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1 (ns laser.rasterize)
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2
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3 (import '(java.io File))
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4 (import '(org.apache.commons.io FileUtils))
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5 (import '(javax.imageio ImageIO) )
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6 (import '(javax.swing JFrame))
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7 (import '(java.awt Color BorderLayout))
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8 (import '(ij ImagePlus IJ))
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9 (import '(java.lang Math))
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10 (import '(java.awt Graphics2D Panel))
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11 (import '(ij Macro))
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12
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13 (import '(java.io BufferedReader InputStreamReader))
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14 (import '(java.awt.image BufferedImage))
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15
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16 (use 'clojure.contrib.str-utils)
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17 (use 'clojure.contrib.seq-utils)
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18 (use 'clojure.contrib.combinatorics)
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19 (use 'clojure.contrib.duck-streams)
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20
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21 (use 'clojure.contrib.repl-utils)
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22
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23 (set! *print-length* 20)
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24
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25
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26
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27
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28 (def feed 120)
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29 (def dpi [500, 500])
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30
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31
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32
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33
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34 (defn preserve-meta [f]
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35 (fn [& x] (with-meta
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36 (apply f x)
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37 (meta (last x)))))
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38
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39 (defmulti frame-hash-multi class)
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40
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41
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42 (defmethod frame-hash-multi ImagePlus
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43 [image+]
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44 (with-meta
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45 (let [buf (.. image+ getBufferedImage)
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46 color (.getColorModel buf)]
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47 (apply hash-map
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48 (interleave
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49 (doall (for [x (range (.getWidth image+)) y (range (.getHeight image+))]
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50 (vector x y)))
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51 (doall (for [x (range (.getWidth image+)) y (range (.getHeight image+))]
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52 (let [data (.getRGB buf x y)]
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53 (hash-map :r (bit-shift-right (bit-and 0xff0000 data) 16)
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54 :g (bit-shift-right (bit-and 0x00ff00 data) 8)
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55 :b (bit-and 0x0000ff data))))))))
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56 {:width (.getWidth image+) :height (.getHeight image+)}))
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57
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58
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59 (defmethod frame-hash-multi String
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60 [image-name]
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61 (let [image+ (ImagePlus. image-name)]
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62 (frame-hash-multi image+)))
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63
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64
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65 (defn frame-hash
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66 "yields a convienent representation for the pixles in an image.
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67 Because of the size of the structvre generated, this must only be used
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68 in a transient way so that java can do it's garbage collection."
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69 [something]
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70 (frame-hash-multi something))
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71
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72 ;(def frame-hash (preserve-meta frame-hash))
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73
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74
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75
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76
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77 (def white {:r 255, :g 255, :b 255})
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78 (def black {:r 0, :g 0, :b 0})
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79
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80 (def expt #(Math/pow %1 %2))
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81
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82 (defn rgb-euclidian
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83 [{r1 :r g1 :g b1 :b} {r2 :r g2 :g b2 :b} ]
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84 (expt (+ (expt (- r1 r2) 2)
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85 (expt (- g1 g2) 2)
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86 (expt (- b1 b2) 2)) 0.5))
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87
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88 (defn b&w
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89 "turn everything strictly black or white"
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90 [window]
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91 (with-meta
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92 (zipmap
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93 (keys window)
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94 (map (fn [rgb]
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95 (if (> (rgb-euclidian rgb white) (rgb-euclidian rgb black))
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96 black white))
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97 (vals window))) (meta window)))
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98
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99
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100
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101 (defn raster-preamble []
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102 (str-join \newline
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103 ["M63 P0\nG61"
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104 (str \F feed)
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105 "M101"
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106 "M3 S1\n"]))
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107
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108 (defn raster-epilogue []
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109 (str-join \newline
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110 ["M63 P0"
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111 "M5"
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112 "M2\n"]))
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113
