aimfast automatically finds its own centre given html or fits file el…

…se uses user supplied -ptc option

aimfast/aimfast.py

@@ -43,6 +43,7 @@
 from aimfast.auxiliary import deg2arcsec, deg2arcsec, rad2arcsec
 from aimfast.auxiliary import dec2deg, ra2deg, rad2deg, deg2rad, unwrap
 
+from aimfast.auxiliary import deg2dec, deg2ra
 
 # Get version
 from pkg_resources import get_distribution
@@ -80,6 +81,7 @@
 # Decimal places
 DECIMALS = 2
 
+
 def create_logger():
  """Create a console logger"""
  log = logging.getLogger(__name__)
@@ -2628,8 +2630,20 @@ def main():
  online_catalog = args.online_catalog
  catalog_name = f"{catalog_prefix}_{online_catalog}_catalog_table.txt"
  images_list = []
- centre_coord = args.centre_coord.split(',')
- # import ipdb; ipdb.set_trace()
+
+ if models[0][0].endswith('html'):
+ Tigger_model = Tigger.load(models[0][0])
+ centre_ra_deg, centre_dec_deg = _get_phase_centre(Tigger_model)
+ centre_coord = deg2ra(centre_ra_deg) + ',' + deg2dec(centre_dec_deg)
+ centre_coord = centre_coord.split(',')
+ elif models[0][0].endswith('.fits'):
+ centre_ra_deg, centre_dec_deg = fitsInfo(models[0][0])['centre']
+ centre_coord = deg2ra(centre_ra_deg) + ',' + deg2dec(centre_dec_deg)
+ centre_coord = centre_coord.split(',')
+ else:
+ print('Please supply central coordinates using -ptc see help')
+ centre_coord = args.centre_coord.split(',')
+
  get_online_catalog(catalog=online_catalog.upper(), centre_coord=centre_coord,
  width='1.0d', thresh=1.0,
  catalog_table=catalog_name)

aimfast/auxiliary.py

@@ -107,6 +107,27 @@ def ra2deg(ra_hms):
  return h_m_s
 
 
+def deg2ra(ra_deg):
+ """Converts right ascension in hms coordinates to degrees
+
+ Parameters
+ ----------
+ ra_deg : float
+ ra in degrees format
+
+ Returns
+ -------
+ HH:MM:SS : str
+
+ """
+ if ra_deg < 0:
+ ra_deg = 360 + ra_deg
+ HH = int((ra_deg*24)/360.)
+ MM = int((((ra_deg*24)/360.)-HH)*60)
+ SS = (((((ra_deg*24)/360.)-HH)*60)-MM)*60
+ return "%s:%s:%s"%(HH,MM,SS)
+
+
 def dec2deg(dec_dms):
  """Converts declination in dms coordinates to degrees
 
@@ -138,6 +159,26 @@ def dec2deg(dec_dms):
  return d_m_s
 
 
+
+def deg2dec(dec_deg):
+ """Converts declination in degrees to dms coordinates
+
+ Parameters
+ ----------
+ dec_deg : float
+ dec in float format
+
+ Returns
+ -------
+ dms : str
+ """
+ DD = int(dec_deg)
+ dec_deg_abs = np.abs(dec_deg)
+ DD_abs = np.abs(DD)
+ MM = int((dec_deg_abs - DD_abs)*60)
+ SS = ((dec_deg_abs - DD_abs)*60)-MM
+ return "%s:%s:%s"%(DD,MM,SS)
+
 def unwrap(angle):
  """Unwrap angle greater than 180"""
  if angle > 180: