@asphalt-react/data-viz

DataViz

DataViz charts visually represent data to effectively communicate information and patterns. There are multiple charts availables like Bar, Grouped Bar, Stacked Bar, Line, and Donut. Use these charts to represent complex data in a visual format.

You can control whether to show legends, grid, tooltip, change the format of the tick labels, and change the position of the legend.

You can also customize the colors of the bars and lines.

The charts are all reponsive and adapts to the screen size seemlessly.

Usage

import React from "react"
import {
  BarChart
} from "@asphalt-react/data-viz"

const data = [
  {
    date: "2012-05-13",
    "New York": "65.3",
    "San Francisco": "52.0",
    Austin: "72.4",
  },
  {
    date: "2012-05-14",
    "New York": "64.2",
    "San Francisco": "56.0",
    Austin: "72.5",
  }
]

export const BasicBarChart = ({ ...props }) => {
  return (
    <div style={{ width: "100%", height: "400px" }}>
      <BarChart data={data} dataKey="date" />
    </div>
  )
}

Types

There are multiple types of data visualization components. You can use any of them as per your use-case.

1. BarChart
2. LineChart
3. DonutChart

Responsive behavior

We set a minimum width of "312px" and a minimum height of "360px". The minimum height excludes the legends, as their wrapping behavior depends on the number of legends and available space.

All charts stretch to fit their container. Ensure you account for the legend height when defining the height of the container as the legend's height is dynamic becuse of it's wrapping behaviour.

BarChart

Bar chart which can display multiple data series, grouped, stack or side by side. Also supports both vertical and horizontal layout.

Props

data

Bar chart data.

Example:

[
  {
    month: "Jan",
    customers: 4350,
    attrition: 120
  },
  {
    month: "Feb",
    customers: 6600,
    attrition: 220
  }
]

To enhance the user experience, limit the number of bars to 20. In case of grouped, limit the sets to 8.

The data validation process verifies if all objects within the data array possess the identical set of keys, using the first object in the array as the reference point.

type	required	default
arrayOf	true	N/A

colors

Colors of individual bars in a grouped or stack bar chart. Use this prop to override the default set of colors. Accepts an object with the key mapped to the key of the bar, and the value mapped to the color value.

For instance:

const data = [
  {
    month: "Jan",
    customers: 4350,
    attrition: 120
  },
  {
    month: "Feb",
    customers: 6600,
    attrition: 220
  }
]

const colors = { customers: "#497aaa", attrition: "#666666" }

type	required	default
object	false	N/A

dataKey

Key of the datum to index the data.

For instance:

const data = [
  {
    month: "Jan",
    customers: 4350,
    attrition: 120
  },
  {
    month: "Feb",
    customers: 6600,
    attrition: 220
  }
]

Use "month" as the dataKey. This plots the "month" on x-axis, whereas in case of horizontal bar charts, plots the data on y-axis.

type	required	default
string	true	N/A

xAxisLabel

Label for X-axis.

type	required	default
string	false	N/A

yAxisLabel

Label for Y-axis.

type	required	default
string	false	N/A

showGrid

Show grid lines.

type	required	default
bool	false	false

showLegend

Show chart legend.

type	required	default
bool	false	true

legendTop

Position the legends at the top.

type	required	default
bool	false	false

xTickFormat

Formats the default x-axis tick label.

tickLabel - tick label value. return value should be string|number.

For instance:

(tickLabel) => {
 // return the formatted label
}

type	required	default
func	false	N/A

yTickFormat

Formats the default y-axis tick label.

tickLabel - tick label value. return value should be "string|number".

For instance:

(tickLabel) => {
 // return the formatted label
}

type	required	default
func	false	N/A

tooltip

React node to pass your own tooltip.

type	required	default
node	false	null

viewTooltip

Show tooltip.

type	required	default
bool	false	true

onMouseHover

Returns the value of the bar on mouse hover.

• event - browser event.
• currentData - the current data on which the mouse is hovering.
• groupData - the entire group which the current data is part of.

