Provides access to members that get information about the schema of the network.
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.
When To Use
Use the INetSchema interface when you want to obtain
information about element classes in your network as well as
weights, weight associations and ancillary roles.
Members
| Description | ||
|---|---|---|
 |
ElementClass | Element class by index. |
|
ElementClassByUserID | Element class corresponding to the specified user class ID. |
|
ElementClassCount | Number of element classes in the network. |
 |
GetAncillaryRole | Returns the ancillary role type and the name of the field containing the ancillary role information. |
|
GetEnabledDisabledFieldName | Returns the name of the filed containing the enabled/disabled information for the specified user class. |
|
Weight | Network weight corresponding to the specified weight internal ID. |
|
WeightAssociations | Network weight associations corresponding to the specified weight internal ID. |
|
WeightAssociationsByTableName | Network weight associations corresponding to the specified table name. |
|
WeightByName | Network weight corresponding to the specified name. |
|
WeightCount | Number of weights in the network. |
CoClasses that implement INetSchema
| CoClasses and Classes | Description |
|---|---|
| StreetNetwork | A container for describing a street network. |
| UtilityNetwork | A container for describing a utility network. |
Remarks
A logical network can be constructed from one or more feature
classes. For instance, you may have a transmission lines feature
class and a transformers feature class. Together, these two feature
classes comprise the basis for the entire logical network. Each
element in a network can be found based on its Element ID (EID) and
its element type. Each element must also remember which feature it
belongs to. Each element maintains which feature class it was
created from in a UserClassID. The UserID stores the ID of the
feature within the feature class. The logical network also
maintains the UserSubID for each element within the feature. The
relationship between the feature class, features, and the logical
network elements comprises the schema for a network.
See Also
INetSchemaEdit Interface | INetSchema Interface | INetWeightAssociationEdit Interface | INetWeightAssociation Interface | INetWeightEdit Interface | INetWeight Interface