diff options
Diffstat (limited to 'astro')
| -rwxr-xr-x | astro/ps2d.py | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/astro/ps2d.py b/astro/ps2d.py index 5e8d2a6..8852e97 100755 --- a/astro/ps2d.py +++ b/astro/ps2d.py @@ -395,9 +395,9 @@ def main(): parser.add_argument("-C", "--clobber", dest="clobber", action="store_true", help="overwrite existing file") - parser.add_argument("-p", "--pixelsize", dest="pixelsize", - type=float, required=True, - help="image cube pixel size; unit: [arcsec]") + parser.add_argument("-p", "--pixelsize", dest="pixelsize", type=float, + help="image cube pixel size [arcsec] (default: " + + "obtain from FITS header WCS info)") parser.add_argument("--window", dest="window", choices=["nuttall"], help="apply window along frequency axis " + @@ -413,7 +413,12 @@ def main(): wcs = WCS(f[0].header) nfreq = cube.shape[0] frequencies = get_frequencies(wcs, nfreq) - ps2d = PS2D(cube=cube, pixelsize=args.pixelsize, frequencies=frequencies, + if args.pixelsize: + pixelsize = args.pixelsize # [arcsec] + else: + pixelsize = wcs.wcs.cdelt[0] * 3600 # [deg] -> [arcsec] + + ps2d = PS2D(cube=cube, pixelsize=pixelsize, frequencies=frequencies, window_name=args.window) ps2d.calc_ps3d() ps2d.calc_ps2d() |