Wishlist/Todo page for ObjCryst++

Outside features

Examples

Make a few examples for each feature...

Compilation

Make the library and test programs compilable for other OS&configuration... So far tests have been made on Linux (x86/ppc), MacOS and windows (cygwin) Need to work on autoconf and automake (...)

Library Features

Check Results (****,*) (in constant progress)

Compare Structure Factors with the results of other programs (Jana,...) for a number of different spacegroups.

Save & restore objects (******,***) DONE, using XML

Move from atominfo+sglite to cctbx (******,***)

Change to the newest R. Grosse-Kunstleve library.

CIF Import & Export (****,*****)

Ability to export (and import) Crystallographic Info Files. The importing will be much harder, and is not a priority.

Export to other LSQ refinement programs(****,**)

Ability to export for other refinement programs (fullprof, gsas, shellx,...).

Anisotropic Thermic Factors (**,****)

Add support for anisotropic thermic factors. Spacegroup object should be able to indicate the permutations needed for symetrical atoms. Also determine the constraints between bij (eg beta12=beta13,etc...) The Interface has been written, but no code.

Powder Diffraction Background(**,**)

Use splines to interpolate background. Automagically determine background by filtering the spectrum. So far only linearly-interpolated background is available.

Intensity extraction from powder (*,***)

Extract F(hkl) from a powder spectrum. Not so interesting, there already are numerous programs to do this. But the advantage to have it embeded is the possibility to refine and refresh (recycle) these extracted intensities during an optimization.

Multi-phase (****,**) - DONE

Multiple phase for powder diffraction.

ZScatterer import(**,**)

Import Z-Matrix from file. Add the possibility to link two existing ZScatterer by linking terminal atoms.

Genetic Algorithm (****,***)

And compare the 3 different algorithms on several structures.

Texture (***,***)

Include texture parameters in PowderPattern. Optionnaly, allow multiple textured patterns (that would more difficult).

Internal Design of the Library

Vector & arrays (Blitz++ usage,...) (**,***)

Test again the use of the blitz++ library for vector computing.

Wild ideas (interesting possibilities, but no priority given)

Amorphous contribution

Add amorphous (disordered) contributions to powder spectrum. This could be easily added from the PowderPatternComponent base class.

Magnetic scattering

Add calculations for magnetic scattering (->scattering factors)

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