--- title: Line Chart description: Used to display data points connected by straight line segments, showing trends and patterns in continuous data over time or sequences links: storybook: charts-line-chart--basic recharts: https://recharts.org/en-US/api/LineChart --- ## Usage ```tsx import { Chart, useChart } from "@chakra-ui/charts" import { CartesianGrid, Line, LineChart, XAxis, YAxis } from "recharts" ``` ```tsx ``` ## Examples ### Axes Label To add labels to the x and y axes, use the `Label` component from `recharts`. ```tsx ``` ### No Dots Set `dot` and `activeDot` to `false` to hide the dots completely. ```tsx ``` ### Point Labels Render the `LabelList` component from `recharts` inside the `Line` component to show labels at each data point. ```tsx ``` ### Gradient Use the `Chart.Gradient` component to create a gradient. Ensure the `id` is unique and used in the `stroke` prop of the `Line` component. ```tsx ``` ### Dashed Set the `strokeDasharray` prop in the `series` object to create a dashed line. ```ts /strokeDasharray: "5 5"/ const chart = useChart({ data: [ { windows: 186, mac: 165, month: "January" }, //... ], series: [ { name: "windows", color: "teal.solid", strokeDasharray: "5 5" }, { name: "mac", color: "purple.solid" }, ], }) ``` ### Multiple Here's an example of a line chart with multiple series. ### Legend Interaction Adding interactivity to the chart legends make it come to life. To enable this feature, set the `interaction` prop to `"hover"` or `"click"` in the `Chart.Legend` component. ```tsx ``` ### Start and End Tick By default, the chart shows the label for each tick. To show just the start and end ticks, pass the `ticks` prop to the `XAxis` component from `recharts`. > You can optionally pass a `label` prop to the `XAxis` component to show a > label at the bottom of the axis. ```tsx ``` ### Value Formatter To format the value axis ticks, pass the `tickFormatter` prop to the `YAxis` component from `recharts`. ```tsx ``` ### Biaxial Use the `yAxisId` prop in the `series` object and `YAxis` component to create a chart with two y-axes. ```tsx ``` ### Custom Tooltip In event you need to customize the tooltip entirely, replace the `Chart.Tooltip` component with your own. The basic signature of a custom tooltip looks like: ```tsx function CustomTooltip(props: TooltipProps) { const { active, payload, label } = props if (!active || !payload || payload.length === 0) return null return {/* Your custom tooltip content */} } ``` ### Series Label To add a custom label to the series, set the `label` prop in the `series` object. ```tsx /label: "Mac sales"/ /label: "Linux sales"/ const chart = useChart({ data: [ { mac: 10, linux: 120, month: "January" }, //... ], series: [ { name: "mac", label: "Mac sales", color: "purple.solid" }, { name: "linux", label: "Linux sales", color: "blue.solid" }, ], }) ``` ### Reference Point Use the reference components from `recharts` to highlight a specific data point. ```tsx ``` ### Value Domain Pass the `domain` prop to the `YAxis` component to set the domain (upper and lower bounds) of the value axis. ```tsx /domain: [0, 100]/ ``` ### Connect Nulls To connect the null values, set the `connectNulls` prop to `true` in the `Line` component. ```tsx ``` ### Composition Here's an example of composing the `Card`, `State` and `Chart` components together to create a stunning visualization. ### Line Types Recharts provides flexible support for various kinds of line charts. Below are the different types of line charts you can create: