diff --git a/rhinopython/SampleAddRadialDimension.py b/rhinopython/SampleAddRadialDimension.py
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+++ b/rhinopython/SampleAddRadialDimension.py
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+################################################################################
+# SampleAddRadialDimension.py
+# Copyright (c) 2018 Robert McNeel & Associates.
+# See License.md in the root of this repository for details.
+################################################################################
+import Rhino
+import scriptcontext as sc
+
+# Demonstrates how to create a radial dimension
+def SampleAddRadialDimension():
+    
+    plane = Rhino.Geometry.Plane.WorldXY
+    cp = Rhino.Geometry.Point3d(2.0, 2.0, 0.0)
+    p1 = Rhino.Geometry.Point3d(4.0, 4.0, 0.0)
+    p2 = Rhino.Geometry.Point3d(8.0, 6.0, 0.0)
+    
+    style = sc.doc.DimStyles.Current
+    if (style.LeaderContentAngleType == Rhino.DocObjects.DimensionStyle.LeaderContentAngleStyle.Aligned):
+        p2.Y = 8.0
+    
+    dim = Rhino.Geometry.RadialDimension.Create(style, Rhino.Geometry.AnnotationType.Radius, plane, cp, p1, p2)
+    if dim:
+        sc.doc.Objects.Add(dim)
+        sc.doc.Views.Redraw()
+        
+# Check to see if this file is being executed as the "main" python
+# script instead of being used as a module by some other python script
+# This allows us to use the module which ever way we want.
+if __name__ == "__main__":
+    SampleAddRadialDimension()
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