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*~
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LICENSE
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
LICENSE ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM
CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
Copyright (C) 1989, 1991 Free Software Foundation, Inc., <http://fsf.org/>
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
1. DEFINITIONS
Preamble
"Contribution" means:
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
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software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
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How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
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{description}
Copyright (C) {year} {fullname}
This program is free software; you can redistribute it and/or modify
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Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
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Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
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The hypothetical commands `show w' and `show c' should show the appropriate
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You should also get your employer (if you work as a programmer) or your
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necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
{signature of Ty Coon}, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
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in any resulting litigation.

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# Introduction to dactyl-cave
TODO: write [great documentation](http://jacobian.org/writing/great-documentation/what-to-write/)

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(defproject dactyl-cave "0.1.0-SNAPSHOT"
:description "FIXME: write description"
:url "http://example.com/FIXME"
:license {:name "Eclipse Public License"
:url "http://www.eclipse.org/legal/epl-v10.html"}
:dependencies [[org.clojure/clojure "1.5.1"]
[unicode-math "0.2.0"]
[scad-clj "0.1.0"]])

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(ns dactyl-cave.alternathumb
(:use [scad-clj.scad])
(:use [scad-clj.model])
(:use [unicode-math.core])
(:require [dactyl-cave.key :as key])
(:require [dactyl-cave.cave :as cave]))
(defn- scoop [angle radius [x y :as direction] shape]
(->> shape
(translate [0 0 radius])))
(defn thumb-x+x-column [shape]
(let [α (/ π 12)
radius (/ (/ key/pillar-depth 2)
(Math/sin (/ α 2)))
spin-shape (->> shape
(translate [0 0 (+ (- key/full-height)
(- radius))]))]
(translate
[0 0 (+ radius key/full-height)]
(union
spin-shape
(->> spin-shape
(rotate (- α) [1 0 0]))))))
(defn thumb-2x-column [shape]
(let [α (/ π 12)
radius (/ (/ key/pillar-depth 2)
(Math/sin (/ α 2)))
spin-shape (->> shape
(translate [0 0 (+ (- key/full-height)
(- radius))]))]
(translate
[0 0 (+ radius key/full-height)]
(union
(->> spin-shape
(rotate (* α -1/2) [1 0 0]))))))
(defn thumb-2x-row [shape]
(let [α (/ π 12)
radius (/ (/ key/pillar-depth 2)
(Math/sin (/ α 2)))
spin-shape (->> shape
(translate [0 0 (+ (- key/full-height)
(- radius))]))]
(translate
[0 0 (+ radius key/full-height)]
(union
(->> spin-shape
(rotate (* α 1) [1 0 0]))))))
(defn spin-thumb [column shape]
(let [β (/ π 36)
radius (/ (/ (+ key/pillar-width 5) 2)
(Math/sin (/ β 2)))]
(->>
(translate
[0 0 (- (- radius key/full-height))]
(->> shape
(translate [0 0 (- radius key/full-height)])
(rotate (* column β) [0 1 0])))
(translate [key/pillar-width 0 0])
(rotate (/ π 12) [0 0 1])
#_(rotate (/ π -12) [0 1 0])
#_(rotate (/ π 6) [0 0 1])
(translate [-7 -47 35]))))
(defn thumb-layout [shape]
(union
(spin-thumb 2 (thumb-x+x-column shape))
(spin-thumb 1 (thumb-x+x-column shape))
(spin-thumb 0 (thumb-2x-column shape))
(spin-thumb 1/2 (thumb-2x-row shape))))
(defn support [shape]
(hull
shape
(extrude-linear {:height 10 :twist 0 :convexity 0}
(project (hull shape)))))
(defn thumb-support [shape]
(union
(support (union
(spin-thumb 2 (thumb-x+x-column shape))
(spin-thumb 1 (thumb-x+x-column shape))
(spin-thumb 0 (thumb-2x-column shape))))
(support (union
(spin-thumb 0 (thumb-2x-column shape))
(spin-thumb 1/2 (thumb-2x-row shape))))
))
(def bottom
(translate [0 0 -100]
(cube 2000 2000 200))
)
#_(def thumb-base
(difference
(hull
(thumb-layout (translate [0 0 (/ key/pillar-height -2)]
(scale [1 1 1/10] key/full-pillar)))
(extrude-linear {:height 10 :twist 0 :convexity 0}
(project (hull (thumb-layout key/full-pillar)))))
bottom
(thumb-layout key/keyswitch-full-hole)))
(def thumb-base
(union
(thumb-support (scale [1 1 1/10] key/full-pillar))
#_(->> (cube 150 150 50)
(translate [150 75 25])))
)
(defn move-to-corner [shape]
(translate [-265 -215 0] shape))
(def thumb-cluster
(difference
(translate [0 0 -20]
(difference
(union
(thumb-layout key/pillar)
thumb-base)
(thumb-layout key/keyswitch-full-hole)))
bottom))
(spit "alternathumb.scad"
(write-scad (scale [(/ 25.4 90) (/ 25.4 90) (/ 25.4 90)]
#_thumb-cluster
(union
(mirror [1 0 0] (move-to-corner thumb-cluster))
#_(->> (move-to-corner thumb-cluster)
(mirror [1 0 0]))
#_cave/base
#_cave/fingers
)
#_(mirror [1 0 0]
(difference
(move-to-corner thumb-cluster)
cave/base
))
)))

