Redoing the r13221-13223 merge in the actual trunk now. This updates trunk to the setup_refactoring branch (however, coords, pysynphot, and pywcs are still being pulled from the astrolib setup_refactoring branch. Will have to do that separately then update the svn:externals)

git-svn-id: http://svn.stsci.edu/svn/ssb/stsci_python/stsci_python/trunk/stwcs@13225 fe389314-cf27-0410-b35b-8c050e845b92

1 files changed, 0 insertions, 451 deletions

diff --git a/wcsutil/altwcs.py b/wcsutil/altwcs.py
deleted file mode 100644
index d250b52..0000000
--- a/wcsutil/altwcs.py
+++ /dev/null
@@ -1,451 +0,0 @@
-from __future__ import division # confidence high
-import os
-import string
-
-import numpy as np
-import pywcs
-import pyfits
-
-altwcskw = ['WCSAXES', 'CRVAL', 'CRPIX', 'PC', 'CDELT', 'CD', 'CTYPE', 'CUNIT',
-            'PV', 'PS']
-
-# file operations
-def archiveWCS(fname, ext, wcskey=" ", wcsname=" ", clobber=False):
-    """
-    Copy the primary WCS to the hader as an alternate WCS
-    with wcskey and name WCSNAME. It loops over all extensions in 'ext'
-
-    Parameters
-    ----------
-    fname:  string or pyfits.HDUList
-            a file name or a file object
-    ext:    an int, a tuple, a python list of integers or a python list of tuples (e.g.('sci',1))
-            fits extensions to work with
-    wcskey: string "A"-"Z" or " "
-            if " ": get next available key if wcsname is also " " or try
-            to get a key from WCSNAME value
-    wcsname: string
-             Name of alternate WCS description
-    clobber: boolean
-             if Ture - overwrites a WCS with the same key
-
-    See Also
-    --------
-    wcsutils.restoreWCS: Copy an alternate WCS to the primary WCS
-
-    """
-
-    if isinstance(fname, str):
-        f = pyfits.open(fname, mode='update')
-    else:
-        f = fname
-
-    if not parpasscheck(f, ext, wcskey, wcsname):
-        closefobj(fname, f)
-        return
-
-    if isinstance(ext, int) or isinstance(ext, tuple):
-        ext = [ext]
-    
-    wcsext = 0
-    eindx = 0
-    for e in f:
-        if 'extname' in e.header and 'sci' in e.header['extname'].lower():
-            wcsext = eindx
-            break
-        eindx += 1
-
-    if wcskey == " ":
-        # try getting the key from WCSNAME
-        if not wcsname.strip():
-            wkey = next_wcskey(f[wcsext].header)
-        else:
-            wkey = getKeyFromName(f[wcsext].header, wcsname)
-    else:
-        if wcskey not in available_wcskeys(f[wcsext].header):
-            # reuse wcsname
-            if not wcsname.strip():
-                wcsname = f[wcsext].header["WCSNAME"+wcskey]
-                wname = wcsname
-                wkey = wcskey
-            else:
-                wkey = wcskey
-                wname = wcsname
-        else:
-            wkey = wcskey
-            wname = wcsname
-
-    for e in ext:
-        w = pywcs.WCS(f[e].header, fobj=f)
-        hwcs = w.to_header()
-        wcsnamekey = 'WCSNAME' + wkey
-        f[e].header.update(key=wcsnamekey, value=wcsname)
-        if w.wcs.has_cd():
-            pc2cd(hwcs)
-        for k in hwcs.keys():
-            key = k[:7] + wkey
-            f[e].header.update(key=key, value=hwcs[k])
-        #norient = np.rad2deg(np.arctan2(hwcs['CD1_2'],hwcs['CD2_2']))
-        #okey = 'ORIENT%s' % wkey
-        #f[e].header.update(key=okey, value=norient)
-    closefobj(fname, f)
-
-def restoreWCS(f, ext, wcskey=" ", wcsname=" ", clobber=False):
-    """
-    Copy a WCS with key "WCSKEY" to a primary WCS
-
-    Reads in a WCS defined with wcskey and saves it as the primary WCS.
