Update examples to new API

Closes #360.

Examples/example11.hs

@@ -2,8 +2,8 @@
 import Graphics.Implicit
 
 out = union [
-    squareR 0 True (80, 80)
-  , translate (40, 40) $ circle 30
+    square True (V2 80 80)
+  , translate (V2 40 40) $ circle 30
   ]
 
 main = writeSVG 2 "example11.svg" out

Examples/example12.hs

@@ -1,9 +1,10 @@
 -- Example 12 - the rounded union of a square and a circle.
+import Control.Applicative (pure)
 import Graphics.Implicit
 
 out = unionR 14 [
-    squareR 0 (80, 80)
-  , translate (40,40) $ circle 30
+    square True (pure 80) -- pure 80 turns into (V2 80 80)
+  , translate (pure 40) $ circle 30
   ]
 
 main = writeSVG 2 "example12.svg" out

Examples/example13.hs

@@ -1,9 +1,10 @@
 -- Example 13 - the rounded union of a cube and a sphere.
+import Control.Applicative (pure)
 import Graphics.Implicit
 
 out = union [
-    cubeR 0 False (20, 20, 20)
-  , translate (20, 20, 20) $ sphere 15
+    cube False (pure 20) -- same as (V3 20 20 20)
+  , translate (pure 20) $ sphere 15
   ]
 
 main = writeSTL 1 "example13.stl" out

Examples/example16.hs

@@ -1,8 +1,12 @@
+import Control.Applicative (pure)
 import Graphics.Implicit
 import Graphics.Implicit.Definitions
 import Graphics.Implicit.Primitives
 
 roundbox:: SymbolicObj3
-roundbox = implicit (\(x,y,z) -> x^4 + y^4 + z^4 - 15000) ((-20,-20,-20),(20,20,20))
+roundbox =
+  implicit
+    (\(V3 x y z) -> x^4 + y^4 + z^4 - 15000)
+    (pure (-20), pure 20)
 
 main = writeSTL 2 "example16.stl" roundbox

Examples/example17.hs

@@ -1,22 +1,25 @@
 -- Example 17, pulled from our benchmarking suite.
-import Prelude ((<$>), ($), zip3, fmap, fromIntegral, (*), (/))
-import Graphics.Implicit (union, translate, rect3R, writeSTL)
+import Control.Applicative (pure)
+import Prelude ((<$>), ($), zipWith3, fmap, fromIntegral, (*), (/), Bool(..))
+import Graphics.Implicit (cube, union, translate, writeSTL, V3(..))
 import Graphics.Implicit.Definitions (Fastℕ, ℝ, ℝ3, SymbolicObj3)
 
 default (Fastℕ, ℝ)
 
 object2 :: SymbolicObj3
-object2 = squarePipe (10, 10, 10) 1 100
+object2 = squarePipe (pure 10) 1 100
     where
       squarePipe :: ℝ3 -> ℝ -> ℝ -> SymbolicObj3
-      squarePipe (x,y,z) diameter precision =
+      squarePipe (V3 x y z) diameter precision =
             union
             ((\start -> translate start
-               $ cubeR 0 False (diameter, diameter, diameter)
+               $ cube True (pure diameter)
              )
              <$>
-              zip3 (fmap (\n -> (fromIntegral n / precision) * x) [0..100])
-                   (fmap (\n -> (fromIntegral n / precision) * y) [0..100])
-                   (fmap (\n -> (fromIntegral n / precision) * z) [0..100]))
+              zipWith3
+                V3
+                (fmap (\n -> (fromIntegral n / precision) * x) [0..100])
+                (fmap (\n -> (fromIntegral n / precision) * y) [0..100])
+                (fmap (\n -> (fromIntegral n / precision) * z) [0..100]))
 
 main = writeSTL 1 "example17.stl" object2