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javascript - Chart.js How to invert (swap) axes? - Stack Overflow

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Taking from inspiration from this question, I am trying to figure out how to swap the axes of a Line chart in Chart.js.

For instance, in Highcharts we have this example, although it's an area chart.

Is it possible to "swap" the X and Y axis on a line chart?

datasets: [
    {
        label: "data1a",
        data: [1,2,3,4,5,1,2,3]
    }
]
yAxes: [
   {
     type: "linear",
     display: true,
     position: "left",
    }
]

Here's my fiddle modified from the above link. I'm basically trying to move it so the graph looks rotated 90 degrees. I tried changing the y position to 'top' but it still doesn't look correct.

Taking from inspiration from this question, I am trying to figure out how to swap the axes of a Line chart in Chart.js.

For instance, in Highcharts we have this example, although it's an area chart.

Is it possible to "swap" the X and Y axis on a line chart?

datasets: [
    {
        label: "data1a",
        data: [1,2,3,4,5,1,2,3]
    }
]
yAxes: [
   {
     type: "linear",
     display: true,
     position: "left",
    }
]

Here's my fiddle modified from the above link. I'm basically trying to move it so the graph looks rotated 90 degrees. I tried changing the y position to 'top' but it still doesn't look correct.

Share Improve this question edited May 23, 2017 at 12:07 CommunityBot 11 silver badge asked Jun 16, 2016 at 15:13 Justin MaatJustin Maat 1,9753 gold badges23 silver badges33 bronze badges 6
  • You want a thing like that (jsfiddle/dja5xow6) or i don't really understand ? – Ony Commented Jun 16, 2016 at 15:22
  • @Onyphlax Yes that looks to be what i want, but for Chart.js not HighCharts – Justin Maat Commented Jun 16, 2016 at 15:23
  • Well, i don't know sorry :/. Hope you will find a solution – Ony Commented Jun 16, 2016 at 15:42
  • FYI - I made an example in d3 to explain what I'm talking about - jsfiddle/jmaat/0nmy5f6u/10 – Justin Maat Commented Jun 16, 2016 at 20:20
  • Maybe this ment on issue 579 can help you: github./chartjs/Chart.js/issues/579#issuement-100980002 – Raquel Guimarães Commented Nov 1, 2017 at 20:34
 |  Show 1 more ment

2 Answers 2

Reset to default 2

The proposal by @dralth works fine with version 2.8.0, but for some reason showLines: true does not work anymore since version 2.9.0.

It is still possible showing the lines by using the showLine property for each dataset.

In case of @dralth's example it works as follows (tested with version 2.9.3):

new Chart(document.getElementById('myChart'), {
  type: 'scatter',
  data: {
    datasets: [
      {
        label: 'My Dataset',
        data: [{x: 3, y: 2}, {x: 5, y: 7}, {x: 9, y: 10}],
        showLine: true
      },
    ],
  },
  options: {
    scales: {
      xAxes: [
        {
          type: 'linear',
          position: 'bottom',
        },
      ],
      yAxes: [
        {
          type: 'linear',
        },
      ],
    }
  }
})

I was able to acplish this in Chart.js 2.8.0:

  1. Change data to a list of objects with x and y. Since the intention is to swap x and y axis, put the "x data" in the y variable and vise verse. eg. [{x: 3, y: 2}, {x: 5, y: 7}, {x: 9, y: 10}]

  2. Set the chart type to 'scatter'

  3. Add showLines: true to the options

The oute is a line chart where the line can be horizontal, vertical, or even double back on itself. The orientation of the line is defined by which values you put in x and which you put in y.

Here's an example configuration:

new Chart(document.getElementById('myChart'), {
  type: 'scatter',
  data: {
    datasets: [
      {
        label: 'My Dataset',
        data: [{x: 3, y: 2}, {x: 5, y: 7}, {x: 9, y: 10}],
      },
    ],
  },
  options: {
    showLines: true,
    scales: {
      xAxes: [
        {
          type: 'linear',
          position: 'bottom',
        },
      ],
      yAxes: [
        {
          type: 'linear',
        },
      ],
    }
  }
})

If you're using an older version of Chart.js that doesn't have scatter plots, you can use this plugin: http://dima117.github.io/Chart.Scatter/

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