-    If clobber is False, writes out new files whose names are the original
-    names with an attached 3 character string  _'WCSKEY'_.
-    Otherwise overwrites the files. Goes sequentially through the list of extensions
-    The WCS is restored from the 'SCI' extension but the primary WCS of all
-    extensions with the same EXTVER are updated.
-
-
-    Parameters
-    ----------
-    f:       string or pyfits.HDUList object
-             a file name or a file object
-    ext:     an int, a tuple, a python list of integers or a python list
-             of tuples (e.g.('sci',1))
-             fits extensions to work with
-    wcskey:  a charater
-             "A"-"Z" - Used for one of 26 alternate WCS definitions.
-             or " " - find a key from WCSNAMe value
-    wcsname: string (optional)
-             if given and wcskey is " ", will try to restore by WCSNAME value
-    clobber: boolean
-             A flag to define if the original files should be overwritten
-
-    See Also
-    --------
-    wcsutil.archiveWCS - copy the primary WCS as an alternate WCS
-
-    """
-    if isinstance(f, str):
-        if clobber:
-            fobj = pyfits.open(f, mode='update')
-        else:
-            fobj = pyfits.open(f)
-    else:
-        fobj = f
-
-    if not parpasscheck(fobj, ext, wcskey, wcsname):
-        closefobj(f, fobj)
-        return
-
-    if isinstance(ext, int) or isinstance(ext, tuple):
-        ext = [ext]
-
-    if not clobber:
-        name = (fobj.filename().split('.fits')[0] + '_%s_' + '.fits') %wcskey
-    else:
-        name = fobj.filename()
-
-    if wcskey == " ":
-        if wcsname.strip():
-            wkey = getKeyFromName(fobj[1].header, wcsname)
-            if not wkey:
-                print 'Could not get a key from wcsname %s .' % wcsname
-                closefobj(f, fobj)
-                return
-    else:
-        if wcskey not in wcskeys(fobj[1].header):
-            print "Could not find alternate WCS with key %s in this file" % wcskey
-            closefobj(f, fobj)
-            return
-        wkey = wcskey
-
-    for e in ext:
-        try:
-            extname = fobj[e].header['EXTNAME'].lower()
-        except KeyError:
-            continue
-        #Restore always from a 'SCI' extension but write it out to 'ERR' and 'DQ'
-        if extname == 'sci':
-            sciver = fobj[e].header['extver']
-            try:
-                nwcs = pywcs.WCS(fobj[e].header, fobj=fobj, key=wkey)
-            except KeyError:
-                print 'restoreWCS: Could not read WCS with key %s in file %s,  \
-                extension %d' % (wkey, fobj.filename(), e)
-                closefobj(f, fobj)
-                return #raise
-            hwcs = nwcs.to_header()
-
-            if nwcs.wcs.has_cd():
-                pc2cd(hwcs, key=wkey)
-            for k in hwcs.keys():
-                key = k[:-1]
-                if key in fobj[e].header.keys():
-                    fobj[e].header.update(key=key, value = hwcs[k])
-                else:
-                    continue
-            if wcskey == 'O' and fobj[e].header.has_key('TDDALPHA'):
-                fobj[e].header['TDDALPHA'] = 0.0
-                fobj[e].header['TDDBETA'] = 0.0
-            if fobj[e].header.has_key('ORIENTAT'):
-                norient = np.rad2deg(np.arctan2(hwcs['CD1_2'+'%s' %wkey],hwcs['CD2_2'+'%s' %wkey]))
-                fobj[e].header.update(key='ORIENTAT', value=norient)
-        elif extname in ['err', 'dq', 'sdq', 'time', 'samp']:
-            cextver = fobj[e].header['extver']
-            if cextver == sciver:
-                for k in hwcs.keys():
-                    key = k[:-1]
-                    fobj[e].header.update(key=key, value = hwcs[k])
-                if fobj[e].header.has_key('ORIENTAT'):
-                    norient = np.rad2deg(np.arctan2(hwcs['CD1_2'+'%s' %wkey],hwcs['CD2_2'+'%s' %wkey]))
-                    fobj[e].header.update(key='ORIENTAT', value=norient)
-        else:
-            continue
-
-    if not clobber:
-        fobj.writeto(name)
-    closefobj(f, fobj)
-
-def deleteWCS(fname, ext, wcskey=" ", wcsname=" "):
-    """
-    Delete an alternate WCS defined with wcskey.
