OK, I mis-read your instructions the first time, but now I get it. Thanks!
Ed
On Fri, 9 Oct 2009, Peter W. Draper wrote:
> On Thu, 8 Oct 2009, Edward Chapin wrote:
>
>> I seem to have encountered a GAIA bug.
>>
>> Please download this tarball (BLAST observations of Cas-A supernova
>> remnant):
>>
>> http://www.physics.ubc.ca/~echapin/cadc/blast05/BLASTcasa2005-06-12.tar.gz
>>
>> Inside is a file called
>>
>> BLASTcasa2005-06-12_250_decon_2008-12-22.fits
>>
>> HDU 1 is a 2d image
>>
>> HDU 2 is a 3d cube (first 2 dims are angular, last dim enumerates iteration
>> number from a lucy-richardson deconvolution).
>>
>> In the FITS HDU dialogue I can click on HDU2 and in the main GAIA window it
>> shows me the first plane of the cube. However, if I then select File ->
>> Open Cube it seems to have problems. The slider (using Axis 3) runs from 1
>> to 100 (there are only 10 planes), and moving it has no effect on the main
>> image window.
>>
>> I tried loading in HDU 2 with IDL and it looked OK, so I think it's just a
>> GAIA issue.
>
> Hi Ed,
>
> when you open HDU 2 using the default HDU browser, what you get is just an
> image, so that's why the cube toolbox isn't moving between the slices. For
> technical reasons it isn't possible to make this particular toolbox open
> a cube (related to the way that I generate the slice), so I added a new set
> of features for "browsing" FITS extension when you need to load a cube and
> the primary HDU contains an image.
>
> So to open a cube when there's an image in the primary extension you need to
> "browse" to it. So select "Choose file..." in the cube toobox, then select
> the FITS file in the dialog that appears, and then choose "Browse", finally
> select the extension to load the cube. This also works using the
> "File->Open..." dialog in the main window (the other ability you get from
> browsing is opening catalogues in extensions).
>
> Alternatively just do:
>
> gaia BLASTcasa2005-06-12_250_decon_2008-12-22.fits -hdu 2
>
> to open it from the command-line.
>
> Sorry about this wart.
>
> Peter.
>
> --
> Peter W. Draper, http://astro.dur.ac.uk/~pdraper
>
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