[PyMCA] ANN PyMCA 4.2.4 Released

[V. A. S. <so...@es...>]

Hi!

A new release of PyMca is available.

CHANGES

- Add ESRF Xia Correct to the Tools menu.
   This is an ESRF specific tool implementing dead time corrections.
    It is of no use on data collected outside the ESRF.

- ROI Imaging.

   This tool has been refactored to simplify future developments and it 
stops being Qt3 compatible. That should not be an issue because most 
developers are jumping on the Qt4 wagon.

   From the user point of view, you will notice that your image selections 
will not be reset each time you change image.

  You can save the ROI image in data format together with the mask used for 
selection.

   This versionimplements basic principal component analysis mapping. You 
can generate the images associated to the principal components and perform 
image selections on them You will find the access to it by pressing a 
selection button on top of the stack image.

   Support AIFIRA and SupaVisio maps. These are formats used by some 
PIXE/PIGE/RBS people so they can use the imaging capabilities of PyMca.

- Advanced Fit changes.

   Improved transmission geometry support. To define a transmission 
geometry, just enter a negative value for the incoming beam angle. The rest 
should be self-explanatory.

   User can specify the scattering angle in the fit configuration.

   Support "funny type" attenuators. These are attenuators that have a hole 
or that do not fully intercept the fluorescent beam in its patch to the 
detector.

   The linear fit was rising a Singular Matrix error if the user asked to 
fit a peak outside of the fitting region. The code will fix those peaks 
area to 0.

- Simplify access to binding energies by putting them in a separate ASCII file.

- Add anchors and smoothing information to the HTML reports.

BUGS FIXED

- Correct a bug on the reconstruction of the chisq image when using the
multiple processes batch option. The image was qualitatively correct, but 
it was giving negative numbers.

- Correct a bug preventing the generation of HTML reports in batch mode if 
scattering peaks where fitted.

- Correct a specfile compilation issue with some gcc versions.

- Suppress shared memory compilation warnings.


As you can appreciate, this version incorporates several interesting new 
features. I hope you will enjoy them.

Armando