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Re: Dynamic format. [message #50296 is a reply to message #50293]

Tue, 26 September 2006 14:16

btt
Messages: 345
Registered: December 2000

Senior Member

hanford.deglint@gmail.com wrote:
> Dynamic format.
>
> Hello.
>
> The following little program fails.
>
> pro temp
>
> cols = 120
> a = indgen(cols,12)
>
> openw, /get_lun, unit, '~/temp/whatever.dat'
> printf, unit, a, fomat = '(colsI)'
>
> free_lun, unit
>
> end
>
> This is not working. It seems that format requires a number, it does
> not like cols. Is there a way to format this text in such a way the
> carriage return is at the end of the row. Using 'printf, unit, a'
> causes the carriage return to be interspersed and at the end.
>

Hello,

Your trying to smush an integer into a string without converting it
first. I think you want something like,

printf,unit,a, format='(' + STRTRIM(cols,2) + 'I)'

which converts cols to STRING first.

I am not sure if it is an issue for you but you may need to specify the
WIDTH keyword to OPENW. Sometimes the default width isn't quite wide
enough.

Cheers,
Ben

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		Re: Dynamic format. By: Hanford on Tue, 26 September 2006 16:12
		Re: Dynamic format. By: btt on Tue, 26 September 2006 14:16

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