| Linking two or more IDL programs [message #80452] |
Sat, 16 June 2012 16:52  |
Baro
Messages: 19
Registered: May 2012
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Junior Member |
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Dear All
I have four different programs written in IDL, each program gives me one or two parameters.I want to use the out put of this programs, as an input for one single equation, in the fifth one (that i am writing). I am facing difficulty in linking this programs into one last program. Can you help please?
Cheers
Guta
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| Re: Linking two or more IDL programs [message #80550 is a reply to message #80452] |
Sun, 17 June 2012 10:22  |
k_ghreep
Messages: 19
Registered: May 2012
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Junior Member |
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On Sunday, June 17, 2012 1:52:36 AM UTC+2, gutewaqi wrote:
> Dear All
>
> I have four different programs written in IDL, each program gives me one or two parameters.I want to use the out put of this programs, as an input for one single equation, in the fifth one (that i am writing). I am facing difficulty in linking this programs into one last program. Can you help please?
>
> Cheers
> Guta
It is easy to do this like that
first, write a main program say XC to add two numbers a and b
a= 3. and b = 6.
the first command line result_adda=adda(a,b)
call a subroutine namely adda to calculate a+b which is written in a separate file as follows
FUNCTION adda, a,b ; in the first line write FUNCTION adda which is
; written in the first line command follow by a comma
; and the variables names separated by comma a, b
; please note that the variables a and b are the same
; characters in the first line command in the main
; program
d= a+b ; sum a and b and put the result in a new
; variable namely d
return, {d:d} ; before ending the subroutine please set the variable d
; in the following command as follows
END ; finally end subroutine
the second command line result_mult=mult(a,b)
call a subroutine namely mult to calculate a*b which is also written in a separate file as follows
FUNCTION mult, a,b ; in the first line write FUNCTION mult follow by a
; comma and the variables names separated by comma a, b
; please note that the variables a and b are the same
; characters in the second line command in the main
; program
d= a*b ; multipli a and b and put the result in a new
; variable namely d with out problem
return, {d:d} ; before ending the subroutine please set the variable d
; in the following command as follows
END ; finally write end subroutine
if you run the following main program
?????????????????????
pro xc
a=3.
b=6.
result_adda=adda(a,b) ; addation a+b
result_mult=mult(a,b) ; multiplications a*b
print, a, b, result_adda.d
print, a, b, result_mult.d
end
?????????????????????
you will get the following results
3.00000 6.00000 9.00000
3.00000 6.00000 18.0000
finally you can write the both subroutines in one as follows
FUNCTION all, a,b
d1= a+b
d2=a*b
return, {d:d, d1:d1}
END
please note that the variables d and d1 are the sum and multiply a and b respectively.
and the main program as follows
pro XC
a=3.
b=6.
result=all(a,b)
print, a, b, result.d, result.d1
end
you will get the following results
3.00000 6.00000 9.00000 18.0000
My Best Wishes
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