ArcObjects Library Reference (NetworkAnalyst)

NAServiceAreaSolver CoClass

Performs service area analysis.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server. Requires Network Analyst Extension.

Extended Error Information

Use the ISupportErrorInfo method InterfaceSupportsErrorInfo to determine if the object supports extended error information. If the object supports extended error info, VC++ developers should use the OLE/COM IErrorInfo interface to access the ErrorInfo object. Visual Basic developers should use the global error object Err to retrieve this extended error information.

Interfaces

Interfaces	Description
IClone (esriSystem)	Provides access to members that control cloning of objects.
INAServiceAreaSolver	Provides access to the service area solver.
INAServiceAreaSolver2	Provides access to the service area solver.
INASolver	Provides access to the common interface for all network solvers.
INASolverForwardStar	Creates a network dataset forward star which honors the current solver settings as well as any barriers.
INASolverOutputGeneralization	Provides access to generalization parameters used on solver output.
INASolverOverrides	Overrides for implementation settings.
INASolverSettings	Provides access to settings common to all solvers.
INASolverSettings2	Provides access to settings common to all solvers.
INASolverSettings3	Provides access to settings common to all solvers.
INATimeAwareSolverSettings	Provides access to settings common to all time-aware solvers.
INATimeAwareSolverSettings2	Provides access to settings common to all time-aware solvers.
IPersist (esriSystem)
IPersistStream (esriSystem)
ISupportErrorInfo (esriSystem)
IXMLSerialize (esriSystem)	Provides access to members that XML serialize and deserialize an object to/from XML.

Remarks

NAServiceAreaSolver is a Network Analyst solver that computes the service area, or a polygon that surrounds all of the network locations that are within a specified cost-distance of a facility. For example, it can compute a three minute drive time polygon around a facility. More than one break value can be specified. For example, if solving on drivetime, break values of 5.0, 10.0, and 15.0 will compute three polygons at distances of 5, 10 and 15 minutes from the facility location. The actual set of edges traversed can also be generated separately. Multiple facilities will generate multiple, possibly overlapping service area lines and polygons. The overlapping polygons can be merged together and the overlapping lines can be made non-overlapping. Measure values can also be assigned to the service area lines. The NAServiceAreaSolver honors all of the settings of the INASolverSettings interface.