[Issues] ConvolvedFrame, SegmentationImage and chip attribute

[Hans Vaith]

Change committed. 

Thanks,
Hans

On Wednesday September 12 2007 13:57:16 Ewout M. Helmich wrote:
> Hi Hans,
>
> Looks good to me, go ahead and commit it please.
>
> Regards,
> Ewout
>
> Hans Vaith wrote:
> > Dear all,
> >
> > testing the ConvolvedFrame and the underlying convolution software,
> > implemented by Johannes Koppenhöfer and Arno Riffeser, within AstroWISE,
> > I ran into a problem when trying to create a SourceList from these
> > frames. The problem arises from the fact that ConvolvedFrame has a chip
> > attribute that will not be set, however, when a ConvolvedFrame is created
> > by convolving a CoaddedRegriddedFrame, as the latter does not have a chip
> > attribute.
> >
> > When, as part of making a SourceList, the method get_canonical_name() of
> > class SegmentationImage is called, the following piece of code causes an
> > error:
> >
> > if hasattr(self.sourcelist.frame, 'chip'):
> >     canonical.chip_name       = self.sourcelist.frame.chip.name
> >
> >
> > In my local checkout of opipe I have added an additional check:
> >
> > if hasattr(self.sourcelist.frame, 'chip'):
> >     if self.sourcelist.frame.chip != None:
> >         canonical.chip_name       = self.sourcelist.frame.chip.name
> >
> > With this additional check the error does not occur.
> >
> > Please let me know if this fix is acceptable, or if the problem should be
> > tackled somewhere else.
> >
> > Regards,
> > Hans
> >
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