From: SonOfLilit <sonoflilit@...>
Date: 2007-01-28T16:23:55+09:00
Subject: Re: Real time vector graphics

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Thank you, and I've read that.

I've read that Cairo is slow. Is that true or random whining?

LISP is for the combination of language dynamicism and speed.

On 1/27/07, Daniel Amelang <daniel.amelang@gmail.com> wrote:
>
> On 1/23/07, SonOfLilit <sonoflilit@gmail.com> wrote:
> > ...
> > I'm planning to prototype a vector graphics Zooming User Interface using
> > ruby (because it feels good and it's just a prototype - in the case that
> I
> > elect to build the system I will probably force myself to learn a lisp
> and
> > OpenGL or OpenVG).
>
> Some Lisp dialect + OpenVG would be an...interesting choice for the
> actual implementation. Does your choice of a Lisp dialect have
> anything to due with the fact that some early ZUIs were written in a
> Lisp dialect?
>
> Also, a fast OpenVG implementation isn't (yet) readily available for
> most common hardware/OS combinations out there, so you may run into
> portability/speed problems with OpenVG.
>
> >
> > Has anyone tried to use the ruby bindings of Cairo? Is there an
> alternative?
>
> Yes, they work great once you get them installed. Go here to find the
> (very helpful) community behind them:
>
> http://ruby-gnome2.sourceforge.jp/
>
> Cairo would be a good choice if you need 1) high portability 2)
> hardware acceleration when available 3) open-source with few licensing
> restrictions (LGPL).
>
> Cairo has an OpenGL backend, and there's been talk about writing an
> OpenVG backend too. So using Cairo would mean that your code wouldn't
> have to change very much as you try out different rendering targets.
>
> > By the way, does anyone know of an online resource discussing low-level
> > implementation of graphical user interfaces?
>
> You may be interesting in the paper "Implementing a Zooming User
> Interface: Experience Building Pad++" by Benderson et. al
>
> Dan
>
>

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