comp.lang.idl-pvwave archive: archive » Re: How to call fortran subroution?

Home » Public Forums » archive » Re: How to call fortran subroution?

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: How to call fortran subroution? [message #24720 is a reply to message #24714]

Sat, 14 April 2001 18:01

web
Messages: 24
Registered: March 2001

Junior Member

Yes, I know that. I have read the example more then 5 times,but I have
failed for many times too.Who can help me to modify the subroutine above(a
much more simple example) and teach how to link them step by step? Many guys
are interested in it. Or are there any detailed document on it? The
explanasion of the help document is too simple.

"StefanoM" <massetti@tiscalinet.it> wrote in message
news:9b3u9t$f5c$1@suite03.caspur.it...
> Sadly, IDL cannot call directly a fortran subroutine, but it must be
> compiled into a DLL. Then you can use call_external ... the things are
> complicated by the fact that IDL and Fortran require the parameters to be
> passed in different ways: by value and by reference (see my post the
> 10/04/01). There is an example in the distribution of IDL, but I was not
> able to make it work. I you will find the way to do this, please let me
> know.
>
> regards
>
> Stefano
>
> web <jiali3@21cn.com> wrote in message 9b2soc$28d$1@mail.cn99.com...
>> Hi, I havenot find a perfect example on how to call fortran subroutine
> from
>> idl.
>>
>> For example, a(0) and a(1) are computed in an IDL program, I want a
> fortran
>> subroutine to compute c=a(0)+a(1). After c has been returned,
> d=a(0)+a(1)+c
>> is computed in IDL. How to do that? I think we will know how to call
> fortran
>> subroutine if we can do above.
>>
>> 1.IDL PROGRAM: test.pro
>>
>> pro test
>> a=fltarr(2)
>> a(0)=100 & a(1)=200
>> call_external sum_fortran(a,c)
>> d=a(0)+a(1)+c
>> print,a,c,d
>> end
>>
>> 2.FORTRAN SUBROUTINE: sum_fortran.f
>>
>> subroutine sum_fortran(a,c)
>> dimension a(2)
>> c=a(1)+a(2)
>> return
>> end
>>
>> Would you please help me to modify the above and tell me how to run?
>>
>> Can fortran call idl program?
>>
>> Best regards
>> Jiali
>>

Report message to a moderator

[Message index]

		Re: How to call fortran subroution? By: L. Paul Mix on Mon, 16 April 2001 15:25
		Re: How to call fortran subroution? By: Craig Markwardt on Mon, 16 April 2001 11:53
		Re: How to call fortran subroution? By: Liam E. Gumley on Mon, 16 April 2001 07:02
		Re: How to call fortran subroution? By: web on Sun, 15 April 2001 19:35
		Re: How to call fortran subroution? By: Liam E. Gumley on Sun, 15 April 2001 14:13
		Re: How to call fortran subroution? By: Craig Markwardt on Sun, 15 April 2001 07:31
		Re: How to call fortran subroution? By: web on Sat, 14 April 2001 18:01

Previous Topic:	How to read two-bytes variables from a file saved in Mac?
Next Topic:	Re: search for linux programs

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Tue Oct 14 12:52:56 PDT 2025

Total time taken to generate the page: 1.35733 seconds