如何防止在Highcharts中被X隐藏元素?

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英文:

How to prevent hiding elements by X in highcharts?

问题

问题是当屏幕缩小时,图表下面的图标会被移除,但这并不是期望的行为。我还尝试了设置zoomEnabled: false,先前已经注册了zoomType: 'xy',但没有帮助。我还尝试了更改labels: overflow: "allow", padding: 1,同样没有改变。只有减小图标的大小才有帮助,但为了防止它们消失,你需要将它们减小得很多。

如何确保图标在小屏幕上不会消失,或者至少只隐藏图表中缺少的那些(取消对X轴的适应)?

初始化示例代码(我已注释掉我的假设):

chart1 = new Highcharts.Chart({
     chart: {
        type: 'column',
        //zoomType: 'xy',
     },
     title: {
        text: 'Title'
     },
     xAxis: {
           categories: $.map(months, function (item) {
               return item;
           }),
           labels: {
               useHTML: true,
               //overflow: "allow",
               //padding: 1,
               formatter: function() {
                 let icons = $.map(months, function (item) {
                     let icon = counter;
                     arrayIcon[item] = '<img src="icon_' + item + '.png" height="20">'
                 });

                 let objIcons = Object.assign({}, arrayIcon);
                 return objIcons[this.value];
                },
           },
           //zoomEnabled: false
       },
     yAxis: {
        title: {
           text: 'Sub-title'
        }
     },
     plotOptions: {
            column: {
              states: {
                inactive: {
                    enabled: false
                }
              }
            }
         },
     series: [{
        name: 'Dev #1',
        data: [5, 10, 20, 22, 25, 28, 30, 40, 80, 90]
     }, {
        name: 'Dev #2',
        data: [15, 15, 18, 40, 30, 25, 60, 60, 80, 70]
     }]
    });

在图像中,当屏幕缩小时会发生什么
如何防止在Highcharts中被X隐藏元素?

英文:

The problem is that when the screen is reduced, the icons under the graphs will be removed, but this would not be desirable. I also tried to set zoomEnabled: false, having previously registered in zoomType: 'xy', it did not help. I also tried to change labels: overflow: "allow", padding: 1, also without changes. Only reducing the size of the icons helped, but in order for them not to disappear, you need to reduce them very much.

How to make sure that the icons do not disappear on a small screen, or at least only those missing from the chart are hidden (cancellation of adaptation for the X axis)?

Example code for initialization. (Commented out my assumptions):

chart1 = new Highcharts.Chart({
chart: {
type: 'column',
//zoomType: 'xy',
},
title: {
text: 'Title'
},
xAxis: {
categories: $.map(months, function (item) {
return item;
}),
labels: {
useHTML: true,
//overflow: "allow",
//padding: 1,
fotmatter: function() {
let icons = $.map(months, function (item) {
let icon = counter;
arrayIcon[item] = '<img src="icon_' + item + '.png" height="20">'
});
let objIcons = Object.assign({}, arrayIcon);
return objIcons[this.value];
},
},
//zoomEnabled: false
},
yAxis: {
title: {
text: 'Sub-title'
}
},
plotOptions: {
column: {
states: {
inactive: {
enabled: false
}
}
}
},
series: [{
name: 'Dev #1',
data: [5, 10, 20, 22, 25, 28, 30, 40, 80, 90]
}, {
name: 'Dev #2',
data: [15, 15, 18, 40, 30, 25, 60, 60, 80, 70]
}]
});

In the image, what happens when the screen is reduced
如何防止在Highcharts中被X隐藏元素?

答案1

得分: 1

标签在调整图表大小时消失的原因是刻度的数量发生了变化。

始终保持固定刻度数量的解决方案是通过 xAxis.tickPositions 或设置 xAxis.tickInterval 来设置它们的位置。

还可以通过在 labels.formatter() 中使用自定义代码,在没有数据时移除标签。这可能与 responsive.rules 结合使用,可以根据屏幕大小设置图表选项的条件。

以下是示例配置:

Highcharts.chart('container', {
  xAxis: {
    tickInterval: 1,
    tickLength: 0,
    labels: {
      overflow: 'allow',
      autoRotation: false,
      useHTML: true,
      formatter: function() {
        return '<img src="' + img_path + '" style="width:20px; height:20px;" />';
      }
    }
  },
  series: [{
    type: 'column',
    data: [1, null, 3, 4]
  }],

  responsive: {
    rules: [{
      condition: {
        maxWidth: 200
      },
      chartOptions: {
        xAxis: {
          labels: {
            formatter: function() {
              let txt = '';
              this.chart.series.forEach(series => {
                series.points.forEach(point => {
                  if (point.y === 0 || point.y === null) {
                    if (point.x === this.pos) {
                      return
                    } else {
                      txt += '<img src="' + img_path + '" style="width:20px; height:20px;" />';
                    }
                  }
                })
              })
              return txt
            }
          }
        }
      }
    }]
  }
});

演示:
https://jsfiddle.net/BlackLabel/ctuL67an/

API 参考:
https://api.highcharts.com/highcharts/xAxis.tickInterval
https://api.highcharts.com/highcharts/xAxis.labels.formatter
https://api.highcharts.com/highcharts/responsive.rules

英文:

The reason why labels disappear when resizing the chart is that the number of tick change then.

The solution for always having a fixed number of ticks is setting their positions via xAxis.tickPositions or setting xAxis.tickInterval.

You can also remove labels when there is no data, by custom code in labels.formatter(). This might be use with responsive.rules, when you can set a condition on what size of the screen some chart options need to be set.

Here is the example config:

Highcharts.chart(&#39;container&#39;, {
xAxis: {
tickInterval: 1,
tickLength: 0,
labels: {
overflow: &#39;allow&#39;,
autoRotation: false,
useHTML: true,
formatter: function() {
return &#39;&lt;img src=&quot;&#39; + img_path + &#39;&quot; style=&quot; width:20px; height:20px;&quot; /&gt;&#39;;
}
}
},
series: [{
type: &#39;column&#39;,
data: [1, null, 3, 4]
}],
responsive: {
rules: [{
condition: {
maxWidth: 200
},
chartOptions: {
xAxis: {
labels: {
formatter: function() {
let txt = &#39;&#39;;
this.chart.series.forEach(series =&gt; {
series.points.forEach(point =&gt; {
if (point.y === 0 || point.y === null) {
if (point.x === this.pos) {
return
} else {
txt += &#39;&lt;img src=&quot;&#39; + img_path + &#39;&quot; style=&quot; width:20px; height:20px;&quot; /&gt;&#39;;
}
}
})
})
return txt
}
}
}
}
}]
}
});

Demo:
https://jsfiddle.net/BlackLabel/ctuL67an/

API References:
https://api.highcharts.com/highcharts/xAxis.tickInterval
https://api.highcharts.com/highcharts/xAxis.labels.formatter
https://api.highcharts.com/highcharts/responsive.rules

huangapple
  • 本文由 发表于 2023年3月9日 22:56:44
  • 转载请务必保留本文链接:https://go.coder-hub.com/75686295.html
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