import { CubicInterpolant } from 'three';
export interface RampPointJson {
    position: number;
    value: number;
}
export interface RampValueJson {
    points: RampPointJson[];
    interpolation: RampInterpolation;
}
export declare class RampPoint {
    private _position;
    private _value;
    constructor(_position?: number, _value?: number);
    toJSON(): RampPointJson;
    position(): number;
    value(): number;
    copy(point: RampPoint): void;
    clone(): RampPoint;
    isEqual(other_point: RampPoint): boolean;
    isEqualJSON(json: RampPointJson): boolean;
    fromJSON(json: RampPointJson): void;
    static areEqualJSON(json1: RampPointJson, json2: RampPointJson): boolean;
    static fromJSON(json: RampPointJson): RampPoint;
}
export declare enum RampInterpolation {
    CUBIC = "cubic"
}
export declare const RAMP_INTERPOLATIONS: RampInterpolation[];
export declare class RampValue {
    private _interpolation;
    private _points;
    private _uuid;
    constructor(_interpolation?: RampInterpolation, _points?: RampPoint[]);
    uuid(): string;
    interpolation(): RampInterpolation;
    points(): RampPoint[];
    static createInterpolantFromValues(positions: Float32Array, values: Float32Array): CubicInterpolant;
    createInterpolant(): CubicInterpolant;
    static createInterpolant(rampValue: RampValue): CubicInterpolant;
    static fromJSON(json: RampValueJson): RampValue;
    toJSON(): RampValueJson;
    clone(): RampValue;
    copy(ramp: RampValue): void;
    isEqual(other_ramp_value: RampValue): boolean;
    isEqualJSON(json: RampValueJson): boolean;
    static are_json_equal(json1: RampValueJson, json2: RampValueJson): boolean;
    fromJSON(json: RampValueJson): void;
}