Re: XForms: forking a child

Luis IBANEZ (luisiban@club-internet.fr)
Thu, 28 May 1998 10:17:29 +0200

# To subscribers of the xforms list from Luis IBANEZ <luisiban@club-internet.fr> :

Hi,

I don't know how to do it,
but I know someone who knows....

----------------------------------

I think that a similar approach is done by

"xfpovray" with respect to "POV-ray".

POV-ray needs a lot of input parameters to
do its wonderful ray tracing images.

the guys of xfpovray have built a GUI to povray.
All input fields are managed by xfpovray, and real work
is done by povray in background.

------------- parameters ------------
| xfpovray |------------>| POV-ray |
------------- ------------

Sources of xfpovray can be found in the links of:

http://www.povray.org

Perhaps the difference is that there is not a two-way
communication, that is, povray doesn't send information
back to xfpovray.

----------------------------------------

A second example is the nice text editor LyX which does
a Xforms GUI to LaTeX. It manages user edition and
can generate latex files to be procesed in background by
latex.

It calls ghostscript too in background to do the
rendering of inserted graphics and images. In this case
they should have a real two-way communication.

A pipe managing is done between LyX and xdvi to
update on-screen document rendering.

LyX sources can be found at

http://www.via.ecp.fr/lyx

----------------------------------------

A look at this code could be illuminating...

________________________________________________________________

Luis Eduardo IBANEZ

PhD Student
Departement Image et Traitement de l'Information
Ecole Nationale Superieure des Telecommunications de Bretagne
Technopole de Brest-Iroise BP 832, 29285 BREST - FRANCE

tel (33)2.98.00.13.57
fax (33)2.98.00.10.98
e-mail: luis.ibanez@enst-bretagne.fr
e-mail: luisiban@club-internet.fr

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