diff options
Diffstat (limited to 'astro/ps2d.py')
| -rwxr-xr-x | astro/ps2d.py | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/astro/ps2d.py b/astro/ps2d.py index 9186701..cceb9fc 100755 --- a/astro/ps2d.py +++ b/astro/ps2d.py @@ -59,6 +59,7 @@ class PS2D: logger.info("Initializing PS2D instance ...") self.cube = cube self.pixelsize = pixelsize # [arcmin] + logger.info("Image pixel size: %.2 [arcmin]" % pixelsize) self.frequencies = np.array(frequencies) # [MHz] self.nfreq = len(self.frequencies) # Central frequency and redshift @@ -135,11 +136,11 @@ class PS2D: mx, my = np.meshgrid(p_x, p_x) rho, phi = self.cart2pol(mx, my) rho = np.around(rho).astype(np.int) - n_k_prep = (nx+1) // 2 + n_k_perp = (nx+1) // 2 n_k_los = (nz+1) // 2 - ps2d = np.zeros(shape=(n_k_los, n_k_prep)) # (k_los, k_prep) + ps2d = np.zeros(shape=(n_k_los, n_k_perp)) # (k_los, k_perp) logger.info("Calculating 2D PS by binning 3D PS ...") - for r in range(n_k_prep): + for r in range(n_k_perp): ix, iy = (rho == r).nonzero() for s in range(n_k_los): iz = (p_z == s).nonzero()[0] @@ -154,7 +155,10 @@ class PS2D: Save the calculated 2D power spectrum as a FITS image. """ hdu = fits.PrimaryHDU(data=self.ps2d, header=self.header) - hdu.writeto(outfile, clobber=clobber) + try: + hdu.writeto(outfile, overwrite=clobber) + except TypeError: + hdu.writeto(outfile, clobber=clobber) logger.info("PS2D results saved to file: %s" % outfile) @property @@ -177,7 +181,7 @@ class PS2D: return kz # [Mpc^-1] @property - def k_prep(self): + def k_perp(self): """ Comoving wavenumbers perpendicular to the LoS @@ -224,7 +228,7 @@ class PS2D: hdr["LTM2_2"] = 1.0 / dkz # WCS physical coordinates hdr["WCSTY1P"] = "PHYSICAL" - hdr["CTYPE1P"] = ("k_prep", "wavenumbers perpendicular to LoS") + hdr["CTYPE1P"] = ("k_perp", "wavenumbers perpendicular to LoS") hdr["CRPIX1P"] = (0.5, "reference pixel") hdr["CRVAL1P"] = (0.0, "coordinate of the reference pixel") hdr["CDELT1P"] = (dkx, "coordinate delta/step") @@ -246,7 +250,8 @@ def main(): parser.add_argument("-C", "--clobber", dest="clobber", action="store_true", help="overwrite existing file") - parser.add_argument("-p", "--pixelsize", dest="pixelsize", required=True, + parser.add_argument("-p", "--pixelsize", dest="pixelsize", + type=float, required=True, help="image cube pixel size; unit: [arcmin]") parser.add_argument("-i", "--infile", dest="infile", required=True, help="input FITS image cube") |