Adding / Removing BaselineRegion using .NET API

BaselineRegion
class in Civil 3D represents a segment of a baseline, specified by alignment
stations for the start and end point. In a corridor, each baseline region uses
a single assembly type.

In AutoCAD
Civil 3D using UI tools we can add / remove BaselineRegion –

New API
functions are exposed in this release to add, remove or access a BaselineRegion
in the class BaselineRegionCollection.

Here is a C#
.NET code snippet which shows how to add and remove BaselineRegion –

// BaselineRegionCollection.Add(string regionName, string assemblyName, double startStation, double endStation ) 
// Adds a region at the specified start and end station with the given name and assembly. 
 
// Get the BaselineRegionCollection
BaselineRegionCollection baselineRegionColl = corridor.Baselines[0].BaselineRegions;
 
// Add a new BaselineRegion
BaselineRegion baselineregion = baselineRegionColl.Add("My Added Region", "Assembly - (1)", 506.00, 1110.00);  
 
// Remove a BaselineRegion with a given Name        
baselineRegionColl.Remove("Corridor Region (2)");
 
//rebuild the corridor
corridor.Rebuild();

Once added
the newly created BaselineRegion will be shown under the Baseline –