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(ns dactyl-cave.cave
(:use [scad-clj.scad])
(:use [scad-clj.model])
(:use [unicode-math.core])
(:use [dactyl-cave.key]))
(defn key-place [column row shape]
(let [α (/ π 12)
row-radius (+ (/ (/ pillar-depth 2)
(Math/sin (/ α 2)))
full-height)
row-placed-shape (->> shape
(translate [0 0 (- row-radius)])
(rotate (* α (- 2 row)) [1 0 0])
(translate [0 0 row-radius]))
β (/ π 36)
column-radius (+ (/ (/ (+ pillar-width 127/90) 2)
(Math/sin (/ β 2)))
full-height)
column-offset (condp = column
2 [0 127/45 -254/45]
4 [0 (/ pillar-depth -3) 254/45]
5 [0 (/ pillar-depth -4) 254/45]
[0 0 0])
column-angle (if (<= column 4)
(* β (- 2 column))
(* β -3.25))
placed-shape (->> row-placed-shape
(translate [0 0 (- column-radius)])
(rotate column-angle [0 1 0])
(translate [0 0 column-radius])
(translate column-offset))]
(translate [0 0 127/18]
(rotate (/ π 12) [0 1 0]
placed-shape))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Limits
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(def bottom-limit
(->> (cube (* pillar-width 17.75)
(* pillar-depth 17)
508/9)
(translate [(+ (/ pillar-width 2) 127/45)
0 -254/9])))
(def back-limit
(->> (cube (* pillar-width 9)
(* pillar-depth 2)
254/3)
(translate [pillar-width
(+ (* pillar-depth 4.1))
254/9])))
(def front-right-limit
(->> (cube (* pillar-width 2)
(* pillar-depth 2)
254/3)
(translate [(+ (* pillar-width 4.125))
(+ (* pillar-depth -3.25))])))
(def front-left-limit
(->> (cube (* pillar-width 2.5)
(* pillar-depth 2)
254/3)
(translate [(+ (* pillar-width -3))
(+ (* pillar-depth -3))
254/9])))
(def front-limit
(->> (cube (* pillar-width 9)
(* pillar-depth 2)
254/3)
(translate [(* pillar-width 1/2) (+ (* pillar-depth -4.25)) 254/9])))
(* (/ 25.4 90) pillar-depth (- 3.1 -3.2))
(def left-limit
(->> (cube (* pillar-width 1)
(* pillar-depth 8)
254/3)
(translate [(+ (* pillar-depth -3.25)) 0 254/9])))
(def right-limit
(->> (cube (* pillar-width )
(* pillar-depth 8)
1016/9)
(translate [(+ (* pillar-depth 5.5)) 0 254/9])) )
(* (/ 25.4 90) (- (- (* pillar-depth 5.4) (* pillar-width 1/2))
(+ (* pillar-depth -3.25) (* pillar-width 1/2))
))
(def limits
(union
#_front-right-limit
front-left-limit
front-limit
left-limit
right-limit
bottom-limit
back-limit))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Base
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(def main-sphere
(let [radius (/ (/ pillar-depth 2)
(Math/sin (/ (/ π 36) 2)))]
(->> (sphere radius)
(translate [(* pillar-width 2.5) 0 (+ radius 127/90)]))) )
(def base-cube
(->> (cube (* pillar-width 7.75)
(* pillar-depth 7)
508/9)
(translate [(+ (/ pillar-width 2) 2921/450)
0 254/9])))
(def base
(difference
base-cube
main-sphere
limits))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Walls
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
#_(def wall-sphere
(let [radius (/ (/ pillar-depth 2)
(Math/sin (/ (/ π 36) 2)))]
(->> (sphere radius)
(scale [1 2/3 1])
(translate [(* pillar-width 2.5) 0 (+ radius 5 (* pillar-depth ))]))))
(def wall-sphere
(let [radius (/ (/ pillar-depth 2)
(Math/sin (/ (/ π 36) 2)))]
(->> (sphere radius)
(scale [1 2/3 1])
(translate [0 0 radius])
(translate [0 0 127/18])
(rotate (/ π 12) [0 1 0])
(translate [0 0 (* pillar-depth 3/4)]))))
(def wall-thickness 127/30)
(def back-wall
(difference
(translate [0 (- wall-thickness) 0] back-limit)