(event, { currentData, groupData }) => {}

type	required	default
func	false	N/A

horizontal

Enable horizontal view.

type	required	default
bool	false	false

stack

Enable stack view.

type	required	default
bool	false	false

showLabel

Show label bar.

type	required	default
bool	false	false

formatLabel

Format the label value displayed on top of each bar.

totalValue - The total value represented by the bar. The value type is number. return value should be string|number.

For instance:

(totalValue) => {
 // Return the formatted value as needed
}

type	required	default
func	false	N/A

LineChart

These display data points connected by straight lines. They are commonly used to show trends over time.

Props

data

Line chart data.

Example:

[
  {
    month: "Jan",
    customers: 4350,
    attrition: 120
  },
  {
    month: "Feb",
    customers: 6600,
    attrition: 220
  }
]

To enhance the user experience, limit the number of lines to 20.

The data validation process verifies if all objects within the data array possess the identical set of keys, using the first object in the array as the reference point.

type	required	default
arrayOf	true	N/A

colors

Colors of individual lines. Use this prop to override the default set of colors. Accepts an object with the key mapped to the key of the point, and the value mapped to the color value.

For instance:

const data = [
  {
    month: "Jan",
    customers: 4350,
    attrition: 120
  },
  {
    month: "Feb",
    customers: 6600,
    attrition: 220
  }
]

const colors = { customers: "#497aaa", attrition: "#666666" }

type	required	default
object	false	N/A

dataKey

Key of the datum to index the data.

For instance:

const data = [
  {
    month: "Jan",
    customers: 4350,
    attrition: 120
  },
  {
    month: "Feb",
    customers: 6600,
    attrition: 220
  }
]

Use "month" as the dataKey. This plots the "month" on x-axis.

type	required	default
string	true	N/A

xAxisLabel

Label for X-axis.

type	required	default
string	false	N/A

yAxisLabel

Label for Y-axis.

type	required	default
string	false	N/A

showGrid

Show grid lines.

type	required	default
bool	false	false

showLegend

Show chart legend.

type	required	default
bool	false	true

legendTop

Position the legends at the top.

type	required	default
bool	false	false

xTickFormat

Formats the default x-axis tick label.

tickLabel - tick label value. return value should be "string|number".

For instance:

(tickLabel) => new Date(tickLabel)

type	required	default
func	false	N/A

yTickFormat

Formats the default y-axis tick label.

tickLabel - tick label value. return value should be "string|number".

For instance:

(tickLabel) => new Date(tickLabel)

type	required	default
func	false	N/A

tooltip

React node to pass your own tooltip.

type	required	default
node	false	null

viewTooltip

Show tooltip.

type	required	default
bool	false	true

onMouseHover

Returns the value of the point(s) on mouse hover.

• event - browser event.
• currentData - the current data on which the mouse is hovering.

(event, { currentData }) => {}

type	required	default
func	false	N/A

showPoints

Show data points(circles) on the lines.

type	required	default
bool	false	false

startFromZero

Starts from 0 in y-axis. Else, takes the minimum value available.

type	required	default
bool	false	false

DonutChart

Donut charts are probably the most commonly used charts. They are divided into segments, the arc of each segment shows the proportional value of each piece of data.

Props

data

Donut chart data. Accepts an object with the key mapped to an arc.

Example:

  {
    Cartography: 100,
    GoFood: 200,
    Transport: 250
  }

type	required	default
object	true	N/A

colors

Colors of individual arcs in a donut chart. Use this prop to override the default set of colors. Accepts an object with the key mapped to an arc, and the value mapped to the color value.

For instance:

const data =  {
    Cartography: 100,
    GoFood: 200,
    Transport: 250
}

const colors = { GoFood: "#497aaa", Transport: "#666666" }

type	required	default
object	false	N/A

showLegend

Show chart legend.

type	required	default
bool	false	true

legendTop

Position the legends at the top.

type	required	default
bool	false	false

tooltip

React node to pass your own tooltip.

type	required	default
node	false	null

viewTooltip

Show tooltip.

type	required	default
bool	false	true

onMouseHover

Returns the value of the arc on mouse hover.

• event - browser event.
• currentData - the current data on which the mouse is hovering.

(event, { currentData }) => {}

type	required	default
func	false	N/A