ArcGIS Developer Help

IVectorization.Vectorize Method

[Visual Basic .NET]
Public Sub Vectorize ( _
    ByVal useSelection As Boolean, _
    ByVal extent As IEnvelope, _
    ByVal callbackGeom As INotifyGeometryFound, _
    ByVal cancel As ITrackCancel, _
    ByVal stepProgressor As IStepProgressor _
)

[C#]
public void Vectorize (
    bool useSelection,
    IEnvelope extent,
    INotifyGeometryFound callbackGeom,
    ITrackCancel cancel,
    IStepProgressor stepProgressor
);

Available with ArcGIS Desktop. Requires ArcScan Extension.

[C#]

The following code shows an example of this method in C#.

//You can get app from ICommand :: OnCreate() hook parameter

public void Vectorize(IApplication app)
{
  if (app != null)
  {
    IVectorization vectorization = app.FindExtensionByName("ESRI ArcScan Tools") as IVectorization;
    IMxDocument mxDoc = app.Document as IMxDocument;
    INotifyGeometryFound notifyGeom = new FoundGeom();
    vectorization.Vectorize(false, mxDoc.ActiveView.Extent, notifyGeom, null, null);
  }
}

Also create a new class (FoundGeom) with the following code. This provides the callback mechanism for the returned geometry.

public class FoundGeom : INotifyGeometryFound
{
  public FoundGeom()
  { 
  }
  #region INotifyGeometryFound Members
  void INotifyGeometryFound.AddGeometry(IGeometry shape, double LineWidth)
  {
    System.Windows.Forms.MessageBox.Show("Found geometry type " + shape.GeometryType);
  }
  #endregion
}