TFIT Release Notes

Version 1.2, 10 Mar 2008: r394

This release restores the ability to use multiple kernels in first
pass processing, and eliminates the printing of informational messages
and unimportant warnings during the convolve stage.

Changes include:
  - Cleaned up some memory leaks & modified string handling in the
  fitter stage; also disabled the ability to run the fitter with
  command-line arguments.
  - Turned off PyFITS warnings during the convolution stage (they're
  turned back on afterwards); messages are no longer printed for
  acceptable anomalies.
  - Added a posframe parameter to the parameter file that specifies
  whether the lookup file contains pixel coordinates in the hires
  frame or the lores frame. If the former, multikern uses the cutoutcat;
  if the latter, it uses the lrfcat. Multikern now creates the output
  template directory if it doesn't already exist, and does not need a
  flag file in order to run. 
  - Made tfit_diags.collage more robust against missing template files
  or templates that for some reason don't fit properly into the
  collage: a message is printed & the task continues, instead of
  aborting. 
  - Corrected some errors in the utility scripts section of the user's
  guide; updated user's guide for v1.2.

Version 1.1, 24 Jan 2008: r353

This release provides the ability to save templates (cutouts convolved
with the kernel) at the pixel resolution of the HR image. It also
includes a utility script that can use these templates and the cutouts
to construct scaled collages useful for PSF investigations.

Changes include:
  - added parameters to tfit_pipeline.param to specify saving the
  templates at high resolution
  - a new keyword TBINFACT is now written to the template header,
  specifying the binning factor used when the template was created.
  - made pipeline more robust when optional parameters are missing
  from the .param file
  - added utility script psf_collage.py to build matching collages from
  the cutouts and the hr templates
  - installed the utility script make_collage.py, that can make a
  collage without re-running the entire diagnostics stage.
  - various internal improvements (transparent to user) in path and 
catalog handling


Known issues include:
  - Use of multiple kernels in first pass processing is presently
  broken (ticket #11). This will be fixed in the next release as part
  of the planned enhancements in ticket #80.
  - Not all path handling is platform independent (ticket #78). This
  ticket was closed without being fixed: problems only arise on
  Windows, and we do not plan to provide support for this package on Windows.



Version 1.0, 21 Dec 2007: r322

This release corresponds closely to the version of the software
described in Laidler et al. 2007, PASP 119:1325.

Changes include:
  - the numpy array package is now used in place of the deprecated
  numarray package
  - a new idmap diagnostic product is now produced by the diags stage
  - additional utility scripts are provided
  - various internal improvements (transparent to user) in path and
  catalog handling

Known issues include:
  - Use of multiple kernels in first pass processing is presently
  broken (ticket #11). 
  - Not all path handling is platform independent (ticket #78)

TFIT is managed as a component of the AstroLib project:
http://astropy.scipy.org/astropy/astrolib/wiki