ScatterChart

Scatter chart component

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Source

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Package

@mantine/charts

Usage

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'BMI' }}
      xAxisLabel="Age"
      yAxisLabel="BMI"
    />
  );
}

Multiple series

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'BMI' }}
      xAxisLabel="Age"
      yAxisLabel="BMI"
    />
  );
}

Legend

To display chart legend, set withLegend prop. When one of the items in the legend is hovered, the corresponding data series is highlighted in the chart.

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'BMI' }}
      xAxisLabel="Age"
      yAxisLabel="BMI"
      withLegend
    />
  );
}

You can pass props down to recharts Legend component with legendProps prop. For example, setting legendProps={{ verticalAlign: 'bottom', height: 50 }} will render the legend at the bottom of the chart and set its height to 50px.

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'BMI' }}
      xAxisLabel="Age"
      yAxisLabel="BMI"
      withLegend
      legendProps={{ verticalAlign: 'bottom', height: 20 }}
    />
  );
}

X and Y axis props

Use xAxisProps and yAxisProps to pass props down to recharts XAxis and YAxis components. For example, these props can be used to change orientation of axis:

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      tickLine="xy"
      yAxisProps={{ tickMargin: 15, orientation: 'right' }}
      xAxisProps={{ tickMargin: 15, orientation: 'top' }}
      dataKey={{ x: 'age', y: 'BMI' }}
    />
  );
}

Value formatter

To format values in the tooltip and axis ticks, use valueFormat prop. It accepts a function that takes number value as an argument and returns formatted value or an object with x and y keys to format x and y values separately:

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'average_monthly_spending' }}
      yAxisProps={{ domain: [800, 3400] }}
      valueFormatter={{
        x: (value) => `${value} years`,
        y: (value) => `$${new Intl.NumberFormat('en-US').format(value)}`,
      }}
    />
  );
}

Point labels

Set pointLabels prop to x or y to display labels on data points for the corresponding axis:

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'BMI' }}
      xAxisLabel="Age"
      yAxisLabel="BMI"
      pointLabels="x"
    />
  );
}

Grid and text colors

Use --chart-grid-color and --chart-text-color to change colors of grid lines and text within the chart. With CSS modules, you can change colors depending on color scheme:

.root {
  @mixin light {
    --chart-grid-color: alpha(var(--mantine-color-black), 0.15);
    --chart-text-color: var(--mantine-color-gray-7);
  }

  @mixin dark {
    --chart-grid-color: alpha(var(--mantine-color-white), 0.15);
    --chart-text-color: var(--mantine-color-dark-0);
  }
}

If your application has only one color scheme, you can use gridColor and textColor props instead of CSS variables:

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'BMI' }}
      gridColor="gray.5"
      textColor="gray.9"
    />
  );
}

Stroke dash array

Set strokeDasharray prop to control the stroke dash array of the grid and cursor lines. The value represent the lengths of alternating dashes and gaps. For example, strokeDasharray="10 5" will render a dashed line with 10px dashes and 5px gaps.

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'BMI' }}
      xAxisLabel="Age"
      yAxisLabel="BMI"
      strokeDasharray="15 15"
    />
  );
}

Units

Set unit prop to render a unit label next to the axis ticks and tooltip values:

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'average_monthly_spending' }}
      yAxisProps={{ domain: [800, 3500] }}
      unit={{ y: '$' }}
      labels={{ x: 'Age', y: 'Spending' }}
    />
  );
}

Tooltip labels

To customize labels displayed in the tooltip, use labels prop:

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'BMI' }}
      xAxisLabel="Age"
      yAxisLabel="BMI"
      labels={{ x: 'Age', y: 'Body mass index' }}
    />
  );
}

Custom tooltip

Use tooltipProps.content to pass custom tooltip renderer to recharts Tooltip component:

import { ScatterChart } from '@mantine/charts';
import { Paper, Text } from '@mantine/core';
import { data } from './data';

interface ChartTooltipProps {
  payload: Record<string, any>[] | undefined;
}

function ChartTooltip({ payload }: ChartTooltipProps) {
  if (!payload) return null;

  return (
    <Paper px="md" py="sm" withBorder shadow="md" radius="md">
      {payload.map((item: any) => (
        <Text key={item.name} fz="sm">
          {item.name}: {item.value}
        </Text>
      ))}
    </Paper>
  );
}

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'BMI' }}
      xAxisLabel="Age"
      yAxisLabel="BMI"
      tooltipProps={{
        content: ({ payload }) => <ChartTooltip payload={payload} />,
      }}
    />
  );
}

Remove tooltip

To remove tooltip, set withTooltip={false}. It also removes the cursor line and disables interactions with the chart.

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'BMI' }}
      xAxisLabel="Age"
      yAxisLabel="BMI"
      withTooltip={false}
    />
  );
}

Tooltip animation

By default, tooltip animation is disabled. To enable it, set tooltipAnimationDuration prop to a number of milliseconds to animate the tooltip position change.

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'BMI' }}
      xAxisLabel="Age"
      yAxisLabel="BMI"
      tooltipAnimationDuration={200}
    />
  );
}

Customize dots

You can use any shape as a dot by passing props to recharts Scatter component:

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'BMI' }}
      xAxisLabel="Age"
      yAxisLabel="BMI"
      scatterProps={{ shape: <circle r={3} /> }}
    />
  );
}

Reference lines

Use referenceLines prop to render reference lines. Reference lines are always rendered behind the chart.

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'BMI' }}
      xAxisLabel="Age"
      yAxisLabel="BMI"
      referenceLines={[
        { y: 14, label: 'Underweight ↓', color: 'red.7' },
        { y: 19, label: 'Normal weight', color: 'teal.7' },
        { y: 30, label: 'Overweight ↑', color: 'red.7' },
      ]}
    />
  );
}

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