lib/triangle.rb in gmath3D-0.2.1 vs lib/triangle.rb in gmath3D-0.2.2

@@ -18,10 +18,31 @@
       Util.check_arg_type(::Vector3, vertex3)
       super()
       @vertices = Array.new([vertex1, vertex2, vertex3])
     end
 
+    def initialize_copy( original_obj )
+      @vertices = Array.new(original_obj.vertices.size)
+      for i in [e-mail]-1
+        @vertices[i] = original_obj.vertices[i].dup
+      end
+    end
+
+    # [Input]
+    #  _rhs_ is Line.
+    # [Output]
+    #  return true if rhs equals myself.
+    def ==(rhs)
+      return false if rhs == nil
+      return false if( !rhs.kind_of?(Triangle) )
+      return false if(@vertices.size != rhs.vertices.size)
+      for i in [e-mail]-1
+        return false if(@vertices[i] != rhs.vertices[i])
+      end
+      return true
+    end
+
     def to_s
       "Triangle[#{@vertices[0].to_element_s}, #{@vertices[1].to_element_s}, #{@vertices[2].to_element_s}]"
     end
 
     # [Input]
@@ -63,9 +84,15 @@
     #  return normal vector as Vector3.
     def normal
       vec1 = self.vertices[1] - self.vertices[0]
       vec2 = self.vertices[2] - self.vertices[0]
       return (vec1.cross(vec2).normalize)
+    end
+
+    # [Output]
+    #  return normal vector reversed triangle
+    def reverse()
+      return Triangle.new(@vertices[0], @vertices[2], @vertices[1])
     end
 
     # [Input]
     #  _check_point_ should be Vector3.
     # [Output]