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 Problem with FFTusingnag.c		  New Topic  Reply to Topic
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cosy

Germany
Posts
Posted - 01/05/2006 :  10:44:59 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Version (Select Help-->About Origin): Origin 7 PRO
Operating System: Winxp
Hi,
I got a code from this website to make a FFT without truncation or padding. The file name is FFTusingnag.c . I got the following errors while compiling:

E:\Program Files\OriginLab\OriginPro7\OriginC\FFTUsingNAG.c(69) :Error, function or variable FFT not found
E:\Program Files\OriginLab\OriginPro7\OriginC\FFTUsingNAG.c(69) :Error, function or variable not found
E:\Program Files\OriginLab\OriginPro7\OriginC\FFTUsingNAG.c(69) :Error, general compile error
E:\Program Files\OriginLab\OriginPro7\OriginC\FFTUsingNAG.c(40) :Error, error(s) found in compiling function fft_using_nag

The line number points to the place where the code goes like :
int iRet = FFT(vecSignal, vecFFT);

Should I include any header files to proceed ?

Thanks and Regards,
COSY

easwar

USA
1964 Posts
Posted - 01/05/2006 :  11:16:33 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi COSY,

The example you are referring to is on the page:
http://www.originlab.com/index.aspx?s=9&lm=71&pid=268

The examples on that page are for version 7.5 - we should add a comment to that effect on the top of the page - apologies for not having added that.

As for this specific fft example, you can make it work in 7.0 in the following way:

1> add the matrix.h header file to your OC file:
#include <matrix.h>
2> add matrix.c file to the system branch of Code Builder (it may already be there)
3> comment out the following line:
wpgFFT.TitleShow = WIN_TITLE_SHOW_BOTH;
(or replace with call to LT)

and then compile the file again.

Easwar
OriginLab



Edited by - easwar on 01/05/2006 11:19:09 AM

Edited by - easwar on 01/05/2006 11:20:17 AM
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