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Update stdout instead of writing new line [message #85027] Mon, 24 June 2013 13:17 Go to next message
stefan.meingast is currently offline  stefan.meingast
Messages: 30
Registered: June 2012
Member
Hey

I had hoped that someone here might be able to answer this quick question:

I like to monitor my progress by writing stuff into the terminal, but it would be much more convenient to update the output instead of writing a new line.

e.g.:
FOR i=1,100 DO PRINT, i

writes 100 lines in the terminal. Would it be possible to overwrite the previous output so that in the end only one line is used?

Thanks for any hints :)

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Re: Update stdout instead of writing new line [message #85028 is a reply to message #85027] Mon, 24 June 2013 13:29 Go to previous messageGo to next message
Lajos Foldy is currently offline  Lajos Foldy
Messages: 176
Registered: December 2011
Senior Member
On Monday, June 24, 2013 10:17:49 PM UTC+2, Stefan wrote:
> Hey
>
>
>
> I had hoped that someone here might be able to answer this quick question:
>
>
>
> I like to monitor my progress by writing stuff into the terminal, but it would be much more convenient to update the output instead of writing a new line.
>
>
>
> e.g.:
>
> FOR i=1,100 DO PRINT, i
>
>
>
> writes 100 lines in the terminal. Would it be possible to overwrite the previous output so that in the end only one line is used?
>
>
>
> Thanks for any hints :)

FOR i=1,100 DO PRINT, string(13b), i, format='(A,I,$)'

regards,
Lajos

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Re: Update stdout instead of writing new line [message #85029 is a reply to message #85027] Mon, 24 June 2013 13:31 Go to previous messageGo to next message
David Fanning is currently offline  David Fanning
Messages: 11724
Registered: August 2001
Senior Member
Stefan writes:

> I had hoped that someone here might be able to answer this quick question:
>
> I like to monitor my progress by writing stuff into the terminal, but it would be much more convenient to update the output instead of writing a new line.
>
> e.g.:
> FOR i=1,100 DO PRINT, i
>
> writes 100 lines in the terminal. Would it be possible to overwrite the previous output so that in the end only one line is used?
>
> Thanks for any hints :)

http://www.idlcoyote.com/fileio_tips/lfsuppress.html

Cheers,

David



--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")

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Re: Update stdout instead of writing new line [message #85030 is a reply to message #85027] Mon, 24 June 2013 13:46 Go to previous messageGo to next message
stefan.meingast is currently offline  stefan.meingast
Messages: 30
Registered: June 2012
Member
Wow, quick answer, thanks!!! :)

Alright, that's a very good start, this indeed writes everything into one line, but is it also possible to overwrite the previous output? In this way I would end up with VERY long lines. :)

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Re: Update stdout instead of writing new line [message #85031 is a reply to message #85030] Mon, 24 June 2013 14:00 Go to previous messageGo to next message
Lajos Foldy is currently offline  Lajos Foldy
Messages: 176
Registered: December 2011
Senior Member
On Monday, June 24, 2013 10:46:40 PM UTC+2, Stefan wrote:
> Wow, quick answer, thanks!!! :)
>
>
>
> Alright, that's a very good start, this indeed writes everything into one line, but is it also possible to overwrite the previous output? In this way I would end up with VERY long lines. :)


Have you tried my suggestion? 13b is carriage return, i.e. go to the beginning of line.

FOR i=1,100 DO PRINT, string(13b), i, format='(A,I,$)'

regards,
Lajos

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Re: Update stdout instead of writing new line [message #85032 is a reply to message #85027] Mon, 24 June 2013 15:19 Go to previous messageGo to next message
stefan.meingast is currently offline  stefan.meingast
Messages: 30
Registered: June 2012
Member
Ah, in fact I have overlooked your answer. ;)

This works, thanks a lot!! :)

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Re: Update stdout instead of writing new line [message #85033 is a reply to message #85031] Mon, 24 June 2013 23:54 Go to previous messageGo to next message
Karlo Janos is currently offline  Karlo Janos
Messages: 31
Registered: July 2008
Member
> Have you tried my suggestion? 13b is carriage return, i.e. go to the
beginning of line.
>
> FOR i=1,100 DO PRINT, string(13b), i, format='(A,I,$)'

Does this also work with the IDL console of the editor environment?
Regards

Karlo

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Re: Update stdout instead of writing new line [message #85038 is a reply to message #85033] Tue, 25 June 2013 07:55 Go to previous message
Bill Nel is currently offline  Bill Nel
Messages: 31
Registered: October 2010
Member
>> FOR i=1,100 DO PRINT, string(13b), i, format='(A,I,$)'

>
> Does this also work with the IDL console of the editor environment?


Nope. My notes say it's been broken in Workbench since 7.0.

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