old data

StgSharp.Model/Step/Items/StepElementarySurface.cs

@@ -28,24 +28,23 @@
 //     
 //-----------------------------------------------------------------------
 //-----------------------------------------------------------------------
-using StgSharp.Model.Step;
 using StgSharp.Script;
 using StgSharp.Script.Express;
 
 using System;
 using System.Collections.Generic;
 
-namespace StgSharp.Model.Step
+namespace StgSharp.Modeling.Items
 {
-    public class StepElementarySurface : StepSurface, IExpConvertableFrom<StepElementarySurface>
+    public abstract class StepElementarySurface : StepSurface
     {
 
         private StepAxis2Placement3D _position;
 
-        public StepElementarySurface( StepModel model ) : base( model ) { }
+        protected StepElementarySurface() : base( string.Empty ) { }
 
-        public StepElementarySurface( StepModel model, StepAxis2Placement3D position )
-            : base( model )
+        public StepElementarySurface( string name, StepAxis2Placement3D position )
+            : base( name )
         {
             Position = position;
         }
@@ -55,15 +54,17 @@ namespace StgSharp.Model.Step
             get { return _position; }
             set
             {
-                ArgumentNullException.ThrowIfNull( value );
+                if( value == null ) {
+                    throw new ArgumentNullException();
+                }
+
                 _position = value;
             }
         }
 
-        public void FromInstance( StepElementarySurface entity )
+        internal override IEnumerable<StepRepresentationItem> GetReferencedItems()
         {
-            base.FromInstance( entity );
-            _position = entity.Position;
+            yield return Position;
         }
 
     }