| Signed and unsigned integer problem [message #10037] |
Tue, 07 October 1997 00:00  |
Alexei Chirokikh
Messages: 4
Registered: September 1997
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Junior Member |
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Hi, all
I have data file which is in unsigned integer format. How can I properly =
read in PV-Wave?
--
AC
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<DIV><FONT color=3D#000000 size=3D2>Hi, all</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>I have data file which is in =
unsigned integer=20
format. How can I properly read in PV-Wave?</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>--</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>AC</FONT></DIV></BODY></HTML>
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| Re: Signed and unsigned integer problem [message #10168 is a reply to message #10037] |
Thu, 09 October 1997 00:00  |
Alexei Chirokikh
Messages: 4
Registered: September 1997
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Junior Member |
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Thanks a lot. It works.
Bernd Aberle wrote in message <343CA459.7D25@dfd.dlr.de>...
> Alexei Chirokikh wrote:
>>
>> Hi, all
>> I have data file which is in unsigned integer format. How can I
>> properly read in PV-Wave?
>>
>> --
>> AC
>
> I don't have PV-Wave, but in IDL you could read the data as signed
> integer and convert all data to long, but like this :
> data_long = long(data_short and '0000ffff'X)
> so that the long data is positiv.
>
> E.g.:
> IDL> print,long(-1 and '0000ffff'X)
> 65535
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| Re: Signed and unsigned integer problem [message #10171 is a reply to message #10037] |
Thu, 09 October 1997 00:00 |
Bernd Aberle
Messages: 2
Registered: September 1997
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Junior Member |
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Alexei Chirokikh wrote:
>
> Hi, all
> I have data file which is in unsigned integer format. How can I
> properly read in PV-Wave?
>
> --
> AC
I don't have PV-Wave, but in IDL you could read the data as signed
integer and convert all data to long, but like this :
data_long = long(data_short and '0000ffff'X)
so that the long data is positiv.
E.g.:
IDL> print,long(-1 and '0000ffff'X)
65535
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