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114
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115 (defn raster-comment [string]
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116 (str "(" (re-gsub #"[()]" "" string) ")"))
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117
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118 (defn filter-keys [fun m]
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119 (select-keys m (filter fun (keys m))))
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120
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121 (def filter-keys (preserve-meta filter-keys))
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122
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123 (defn filter-vals [fun m]
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124 (into {} (filter (comp fun val) m)))
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125
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126 (def filter-vals (preserve-meta filter-vals))
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127
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128 (defn frame-hash->bufferedImage
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129 [frame-hash]
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130 (let [data (meta frame-hash)
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131 image (BufferedImage. (:width data) (:height data) BufferedImage/TYPE_INT_BGR)]
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132
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133 (doall (for [element frame-hash]
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134 (let [coord (key element)
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135 rgb (val element)
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136 packed-RGB
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137 (+ (bit-shift-left (:r rgb) 16)
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138 (bit-shift-left (:g rgb) 8)
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139 (:b rgb))]
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140 (.setRGB image (first coord) (last coord) packed-RGB))))
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141 image))
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142
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143 (defmulti display "Creates a JFrame and displays a buffered image" class)
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144
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145 (defn- makePanel [image] (proxy [Panel] [] (paint [g] (.drawImage g image 0 0 nil))))
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146
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147 (defn select-row [x window]
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148 (filter-keys (comp (partial = x) first) window))
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149
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150
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151
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152 (defmethod display
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153 BufferedImage [image]
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154 (let [panel (makePanel image)
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155 frame (JFrame. "Oh Yeah!")]
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156 (.add frame panel)
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157 (.pack frame)
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158 (.setVisible frame true )
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159 (.setSize frame(.getWidth image) (.getHeight image))))
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160
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161 (defmethod display
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162 ImagePlus [image]
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163 (display (.getBufferedImage image)))
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164
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165 (defmethod display
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166 clojure.lang.PersistentHashMap [frame-hash]
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167 (display (frame-hash->bufferedImage frame-hash)))
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168
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169 (defmethod display
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170 clojure.lang.PersistentArrayMap [frame-hash]
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171 (display (frame-hash->bufferedImage frame-hash)))
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172
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173
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174
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175
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176
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177 ;this is a sequence of rows
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178
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179 ;(defn span [row]
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180 ; (let [sorted-row (sort #(< (first %1) (first %2)) row)]
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181 ; (vector (first sorted-row) (last sorted-row))))
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182
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183
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184 (defn row->gcode [[x-dpi y-dpi] row]
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185 (let [[x1 y1] (first row)
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186 [x2 y2] (last row)]
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187 (str (format "G0 X%.3f Y%.3f\n"
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188 (float (* x1 (/ x-dpi)))
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189 (float (* y1 (/ y-dpi))))
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190
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191 (format "G1 X%.3f Y%.3f\n"
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192 (float (* x2 (/ x-dpi)))
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193 (float (* y2 (/ y-dpi)))))))
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194
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195 (defn gather-row [row]
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196 (let [base [[(first (first row)) (first (first row))]]]
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197 ; (println base)
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198 (reduce
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199 (fn colapse [collection new-n]
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200
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201 (let [collection (apply vector collection)
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202 prevoius (last (last collection))
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203 range-start (first (last collection))]
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204 ; (println new-n)
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205 ; (println prevoius)
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206 ; (println range-start)
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207 (if (<= new-n (+ prevoius 1))
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208 (do ;(println "join")
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209 ;(println (butlast collection))
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210 (conj (apply vector (butlast collection)) (vector range-start new-n)))
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211 (conj collection (vector new-n new-n)))))
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212
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213 base
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214 (map first row))))
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215
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216
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217
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218 (defn row->gmask [[x-dpi y-dpi] forward? row]
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219
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220 (let [start (float (* (/ x-dpi) (first (first row))))]
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221
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222 (let [preamble (if forward?
