Samples elevation along an existing surface.
public SampledSectionLinkCollection SampleSection( ObjectId surfaceId, ObjectId alignmentId, IPoint point1, IPoint point2 )
Public Function SampleSection ( surfaceId As ObjectId, alignmentId As ObjectId, point1 As IPoint, point2 As IPoint ) As SampledSectionLinkCollection
public: SampledSectionLinkCollection^ SampleSection( ObjectId surfaceId, ObjectId alignmentId, IPoint^ point1, IPoint^ point2 )