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Re: open and read a file [message #45861]

Mon, 10 October 2005 16:09

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

ChiChiRuiz@gmail.com writes:

> Hi there, I know this is a very easy task to do, but for some reason I
> can't get it to work. I have a .img file into the IDL code folder
> (where I save all the source code), then I run the following lines:
>
> openr, 1, filepath('filename.img')
> image = fltarr(xsize, ysize, zsize)
> readu, 1, image
> close, 1
>
> but I keep getting error message that the system cannot find the file
> specified.
> I thought as long as the .img file is located in the source code
> folder, i don't need to list the full address. What did I do wrong?

You forgot to use PROGRAMROOTDIR. :-)

OpenR, lun, Filepath(Root_Dir=ProgramRootDir(), 'filename.img'), /Get

You can find it here:

http://www.dfanning.com/programs/programrootdir.pro

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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		Re: open and read a file By: David Fanning on Mon, 10 October 2005 16:09
		Re: open and read a file By: Michael Wallace on Mon, 10 October 2005 14:35

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