Done, at PDLPorters/pdl. I'm still unsure about removing 'tmp' from
'init_vars', as it seems to do more than just declaring the variable.

Regards,
Luis


On Mon, Aug 15, 2022 at 11:20:03PM +0000, Ed . wrote:
> Sorry that you had to add extra bits! Could you PR what you have, and add the 
> test code as a comment on the PR? (I’m happy to bend it into the .t)
>
> Best regards,
> Ed
>
> From: Luis Mochan<mailto:moc...@icf.unam.mx>
> Sent: 15 August 2022 20:23
> To: Ed .<mailto:ej...@hotmail.com>
> Cc: perldl<mailto:pdl-general@lists.sourceforge.net>; 
> perldl<mailto:pdl-de...@lists.sourceforge.net>
> Subject: Re: [Pdl-general] conv2d
>
> Thaks Ed,
> I modified conv2d as you suggested. The result became a CDouble, but
> the imaginary part disappeared. I could fix it by also changing the
> init_vars line (around l. 270), removing the variable tmp, which was
> declared as a double, and declaring it just before the start of the
> broadcastloop using
>     $GENERIC() tmp;
> However, as I'm not familiar with init_vars, init_map, etc., I'm not
> sure what I did is correct. I checked with a few examples that it works for
> complex array with real mask, real array with complex mask, and complex
> array with complex mask.
> Regards,
> Luis
>
>
>
> On Mon, Aug 15, 2022 at 05:31:01PM +0000, Ed . wrote:
> > Hi Luis,
> >
> > For backward compatibility, operations default to supporting all real 
> > types, which is why you’re getting LDouble (the highest-numbered real type, 
> > but still below the complex ones). To make the various Image* operations 
> > work on native complex values, they just need telling to do so.
> >
> > Could you try patching Libtmp/Image2D/image2d.pd with this at the top 
> > (cribbed from Basic/Ops/ops.pd) before the pp_addpm:
> >
> > my $A = [ppdefs_all];
> >
> > Then add “GenericTypes => $A” to at least the pp_def of conv2d, around line 
> > 266?
> >
> > Please let us know if that works (you’d need to do a “make install”, or 
> > else a “make basic” then “perl -Mblib yourlocalscript.pl”). If it does, 
> > feel like PR-ing an update for all the Image* modules in Libtmp? :-)
> >
> > Best regards,
> > Ed
> >
> > From: Luis Mochan<mailto:moc...@icf.unam.mx>
> > Sent: 15 August 2022 17:39
> > To: perldl<mailto:pdl-general@lists.sourceforge.net>; 
> > perldl<mailto:pdl-de...@lists.sourceforge.net>
> > Subject: [Pdl-general] conv2d
> >
> > Hello,
> > I tried to use conv2d from PDL::Image2D to make a simple average, as in
> >     $z->conv2d(ones(3,3))/9;
> > to take the arithmetic average a pixel with its neareast
> > neighbors. However, what I want to average is a component of an
> > electric field which is complex valued. It turns out that conv2d
> > doesn't work on complex quantities and the result I obtained was of
> > the LDouble type. Having looked further yet.
> > Regards,
> > Luis
> >
> > --
> >
> >                                                                   o
> > W. Luis Mochán,                      | tel:(52)(777)329-1734     /<(*)
> > Instituto de Ciencias Físicas, UNAM  | fax:(52)(777)317-5388     `>/   /\
> > Av. Universidad s/n CP 62210         |                           (*)/\/  \
> > Cuernavaca, Morelos, México          | moc...@fis.unam.mx   /\_/\__/
> > GPG: 791EB9EB, C949 3F81 6D9B 1191 9A16  C2DF 5F0A C52B 791E B9EB
> >
> >
> > _______________________________________________
> > pdl-general mailing list
> > pdl-general@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/pdl-general
> >
>
> --
>
>                                                                   o
> W. Luis Mochán,                      | tel:(52)(777)329-1734     /<(*)
> Instituto de Ciencias Físicas, UNAM  | fax:(52)(777)317-5388     `>/   /\
> Av. Universidad s/n CP 62210         |                           (*)/\/  \
> Cuernavaca, Morelos, México          | moc...@fis.unam.mx   /\_/\__/
> GPG: 791EB9EB, C949 3F81 6D9B 1191 9A16  C2DF 5F0A C52B 791E B9EB
>

--

                                                                  o
W. Luis Mochán,                      | tel:(52)(777)329-1734     /<(*)
Instituto de Ciencias Físicas, UNAM  | fax:(52)(777)317-5388     `>/   /\
Av. Universidad s/n CP 62210         |                           (*)/\/  \
Cuernavaca, Morelos, México          | moc...@fis.unam.mx   /\_/\__/
GPG: 791EB9EB, C949 3F81 6D9B 1191 9A16  C2DF 5F0A C52B 791E B9EB


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