/**
 * @param points
 * @param sX
 * @param sY
 * @param cp1x
 * @param cp1y
 * @param eX
 * @param eY
 * @param smoothness
 * @internal
 */
export declare function buildAdaptiveQuadratic(points: number[], sX: number, sY: number, cp1x: number, cp1y: number, eX: number, eY: number, smoothness?: number): number[];