back-limit
right-limit
left-limit
bottom-limit
wall-sphere))
(def walls
(difference
(union
(translate [0 (- wall-thickness) 0] back-limit)
(translate [(- wall-thickness) 0 0] right-limit)
(translate [0 wall-thickness 0] front-limit)
(translate [wall-thickness 0 0] left-limit)
)
wall-sphere
limits))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Wire holes
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(def teensy-center [(* -1.6 pillar-width)
(* 2.8 pillar-depth)
254/45])
(def teensy-tray-slot
(->> (cube (* 1.125 pillar-width)
40
508/45)
(translate teensy-center)))
(def hole-destination
(->> (cube 5.7 5.7 5.7)
(translate [(first teensy-center)
(second teensy-center)
2.8 #_3.1])))
(defn bottom-cube [column row]
(->> (cube 6 6 6)
(key-place column row)
(project)
(extrude-linear {:height 5.7 :twist 0 :convexity 0})
(translate [0 0 2.8])))
(defn wire-hole [column row]
(union
(hull
(key-place column row (cube 6 6 keyswitch-height))
(bottom-cube column row))
(hull
hole-destination
(bottom-cube column row))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Full Model
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(def fingers
(let [all-key-coords (for [column (range 0 6)
row (range 0 5)
;; Removing bottom left key
:when (or (not= column 0)
(not= row 4))]
[column row])
middle-key-coords (for [column (range 0 6)
row (range 1 4)
;; Removing bottom left key
:when (or (not= column 0)
(not= row 4))]
[column row])
top-key-coords (for [column (range 0 6)]
[column 0])
bottom-key-coords (conj (for [column (range 1 6)]
[column 4])
[0 3])
]
(difference
(union base
#_walls
(apply union
(map #(key-place (first %) (second %)
(->> (cube pillar-width pillar-depth
(* 3 pillar-height))
(translate [0 0 (/ pillar-height -2)])))
all-key-coords)))
(apply union
(concat
(map #(key-place (first %) (second %) keyswitch-full-hole)
middle-key-coords)
(map #(key-place (first %) (second %) keyswitch-bottom-hole)
top-key-coords)
(map #(key-place (first %) (second %) (mirror [0 -1 0] keyswitch-bottom-hole))
bottom-key-coords)
))
limits
teensy-tray-slot)))
(def wire-network
(union
(wire-hole 0 0)
(wire-hole 1 0)
(wire-hole 2 0)
(wire-hole 3 0)
(wire-hole 4 0)
(wire-hole 5 0)
(wire-hole 0 1)
(wire-hole 0 2)
(wire-hole 0 3)
(wire-hole 0 4)
(wire-hole 1 4)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Actual Output
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
#_(spit "key.scad"
(write-scad (difference
pillar
)))
(spit "key.scad"
(write-scad (difference
(union
#_walls
#_wall-sphere
#_fingers
(difference fingers wire-network)
#_(mirror [-1 0 0]
(difference fingers wire-network))
)
#_(cube 400 800 800)
)))
#_(spit "key.scad"
(write-scad (scale [(/ 25.4 90) (/ 25.4 90) (/ 25.4 90)]
(difference
(union
#_walls
#_wall-sphere
#_fingers
(difference fingers wire-network)
#_(mirror [-1 0 0]
(difference fingers wire-network))
)
#_(cube 400 800 800)
))))
#_(spit "key.scad"
(write-scad (scale [(/ 25.4 90) (/ 25.4 90) (/ 25.4 90)]
(difference
fingers
wire-hole-1
wire-hole-2))))
#_(spit "key.scad"
(write-scad (scale [(/ 25.4 90) (/ 25.4 90) (/ 25.4 90)]
(differe
#_wall
#_base
#_rim
#_(mirror [1 0 0] fingers)
fingers
wire-hole-1))))
#_(spit "key.scad"
(write-scad (scale [(/ 25.4 90) (/ 25.4 90) (/ 25.4 90)]
(union
fingers
(->> fingers
project
(extrude-linear {:height 1 :twist 0 :convexity 0})
(scale [1.5 1.15 1])
)
)
)))

