colormapBuilder()

function colormapBuilder(
   color, 
   convertTo?, 
   n?, 
   opacity?): string[] | number[][];

Builds a color ramp (discrete or continuous) from a specified colormap.

Parameters

Parameter	Type	Description
color	string	Name of the colormap to use (e.g. 'viridis', 'RdBu_r').
convertTo?	string	Optional output format ('hex' or 'css'). Default is raw RGB arrays.
n?	number	Number of color steps to generate (default: 255).
opacity?	number	Opacity factor from 0 to 1 (default: 1).

Returns

string[] | number[][]

Array of colors in the selected format.

Example

// Generate a viridis ramp as CSS rgba() strings
const colors = colormapBuilder('viridis', 'css', 10, 0.8);
console.log(colors[0]); // "rgba(68,1,84,0.8)"