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Re: Convert Integer to Text [message #25051]

Mon, 14 May 2001 05:24

Martin Schultz
Messages: 515
Registered: August 1997

Senior Member

Dan Blair <vze2p88d@verizon.net> writes:

> Mark Hadfield wrote:
>
>> From: ""Mark Hadfield"" <m.hadfield@niwa.cri.nz>
>>
>>> You can add the prefix and suffix via the "+" operator like this...
>>>
>>> name = 'MC'+string(index,format='(I3.3)')+'.dcm'
>>>
>>> or within the format specifier like this...
>>>
>>> name = string(index,format='("MC",I3.3,".dcm"')'
>>
>> Of course you can also use printf-style format codes (new to IDL 5.4) like
>> this
>>
>> name = string(index,format='(%"MC%3.3d.dcm")')
>>
>> I suppose there must be somebody out there who actually *uses* this stuff?
>>
>> ---
>> Mark Hadfield

> A freind of mine wrote a nice thing for just this application. It's a
> function called
> padnumstring.pro
>
> here it is
>
> repeat begin
> if strlen(numstring) lt length then numstring='0'+numstring
> endrep until strlen(numstring) eq length

Not to blame you or your friend, but Mark's solution using the format qualifier is far superior and faster, too. You shouldn't use a loop in IDL when you can avoid it as easily as here.

Martin

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[Message index]

		Re: Convert Integer to Text By: Martin Schultz on Mon, 14 May 2001 05:24
		Re: Convert Integer to Text By: Dan Blair on Sun, 13 May 2001 20:05
		Re: Convert Integer to Text By: m.hadfield on Sun, 13 May 2001 15:13
		Re: Convert Integer to Text By: m.hadfield on Sun, 13 May 2001 15:06
		Re: Convert Integer to Text By: Emmler, Oliver on Sat, 26 May 2001 07:15

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