chart.js图表以固定宽度变形

Question

I have a chart.js canvas inside a container which I gave a fixed min-width, so people could scroll the chart on mobile devices. 我在一个容器内有一个chart.js画布，该画布具有最小的固定宽度，因此人们可以在移动设备上滚动图表。

But as soon as the container has its fixed width, the chart is getting more distorted, the smaller the screen gets. 但是，一旦容器具有固定的宽度，图表就会变得越失真，屏幕越小。

In the chart I have already tried setting the options responsive: true and maintainAspectRatio: false . 在图表中，我已经尝试过设置选项responsive: true和maintainAspectRatio: false 。 This solved the problem a bit, but the chart is still distorted. 这一点解决了问题，但图表仍然失真。

Chart.js Options: Chart.js选项：

var options = {
    responsive: true,
    maintainAspectRatio: false,
    scales: {
      yAxes: [{
        stacked: false,
        gridLines: {
          display: true,
          color: "rgba(151,151,151,0.2)"
        }
      }],
      xAxes: [{
        gridLines: {
          display: true,
          color: "rgba(151,151,151,0.2)"
        }
      }]
    }
  };

HTML: HTML：

<div class="tds-chart-inner tds-hor-scroll">
 <canvas id="tds-chart-mem"></canvas>
</div>

CSS: CSS：

.tds-chart-inner {
 min-width: 850px !important;
}

.tds-hor-scroll {
 left: 0px;
 width: 100% !important;
 overflow-x: scroll;
}

canvas {
  left: 0px;
  height: 300px !important;
}

Working chart 工作图

扭曲的图表
Distorted chart 图表失真

Answer 1

<!DOCTYPE HTML>
<html lang="en">

<head>
<meta charset="utf-8">
<meta content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0" name="viewport" />

<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />


</head>

<style>
 .tds-chart-inner {
  width:100%;
 }


</style>

<body class="">

<div class="tds-chart-inner tds-hor-scroll">
 <canvas id="myChart"></canvas>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.4.0/Chart.min.js"> 
</script>


<script>
 var ctx = document.getElementById("myChart").getContext('2d');
 var myChart = new Chart(ctx, {
 type: 'line',
 data: {
    labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
    datasets: [{
        label: '# of Votes',
        data: [12, 19, 3, 5, 2, 3,80],
        backgroundColor: [
            'rgba(255, 99, 132, 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)'
        ],
        borderColor: [
            'rgba(255,99,132,1)',
            '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)'
        ],
        borderWidth: 1
    }]
},
options: {
    scales: {
        yAxes: [{
            ticks: {
                beginAtZero:true,
                fontColor: 'red'
            }
        }]
    }
}
});



</script>

Answer 2

for me the problem was that graph was setting for itself height that was bigger that I myself had set to canvas. 对我来说，问题是图形本身的高度设置得比我自己设置的要大。

my solution was: 我的解决方案是：

I removed all height setups for canvas (css and tag attribute) 我删除了画布的所有高度设置（css和标签属性）
Created container tag for the canvas and set height to it 为画布创建容器标签并为其设置高度
in chart options added: 在图表选项中添加：

  responsive: true, maintainAspectRatio: false,

in the example in the question problem was in css: 在问题的示例中，问题在CSS中：

 canvas { left: 0px; height: 300px !important; }

i would change it to: 我将其更改为：

 .tds-hor-scroll { overflow-x: auto; } .tds-chart-inner { min-width: 850px; height: 300px; }

 <div class="tds-hor-scroll"> <div class="tds-chart-inner"> <canvas id="tds-chart-mem"></canvas> </div> </div>

chart.js图表以固定宽度变形

问题描述

2 个解决方案

解决方案1
1 2018-08-13 11:36:57

解决方案2
0 2019-09-11 09:50:37

chart.js图表​​以固定宽度变形

问题描述

2 个解决方案

解决方案1 1 2018-08-13 11:36:57

解决方案2 0 2019-09-11 09:50:37

chart.js图表以固定宽度变形

解决方案1
1 2018-08-13 11:36:57

解决方案2
0 2019-09-11 09:50:37