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________________________________
From: Fabio D'Alfonso <[email protected]>
To: [email protected]
Cc: Dmitry Karasik <[email protected]>; [email protected]
Sent: Friday, July 13, 2012 1:19 PM
Subject: Re: [Perldl] common denominator graphics for PDL
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: [email protected]
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
>
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