ネットワーク データセットの範囲指定ビルド

Public Sub Build()

On Error GoTo Error:

    Dim pMxDocument As IMxDocument
    Set pMxDocument = ThisDocument

    Dim pMap As IMap
    Set pMap = pMxDocument.FocusMap
    
    Dim pSelection As ISelection
    Set pSelection = pMap.FeatureSelection
    
    Dim pEnumFeature As IEnumFeature
    Set pEnumFeature = pSelection
    pEnumFeature.Reset
    
    Dim pFeature As IFeature
    Set pFeature = pEnumFeature.Next
    
    Dim pGeometryBag As IGeometryBag
    Set pGeometryBag = New GeometryBag
    Dim pGeometryCollection As IGeometryCollection
    Set pGeometryCollection = pGeometryBag
    
    
    Do Until pFeature Is Nothing
    
        pGeometryCollection.AddGeometry pFeature.Shape
    
        Set pFeature = pEnumFeature.Next
    Loop
    
    
    'レイヤ
    Dim pNetworkLayer As INetworkLayer
    Set pNetworkLayer = pMxDocument.FocusMap.Layer(InputBox("ネットワーク レイヤのインデックス番号を指定してください(最上位=0)"))
    
    Dim pNetworkDataset As INetworkDataset
    Set pNetworkDataset = pNetworkLayer.NetworkDataset
    
    Dim pNetworkBuild As INetworkBuild
    Set pNetworkBuild = pNetworkDataset
    
    Dim pEnvelope As IEnvelope
    Set pEnvelope = pNetworkBuild.BuildNetwork(pGeometryBag.Envelope)
    
    MsgBox "Done"
    
    Exit Sub
    
Error:
    
    MsgBox Err.Description
    Debug.Print Err.Description

End Sub