import type { Vec2 } from '../../math';
import type { ColorBarScale, ScaleType } from './types';
export interface ColorRamp {
    color_fn: (value: number) => string;
    domain: Vec2;
}
export declare const color_ramp_scale: (scale_type: ScaleType, domain: Vec2, output: Vec2) => import("./scales").ArcsinhScale | import("d3-scale").ScaleContinuousNumeric<number, number, never>;
export declare const resolve_color_ramp: (scale: ColorBarScale, range: Vec2, scale_type?: ScaleType) => ColorRamp;
export declare const sample_color_ramp: ({ color_fn, domain }: ColorRamp, scale_type?: ScaleType, steps?: number) => string[];