identikon
A small collection of Racket scripts for generating identicons. This is very much alpha and will be changing a lot as I learn more about Racket. Identicons can be saved as PNG or SVG. Obligatory blog post.
Install
$ raco pkg install identikon
Dependencies
You will need to install sugar, quickcheck and css-tools.
Usage
Requiring identikon in Dr. Racket or Emacs with racket-mode or Geiser will give you access to the identikon function in the REPL:
(require identikon)
; Generate a default 300px identicon for "racket"
(identikon 300 300 "racket")
; Generate a q*bert style 300px identicon for "racket"
(identikon 300 300 "racket" "qbert")
; Generate a q*bert style 300px identicon for "racket" and save as an svg
(identikon 300 300 "racket" "qbert" "svg")
; start having real fun with identicons
(require identikon
2htdp/image)
(define foo (identikon 200 200 "foo"))
(define bar (identikon 200 200 "bar"))
(beside
(above foo bar)
(above bar foo))Note: Trying to use identikon in a standard CLI racket REPL will just return an (object:image% ...) instead of rendering the image. You could save an image to the filesystem this way: (identikon 300 300 "racket" "default" "svg"). If you're accessing the CLI REPL via either racket-mode or Geiser in Emacs then the images will render just fine like so:
CLI interface (via Raco)
-h Help
-s (multi) Size (all identikons are currently squares)
-i String to convert to identicon
-f File or input stream used to generate identikon
-r (optional) Ruleset to use
-t (optional) Filetype to save as: "png" or "svg"; defaults to png
$ raco identikon -s 300 -i "FooBarBaz"
$ raco identikon -s 300 -i "FooBarBaz" -r "squares"
$ raco identikon -s 300 -i "FooBarBaz" -r "squares" -t "svg"
$ raco identikon -s 300 -s 200 -s 100 -i "FooBarBaz" -r "stars" -t "svg"Built-in rule sets
Each identicon has a rules file (ex: default.rkt) which is responsible for taking the input data and generating an image as it sees fit. There are a few existing rule sets to play with.
