API Enhancements

Learn about enhancements to the API.

Updates to the API have been made in the following feature areas:

New in 2027.1

Profile

• Added new methods to the ProfileEntityCollection class:
  • AddFloatingTangentByGradeAndLength()
  • AddFreeCircularCurveByLength()
  • AddFreeCircularCurveByRadius()
  • AddFreeCircularCurveByThroughPoint()
  • AddFreeSymmetricParabolaByThroughPoint()
  • AddFixedSymmetricParabolaByHighLowPointRadiusAndLength()
  • AddFixedCircularCurveByHighLowPointRadiusAndLength()
• Added new vertical constraint types to the Autodesk.Civil.DatabaseServices.EntityVerticalConstraintType enum:
  • HighLowPointRadiusAndCurveLength
  • PreviousGradeAndLength
  • NextGradeAndLength

Feature Line

• Added a GetFlattenCurve() method, which returns a new lightweight polyline representing the feature line geometry projected (flattened) to the XY plane. The caller must dispose of the returned polyline when finished.
• Added a reverse() method, which reverses the direction of the feature line (start and end swap; curve parameterization is reversed). The feature line must be open for write in the current transaction.

Pond

• Added a Pond.GetMesh() API for retrieving the mesh geometry of a pond
• Added two new methods to the StageStorageCollection class:
  • GetAreaAtDepth()
  • GetVolumeAtDepth()

New in 2027

Channels

• Added a Channel.LongitudinalSlopes API to retrieve all channel longitudinal slopes.
• Added a Channel.IsLongitudinalSlopesValid API to determine whether channel longitudinal slopes are valid or not.

Stormwater Controls

• Updated the StormwaterControl.GetInletDetails and StormwaterControl.GetOutletDetails APIs to include info about connected channels.

Pipes

• Added new APIs to the Autodesk.Civil.DatabaseServices.Pipe for retrieving the start/end connected object ID of a Pipe. The connected object can be a Structure or Stormwater Control.

Data Shortcuts

• Added API support for Pond data shortcuts.