/** The width of a digit over its height, and the gap between two digits over the height. */
export declare const DIGIT_WIDTH = 0.62;
export declare const DIGIT_GAP = 0.14;
/** The thickness of a stroke over the height. */
export declare const STROKE = 0.18;
/** The width of a string of digits at the height `h`. */
export declare const digitsWidth: (text: string, h: number) => number;
/**
 * A string of digits as one path of strokes, centred on `(cx, cy)`, `h` tall, upright. `stroke-width` is `strokeWidth(h)`. Characters that are not digits are left out.
 */
export declare function digitsD(text: string, h: number, cx: number, cy: number): string;
/** The thickness of a stroke at the height `h`. */
export declare const strokeWidth: (h: number) => number;