diff options
Diffstat (limited to 'astro')
| -rwxr-xr-x | astro/fits/fitsimage.py | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/astro/fits/fitsimage.py b/astro/fits/fitsimage.py index 5b416a2..566cb53 100755 --- a/astro/fits/fitsimage.py +++ b/astro/fits/fitsimage.py @@ -24,7 +24,7 @@ class FITSImage: def __init__(self, infile, pixelsize=None): self.infile = infile with fits.open(infile) as f: - self.header = f[0].header + self.header = f[0].header.copy(strip=True) self.data = f[0].data self.ndim = self.data.ndim self.shape = self.data.shape @@ -56,13 +56,13 @@ class FITSImage: """ if self.ndim == 2: # NAXIS=2: [Y, X] - image = self.data[:, :] + image = self.data[:, :].copy() elif self.ndim == 3 and self.shape[0] == 1: # NAXIS=3: [FREQ=1, Y, X] - image = self.data[0, :, :] + image = self.data[0, :, :].copy() elif self.ndim == 4 and self.shape[0] == 1 and self.shape[1] == 1: # NAXIS=4: [STOKES=1, FREQ=1, Y, X] - image = self.data[0, 0, :, :] + image = self.data[0, 0, :, :].copy() else: raise ValueError("invalid data shape: {1}".format(self.shape)) return image @@ -71,13 +71,13 @@ class FITSImage: def image(self, value): if self.ndim == 2: # NAXIS=2: [Y, X] - self.data[:, :] = value + self.data = np.array(value) elif self.ndim == 3: # NAXIS=3: [FREQ=1, Y, X] - self.data[0, :, :] = value + self.data = np.array(value)[np.newaxis, :, :] else: # NAXIS=4: [STOKES=1, FREQ=1, Y, X] - self.data[0, 0, :, :] = value + self.data = np.array(value)[np.newaxis, np.newaxis, :, :] @property def pixelsize(self): @@ -98,6 +98,7 @@ class FITSImage: @pixelsize.setter def pixelsize(self, value): # Unit: [arcsec] + oldvalue = self.pixelsize self._pixelsize = value @property |