Hi Diab, Great to hear. You’re saying that Gnuplot can’t plot single pixels and/or do so fast? If you’re able to share some code (and I’m assuming relevant data), I’d love to take a look to compare!
Best regards, Ed From: Diab Jerius<mailto:djer...@cfa.harvard.edu> Sent: 16 August 2021 19:06 To: Ed .<mailto:ej...@hotmail.com> Cc: Karl Glazebrook<mailto:kglazebr...@swin.edu.au>; pdl-devel@lists.sourceforge.net<mailto:pdl-devel@lists.sourceforge.net> Subject: Re: [Pdl-devel] Ubuntu/debian PDL packages & pgplot Ed, I've fumbled my way through a couple of Alien::Build related modules, so that's the approach I was considering. There's a lot of old code which uses PGPLOT, so unfortunately that'll have to be a continuing thing. I just revived some 20 year old code that uses PGPLOT. My applications involve tossing lots (millions) of points at the screen and PGPLOT shines at that. It is fast, and knows how to draw a single pixel. Few packages can do that; they want to draw fancy vector or filled symbols. Nice for publication quality plots, but not when a scatter plot is what you need. PGPLOT does have plenty of warts, to be sure! I'll try to dig up some tuits somewhere. Diab On 8/16/21 1:16 PM, Ed . wrote: Hi Diab, Making an Alien::PGPLOT package sounds like a good solution to the problem of keeping “real” PGPLOT going (see my other message for my thoughts on whether that’s a good idea). If you go for this, please take a look at Alien::Build which is a superb library for making it incredibly easy to package up things like this. Once you had that ready, I’d be very pleased to accept a PR on CPAN PGPLOT to switch to depending on it, and then to make a separate CPAN P:G:PGPLOT – thanks to PDLA, we have the tools and experience to make that super-easy, barely an inconvenience. I will once again urge you and everyone else to give P:G:Simple a go and see what if anything would be needed to make it a really good drop-in replacement for P:G:PGPLOT. My feeling is that Craig’s work on it was so good that very little if anything will actually be needed. Best regards, Ed From: Diab Jerius<mailto:djer...@cfa.harvard.edu> Sent: 16 August 2021 17:10 To: Karl Glazebrook<mailto:kglazebr...@swin.edu.au> Cc: Ed .<mailto:ej...@hotmail.com>; pdl-devel@lists.sourceforge.net<mailto:pdl-devel@lists.sourceforge.net> Subject: Re: [Pdl-devel] Ubuntu/debian PDL packages & pgplot Here's an alternative (more general issue of PGPLOT support, not necessarily to solve the Ubuntu/Debian problem). There's an autotooled version of PGPLOT here: https://github.com/djerius/pgplot-autotool 1. Create an Alien::PGPLOT module 2. Make the CPAN PGPLOT package depend on that, 3. Move PDL::Graphics:: PGPLOT out of PDL core. On 8/16/21 8:24 AM, Karl Glazebrook wrote: Hi Ed OK I will start there, your help would be most welcome. Last time I tried Giza was two years ago, it worked OK for most simple pgplot things but most of the tests in my perl5-PGPLOT module failed! Mainly because I wrote those tests (back in the last millennium) to test edge cases to ensure functional completeness. There is a bunch of stuff one would not ’normally’ use. Still I don’t want to remove tests! It must be worth taking another look. I’d like to understand debian packaging enough to be able to offer a package that would deploy real pgplot as an unofficial alternative. Karl On 15 Aug 2021, at 1:41 am, Ed . <ej...@hotmail.com<mailto:ej...@hotmail.com>> wrote: I did a bit of reading around, and https://packages.ubuntu.com/focal/pdl makes it look like the “asking a question” or “filing a bug” links would be a starting point. Generally, I believe that reaching out and offer to package a libpdl-graphics-pgplot-perl (checking I got the right one this time :-) and asking for pointers will be the way forward. I gather from the -plplot entry that would create a new “package” with ITP (intent to package) status. My feeling is it wouldn’t be lots of effort. If you’re happy to take the lead and initiate comms and get their steers on tools and things one needs to sign up for, I’m very happy to support. With the knowledge gained with that, we could then package up things like PDL::Graphics::Simple, which I feel would make users’ lives a lot easier on the interactive front. I want to add a 3D capability to it, in imitation of MATLAB’s “surf” function. By the way, I read up a little on the Giza implementation of the PGPLOT interface; does it work sufficiently for your purposes as a PGPLOT replacement? Best regards, Ed From: Karl Glazebrook<mailto:kglazebr...