2002-04-13

	* Oh, my... it's already 5 months since I open this file...!!
	Tsk, tsk, too bad...  OK, anyway, there are some important changes,
	so to the point:

	* Export models are introduced.  Instead of exporting the values
	(x,y) of the selected data points in a curve, we might be
	interested in some functions of these values, in general (f(x),
	g(y)).  Now four models can be used for each curve: a) (x,y); b)
	(f(x),y); c) (x, g(y)); and d) (f(x), g(y)).  In the models, f and
	g are selected by the user from a set of functions compiled apart
	in shared libraries, and loaded at run-time.

	* Plugins are implemented.  This complements the above point:
	apart from the functions included to be used for the export
	models, the user can create their own, which will be afterwards
	compiled, with the help of a simple script, into a shared library,
	to be loaded at run-time.  The provided functions are already
	implemented using this methodology.  

	Plugin functions can be created by editing a copy of the simple
	template provided, myplugin.cpp, or from QScanPlot.  See the
	documentation for more information.
	
	* Preferences are integrated into the system. I use a class called
	Preferences, by David Johnson.  It uses XML and DOM.  The
	preferences are saved in a file $HOME/.qscanplotrc

	* Customization is introduced, with the help of the preferences.
	The settings now available to the user are the background color,
	the GUI style, the font, the initial zoom when importing an image,
	the window size of the application, the appearance or not of the
	splash window at the start-up, and the plugins directory.

	* Again, some bugs were found when exporting data to files.  Those
	are solved.  In addition, now the colors are stored in the common
	#RRGGBB format

	* Dialogs look now nicer (well, they should).

	* Some more minor corrections in the code.

	* Documentation improved, hopefully.

2001-11-04

	* Once upon a time... OK, long after the release of the last beta,
	the *NEW BETA* version, 0.3, is available for downloading.  This
	version does not mean a big step since the last one, but still you
	should get it. A lit of bugs solved / features added follows:

	* Bugs in Exporting data with some predefined formats are
	solved. Some minor bugs are corrected, some more are missed, and
	even some new are added!

	* Dialogs now are more consistently built. There was a
	misunderstanding of how to use layouts in Qt Designer. Now
	everything goes smoother.
	
	* Numeric formats: Finally the user defined numeric format for the
	data to be exported does work.

	* Preview of the data to be exported (in the selected format) is
	implemented. The sequence can be: Export Setup - Export Preview -
	Export.

	* Documentation improved (I hope).
	
	* Some new toolbar buttons. The menus have now a "TearOffHandle".
	Never heard about that? OK, you'll see it.

2001-09-26
  
	* Third BETA available. New version is 0.2, still in BETA phase.
	Documentation a bit outdated.

	* Grids are integrated in the system: the user can define grids in
	the X axis (x_min, x_max and number of intervals or interval
	width). At export time, the user can select a grid as the base for
	the X values.

	* Included Selection of Interpolator for exporting data. Still
	some problems can appear, but a basic framework has been
	established.
  
2001-09-12  

	* Problem found: when one opens "Edit Axes/Curves" dialog, exits
	with "Cancel", and then try it again, the program crashes. I dunno
	what the hell happens here, so I removed this possibility, i.e.,
	when you press double click in an entry in this dialog (and a
	second dialog opens), you will actually edit the objet (unless you
	press in this second dialog the "Cancel" button, which DOES work).

	* Solved problem with "Options|Sort points". The problem was that
	once you export some curves and this is ON, the points remain
	sorted. Now a copy of the list of points is sorted, and then
	destroyed, in the Export routine.

2001-09-06  

	* Second BETA available. New/close document already
	operative. Some minor bugs in distribution were corrected.

2001-09-03  

	* First BETA version almost ready. Still, handling of new
	documents, closing of documents and the like is not working. Also,
	there's no way to delete Axes Systems, Curves or even points,
	although they can be moved in the image or edited (in the case of
	axis points).