
RELEASE NOTES
=============


See README for information about Guppi's requirements and prerequisites.

Guppi 0.33.2  (released 25 Jan 2000)
============

This release addresses some problems with the build, based on the helpful
feedback I've gotten from the brave souls who tried out 0.33.1.

I've removed the dependency on guile-gtk and guile-gnome, due to a
number of problems with those libraries.

I've also fixed a number of minor bugs and tweaked some things to get
rid of compiler warnings.



Guppi 0.33.1  (released 21 Jan 2000)
============

OK, here is a very preliminary release, the first of the "guppi3"
series.  This version has just enough functionality to get some pretty
pictures up on the screen.

There is a very primitive form of point-and-click navigation of
scatter plots available in this version.  This a pure hack, and the code
will totally be replaced in future versions.  It doesn't really work quite
right, so don't be alarmed if strange things happen.

The navigation works as follows:
                Unshifted          With Shift Key
  Left Button : Zoom in            Brush to Style #1
 Right Button : Zoom out           Brush to Style #2
Middle Button : Recenter view      Brush to Style #3

Style #1 is the style that you can change with the style window.  You
have no control over the other two styles.

There are some sample data files in the sample-data directory.  Some of
these are pathological files that were made to test the importer.  Good
ones to play with are "random.data" and "trig.data".

Here are some known issues:

* Guppi will gracelessly abort if you try to make a scatter plot where the
  x-data set and y-data set have different sizes.

* Certain things in the scatter plot style window don't work properly.

* Certain aspects of a scatter plot's style can't currently be adjusted
  in the scatter plot style window.

* There is a serious performance hit associated with using size-gradients
  in scatter plots.  (There are many optimizations that could speed this
  up, but this isn't really high on my priority list right now.)

* Right now, certain parts of Guppi scale very poorly.  For example,
  loading a data set with 10^5 elements is painfully slow and
  consumes massive amounts of memory.  This will be fixed.

* Plot axes are not yet supported.  Layed plots are not yet supported.
  Printing is not yet supported.  Saving is not yet supported.  In fact,
  almost everything is not yet supported.






