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Have you thought of a more powerful method or useful way to work with Cloudy?  If so, please contribute to this page!  Send email to me at  here

An Interactive version of Cloudy

Kevin Volk has written an X11 tool to allow interactive creation of Cloudy command files and their execution. This program, named cloudygui, is still in the early phases of production. However the code is at the point where one can use it to read in an existing Cloudy command file and run the program with the capability to see the progress of the code as it executes and to look at the results in the midst of the execution.  Kevin's web site gives further details.

Perl scripts to generate a grid of models, then extract emission line intensities.  

I usually produce grids of Cloudy models by writing a new main routine and calling the code as a subroutine.  An alternative is to leave the code as is, and generate a grid by writing a shell script.  This may be easier if you know Perl, or would rather not alter Cloudy itself.   Two scripts were contributed by Aaron Barth.   The first generates grids of models.   The second extracts lines from this grid.

Aaron writes "If someone is interested in pursuing this approach but doesn't previously know any perl, I'd recommend picking up a copy of "Learning Perl" by Schwartz & Christiansen (O'Reilly & Associates), which gives a very clear tutorial."

Henrik Spoon's Mice

A user-friendly package of IDL routines that would facilitate the use of the photo-ionization code Cloudy.  The package currently available offers the following functionalities:
bulletEasy access to a large set of stellar model SEDs
bulletEasy integration of these SEDs into Cloudy input files
bulletEasy computation of grids of Cloudy models
bulletEasy visualisation of grid results
bulletEasy visualisation of radial (zonal) output

How to drive a C code from Fortran

It is possible to drive the current version of Cloudy, which is a C code, from existing Fortran programs without too much effort.  A good approach is to use the cfortran.h header file described here

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Last changed 04/05/03.