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223 (str
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224 (format "0 0 0 %.3f\n" start)
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225 (format "0 0 1 %.3f\n" start)))
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226 body
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227 (for [[x y] (gather-row row)]
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228 (let [x (float (* x (/ x-dpi)))
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229 y (float (* y (/ x-dpi)))]
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230 (if forward?
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231 (str (format "0 0 1 %.3f\n" x)
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232 (format "0 1 1 %.3f\n" y))
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233
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234 (str (format "0 0 0 %.3f\n" x)
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235 (format "0 1 0 %.3f\n" y)))))]
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236
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237 (str preamble (str-join "" body)))))
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238
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239
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240
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241 (defn make-rows [pic]
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242
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243 (map (partial sort #(< (first %1) (first %2)))
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244 (partition-by last
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245 (sort (fn [[x1 y1][x2 y2]] (> y2 y1))
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246 (map first (filter-vals (partial = black) pic))))))
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247
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248
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249
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250 (defn generate-gmask [pic]
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251
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252 (str "1 0 0 0\n"
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253 (str-join "" (map (fn [[index row]]
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254 (row->gmask dpi (odd? index) row))
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255 (indexed (make-rows pic))))))
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256
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257 ;; 1 0 0 0
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258 ;; 0 0 1 2.881
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259 ;; 0 0 0 2.881
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260 ;; 0 1 0 2.863
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261 ;; 0 0 0 2.769
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262 ;; 0 1 0 2.751
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263 ;; 0 0 0 2.729
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264 ;; 0 1 0 2.617
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265 ;; 0 0 0 2.593
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266 ;; 0 1 0 2.561
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267 ;; 0 0 0 2.463
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268 ;; 0 1 0 2.445
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269 ;; 0 0 0 2.385
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270 ;; 0 1 0 2.317
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271 ;; 0 0 0 2.253
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272 ;; 0 1 0 2.233
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273 ;; 0 0 0 2.177
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274
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275
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276
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277 (defn generate-gcode [pic]
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278 (str (raster-preamble)
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279
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280
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281 (str-join "" (map (partial row->gcode dpi) (make-rows pic)))
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282 (raster-epilogue)))
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283
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284
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285
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286 (defn rotate [degrees #^ImagePlus image]
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287 (.rotate (.getChannelProcessor image) degrees)
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288 image)
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289
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290 (defn map-keys [f m]
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291 (into {} (map (fn [[key val]] [(f key) val]) m)))
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292
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293
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294
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295 (defn invert-frame-hash [pic]
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296 (map-keys (fn [[x y]] [x (- (:height (meta pic)) y 1)]) pic ))
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297
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298
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299 (defn generate-files [pic]
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300 (let [image (invert-frame-hash (b&w (frame-hash (rotate 180 (ImagePlus. pic)))))]
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301 (spit "/home/r/kevin/out.ngc" (generate-gcode image))
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302 (spit "/home/r/kevin/out.gmask" (generate-gmask image))
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303 image))
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304
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305
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306
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307 ;;;; testing
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308
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309 (defn init []
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310 (let [stuff
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311
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312 (bound-fn []
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313
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314 (do
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315 (println "hi everyone")
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316 (def img "/home/r/kevin/sing.png")
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317 (def pic (frame-hash (let [image (ImagePlus. img)]
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318 (.rotate (.getChannelProcessor image) 180)
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319 image)))
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320
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321
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322 (def test-image
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323 (invert-frame-hash (b&w (frame-hash (rotate 180 (ImagePlus. img))))))
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324
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325 (defn test-gmask []
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326 (println (str-join "" (take 170 (generate-gmask test-image)))))
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327
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328 (println "ALL variables initialized!")
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329
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330 ))]
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331 (.start
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332 (Thread. stuff))))
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333
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334
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335
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336 (defn thread-test []
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337
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338 (let [temp *out*]
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339 (.start
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340 (Thread.
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341 (fn []
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342 (with-bindings {#'clojure.core/*out* temp}
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343 (Thread/sleep 5000)
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344 (println "hi")))))))
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