| Re: Compiling IDL ... ever likey ? [message #5730 is a reply to message #5518] |
Fri, 02 February 1996 00:00   |
David Ritscher
Messages: 30
Registered: August 1995
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Member |
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A few thoughts about the (ever-recurring) IDL compiler discussion:
1. One exists for internal use at RSI. When one makes a big
application for redistribution they can create an executable version of
of your application for you. This is quite expensive. The Visible
Human CD is a demonstration of this approach.
2. MATLAB has recently released a compiler.
3. AVS (Advanced Visual Systems) seems to be making some good progress
in this direction. You can build any of your own routines (in C, C++,
etc.) into their system. Here in Germany they have a run-time
licensing which is very cheap (something like $30) within any of the
universities, and still pretty cheap (about $100) in industry. It's
much more expensive when one needs the network editor available. They
are headed in the object-oriented direction, at least in a certain
sense of the word, which I also find appealing. They seem to do the
graphics stuff quite well, but I still prefer IDL/PVWave for pure
mathematical work.
4. There are run-time versions of IDL and PV-Wave available.
(with run-time licensing). Something that both lack is the capability
to also protect (i.e., license) your application.
5. I often hear comments that 'it would be impossible to make an IDL
compiler, for reason X.' However, I think it's relatively clear that
the full functionality of IDL or PVWave can be packed into a library,
callable from C, etc. There would be, for example, a function
'idl_plot();' or 'pvwave_plot();' that would function exactly like the
current plot function. The question is how much of the interpreter to
bring along for this purpose, vs. how much do you have to handle all
the data manipulation yourself. It would be important to bring along
the IDL/PVWave memory allocation system, so that the normal
manipulation of data is possible (extract of parts of arrays, the
WHERE function, etc.).
--
David Ritscher
Raum 47.2.279
Zentralinstitut fuer Biomedizinische Technik
Albert-Einstein-Allee 47
Universitaet Ulm
D-89069 ULM
Germany
Tel: ++49 (731) 502 5313
Fax: ++49 (731) 502 5343
or 5317
internet: david.ritscher@zibmt.uni-ulm.de
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