export declare const PREFIX: string;
export declare const INIT_ZOOM = 1;
export declare const ZOOM_STEP = 0.1;
export declare const INIT_ROTATE = 0;
export declare const ROTATE_STEP = 1;
export declare const MIN_ROTATE = -180;
export declare const MAX_ROTATE = 180;
export declare const DEFAULT_ZOOM_MARKS: {
    '0.5': string;
    '1': string;
    '1.5': string;
    '2': string;
    '2.5': string;
};
export declare const DEFAULT_ROTATE_MARKS: {
    '-90': string;
    '0': string;
    '90': string;
};