Good afternoon.
I have a question. How can I pass an Arc to a Curve with Dynamo?
Thank you.
Can you please provide a screenshot?
First you need to distinguish between revit arcs and dynamo arcs. 
Dynamo Arcs
Civil 3D Toolkit package
and do you want a revit model curve?
The theme is internal to Dynamo, it is neither an autocad curve nor a Revit curve… Internally in Dynamo I want to transform an arc to a Curve…
A Dynamo Arc inherits from the more-general Dynamo Curve class, so any of the nodes for Curves will work with Arcs. What is the specific case you’re dealing with?
You’re right, I saw the problem I had… it was the wrong arc I was drawing… Thanks