import type { IVolumeViewport } from '../types/index.js';
declare function getVolumeViewportScrollInfo(viewport: IVolumeViewport, volumeId: string, useSlabThickness?: boolean): {
    numScrollSteps: number;
    currentStepIndex: number;
    sliceRangeInfo: {
        sliceRange: import("../types/index.js").ActorSliceRange;
        spacingInNormalDirection: number;
        camera: import("../types/index.js").ICamera<number>;
    };
};
export default getVolumeViewportScrollInfo;