I've just submitted a new version of ucd planes and ucd line in the directory
jon_cox.  Here's the README_1st file ...

Here's the latest versions of ucd line and ucd planes.  These versions are very
different from the ones currently one the site.  It probably would be a good
idea for you to keep the old versions about somewhere - as I don't!  I've made
quite a few modifications to the code structure but thats not why I'm
resubmitting them.  The chief reason is that I have added some features that
have been commonly requested (most recently 2D contours for Ian Currington).
Here's a summary of the main changes.

to ucd planes ...

1) Support for the generation of 2D contours has been added.  Contour lines can
   be superimposed on the output of any of the probes inc. the 3D graph.  The
   range of values used can be set using ucd legend in a similar manner to ucd
   isolines.

2) Sampled region can be output as a UCD structure consisting of triangular
   elements.

3) A default layout is included in the description function.  There are now too
   many widgets to fit comfortably onto a single control panel.  The default
   layout splits the widgets into three subpanels.

4) Parameter modifications are interpreted more intelligently to avoid
   needlessly regenerating the sample when it is not needed.

5) Updated documentation and networks.

and to both of them ...

6) Code is ANSI C (therefore requires AVS5).

7) Modules have been restructured to make them cooperative and reentrant.  They
   are now designed to be compiled in a single executable.  If you want to
   split them up on the FTP site refer to the README file to find which files
   are required for each module.

Hope everybody finds them useful,

Jon.

Jonathan Cox.                              Email coxjp@cs.man.ac.uk
IT 301, Department of Computer Science,
University of Manchester,                  Tel: (+44) (0)61-275-6270
Manchester.  M13 9PL.  England.            Fax: (+44) (0)61-275-6280