export interface MapConfig {
    basemap: string | null;
    basemapTiles: string | null;
    seamark: string | null;
    glyphs: string;
    sprite: string;
    local: {
        basemap: boolean;
        seamark: boolean;
        fonts: boolean;
        sprites: boolean;
    };
}
export declare function chartsDir(dataDir: string): string;
export declare function resolveMapConfig(dataDir: string, remoteBaseUrl: string, basemapTilesUrl: string): MapConfig;
export declare function safeChartPath(dataDir: string, rel: string): string | null;
export declare function chartContentType(absPath: string): string | undefined;