| Re: number problem [message #61172] |
Wed, 09 July 2008 21:59  |
d.poreh
Messages: 406
Registered: October 2007
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Senior Member |
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On 9 Jul., 11:11, Conor <cmanc...@gmail.com> wrote:
> On Jul 9, 6:50 am, d.po...@gmail.com wrote:
>
>
>
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>
>> folks
>> i have a .TXt file like this:
>
>> 499750.95298079 3387735.57676302 1259.18847656 34.63407516
>> 499730.95491979 3387755.57503202 1259.18847656 34.66235733
>> 499710.95685879 3387775.57330102 1257.50012207 34.69063950
>> 499690.95879779 3387795.57157002 1255.97583008 34.71892166
>
>> and i did some analyze in IDL but result is like this:
>
>> 499750. 3.38774e+006 1259.00 34.0000
>> 499730. 3.38776e+006 1259.00 34.0000
>> 499710. 3.38778e+006 1257.00 34.0000
>> 499690. 3.38780e+006 1255.00 34.0000
>
>> but as you can see the result are not same. i used long-float and
>> ULL. but no answer.
>> any help
>> Cheeres
>
> I'm afraid you're going to have to include a lot more information
> before anyone can help. How are you reading in the data? It looks
> like you're just reading in the data as a long integer, when in
> reality you want doubles.- Zitierten Text ausblenden -
>
> - Zitierten Text anzeigen -
yes i just read the data and keep it in the 4*1470 array. i just want
to get the same data in the resualt.
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| Re: number problem [message #61266 is a reply to message #61172] |
Thu, 10 July 2008 07:01  |
Vince Hradil
Messages: 574
Registered: December 1999
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Senior Member |
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On Jul 9, 11:59 pm, d.po...@gmail.com wrote:
> On 9 Jul., 11:11, Conor <cmanc...@gmail.com> wrote:
>
>
>
>> On Jul 9, 6:50 am, d.po...@gmail.com wrote:
>
>>> folks
>>> i have a .TXt file like this:
>
>>> 499750.95298079 3387735.57676302 1259.18847656 34.63407516
>>> 499730.95491979 3387755.57503202 1259.18847656 34.66235733
>>> 499710.95685879 3387775.57330102 1257.50012207 34.69063950
>>> 499690.95879779 3387795.57157002 1255.97583008 34.71892166
>
>>> and i did some analyze in IDL but result is like this:
>
>>> 499750. 3.38774e+006 1259.00 34.0000
>>> 499730. 3.38776e+006 1259.00 34.0000
>>> 499710. 3.38778e+006 1257.00 34.0000
>>> 499690. 3.38780e+006 1255.00 34.0000
>
>>> but as you can see the result are not same. i used long-float and
>>> ULL. but no answer.
>>> any help
>>> Cheeres
>
>> I'm afraid you're going to have to include a lot more information
>> before anyone can help. How are you reading in the data? It looks
>> like you're just reading in the data as a long integer, when in
>> reality you want doubles.- Zitierten Text ausblenden -
>
>> - Zitierten Text anzeigen -
>
> yes i just read the data and keep it in the 4*1470 array. i just want
> to get the same data in the resualt.
Yes - we need more info to go on...
IDL> arr = dblarr(4,4)
IDL> openr, 1, 'c:\test.txt'
IDL> readf, 1, arr
IDL> free_lun, 1
IDL> print, arr
499750.95 3387735.6 1259.1885 34.634075
499730.95 3387755.6 1259.1885 34.662357
499710.96 3387775.6 1257.5001 34.690640
499690.96 3387795.6 1255.9758 34.718922
Hmmm... looks okay to me?
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