填充在我的 chartjs 线图中不起作用

padding not working in my chartjs line-graph

我使用的是最新版本的 chart.js (3.2.1)。如果我将其设置为正值,则填充有效。 但是填充 0(或负值)并没有将折线图精确地设置在 canvas

的边界处
options: {

        layout: {
            padding:0
        },
        interaction: {
            intersect: false,
        },
        plugins: {
            tooltip: {
                backgroundColor: 'transparent',
                displayColors: false,
                bodyFontSize: 14,
                titleColor: 'rgba(83,255,228,1)',
                callbacks: {
                    label: function (tooltipItems, data) {
                        return 'BMI: ' + tooltipItems.raw;
                    }
                }
            },
            legend: {
                display: false,
            },
        },
        elements: {
            point: {
                radius: 6,
                hitRadius: 6,
                hoverRadius: 6
            }
        },
        scales: {
            xAxes: {
                display: false,
            },
            yAxes: {
                display: false,
                
            },
        }
    }

图表配置中的填充不是用于将 canvas 样式化到其他元素,填充唯一做的就是在 [= 之间添加一点 space 的能力24=] 边缘和线,从您提供的图像看来,它似乎到达了 canvas 的末尾,空的 space 是 canvas.[=14 下面的另一个元素=]

如您在此示例中所见,canvas 背景颜色为灰色,并且 padding: 0 线按预期触及 canvas 的末尾

var options = {
  type: 'line',
  data: {
    labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
    datasets: [{
        label: '# of Votes',
        data: [12, 19, 3, 5, 2, 3],
        borderWidth: 1
      },
      {
        label: '# of Points',
        data: [7, 11, 5, 8, 3, 7],
        borderWidth: 1
      }
    ]
  },
  options: {
    plugins: {
      tooltip: {
        backgroundColor: 'transparent',
        displayColors: false,
        bodyFontSize: 14,
        titleColor: 'rgba(83,255,228,1)',
        callbacks: {
          label: function(tooltipItems, data) {
            return 'BMI: ' + tooltipItems.raw;
          }
        }
      },
      legend: {
        display: false,
      },
    },
    interaction: {
      intersect: false,
    },
    layout: {
      padding: 0
    },
    elements: {
      point: {
        radius: 0
      }
    },
    scales: {
      y: {
        display: false
      },
      x: {
        display: false
      }
    }
  }
}

var ctx = document.getElementById('chartJSContainer').getContext('2d');
new Chart(ctx, options);
canvas {
  background-color: #eee;
}
<body>
  <canvas id="chartJSContainer" width="600" height="400"></canvas>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.2.0/chart.js" integrity="sha512-opXrgVcTHsEVdBUZqTPlW9S8+99hNbaHmXtAdXXc61OUU6gOII5ku/PzZFqexHXc3hnK8IrJKHo+T7O4GRIJcw==" crossorigin="anonymous"></script>
</body>