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(ns dactyl-cave.core)
(defn foo
"I don't do a whole lot."
[x]
(println x "Hello, World!"))

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(ns dactyl-cave.key
(:use [scad-clj.scad])
(:use [scad-clj.model])
(:use [unicode-math.core]))
(def tw 13.969999999999999) ;; Top width
(def smh 0.98044) ;; Side margin height
(def pw 0.8128) ;; Peg width
(def ph 3.5001199999999995) ;; Peg height
(def pgh 5.00888) ;; Peg gap height
(def keyswitch-height (+ smh ph pgh ph smh))
(def keyswitch-width (+ pw tw pw))
(def plate-height 254/45)
(defn- flip-path [points] (map (partial map -) points))
(def keyswitch-plate-hole-shape
(polygon [[0.8128 0] [0.8128 0.98044] [0.0 0.98044] [0.0 4.48056] [0.8128 4.48056] [0.8128 9.48944] [0.0 9.48944] [0.0 12.98956] [0.8128 12.98956] [0.8128 13.969999999999999] [14.7828 13.969999999999999] [14.7828 12.98956] [15.5956 12.98956] [15.5956 9.48944] [14.7828 9.48944] [14.7828 4.48056] [15.5956 4.48056] [15.5956 0.98044] [14.7828 0.98044] [14.7828 0]]))
(def keyswitch-plate-hole
(->> keyswitch-plate-hole-shape
(extrude-linear {:height plate-height :twist 0 :convexity 0})
(translate (map #(/ (- %) 2) [keyswitch-width keyswitch-height 0]))
(translate [0 0 1])))
(def hole-height 127/18)
(def pillar-width (+ keyswitch-width 127/45))
(def pillar-height (+ hole-height (/ plate-height 2)))
(def pillar-depth (+ keyswitch-height 127/30))
(def keyswitch-full-hole
(->>
(union
keyswitch-plate-hole
(->> (cube (/ ph 2) pillar-depth (* plate-height 2))
(translate [(* tw -1/4) 0 0]))
(->> (cube (/ ph 2) pillar-depth (* plate-height 2))
(translate [(* tw 1/4) 0 0]))
(translate
[0 0 (/ hole-height -2)]
(cube keyswitch-width
keyswitch-height
hole-height)))
(translate [0 0 hole-height])))
(def keyswitch-bottom-hole
(->>
(union
keyswitch-plate-hole
(->> (cube (/ ph 2) (/ pillar-depth 2) (* plate-height 2))
(translate [(* tw -1/4) (/ pillar-depth -2) 0]))
(->> (cube (/ ph 2) (/ pillar-depth 2) (* plate-height 2))
(translate [(* tw 1/4) (/ pillar-depth -2) 0]))
(translate
[0 0 (/ hole-height -2)]
(cube keyswitch-width
keyswitch-height
hole-height)))
(translate [0 0 hole-height])))
(def full-pillar
(->> (cube pillar-width pillar-depth
pillar-height)
(translate [0 0 (/ pillar-height 2)])))
(def pillar
(difference
full-pillar
keyswitch-full-hole))
(def key-height 127/10)
(def pillar-with-fake-key
(union pillar
(->> (cube (+ -0 pillar-width) (+ -0 pillar-depth) key-height)
(translate [0 0 (+ (/ key-height 2) pillar-height 127/450)]))))
(def full-height (+ pillar-height key-height 127/450))

