Carpet Scatter Plot in JavaScript

How to make D3.js-based carpet scatter plots in Plotly.js.

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Plotly is a free and open-source graphing library for JavaScript. We recommend you read our Getting Started guide for the latest installation or upgrade instructions, then move on to our Plotly Fundamentals tutorials or dive straight in to some Basic Charts tutorials.

Basic Carpet Plot

var trace1 = {
  type: 'carpet',
  a: [4, 4, 4, 4.5, 4.5, 4.5, 5, 5, 5, 6, 6, 6].map(a => a * 1e-6),
  b: [1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3].map(b => b * 1e6),
  y: [2, 3.5, 4, 3, 4.5, 5, 5.5, 6.5, 7.5, 8, 8.5, 10],
  aaxis: {
    tickprefix: 'a = ',
    ticksuffix: 'm',
    smoothing: 1,
    minorgridcount: 9,
  },
  baxis: {
    tickprefix: 'b = ',
    ticksuffix: 'Pa',
    smoothing: 1,
    minorgridcount: 9,
  }
}

var data = [trace1]

Plotly.newPlot('myDiv', data)

Add Carpet Scatter Trace

var trace1 = {
  type: 'carpet',
  a: [4, 4, 4, 4.5, 4.5, 4.5, 5, 5, 5, 6, 6, 6].map(a => a * 1e-6),
  b: [1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3].map(b => b * 1e6),
  y: [2, 3.5, 4, 3, 4.5, 5, 5.5, 6.5, 7.5, 8, 8.5, 10],
  aaxis: {
    tickprefix: 'a = ',
    ticksuffix: 'm',
    smoothing: 1,
    minorgridcount: 9,
  },
  baxis: {
    tickprefix: 'b = ',
    ticksuffix: 'Pa',
    smoothing: 1,
    minorgridcount: 9,
  }
}

var trace2 = {
  type: 'scattercarpet',
  a: [4, 4.5, 5, 6].map(a => a * 1e-6),
  b: [1.5, 2.5, 1.5, 2.5].map(b => b * 1e6),
  line: {shape: 'spline', smoothing: 1}
}

var data = [trace1,trace2]

Plotly.newPlot('myDiv', data)

Add Multiple Carpet Scatter Traces

var trace1 = {
      type: "carpet",
      a: [0.1, 0.2, 0.3],
      b: [1, 2, 3],
      y: [
        [1, 2.2, 3],
        [1.5, 2.7, 3.5],
        [1.7, 2.9, 3.7]
      ],
      cheaterslope: 1,
      aaxis: {
        title: {
          text: "a"
        },
        tickmode: "linear",
        dtick: 0.05,
        minorgridcount: 9
      },
      baxis: {
        title: {
          text: "b"
        },
        tickmode: "linear",
        dtick: 0.5,
        minorgridcount: 9
      }
}

var trace2 = {
  type: "scattercarpet",
  name: "b = 1.5",
  a: [0.05, 0.15, 0.25, 0.35],
  b: [1.5, 1.5, 1.5, 1.5]
}

var trace3 = {
  type: "scattercarpet",
  name: "b = 2",
  a: [0.05, 0.15, 0.25, 0.35],
  b: [2, 2, 2, 2]
}

var trace4 = {
  type: "scattercarpet",
  name: "b = 2.5",
  a: [0.05, 0.15, 0.25, 0.35],
  b: [2.5, 2.5, 2.5, 2.5]
}

var trace5 = {
  type: "scattercarpet",
  name: "a = 0.15",
  a: [0.15, 0.15, 0.15, 0.15],
  b: [0.5, 1.5, 2.5, 3.5],
  line: {
        smoothing: 1,
        shape: "spline"
  }
}

var trace6 = {
  type: "scattercarpet",
  name: "a = 0.2",
  a: [0.2, 0.2, 0.2, 0.2],
  b: [0.5, 1.5, 2.5, 3.5],
  line: {
        smoothing: 1,
        shape: "spline"
  },
  marker: {
        size: [10, 20, 30, 40],
        color: ["#000", "#f00", "#ff0", "#fff"]
  }
}

var trace7 = {
  type: "scattercarpet",
  name: "a = 0.25",
  a: [0.25, 0.25, 0.25, 0.25],
  b: [0.5, 1.5, 2.5, 3.5],
  line: {
        smoothing: 1,
        shape: "spline"
  }
}

var data = [trace1,trace2,trace3,trace4,trace5,trace6,trace7]

var layout = {
  title: {
    text: "scattercarpet extrapolation, clipping, and smoothing"
  },
  hovermode: "closest"
}

Plotly.newPlot('myDiv', data, layout)