A React component for picking colorscales based on Chroma.js
npm install react-colorscalesA React UI component for picking and modifying colorscales, based on Chroma-js.
Part of Plotly's React Component Suite for building data visualization Web apps and products.
š DEMO
š Demo source code
š Wrapper for Dash apps (Python)
npm install react-colorscales
yarn add react-colorscales
``js
import {Colorscale} from 'react-colorscales';
import ColorscalePicker from 'react-colorscales';
const viridisColorscale = ['#fafa6e', '#9cdf7c', '#4abd8c', '#00968e', '#106e7c', '#2a4858'];
// Show a single colorscale
onClick={() => {}}
width={150}
/>
// Show the colorscale picker
colorscale={viridisColorscale}
/>
`
generates a single color scale palette:
| prop | Description | onClick
| -------------- | ------------------------------------------------------------------------------------------ |
| | Function to be called when colorscale is clicked. |colorscale
| | Colorscale as an array of color strings (HEX or RGB). See Quick Start above. |width
| | Optional: Width of an individual color swatch. Defaults to 20px. |maxWidth
| | Optional: Maximum width of colorscale palette. If set, maxWidth overrides swatch width. |label
| | Optional: Label positioned on the left side of color scale palette |
generates a UI panel for selecting a color scale palette:
| prop | Description | onChange
| ----------------------- | ------------------------------------------------------------------------------------------ |
| | Passes back a new color scale when a scale is chosen or modified. |colorscale
| | Default colorscale as an array of color strings (HEX or RGB). See Quick Start above. |nSwatches
| | Optional: Number of discrete colors or "swatches" in the default color scale. |fixSwatches
| | Optional: If set to true, hides the swatches slider and fixes swatches to nSwatches. |
| colorscaleType | Optional: If set, sets ColorPicker Dropdown to specific colorscale, one of COLORSCALE_TYPES|
| width | Optional: Can set width of component |
| className | Optional: Can add className to base level component |
| disableSwatchControls | Optional: Does not show swatch related controls in ColorPicker |
| scaleLength| Optional: Can specify the lengh of the Colorscales used in the ColorPicker |
See the demo app source code for an example of importing and using these components.
- Preloaded with ColorBrewer, cmocean, and cube helix color scales
- Log color scales
- Set custom scale breakpoints
- Set the number of discrete colors ("swatches") in a color scale
- Cynthia Brewer's ColorBrewer colorscales
- Kristen Thyng's cmocean color scales
- Dave Green's cube helix color scales
- Gregor Aisch's chroma-js for easy access to the aforementioned color scales in JavaScript.