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(ns dactyl-cave.text
(:use [scad-clj.scad])
(:use [scad-clj.model])
(:import (java.awt Font RenderingHints)
(java.awt.font FontRenderContext)
(java.awt.geom PathIterator)))
(def segment-type
{PathIterator/SEG_CLOSE :close
PathIterator/SEG_CUBICTO :cubic-to
PathIterator/SEG_LINETO :line-to
PathIterator/SEG_MOVETO :move-to
PathIterator/SEG_QUADTO :quad-to})
;; How many points are specified for each segment type
(def segment-length
{PathIterator/SEG_CLOSE 0
PathIterator/SEG_CUBICTO 3
PathIterator/SEG_LINETO 1
PathIterator/SEG_MOVETO 1
PathIterator/SEG_QUADTO 2})
(defn path-iterator->segments
"Converts a PathIterator into a sequence of segments of the form [segment-type [& points]]"
[^PathIterator path-iterator]
(if (not (.isDone path-iterator))
(let [coords (double-array (* 2 (apply max (vals segment-length))))
segment-code (.currentSegment path-iterator coords)]
(cons [(segment-type segment-code)
(take (segment-length segment-code) (partition 2 coords))]
(lazy-seq (path-iterator->segments (doto path-iterator (.next))))))))
(defn quad->fn
"Returns the parametric control equation f(t), 0 <= t <= 1
for the quadratic interpolation of 3 points."
[cp p1 p2]
(fn [t]
(letfn [(interp [a b c] (+ (* (Math/pow (- 1 t) 2) a)
(* 2 t (- 1 t) b)
(* (Math/pow t 2) c)))]
[(apply interp (map first [cp p1 p2]))
(apply interp (map second [cp p1 p2]))])))
(defn cubic->fn
"Returns the parametric control equation f(t), 0 <= t <= 1
for the cubic interpolation of 4 points."
[cp p1 p2 p3]
(fn [t]
(letfn [(interp [a b c d]
(+ (* (Math/pow (- 1 t) 3) a)
(* 3 t (Math/pow (- 1 t) 2) b)
(* 3 (Math/pow t 2) (- 1 t) c)
(* (Math/pow t 3) d)))]
[(apply interp (map first [cp p1 p2 p3]))
(apply interp (map second [cp p1 p2 p3]))])))
(defn segments->lines
"Takes a sequence of segments of the form [segment-type [& points]]
and transforms each segment into a sequence of interpolated points"
[segments]
(reductions (fn [prev-line-points [segment-type control-points]]
#_(println segment-type)
(condp = segment-type
:move-to control-points
:line-to control-points
:quad-to (map (apply quad->fn
(last prev-line-points)
control-points)
(range 1/10 11/10 1/10))
:cubic-to (map (apply cubic->fn
(last prev-line-points)
control-points)
(range 1/10 11/10 1/10))))
(last (rest (first segments)))
(rest segments)))
(defn path2d [points]
(let [path (doto (java.awt.geom.Path2D$Double.)
(.moveTo (-> points first first)
(-> points first second)))]
(doseq [point (rest points)]
(.lineTo path (first point) (second point)))
path))
(defn split-intersecting [paths]
(let [polygons (map path2d paths)
starting-points (map first paths)]
(reduce (fn [acc path]
(let [polygon (path2d path)]
(if (some #(.contains % (-> path first first) (-> path first second))
(:polygons acc))
(merge-with concat acc
{:difference [path]})
(merge-with concat acc
{:polygons [polygon]
:union [path]}))))
{:polygons []
:union []
:difference []}
paths)))
(defn text-polygon [font size text]
(let [frc (FontRenderContext. nil
RenderingHints/VALUE_TEXT_ANTIALIAS_DEFAULT
RenderingHints/VALUE_FRACTIONALMETRICS_DEFAULT)
path-iter (-> (Font. font Font/PLAIN size)
(.createGlyphVector frc text)
(.getOutline)
(.getPathIterator nil))
paths (->> (path-iterator->segments path-iter)
(partition-by #(= (first %) :close))
(take-nth 2)
(map segments->lines)
(map flatten)
(map (partial partition 2)))
split-paths (split-intersecting paths)]
(difference
(apply union (map polygon (:union split-paths)))
(apply union (map polygon (:difference split-paths))))))
(spit "/Users/madereth/text.scad"
(write-scad
(->> "Anonymous Pro" #_(str (java.util.Date.))
(text-polygon "Anonymous Pro" 12)
(extrude-linear {:height 50 :twist 0 :convexity 0}))))
(spit "/Users/madereth/text.scad"
(write-scad
(->> "Anonymous Pro" #_(str (java.util.Date.))
(text-polygon "Anonymous Pro" 12)
(extrude-linear {:height 12 :twist 0 :convexity 0}))))

