-------- Original Message -------- Subject: Re: How to make GNU Guile more successful Local Time: 18 de febrero de 2017 11:55 AM UTC Time: 18 de febrero de 2017 16:55 From: da...@altosw.be To: sirgazil <lizag...@protonmail.com> Rodger Fox <thylak...@openmailbox.org>, guile-user@gnu.org <guile-user@gnu.org>
Heya, > There is Guile-Cairo if you just want a basic canvas. > http://www.nongnu.org/guile-cairo/ > See also: https://www.cairographics.org/ Which you can use from Guile-Clutter [1], a must. I maintain a personal toolbox, called grip, which as some guile-clutter examples [2], some using cairo (the spline, the clock ...) https://www.gnu.org/software/guile-gnome/clutter/ [1] http://www.nongnu.org/grip/examples.html [2] > The problem is their level is not as high as I'd like. The course I'm > following is > for beginner programmers, so they use higher level libraries for drawing and > animating. For example, you can write a checker pattern function like this: > (define (checker-pattern color-a color-b) > (above (beside (square 20 "solid" color-a) (square 20 "solid" color-b)) > (beside (square 20 "solid" color-b) (square 20 "solid" color-a)))) > The functions "above", "beside", and "square" come with a Racket's image > library. > Guile cairo's interface is lower level, it feels like reading the SVG > specification, but without the geometric shapes. I'm working on Guile-CV, a computer vision functional programming library for Guile, which provides a high level API. I uploaded a tarball here (for GNU evaluators), here: http://download.savannah.gnu.org/releases/grip/guile-cv/guile-cv-0.1.0.tar.gz http://download.savannah.gnu.org/releases/grip/guile-cv/guile-cv-0.1.0.tar.gz.sig [ GPG Key: A3057AD7 [ gpg --keyserver keys.gnupg.net --recv-keys A3057AD7 [ I will upload a new version within the next few days, stay tuned... Chers, David Thanks, David, I'll take a look at those :)
