diff --git a/lib/gnuplot.rb b/lib/gnuplot.rb
index aa1028a..0ee51d4 100644
--- a/lib/gnuplot.rb
+++ b/lib/gnuplot.rb
@@ -175,17 +175,20 @@ def store_datasets (io = "")
     end
   end
 
+  # Analogous to Plot class, holds command information and performs the formatting of that command
+  # information to a Gnuplot process. Should be used when for drawing 3D plots.
+
   class SPlot < Plot
 
     def initialize (io = nil, cmd = "splot")
       super
     end
     
+    # Currently using the implementation from parent class Plot.
+    # Leaving the method explicit here, though, as to allow an specific
+    # implementation for SPlot in the future.
     def to_gplot (io = "")
-      @settings.each do |setting|
-          io << setting.map(&:to_s).join(" ") << "\n"
-      end
-      io
+      super
     end
 
   end