Re: [Perldl] common denominator graphics for PDL

[Fabio D'Alfonso]

Hi, it seems a very good idea. But about * The use of Prima will provide an easy   to use, default GUI environment for more   sophisticated and user friendly PDL   applications. there are some things to consider. Both PDL and Prima have issues with documentation. I started to post something on perl.org about Prima, as is known to followers of the Prima list and also with some kind help, found many issues with undocumented behaviors. I would worry about the issues that the lack of documentation could bring to the PDL/Prima Joint Venture. At the same time this could be a great opportunity to bring together efforts to produce an adoptable resource. PDL /Prima are the only resources a available that have no specific effort to produce an high quality "seems a book" document. GTK2 has one (http://gtk2-perl.sourceforge.net/doc/gtk2-perl-study-guide/) Tk has one (Mastering/Tk, O'Reilly) I would be  happy to help in this project for the docs, but  only if a highy revised documentation (as for example that of GTK2, to consider something possible) in favor of users, and not a "pod 2 something", is intended as a CORE part of the initiative. I would propose to consider the ratio Number of Users / Number of Developers as a success index for both PDL and Prima. Fabio D'Alfonso 'Enabling Business Through IT' cell.  +39.348.059.40.22 * web: www.fabiodalfonso.com email: fabio.dalfo...@fabiodalfonso.com linkedin: www.linkedin.com/in/fabiodalfonso twitter: www.twitter.com/#!/fabio_dalfonso fax: +39.06.874.599.581 BlackBerry® Wireless Enabled Address. * Hidden  numbers are automatically rejected by the phone On 7/13/2012 5:37 PM, chm wrote: David and all- I think it is time to resolve the PDL graphics problem, "this missing link" by getting a basic, standard capability for PDL. I propose the standard display graphics for PDL be based on the Prima graphics toolkit by Karasik et. al. and the current code for PDL::Graphics::Prima by David Mertens. A start would be to review the common usage of PGPLOT, PLplot, and Gnuplot to come up with a Top 10 of use cases to implement.  They should be *very* simple to use and have smart defaults so the common case versions of the Top 10 can be done in 1-line or less.  :-) Motivation/justification: * More beginning PDL users thanks to the   PDL Book and the increasing buildability   and usability of PDL on all platforms.   It makes it more glaring that we don't   have a good, common, default graphics. * Alien::XXX development has not matured   enough to allow easy use of PLplot and   PGPLOT and it is arguable that we want   the base display graphics to be readily   available from perl/CPAN which Prima   is. * The use of Prima will provide an easy   to use, default GUI environment for more   sophisticated and user friendly PDL   applications. * If we could get that base graphics up   and running for the next point release   (which will include the new NiceSlice   filter engine and 64bit indexing) we   would have a compelling platform for   future growth. One downside, I am not prepared to push this effort through as I'm pretty busy working to make time for the final 64bit index development and the new NiceSlice engine support (the missing piece is the ability to use NiceSlice in an eval such as the pdl2 or perldl shells. I'm hoping that David might be willing to spearhead this development and maybe hold off on the Core diving for a bit. At any rate, I think the time is right for this to happen and the sooner the better. Thoughts, comments, "volunteers"? --Chris _______________________________________________ Perldl mailing list Perldl@jach.hawaii.edu http://mailman.jach.hawaii.edu/mailman/listinfo/perldl

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