| Re: FORTRAN to IDL translation [message #17989] |
Tue, 23 November 1999 00:00 |
Michael Asten
Messages: 53
Registered: March 1999
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Member |
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I was faced with a similar task when I needed a procedure to compute modified
bessel functions of complex argument - idl routines happily accept a complex
argument, but only operate on the real part (*#!). In the end I did a
line-for-line translation from fortran and found it quite straightforward, since
idl allows horrible programming features common in F77 such as goto statements
and line-labels. Without optimising loops, I found that the speed comparison on
the maths was
fortran : idl = 3 : 11 seconds.
The big challenge is likely to be the rewrite to take advantage of array
processing - good luck.
Regards,
Michael Asten
Liam Gumley wrote:
> Henrik E. Nilsen <Henrik.Nilsen@fi.uib.no> wrote in message
> news:3836BDF2.9C6F44E2@fi.uib.no...
>> I have a small Fortran program (1000 lines) that I would like to translate
>> to IDL. I've looked arround the net for a translation utility, but can't
>> find one. Does anyone know if there is such a thing? I'm now looking at
>> making a simple utility like this myself. My aim is to make an IDL
>> routine that can translate Fortran code line-by-line. I expect to
>> translate about 80-90% of the code this way, leaving the rest for manual
>> translation. Finally, the code must be restructured some (maually)to take
>> advantage of IDL functions (Array manipulation, objects, etc.) Any Ideas?
>
> There is no utility to transform FORTRAN to IDL. Good luck on constructing
> one yourself. Just make sure you don't translate all those FORTRAN loops to
> IDL loops :-)
>
> Cheers,
> Liam.
> http://cimss.ssec.wisc.edu/~gumley
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| Re: FORTRAN to IDL translation [message #18019 is a reply to message #17989] |
Sat, 20 November 1999 00:00  |
Liam Gumley
Messages: 473
Registered: November 1994
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Senior Member |
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Henrik E. Nilsen <Henrik.Nilsen@fi.uib.no> wrote in message
news:3836BDF2.9C6F44E2@fi.uib.no...
> I have a small Fortran program (1000 lines) that I would like to translate
> to IDL. I've looked arround the net for a translation utility, but can't
> find one. Does anyone know if there is such a thing? I'm now looking at
> making a simple utility like this myself. My aim is to make an IDL
> routine that can translate Fortran code line-by-line. I expect to
> translate about 80-90% of the code this way, leaving the rest for manual
> translation. Finally, the code must be restructured some (maually)to take
> advantage of IDL functions (Array manipulation, objects, etc.) Any Ideas?
There is no utility to transform FORTRAN to IDL. Good luck on constructing
one yourself. Just make sure you don't translate all those FORTRAN loops to
IDL loops :-)
Cheers,
Liam.
http://cimss.ssec.wisc.edu/~gumley
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