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(ns dactyl-cave.thumb
(:use [scad-clj.scad])
(:use [scad-clj.model])
(:use [unicode-math.core])
(:require [dactyl-cave.key :as key])
(:require [dactyl-cave.cave :as cave]))
(defn thumb-place [column row shape]
(let [α (/ π 12)
row-radius (+ (/ (/ key/pillar-depth 2)
(Math/sin (/ α 2)))
key/full-height)
β (/ π 36)
column-radius (+ (/ (/ (+ key/pillar-width 5) 2)
(Math/sin (/ β 2)))
key/full-height)]
(->> shape
(translate [0 0 (- row-radius)])
(rotate (* α row) [1 0 0])
(translate [0 0 row-radius])
(translate [0 0 (- column-radius)])
(rotate (* column β) [0 1 0])
(translate [0 0 column-radius])
(translate [key/pillar-width 0 0])
(rotate (/ π 12) [0 1 0])
(rotate (* π (- 1/4 1/16)) [0 0 1])
(rotate (/ π 12) [1 1 0])
(translate [254/45 127/15 1778/45]))))
(defn thumb-2x-column [shape]
(thumb-place 0 -1/2 shape))
(defn thumb-2x+1-column [shape]
(union (thumb-place 1 -1/2 shape)
(thumb-place 1 1 shape)))
(defn thumb-1x-column [shape]
(union (thumb-place 2 -1 shape)
(thumb-place 2 0 shape)
(thumb-place 2 1 shape)))
(defn thumb-layout [shape]
(union
(thumb-2x-column shape)
(thumb-2x+1-column shape)
(thumb-1x-column shape)))
(defn support [shape]
(hull
shape
(extrude-linear {:height 127/45 :twist 0 :convexity 0}
(project (hull shape)))))
(defn thumb-support [shape]
(let [column-supports
(union
(support (thumb-2x-column shape))
(support (thumb-2x+1-column shape))
(support (thumb-1x-column shape)))]
(union column-supports
(support column-supports))))
(fn [])
(def bottom
(translate [0 0 -254/9] (cube 5080/9 5080/9 508/9)))
(def thumb-base
(thumb-support (scale [1 1 1/10] key/full-pillar)))
#_(defn move-to-corner [shape]
(translate [-6731/90 -5461/90 0] shape))
(defn move-to-corner [shape]
(translate [(+ -6731/90 10) (- -5461/90 10) 0] shape))
(/ -6731 90.0) -74.78888888888889
(double -5461/90) -60.67777777777778
(def thumb-cluster
(difference
(translate [0 0 -254/45]
(difference
(union
(thumb-layout key/pillar)
thumb-base)
(thumb-layout key/keyswitch-full-hole)))
bottom))
(def connection-stems
(difference
(hull (union
(->> (cylinder 127/90 508/9)
(translate [-0 -2413/45 0]))
(->> (cylinder 127/90 508/9)
(translate [-127/3 -0 0]))
(->> (cylinder 127/90 508/9)
(translate [-2159/30 -127/5 0]))
(->> (cylinder 127/90 508/9)
(translate [-508/9 -381/5 0]))))
bottom
cave/main-sphere
(translate [0 0 -254/45]