-    If wcskey is " " try to get a key from WCSNAME.
-
-    Parameters
-    ----------
-    fname:   sting or a pyfits.HDUList object
-    ext:     an int, a tuple, a python list of integers or a python list of tuples (e.g.('sci',1))
-             fits extensions to work with
-    wcskey:  one of 'A'-'Z' or " "
-    wcsname: string
-             Name of alternate WCS description
-    """
-    if isinstance(fname, str):
-        fobj = pyfits.open(fname, mode='update')
-    else:
-        fobj = fname
-
-    if not parpasscheck(fobj, ext, wcskey, wcsname):
-        closefobj(fname, fobj)
-        return
-
-    if isinstance(ext, int) or isinstance(ext, tuple):
-        ext = [ext]
-
-    # Do not allow deleting the original WCS.
-    if wcskey == 'O':
-        print "Wcskey 'O' is reserved for the original WCS and should not be deleted."
-        closefobj(fname, fobj)
-        return
-
-    if wcskey == " ":
-        # try getting the key from WCSNAME
-        if wcsname == " ":
-            print "Could not get a valid key from header"
-            closefobj(fname, fobj)
-            return
-        else:
-            wkey = getKeyFromName(fobj[1].header, wcsname)
-            if not wkey:
-                print 'Could not get a key: wcsname "%s" not found in header.' % wcsname
-                closefobj(fname, fobj)
-                return
-    else:
-        if wcskey not in wcskeys(fobj[1].header):
-            print "Could not find alternate WCS with key %s in this file" % wcskey
-            closefobj(fname, fobj)
-            return
-        wkey = wcskey
-
-    prexts = []
-    for i in ext:
-        hdr = fobj[i].header
-        try:
-            w = pywcs.WCS(hdr, fobj, key=wkey)
-        except KeyError:
-            continue
-        hwcs = w.to_header()
-        if w.wcs.has_cd():
-            pc2cd(hwcs, key=wkey)
-        for k in hwcs.keys():
-            del hdr[k]
-            #del hdr['ORIENT'+wkey]
-        prexts.append(i)
-    if prexts != []:
-        print 'Deleted all instances of WCS with key %s in extensions' % wkey, prexts
-    else:
-        print "Did not find WCS with key %s in any of the extensions" % wkey
-    closefobj(fname, fobj)
-
-#header operations
-def wcskeys(header):
-    """
-    Returns a list of characters used in the header for alternate
-    WCS description with WCSNAME keyword
-
-    Parameters
-    ----------
-    hdr: pyfits.Header
-    """
-    assert isinstance(header, pyfits.Header), "Requires a pyfits.Header object as input"
-    names = header["WCSNAME*"]
-    return [key.split('WCSNAME')[1].upper() for key in names.keys()]
-
-def wcsnames(header):
-    """
-    Returns a dictionary of wcskey: WCSNAME pairs
-
-    Parameters
-    ----------
-    header: pyfits.Header
-    """
-    names = header["WCSNAME*"]
-    d = {}
-    for c in names:
-        d[c.key[-1]] = c.value
-    return d
-
-def available_wcskeys(header):
-    """
-    Returns a list of characters which are not used in the header
-    with WCSNAME keyword. Any of them can be used to save a new
-    WCS.
