lib/mittsu/extras/geometries/parametric_geometry.rb in mittsu-0.3.2 vs lib/mittsu/extras/geometries/parametric_geometry.rb in mittsu-0.3.3

@@ -17,27 +17,27 @@
       merge_vertices
     end
 
     def self.klein
       -> (v, u, target = Vector3.new) {
-        u *= Math::PI
-        v *= 2.0 * Math::PI
+        u *= ::Math::PI
+        v *= 2.0 * ::Math::PI
 
         u = u * 2.0
         x = nil
         y = nil
         z = nil
 
-        if u < Math::PI
-          x = 3.0 * Math.cos(u) * (1.0 + Math.sin(u)) + (2.0 * (1.0 - Math.cos(u) / 2.0)) * Math.cos(u) * Math.cos(v)
-          z = -8.0 * Math.sin(u) - 2.0 * (1.0 - Math.cos(u) / 2.0) * Math.sin(u) * Math.cos(v)
+        if u < ::Math::PI
+          x = 3.0 * ::Math.cos(u) * (1.0 + ::Math.sin(u)) + (2.0 * (1.0 - ::Math.cos(u) / 2.0)) * ::Math.cos(u) * ::Math.cos(v)
+          z = -8.0 * ::Math.sin(u) - 2.0 * (1.0 - ::Math.cos(u) / 2.0) * ::Math.sin(u) * ::Math.cos(v)
         else
-          x = 3.0 * Math.cos(u) * (1.0 + Math.sin(u)) + (2.0 * (1.0 - Math.cos(u) / 2.0)) * Math.cos(v + Math::PI)
-          z = -8.0 * Math.sin(u)
+          x = 3.0 * ::Math.cos(u) * (1.0 + ::Math.sin(u)) + (2.0 * (1.0 - ::Math.cos(u) / 2.0)) * ::Math.cos(v + ::Math::PI)
+          z = -8.0 * ::Math.sin(u)
         end
 
-        y = -2.0 * (1.0 - Math.cos(u) / 2.0) * Math.sin(v)
+        y = -2.0 * (1.0 - ::Math.cos(u) / 2.0) * ::Math.sin(v)
 
         target.set(x, y, z)
       }
     end
 
@@ -54,40 +54,40 @@
     def self.mobius
       -> (u, t, target = Vector3.new) {
         # flat mobius strip
         # http://www.wolframalpha.com/input/?i=M%C3%B6bius+strip+parametric+equations&lk=1&a=ClashPrefs_*Surface.MoebiusStrip.SurfaceProperty.ParametricEquations-
         u = u - 0.5
-        v = 2.0 * Math::PI * t
+        v = 2.0 * ::Math::PI * t
 
         a = 2.0
 
-        x = Math.cos(v) * (a + u * Math.cos(v / 2.0))
-        y = Math.sin(v) * (a + u * Math.cos(v / 2.0))
-        z = u * Math.sin(v / 2)
+        x = ::Math.cos(v) * (a + u * ::Math.cos(v / 2.0))
+        y = ::Math.sin(v) * (a + u * ::Math.cos(v / 2.0))
+        z = u * ::Math.sin(v / 2)
 
         target.set(x, y, z)
       }
     end
 
     def self.mobius3d
       -> (u, t, target = Vector3.new) {
         # volumetric mobius strip
 
-        u *= Math::PI
-        t *= 2.0 * Math::PI
+        u *= ::Math::PI
+        t *= 2.0 * ::Math::PI
 
         u = u * 2.0
         phi = u / 2.0
         major = 2.25
         a = 0.125
         b = 0.65
 
-        x = a * Math.cos(t) * Math.cos(phi) - b * Math.sin(t) * Math.sin(phi)
-        z = a * Math.cos(t) * Math.sin(phi) + b * Math.sin(t) * Math.cos(phi)
-        y = (major + x) * Math.sin(u)
-        x = (major + x) * Math.cos(u)
+        x = a * ::Math.cos(t) * ::Math.cos(phi) - b * ::Math.sin(t) * ::Math.sin(phi)
+        z = a * ::Math.cos(t) * ::Math.sin(phi) + b * ::Math.sin(t) * ::Math.cos(phi)
+        y = (major + x) * ::Math.sin(u)
+        x = (major + x) * ::Math.cos(u)
 
         target.set(x, y, z)
       }
     end
   end
-end
\ No newline at end of file
+end