Function mul$1

libs/echarts/echarts.simple.js:2644–2661

* 矩阵相乘 * @param {Float32Array|Array. } out * @param {Float32Array|Array. } m1 * @param {Float32Array|Array. } m2

(out, m1, m2)

 * @param {Float32Array|Array.<number>} m2
 */
function mul$1(out, m1, m2) {
    // Consider matrix.mul(m, m2, m);
    // where out is the same as m2.
    // So use temp variable to escape error.
    var out0 = m1[0] * m2[0] + m1[2] * m2[1];
    var out1 = m1[1] * m2[0] + m1[3] * m2[1];
    var out2 = m1[0] * m2[2] + m1[2] * m2[3];
    var out3 = m1[1] * m2[2] + m1[3] * m2[3];
    var out4 = m1[0] * m2[4] + m1[2] * m2[5] + m1[4];
    var out5 = m1[1] * m2[4] + m1[3] * m2[5] + m1[5];
    out[0] = out0;
    out[1] = out1;
    out[2] = out2;
    out[3] = out3;
    out[4] = out4;
    out[5] = out5;
    return out;
}

/**
 * 平移变换