@thi.ng/color/api/gradients.d.ts

Array-based color types, CSS parsing, conversions, transformations, declarative theme generation, gradients, presets

import type { FnN, FnU, Tuple } from "@thi.ng/api";
import type { Color, ColorMixFn, ReadonlyColor } from "../api.js";
export type CosineGradientPreset = "blue-cyan" | "blue-magenta-orange" | "blue-white-red" | "cyan-magenta" | "green-blue-orange" | "green-cyan" | "green-magenta" | "green-red" | "heat1" | "magenta-green" | "orange-blue" | "orange-magenta-blue" | "purple-orange-cyan" | "rainbow1" | "rainbow2" | "rainbow3" | "rainbow4" | "red-blue" | "yellow-green-blue" | "yellow-magenta-cyan" | "yellow-purple-magenta" | "yellow-red";
export type CosineCoeffs = Tuple<number, 4>;
export type CosGradientSpec = Tuple<CosineCoeffs, 4>;
/**
 * A tuple of normalized position and color for a gradient stop.
 */
export type GradientColorStop<T> = [number, T];
export interface GradientOpts<T = ReadonlyColor> {
    /**
     * Number of colors to generate
     */
    num: number;
    /**
     * Gradient color stops, each a `[pos, color]`
     */
    stops: GradientColorStop<T>[];
    /**
     * Interpolation function
     */
    mix?: ColorMixFn<T>;
    /**
     * Easing function
     */
    easing?: FnN;
}
export interface CosineGradientOpts extends GradientOpts {
    /**
     * Post transformation function for each color
     */
    tx?: FnU<Color>;
}
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