jdavies-st

from . import extract
from .setup_utils import pyspextool_setup, set_paths, set_instrument

# Is there a reason for absolute imports below and relative imports above?
from pyspextool.instrument_data.spex_dir.spex import read_fits as _read_fits_spex
from pyspextool.instrument_data.uspex_dir.uspex import read_fits as _read_fits_uspex


instrument = None

jdavies-st

class CompoundConverter(TransformConverter):
    _tags_add = {
        "http://asdf-format.org/schemas/transform/add-2.0.0",
        "tag:stsci.edu:asdf/transform/add-1.2.0",
        "tag:stsci.edu:asdf/transform/add-1.1.0",
        "tag:stsci.edu:asdf/transform/add-1.0.0",
    }
    _tags_subtract = {
        "http://asdf-format.org/schemas/transform/subtract-2.0.0",
        "tag:stsci.edu:asdf/transform/subtract-1.2.0",

jdavies-st

# This is to show how one might represent two linear WCS pipelines that share a step in ASDF using GWCS

# The transform comes from JWST NIRCam imaging.

from jwst import datamodels
import asdf
from copy import deepcopy


# Use some existing NIRCam Imaging data which has a GWCS object in it

jdavies-st

>>> from astropy.modeling import models, fitting                                
>>> import asdf                                                                 
>>> import numpy as np                                                          
>>> x = np.random.random(100)                                                   
>>> y = np.random.random(100)                                                   
>>>                                                                             
>>> mymodel = models.Polynomial1D(degree=3) 
>>> fitter = fitting.LevMarLSQFitter() 
>>> myfit = fitter(mymodel,x,y)                                                   
WARNING: Model is linear in parameters; consider using linear fitting methods. [astropy.modeling.fitting]