Creates an arc through the given reference points. 
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since:  2014 
Syntax
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Parameters
- document
- Type: Autodesk.Revit.DBDocument
 The Document.
- startPoint
- Type: Autodesk.Revit.DBReferencePoint
 The start point of the arc.
- endPoint
- Type: Autodesk.Revit.DBReferencePoint
 The end end of the arc.
- interiorPoint
- Type: Autodesk.Revit.DBReferencePoint
 The interior point on the arc.
Return Value
The CurveElement to be created.Remarks
 The interiorPoint determines the orientation of the arc while startPoint and endPoint determine the angle parameters at the ends. 
Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.ExceptionsArgumentNullException | A non-optional argument was null | 
| Autodesk.Revit.ExceptionsInvalidOperationException | Can't create an arc from the given points |