test_14_bluefile.py 文件源码

def test_FileSourceTimecodeType2000Complex(self):
        # Create a test file with frequency on the X-axis and time on the
        # Y-axis (as one might see from an FFT)
        subsize = 200
        xdelta = 2.0*math.pi/subsize
        ydelta = 0.125
        hdr = bluefile.header(2000, 'CF', subsize=subsize)
        hdr['xstart'] = -math.pi/2.0
        hdr['xdelta'] = xdelta
        hdr['xunits'] = 3 # frequency
        hdr['ydelta'] = ydelta
        hdr['yunits'] = 1 # time
        data = numpy.arange(1000, dtype=numpy.complex64).reshape((-1,subsize))

        self._check_FileSourceTimecode(hdr, data, subsize*2, ydelta)