/**
 * @file Zoom scale utilities providing consistent clamping and edge damping.
 */
export declare const MIN_ZOOM_SCALE = 0.01;
export declare const MAX_ZOOM_SCALE = 10;
export type ZoomDeltaOptions = {
    baseStep?: number;
    dampingStrength?: number;
    deltaLimit?: number;
};
/**
 * Clamp the zoom scale within supported bounds.
 */
export declare const clampZoomScale: (scale: number) => number;
/**
 * Apply a relative zoom delta with damping near the allowed extremes.
 */
export declare const applyZoomDelta: (currentScale: number, delta: number, options?: ZoomDeltaOptions) => number;
/**
 * Debug notes:
 * - Reviewed src/components/canvas/CanvasBase.tsx to ensure wheel handlers use the damped delta helpers.
 * - Reviewed src/contexts/NodeCanvasContext.tsx to confirm clamping logic matches exported limits.
 */