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Re: How to read a file in zip or gz format usin [message #2640 is a reply to message #2507]

Fri, 05 August 1994 08:33

chase
Messages: 62
Registered: May 1993

Member

>>>> > "Thomas" == Thomas Oettli <oet@sma.ch> writes:

Thomas> No problem, I had a similiar problem some time ago, here is
Thomas> the data read procedure I used,

Thomas> FUNCTION GET_RC, f
Thomas> ; Return reference coordinates
Thomas> coords = { x_ref:fltarr(305,269), y_ref:fltarr(305,269) }
Thomas> spawn, ['gunzip','-c',f], UNIT=lun, /NOSHELL
Thomas> readu, lun, coords
Thomas> free_lun, lun return, coords
Thomas> END

I have tried this in the past but have experienced problems with the
IDL prematurely losing the pipe. This seems to happen when I try to
do other file I/O before I finish using pipe created by the spawn
command.

Has anyone else experienced difficulties with using UNIX pipes created
with spawn?

Chris
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The Applied Physics Laboratory
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chris_chase@jhuapl.edu

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[Message index]

		How to read a file in zip or gz format using IDL? By: j.tan on Wed, 03 August 1994 08:17
		Re: How to read a file in zip or gz format using IDL? By: tai on Wed, 03 August 1994 14:03
		Re: How to read a file in zip or gz format using IDL? By: 8015 on Thu, 04 August 1994 08:34
		Re: How to read a file in zip or gz format usin By: chase on Fri, 05 August 1994 08:33
		Re: How to read a file in zip or gz format using IDL? By: j.tan on Fri, 05 August 1994 05:33
		Re: How to read a file in zip or gz format usin By: oet on Thu, 04 August 1994 21:42

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