Fixes RH-58306 adds ribbon offset python example

rhinopython/SampleRibbonOffsetCurve.py

@@ -0,0 +1,43 @@
+################################################################################
+# SampleRibbonOffsetCurve.py
+# Copyright (c) 2020 Robert McNeel & Associates.
+# See License.md in the root of this repository for details.
+################################################################################
+import clr
+import Rhino
+import scriptcontext
+import System.Drawing.Color
+import System.Collections.Generic.IEnumerable as IEnumerable
+
+def SampleCreateRibbon():
+
+    go = Rhino.Input.Custom.GetObject()
+    go.GeometryFilter = Rhino.DocObjects.ObjectType.Curve
+    go.GeometryAttributeFilter = Rhino.Input.Custom.GeometryAttributeFilter.ClosedCurve
+    go.SetCommandPrompt("Select closed curve to offset")
+    go.Get()
+    if(go.CommandResult() != Rhino.Commands.Result.Success):
+        return go.CommandResult()
+
+    gp = Rhino.Input.Custom.GetPoint()
+    gp.SetCommandPrompt("Select curve side to offset")
+    gp.Get()
+    if(gp.CommandResult() != Rhino.Commands.Result.Success):
+        return gp.CommandResult()
+
+    crv = go.Object(0).Curve()
+    pt = gp.Point()
+    plane = scriptcontext.doc.ActiveDoc.Views.ActiveView.ActiveViewport.ConstructionPlane()
+    direction = plane.Normal
+    tol = scriptcontext.doc.ModelAbsoluteTolerance
+
+    rib = crv.RibbonOffset(2.0,1.0,pt,direction,tol)
+    scriptcontext.doc.ActiveDoc.Objects.Add(rib)
+
+    return Rhino.Commands.Result.Success
+
+# 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__' ):
+    SampleCreateRibbon()