def _update_ra_dec(self):
fits_header = self.fits_header
self._ra, self._dec = wcs.xy2sky(self.pixel_x, self.pixel_y,
float(fits_header['CRPIX1']),
float(fits_header['CRPIX2']),
float(fits_header['CRVAL1']),
float(fits_header['CRVAL2']),
wcs.parse_cd(fits_header),
wcs.parse_pv(fits_header),
wcs.parse_order_fit(fits_header))
def test_parse_pv_values(self):
pv = wcs.parse_pv(self.header)
assert_that(pv, has_length(2))
assert_that(pv[0], has_length(11))
assert_that(pv[1], has_length(11))
# PV1_0 through PV1_10
assert_that(
pv[0],
contains(-1.909806626877E-03, 1.00815723310, 1.983393486250E-03,
0.00000000000, 4.623172227977E-05, -1.020423075276E-05,
2.258600565396E-05, -2.354656733463E-02,
-1.671912720931E-04, -2.339051960031E-02,
-2.903290518437E-05))
# PV2_0 through PV2_10
assert_that(
pv[1],
contains(-7.294883106769E-04, 1.00392029973, 1.983331686156E-03,
0.00000000000, 3.022667872225E-05, 4.509364811534E-05,
-5.385195875663E-06, -2.333221106141E-02,
-1.789051786060E-04, -2.348803123711E-02,
-2.465552723903E-05))