Mercurial > lasercutter

     1 (ns clojureDemo.appeture)

     2 

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

     4 (use 'clojure.contrib.accumulators)

     5 

     6 "right now this only will work on odd square arrays"

     7 

     8 (def rrr {[0 0] 20 , [1 0] 20, [2 0] 20

     9 	  [0 1]  0 , [1 1]  0, [2 1]  0

    10 	  [0 2]  0 , [1 2]  0, [2 2]  0})

    11 

    12 (def rrrr {[0 0] 20 , [1 0] 20, [2 0] 20 , [3 0] 20, [4 0] 20,

    13 	   [0 1] 20 , [1 1] 20, [2 1] 20 , [3 1] 20, [4 1] 20,

    14 	   [0 2]  0 , [1 2]  0, [2 2]  0 , [3 2] 0,  [4 2] 0,

    15 	   [0 3]  0 , [1 3]  0, [2 3]  0 , [3 3] 0,  [4 3] 0,

    16 	   [0 4]  0 , [1 4]  0, [2 4]  0 , [3 4] 0,  [4 4] 0,})

    17 

    18 (defn vector-mul

    19   [mul vect]

    20   (apply vector (map #(* mul %) vect)) )

    21 

    22 (defn vector-sum

    23   ([] 0)

    24   ([& args] 

    25   (apply vector (reduce #(map + %1 %2) args))))

    26 

    27 (defn vector-sub

    28   [vector1 vector2]

    29   (vector-sum vector1 (vector-mul -1 vector2)))

    30  

    31 (defn vector-dot

    32   [vector1 vector2]

    33   (reduce + (map * vector1 vector2)))

    34 

    35 (defn center

    36   [window]

    37   (let [coords (keys window)]

    38   (vector-mul (/ 1 (count coords)) (apply vector-sum coords))))

    39 

    40 (defn window-segmentate

    41   [window line]

    42   (let [center (center window)]

    43   (letfn [(path   [window] (filter (fn [point] (apply = (line center point))) (keys window)))

    44 	  (top    [window] (filter (fn [point] (apply > (line center point))) (keys window)))

    45 	  (bottom [window] (filter (fn [point] (apply < (line center point))) (keys window)))]

    46      {:top (top window) :bottom (bottom window) :line (path window)})))

    47 

    48 (defn diag1

    49   [window]

    50   (window-segmentate window (fn [center point] (list (first  (vector-sub point center)) (-(last  (vector-sub point center)))))))

    51 

    52 (defn diag2

    53   [window]

    54 (window-segmentate window  (fn [center point] (list (first (vector-sub point center)) (last  (vector-sub point center))))))

    55  

    56 (defn vert

    57   [window]

    58 (window-segmentate window  (fn [center point] (list (first (vector-sub point center)) 0))))

    59  

    60 (defn horiz

    61   [window]

    62 (window-segmentate window  (fn [center point] (list 0 (last (vector-sub point center))))))

    63 

    64 

    65  

    66 

    67  

    68 

    69 (defn lines

    70   [window]    

    71     (let [lines (list (vert window) (horiz window) (diag1 window) (diag2 window))]

    72       lines))

    73 ;This is the wrong model.  Higher level processors should set these paramaters, and 

    74 ; juggle them around if they aren't getting anything they understand.

    75 

    76 

    77 

    78 (defn stats-base

    79   [sections window sel-fun]

    80  (let [stats-top    (add-items empty-mean-variance (map window (:top sections)))

    81 	stats-bottom (add-items empty-mean-variance (map window (:bottom sections)))]

    82    (let [ var1 (:variance stats-top) mean1 (:mean stats-top) var2 (:variance stats-bottom) mean2 (:mean stats-bottom)]

    83      (sel-fun var1 mean1 var2 mean2))))

    84 

    85 (defn window-line

    86   [window transformation detection]

    87   (let [x-window (transformation window)]

    88     (first (filter #(stats-base % x-window detection) (lines x-window)))))

    89 	       

    90 (defn window-stats

    91   ([window] (window-stats window identity))

    92   ([window transformation]

    93   (let [x-window (transformation window)]

    94     (map (fn [line] (stats-base line x-window #(list %1 %2 %3 %4))) (lines x-window)))))

    95 

    96 

    97 

    98 

    99 (comment 

   100 

   101 (do (use :reload-all 'clojureDemo.appeture) (in-ns 'clojureDemo.appeture))

   102 

   103 )
author	Robert McIntyre <rlm@mit.edu>
date	Fri, 20 Aug 2010 00:32:44 -0400
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