@swin.edu.au> Sent: 14 August 2021 08:31 To: Ed .<mailto:ej...@hotmail.com> Cc: pdl-devel@lists.sourceforge.net<mailto:pdl-devel@lists.sourceforge.net> Subject: Re: [Pdl-devel] Ubuntu/debian PDL packages & pgplot Anyone have an idea where to start? Karl On 2 Aug 2021, at 9:19 am, Ed . <ej...@hotmail.com<mailto:ej...@hotmail.com>> wrote: Hi Karl, Ha, indeed I did link to results for PLplot, not PGPLOT. I would be quite interested in the results of asking Ubuntu/Debian folks about this! Best regards, Ed From: Karl Glazebrook<mailto:kglazebr...@swin.edu.au> Sent: 02 August 2021 00:12 To: Ed .<mailto:ej...@hotmail.com> Cc: pdl-devel@lists.sourceforge.net<mailto:pdl-devel@lists.sourceforge.net> Subject: Re: Ubuntu/debian PDL packages & pgplot On 2 Aug 2021, at 2:28 am, Ed . <ej...@hotmail.com<mailto:ej...@hotmail.com>> wrote: Hi Karl, I might have missed something, but when you say “PDL::Graphics::PDL” did you mean “PDL::Graphics::PGPLOT”? Hi Ed, you are absolutely right! Oops. I’ve rewritten the email again below as correctness is critical due to the multiple similar names, In any case, looking at https://packages.ubuntu.com/hirsute/amd64/pdl/filelist implies that there is indeed no PGPLOT.pm<http://pgplot.pm/> (though the demos are present). https://wnpp.debian.net/?type%5B%5D=RFP&project=libpdl-graphics-plplot-perl&description=&owner%5B%5D=yes&owner%5B%5D=no&col%5B%5D=description&sort=project%3Bdesc implies there is an open “RFP” (request for packaging) for libpdl-graphics-plplot-perl, which in turn implies that if someone did create a package, they would accept it. Yes, but this is for the PLPLOT interface not the PGPLOT interface. I was wondering if this was a typo and more generally if anyone on the dev list here new what the plan was for the package refactoring on debian. I can take this to the Ubuntu or Debian lists but thought I would start here first --- Hi there devs, Does anyone know what is going on in the Ubuntu/debian packges for PDL and the PGPLOT interface? If I do ‘apt install pdl’ then running pdl and doing ‘use PDL::Graphics::PGPLOT’ gives a missing package error. There is a message during the apt install that says: sudo apt install pdl ... Suggested packages: gsl-ref-psdoc | gsl-doc-pdf | gsl-doc-info | gsl-ref-html libhdf4-doc libhdf4-alt-dev hdf4-tools doc-base libastro-fits-header-perl libdevel-repl-perl libextutils-f77-perl libfile-map-perl libinline-perl libinline-c-perl libmodule-compile-perl libopengl-perl libpdl-fftw-perl libpdl-graphics-plplot-perl libpgplot-perl netpbm | imagemagick proj-bin If I then install libpgplot-perl then ‘use PGPLOT’ works but not ‘use PDL::Graphics::PGPLOT’. (I note that libpdl-graphics-plplot-perl does not seem to exist, logically one might think there should be a libpdl-graphics-pgplot-perl but that is not even mentioned - seehttps://packages.ubuntu.com/hirsute/pdl) The module PDL::Graphics::PGPLOT is pure perl, so there is no harm in including it in the pdl package. I am guessing someone removed it from the debian(?) package and intended to create libpdl-graphics-pgplot-perl as part of a package refactoring, but did not. It almost looks like libpdl-graphics-plplot-perl is a typo? I am not sure if this is an Ubuntu issue or a Debian one, and I don’t really following all the naming conventions of the metapackages and how Ubuntu packages relate to Debian ones Note the pdl.perl.org<http://pdl.perl.org/> easy install page recommendation for Ubuntu/debian no longer works! best Karl p.s. not relevant but the libpgplot-perl package actually gives a re-implementation of pgplot using giza, _______________________________________________ pdl-devel mailing list pdl-devel@lists.sourceforge.net<mailto:pdl-devel@lists.sourceforge.net> https://lists.sourceforge.net/lists/listinfo/pdl-devel _______________________________________________ pdl-devel mailing list pdl-devel@lists.sourceforge.net<mailto:pdl-devel@lists.sourceforge.net> https://lists.sourceforge.net/lists/listinfo/pdl-devel _______________________________________________ pdl-devel mailing list pdl-devel@lists.sourceforge.net<mailto:pdl-devel@lists.sourceforge.net> https://lists.sourceforge.net/lists/listinfo/pdl-devel
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