__init__.py 文件源码

def epoch_to_epoch16(self, epoch):
        """
        Converts a CDF EPOCH to a CDF EPOCH16 value

        Parameters
        ==========
        epoch : double
            EPOCH to convert. Lists and numpy arrays are acceptable.

        Returns
        =======
        out : (double, double)
            EPOCH16 corresponding to epoch
        """
        e = numpy.require(epoch, numpy.float64)
        s = numpy.trunc(e / 1000.0)
        #ugly numpy stuff, probably a better way....
        res = numpy.hstack((s, (e - s * 1000.0) * 1e9))
        if len(res) <= 2:
            return res
        newshape = list(res.shape[0:-2])
        newshape.append(res.shape[-1] // 2)
        newshape.append(2)
        return numpy.rollaxis(res.reshape(newshape), -1, -2)