(thumb-layout key/keyswitch-full-hole))))
(def wire-network
(apply union
(for [[column row] [[0 -1/2]
[1 -1/2]
[1 1]
[2 -1]
[2 0]
[2 1]]]
(let [middle-hole (->> (thumb-place column row (cube 6 6 6))
(translate [0 0 -127/9])
move-to-corner)]
#_(thumb-place column row (sphere 127/9))
(union (hull (->> (cube 254/45 254/45 key/keyswitch-height)
(thumb-place column row)
move-to-corner)
middle-hole)
(hull middle-hole (cave/bottom-cube 0 4))
(hull (cave/bottom-cube 0 4) cave/hole-destination))))))
(spit "thumb.scad"
(write-scad (difference
(union
(move-to-corner thumb-cluster)
connection-stems
#_cave/base
#_cave/fingers)
cave/base
wire-network)))
#_(spit "thumb.scad"
(write-scad (scale [(/ 25.4 90) (/ 25.4 90) (/ 25.4 90)]
(mirror [-1 0 0]
(difference
(union
(move-to-corner thumb-cluster)
connection-stems
#_cave/base
#_cave/fingers)
cave/base
wire-network)))))
#_(spit "thumb.scad"
(write-scad (scale [(/ 25.4 90) (/ 25.4 90) (/ 25.4 90)]
(mirror [-1 0 0]
(difference
(union
(move-to-corner thumb-cluster)
connection-stems
#_cave/base
#_cave/fingers)
cave/base
wire-network)))))
(spit "one-piece.scad"
(write-scad
(mirror [-1 0 0]
(union (difference cave/fingers cave/wire-network)
(difference
(union
(move-to-corner thumb-cluster)
connection-stems)
cave/base
wire-network)))))

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(ns scad-demo.core
(:use [scad-clj.scad])
(:use [scad-clj.model]))
(def primitives
(union
(union)
(->> (sphere 50))))
(spit "post-demo.scad"
(write-scad primitives))

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#Leiningen
#Wed Mar 04 17:30:05 PST 2015
version=0.1.0-SNAPSHOT
revision=9e72dea9b02c89fb782537b8e1af7cda4f11c995\n
groupId=dactyl-cave
artifactId=dactyl-cave

1
target/repl-port 100644
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52476

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([:dependencies ([cider/cider-nrepl "0.8.0"] [org.clojure/clojure "1.5.1"] [unicode-math/unicode-math "0.2.0"] [scad-clj/scad-clj "0.1.0"] [org.clojure/tools.nrepl "0.2.6" :exclusions ([org.clojure/clojure]) :scope "test"] [clojure-complete/clojure-complete "0.2.3" :exclusions ([org.clojure/clojure]) :scope "test"])])

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(ns dactyl-cave.core-test
(:require [clojure.test :refer :all]
[dactyl-cave.core :refer :all]))
(deftest a-test
(testing "FIXME, I fail."
(is (= 0 1))))