ArcObjects Library Reference (NetworkAnalyst)

NAClosestFacilitySolver CoClass

Performs closest facility 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.
INAClosestFacilitySolver	Provides access to the closest facility 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	Defines the single method GetClassID, which is designed to supply the CLSID of an object that can be stored persistently in the system. IPersist is the base interface for three other interfaces: IPersistStorage, IPersistStream, and IPersistFile.
IPersistStream (esriSystem)
ISupportErrorInfo	Indicates whether a specific interface can return Automation error objects.
IXMLSerialize (esriSystem)	Provides access to members that XML serialize and deserialize an object to/from XML.

Remarks

NAClosestFacilitySolver is a Network Analyst solver that finds a set of closest facilities from a set of incidents. It can find the closest facility based on any suitable cost attribute and then write the results to an in-memory feature class. It has options to limit the number of facilities to compute to/from any incident by either specifying a maximum number of facilities to find or by specifying a cutoff value. For example, find the three closest facilities from a set of incidents that are no more than 10 Km away. It can also generate the actual path or straight line geometries connecting each facility to each incident. The NAClosestFacilitySolver honors all of the settings of the INASolverSettings interface.