卡尔轴
let options = {
scale: {
ticks: {
beginAtZero: true,
stepSize: 1,
suggestedMax: 5,
}
}
}
引用https://www.chartjs.org/docs/2.9.4/axes/cartesian/linear.html
线性径向轴
let options = {
scale: {
ticks: {
beginAtZero: true,
stepSize: 1,
suggestedMax: 5,
}
}
}
引用https://www.chartjs.org/docs/2.9.4/axes/radial/linear.html
注:v2为单数，v3为复数
对于"chart.js": "^3.6.1"，
options: {
scales: {
y: {
min: 0,
max: 100,
}
}
}
