Mercurial > lasercutter

     1 (ns laser.rasterize)

     2 

     3 (import '(java.io File))

     4 (import '(org.apache.commons.io FileUtils))

     5 (import '(javax.imageio ImageIO) )

     6 (import '(javax.swing JFrame))

     7 (import '(java.awt Color BorderLayout))

     8 (import '(ij ImagePlus IJ))

     9 (import '(java.lang Math))

    10 (import '(java.awt Graphics2D Panel))

    11 (import '(ij Macro))

    12 

    13 (import '(java.io BufferedReader InputStreamReader))

    14 (import '(java.awt.image BufferedImage))

    15 

    16 (use 'clojure.contrib.str-utils)

    17 

    18 (use 'clojure.contrib.combinatorics)

    19 

    20 

    21 (use 'clojure.contrib.repl-utils)

    22 

    23 (set! *print-length* 20)

    24 

    25 

    26 (def img "/home/r/graster/test.png")

    27 

    28 

    29 (def feed 120)

    30 (def  dpi [500, 500])

    31 (def on_range [0.0, 0.5])

    32 (def overshoot 0.5)

    33 (def offset [1.0, 1.0])

    34 (def tiles [1, 1])

    35 (def tile_size [false, false])

    36 (def tile_spacing [0.125, 0.125])

    37 (def feed 120)

    38 (def cut_feed 20)

    39 (def corner_radius 0)

    40 

    41 

    42 (defn preserve-meta [f]

    43   (fn [& x] (with-meta

    44 	      (apply f x)

    45 	      (meta (last x)))))

    46 

    47 

    48 

    49 (defn frame-hash

    50   "yields a convienent representation for the pixles in an image.

    51    Because of the size of the structvre generated, this must only be used

    52    in a transient way so that java can do it's garbage collection."

    53   [#^java.lang.String image-name]

    54   (let [image+ (ImagePlus. image-name)]

    55     (with-meta

    56       (let [buf (.. image+ getBufferedImage)

    57 	    color (.getColorModel buf)]

    58 	(apply hash-map 

    59 	       (interleave 

    60 		(doall (for [x (range (.getWidth image+)) y (range (.getHeight image+))]

    61 			 (vector x y)))

    62 		(doall (for [x (range (.getWidth image+)) y (range (.getHeight image+))]

    63 			 (let [data (.getRGB buf x y)] 

    64 			   (hash-map :r (bit-shift-right (bit-and 0xff0000 data) 16)

    65 				     :g (bit-shift-right (bit-and 0x00ff00 data) 8)

    66 				     :b (bit-and 0x0000ff data))))))))

    67       {:width  (.getWidth image+) :height (.getHeight image+)})))

    68 

    69 

    70 

    71 

    72 

    73 

    74 

    75 (def white {:r 255, :g 255, :b 255})

    76 (def black {:r 0,   :g 0,   :b 0})

    77 

    78 (def expt #(Math/pow %1 %2))

    79 

    80 (defn rgb-euclidian

    81   [{r1 :r g1 :g b1 :b} {r2 :r g2 :g b2 :b} ]

    82   (expt (+ (expt (- r1 r2) 2)

    83 	  (expt (- g1 g2) 2)

    84 	  (expt (- b1 b2) 2)) 0.5))

    85 

    86 (defn b&w

    87   "turn everything strictly black or white"

    88   [window]

    89   (with-meta

    90   (zipmap

    91    (keys window)

    92    (map (fn  [rgb] 

    93 	  (if (> (rgb-euclidian rgb white) (rgb-euclidian rgb black))

    94 	    black white))

    95 	(vals window))) (meta window)))

    96 

    97 

    98 

    99 (defn raster-preamble []

   100   (str-join \newline

   101 	    ["M63 P0\nG61"

   102 	    (str \F feed)

   103 	    "M101"

   104 	    "M3 S1"]))

   105 

   106 (defn raster-epilogue []

   107   (str-join \newline

   108 	    ["M63 PO"

   109 	     "M5"

   110 	     "M2"]))

   111 

   112 

   113 (defn raster-comment [string]

   114   (str "(" (re-gsub #"[()]" "" string) ")"))

   115 

   116 (defn filter-keys [fun m]

   117   (select-keys m (filter fun (keys m))))

   118 (def filter-keys (preserve-meta filter-keys))

   119 

   120 (defn filter-vals [fun m]

   121     (into {} (filter (comp fun val) m)))

   122 (def filter-vals (preserve-meta filter-vals))

   123 

   124 (defn frame-hash->bufferedImage

   125   [frame-hash]

   126     (let [data  (meta frame-hash)

   127 	image (BufferedImage. (:width data) (:height data) BufferedImage/TYPE_INT_BGR)]

   128 	

   129 	(doall (for [element frame-hash] 

   130 	  (let [coord  (key element) 

   131 		rgb   (val element)

   132 		packed-RGB 

   133 		(+ (bit-shift-left (:r rgb) 16)

   134 		   (bit-shift-left (:g rgb) 8)

   135 		                   (:b rgb))]

   136 	    (.setRGB image (first coord) (last coord) packed-RGB))))

   137 	image))

   138   

   139 (defmulti  display "Creates a JFrame and displays a buffered image"  class)

   140 

   141 (defn- makePanel [image] (proxy [Panel] [] (paint [g]  (.drawImage g image 0 0 nil))))

   142 

   143 

   144 (defmethod display 

   145   BufferedImage  [image] 

   146   (let [panel (makePanel image)

   147 	frame (JFrame. "Oh Yeah!")]

   148     (.add frame panel) 

   149     (.pack frame) 

   150     (.setVisible frame true ) 

   151     (.setSize frame(.getWidth image) (.getHeight image))))

   152  

   153 (defmethod display

   154   ImagePlus [image]

   155   (display (.getBufferedImage image)))

   156 

   157 (defmethod display

   158   clojure.lang.PersistentHashMap [frame-hash]

   159   (display (frame-hash->bufferedImage frame-hash)))

   160 

   161 (defmethod display

   162     clojure.lang.PersistentArrayMap [frame-hash]

   163     (display (frame-hash->bufferedImage frame-hash)))

   164 

   165 

   166 

   167 

   168
author	Robert McIntyre <rlm@mit.edu>
date	Fri, 20 Aug 2010 01:47:28 -0400
parents	6533b4ef83ad
children	4ae2497acf7d