-
-    Parameters
-    ----------
-    header: pyfits.Header
-    """
-    assert isinstance(header, pyfits.Header), "Requires a pyfits.Header object as input"
-    all_keys = list(string.ascii_uppercase)
-    used_keys = wcskeys(header)
-    try:
-        used_keys.remove("")
-    except ValueError:
-        pass
-    [all_keys.remove(key) for key in used_keys]
-    return all_keys
-
-def next_wcskey(header):
-    """
-    Returns next available character to be used for an alternate WCS
-
-    Parameters
-    ----------
-    header: pyfits.Header
-    """
-    assert isinstance(header, pyfits.Header), "Requires a pyfits.Header object as input"
-    allkeys = available_wcskeys(header)
-    if allkeys != []:
-        return allkeys[0]
-    else:
-        return None
-
-def getKeyFromName(header, wcsname):
-    """
-    If WCSNAME is found in header, return its key, else return
-    None. This is used to update an alternate WCS
-    repeatedly and not generate new keys every time.
-
-    Parameters
-    ----------
-    header:  pyfits.Header
-    wcsname: str
-             Value of WCSNAME
-    """
-    wkey = None
-    names = wcsnames(header)
-    for item in names.items():
-        if item[1].lower() == wcsname.lower():
-            wkey = item[0]
-            break
-    return wkey
-
-def pc2cd(hdr, key=' '):
-    """
-    Convert a CD PC matrix to a CD matrix.
-
-    WCSLIB (and PyWCS) recognizes CD keywords as input
-    but converts them and works internally with the PC matrix.
-    to_header() returns the PC matrix even if the i nput was a
-    CD matrix. To keep input and output consistent we check
-    for has_cd and convert the PC back to CD.
-
-    Parameters
-    ----------
-    hdr: pyfits.Header
-
-    """
-    for c in ['1_1', '1_2', '2_1', '2_2']:
-        try:
-            val = hdr['PC'+c+'%s' % key]
-            del hdr['PC'+c+ '%s' % key]
-        except KeyError:
-            if c=='1_1' or c == '2_2':
-                val = 1.
-            else:
-                val = 0.
-        hdr.update(key='CD'+c+'%s' %key, value=val)
-    return hdr
-
-def parpasscheck(fobj, ext, wcskey, wcsname, clobber=True):
-
-    if not isinstance(fobj,pyfits.HDUList):
-        print "First parameter must be a fits file object or a file name."
-        return False
-    try:
-        assert (fobj.fileinfo(0)['filemode'] == 'update')
-    except AssertionError:
-        print "First parameter must be a file name or a file object opened in 'update' mode."
-        return False
-
-    if not isinstance(ext, int) and not isinstance(ext, tuple) \
-       and not isinstance(ext, list):
-        print "Ext must be integer, tuple, a list of int extension numbers, \
-        or a list of tuples representing a fits extension, for example ('sci', 1)."
-        return False
-
-    if len(wcskey) != 1:
-        print 'Parameter wcskey must be a character - one of "A"-"Z" or " "'
-        return False
-
-    wcsext = 0
-    eindx = 0
-    for e in fobj:
-        if 'extname' in e.header and 'sci' in e.header['extname'].lower():
-            wcsext = eindx
-            break
-        eindx += 1
-        
-
-    if wcskey == " ":
-        # try getting the key from WCSNAME
-        """
-        if wcsname == " " or wcsname == "":
-            #wkey = next_wcskey(f[1].header)
-            #if not wkey:
-            #    print "Could not get a valid key from header"
-            return False
-        """
-        if wcsname.strip():
-            wkey = getKeyFromName(fobj[wcsext].header, wcsname)
-            if wkey and not clobber:
-                print 'Wcsname %s is already used.' % wcsname
-                print 'Use "wcsutil.next_wcskey" to obtain a valid wcskey'
-                print 'or use "clobber=True" to overwrite the values.'
-                return False
-    else:
-        if wcskey not in available_wcskeys(fobj[wcsext].header):
-            if clobber==False:
-                print 'Wcskey %s is already used.' % wcskey
-                print 'Use "wcsutil.next_wcskey" to obtain a valid wcskey'
-                print 'or use "clobber=True" to overwrite the values.'
-                return False
-
-
-    return True
-
-def closefobj(fname, f):
-    """
-    Functions in this module accept as input a file name or a file object.
-    If the input was a file name (string) we close the object. If the user
-    passed a file object we leave it to the user to close it.
-    """
-    if isinstance(fname, str):
-        f.close()