export declare const matrixToRotation: (a: number, b: number, c: number, d: number) => number;
/**
 * transform 字符变成矩阵
 */
export declare const transformStrToMatrix: (str: string) => {
    a: number;
    b: number;
    c: number;
    d: number;
    e: number;
    f: number;
};