X-Git-Url: https://gitweb.michael.orlitzky.com/?a=blobdiff_plain;f=src%2FCube.hs;h=077fbbc50180ffbea5e6e000060ae990545fa429;hb=3d197ab1a23d654d60617db6559daed195f1e016;hp=0122aea298157326439dafebbabb0109ed758476;hpb=70120aad0e7b2126b81e8d444fd7591c4badd45f;p=spline3.git

diff --git a/src/Cube.hs b/src/Cube.hs
index 0122aea..077fbbc 100644
--- a/src/Cube.hs
+++ b/src/Cube.hs
@@ -15,7 +15,8 @@ data Cube = Cube { h :: Double,
                    i :: Int,
                    j :: Int,
                    k :: Int,
-                   fv :: FunctionValues }
+                   fv :: FunctionValues,
+                   tetrahedra_volume :: Double }
             deriving (Eq)
 
 
@@ -26,7 +27,8 @@ instance Arbitrary Cube where
       j' <- choose (coordmin, coordmax)
       k' <- choose (coordmin, coordmax)
       fv' <- arbitrary :: Gen FunctionValues
-      return (Cube h' i' j' k' fv')
+      (Positive tet_vol) <- arbitrary :: Gen (Positive Double)
+      return (Cube h' i' j' k' fv' tet_vol)
         where
           coordmin = -268435456 -- -(2^29 / 2)
           coordmax = 268435456  -- +(2^29 / 2)
@@ -51,7 +53,7 @@ instance Show Cube where
 
 -- | Returns an empty 'Cube'.
 empty_cube :: Cube
-empty_cube = Cube 0 0 0 0 empty_values
+empty_cube = Cube 0 0 0 0 empty_values 0
 
 
 -- | The left-side boundary of the cube. See Sorokina and Zeilfelder,
@@ -197,9 +199,14 @@ right_face c = Face.Face v0' v1' v2' v3'
       v3' = (center c) + (-delta, delta, -delta)
 
 
+make_tetrahedron :: Cube -> Point -> Point -> Point -> Point -> Tetrahedron
+make_tetrahedron c v0 v1 v2 v3 =
+    Tetrahedron (Cube.fv c) v0 v1 v2 v3 (tetrahedra_volume c)
+
+
 tetrahedron0 :: Cube -> Tetrahedron
 tetrahedron0 c =
-    Tetrahedron (Cube.fv c) v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (front_face c)
@@ -208,7 +215,7 @@ tetrahedron0 c =
 
 tetrahedron1 :: Cube -> Tetrahedron
 tetrahedron1 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (front_face c)
@@ -218,7 +225,7 @@ tetrahedron1 c =
 
 tetrahedron2 :: Cube -> Tetrahedron
 tetrahedron2 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (front_face c)
@@ -228,7 +235,7 @@ tetrahedron2 c =
 
 tetrahedron3 :: Cube -> Tetrahedron
 tetrahedron3 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (front_face c)
@@ -238,7 +245,7 @@ tetrahedron3 c =
 
 tetrahedron4 :: Cube -> Tetrahedron
 tetrahedron4 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (top_face c)
@@ -248,7 +255,7 @@ tetrahedron4 c =
 
 tetrahedron5 :: Cube -> Tetrahedron
 tetrahedron5 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (top_face c)
@@ -258,7 +265,7 @@ tetrahedron5 c =
 
 tetrahedron6 :: Cube -> Tetrahedron
 tetrahedron6 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (top_face c)
@@ -270,7 +277,7 @@ tetrahedron6 c =
 
 tetrahedron7 :: Cube -> Tetrahedron
 tetrahedron7 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (top_face c)
@@ -280,7 +287,7 @@ tetrahedron7 c =
 
 tetrahedron8 :: Cube -> Tetrahedron
 tetrahedron8 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (back_face c)
@@ -290,7 +297,7 @@ tetrahedron8 c =
 
 tetrahedron9 :: Cube -> Tetrahedron
 tetrahedron9 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (back_face c)
@@ -302,7 +309,7 @@ tetrahedron9 c =
 
 tetrahedron10 :: Cube -> Tetrahedron
 tetrahedron10 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (back_face c)
@@ -316,7 +323,7 @@ tetrahedron10 c =
 
 tetrahedron11 :: Cube -> Tetrahedron
 tetrahedron11 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (back_face c)
@@ -329,7 +336,7 @@ tetrahedron11 c =
 
 tetrahedron12 :: Cube -> Tetrahedron
 tetrahedron12 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (down_face c)
@@ -340,7 +347,7 @@ tetrahedron12 c =
 
 tetrahedron13 :: Cube -> Tetrahedron
 tetrahedron13 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (down_face c)
@@ -351,7 +358,7 @@ tetrahedron13 c =
 
 tetrahedron14 :: Cube -> Tetrahedron
 tetrahedron14 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (down_face c)
@@ -364,7 +371,7 @@ tetrahedron14 c =
 
 tetrahedron15 :: Cube -> Tetrahedron
 tetrahedron15 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (down_face c)
@@ -375,7 +382,7 @@ tetrahedron15 c =
 
 tetrahedron16 :: Cube -> Tetrahedron
 tetrahedron16 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (right_face c)
@@ -386,7 +393,7 @@ tetrahedron16 c =
 
 tetrahedron17 :: Cube -> Tetrahedron
 tetrahedron17 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (right_face c)
@@ -397,7 +404,7 @@ tetrahedron17 c =
 
 tetrahedron18 :: Cube -> Tetrahedron
 tetrahedron18 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (right_face c)
@@ -410,7 +417,7 @@ tetrahedron18 c =
 
 tetrahedron19 :: Cube -> Tetrahedron
 tetrahedron19 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (right_face c)
@@ -422,7 +429,7 @@ tetrahedron19 c =
 
 tetrahedron20 :: Cube -> Tetrahedron
 tetrahedron20 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (left_face c)
@@ -433,7 +440,7 @@ tetrahedron20 c =
 
 tetrahedron21 :: Cube -> Tetrahedron
 tetrahedron21 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (left_face c)
@@ -444,7 +451,7 @@ tetrahedron21 c =
 
 tetrahedron22 :: Cube -> Tetrahedron
 tetrahedron22 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (left_face c)
@@ -457,7 +464,7 @@ tetrahedron22 c =
 
 tetrahedron23 :: Cube -> Tetrahedron
 tetrahedron23 c =
-    Tetrahedron fv' v0' v1' v2' v3'
+    make_tetrahedron c v0' v1' v2' v3'
     where
       v0' = center c
       v1' = center (left_face c)