pixels

A Clojure library designed to simulate operations on pixmaps. Note that the pixmaps are represented by vectors of vectors, which means in the code the coordinates are reversed to allow use of things like get-in.

Prerequisites

The following are required to run this tool:

• Java SE Development Kit 8
• Leiningen 2.5.1

Usage

(require '[pixels.core])

Create a new image:

(def image (I 3 4))
=> [["O" "O" "O"] ["O" "O" "O"] ["O" "O" "O"] ["O" "O" "O"]]

Colour a pixel:

(L image 2 2 "X")
=> [["O" "O" "O"] ["O" "X" "O"] ["O" "O" "O"] ["O" "O" "O"]]

Paint a vertical segment:

(V image 3 2 4 "X")
=> [["O" "O" "O"] ["O" "O" "X"] ["O" "O" "X"] ["O" "O" "X"]] 

Paint a horizontal segment:

(H image 1 3 2 "X")
=> [["O" "O" "O"] ["X" "X" "X"] ["O" "O" "O"] ["O" "O" "O"]]

Flood fill a region:

(def question-mark [["X" "X" "X"]
                    ["X" "O" "X"]
                    ["O" "X" "X"]
                    ["O" "X" "O"]])
                    
(F question-mark 2 3 "I")
=> [["I" "I" "I"] ["I" "O" "I"] ["O" "I" "I"] ["O" "I" "O"]]

Running tests

Tests are written using Midje

lein midje

License

Copyright © 2015 Conan Cook