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[McIDAS #BPX-721543]: IR temperatures in Celsius



Hi Kwan,

re:
> I have been using a provided SU table IRTEMP.ST to display a color bar that
> corresponds to the IR brightness values using the BAR command.  The
> displayed units are in Kelvin.

Correct.

re:
> Is there a way to display them in Celsius?
> Do I need to make a new stretch table for this purpose?

Yes, you need to make a new stretch table.

re:
> How do I go about doing that?

You need to investigate the SU command (i.e., HELP SU)

Here is a quick stab at creating a temperature stretch table
in C:

SU INI IRTEMPC GVAR 'T[C]'
SU MAKE IRTEMPC -110.15 -31.151 255 177
SU MAKE IRTEMPC -31.15 56.85 176 0
 
SU TABLE IRTEMPC
BREAKPOINTS STORED IN TABLE : IRTEMPC.ST
INPUT       OUTPUT
-----       ------
 -110.15       255
 -31.151       177
 -31.15        176
 56.85         0
CALIBRATION TYPE  : GVAR
CALIBRATION UNITS : T[C]
BAND NUMBER       : -1
INTERPOLATION TYPE: LIN
SU: DONE

re:
> Thanks again,

No worries.

Cheers,

Tom
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Ticket Details
===================
Ticket ID: BPX-721543
Department: Support McIDAS
Priority: Normal
Status: Closed
===================
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