11 April 2001

New POUDRIX program (August 1999)

New features :

Incorporates GETSPEC (Windows port of U.D.Altermatt and I.D.Brown's 
Spacegroup Software) which allows the user to spacegroups in non-standard
settings as well as by Herman-Maug or Hall symbols; and Spacegroup number.


08-16-99
New POUDRIX program (August 1999)

New features :

-Can calculate a diagram for a multi-wavelengths source (4 maxi)
-Can enter crystal data in several formats (ASCII) :
	Poudrix
	Shelx
	PowderCell
	Lazy-Pulverix
If the Space Group is not read in the file, the user must select 
it in the list displayed on the screen.
-Can enter observed diagrams in several formats :
	Poudrix (Binary)
	Bruker (Binary)
	Philips (Binary)
	Rietveld (ASCII)
	CPI (ASCII)
-Simulated patterns can be saved in an Poudrix binary 
    format (*.sim. In fact false Bruker format).
-Can display diagrams and results in q, 2q and Q=4pSin(q/l) 
     spaces (not in D space).
-Can overlay multiple calculated (saved in *.sim file) 
     or observed patterns.
-Can display the difference between the calculated and observed 
     diagram or between two observed diagrams.


Tricks

-To enter the wavelengths of a multi-components source, select 
  the line « Multiple WL » of the anode Listbox and type the 
  composition of the spectrum in the appearing window.
-To make a zoom, drag a rectangle in the graphic windows. 
  To « unzoom », click on the right button.
-To identify a peak on the pattern, bring the cursor on this peak 
   and click with the left button. By clicking on a line of the list 
   of results (yellow), the corresponding peak in the diagram is marked.
-To insert a new atom in the grid of atom data, double click on a line. 
   A blank line is created and it is possible to type the new position.
-To erase an atom on the grid, delete his name and press the Tab key.


Not yet implemented :

-Improvement of the presentation of the printed patterns 
   (Colors Dash lines, etc..).
-English Help File (the most difficult for me !)
-Other data formats (on request ?)