public IFeatureClass CreateStandardAnnotationClass(
IFeatureWorkspace featureWorkspace,
IFeatureDataset featureDataset,
String className,
ISpatialReference spatialReference,
double referenceScale,
esriUnits referenceScaleUnits,
String configKeyword
)
{
// Create an annotation class and provide it with a name.
ILabelEngineLayerProperties labelEngineLayerProperties = new
LabelEngineLayerPropertiesClass();
IAnnotateLayerProperties annotateLayerProperties = (IAnnotateLayerProperties)
labelEngineLayerProperties;
annotateLayerProperties.Class = className;
// Get the symbol from the annotation class. Make any changes to its properties
// here.
ITextSymbol annotationTextSymbol = labelEngineLayerProperties.Symbol;
ISymbol annotationSymbol = (ISymbol)annotationTextSymbol;
// Create a symbol collection and add the default symbol from the
// annotation class to the collection. Assign the resulting symbol ID
// to the annotation class.
ISymbolCollection symbolCollection = new SymbolCollectionClass();
ISymbolCollection2 symbolCollection2 = (ISymbolCollection2)symbolCollection;
ISymbolIdentifier2 symbolIdentifier2 = null;
symbolCollection2.AddSymbol(annotationSymbol, className, out symbolIdentifier2);
labelEngineLayerProperties.SymbolID = symbolIdentifier2.ID;
// Add the annotation class to a collection.
IAnnotateLayerPropertiesCollection annotateLayerPropsCollection = new
AnnotateLayerPropertiesCollectionClass();
annotateLayerPropsCollection.Add(annotateLayerProperties);
// Create a graphics layer scale object.
IGraphicsLayerScale graphicsLayerScale = new GraphicsLayerScaleClass();
graphicsLayerScale.ReferenceScale = referenceScale;
graphicsLayerScale.Units = referenceScaleUnits;
// Create the overposter properties for the standard label engine.
IOverposterProperties overposterProperties = new BasicOverposterPropertiesClass()
;
// Instantiate a class description object.
//IObjectClassDescription ocDescription = new
// AnnotationFeatureClassDescriptionClass();
//IFeatureClassDescription fcDescription = (IFeatureClassDescription)ocDescription;
//// Get the shape field from the class description's required fields.
//IFields requiredFields = ocDescription.RequiredFields;
//int shapeFieldIndex = requiredFields.FindField(fcDescription.ShapeFieldName);
//IField shapeField = requiredFields.get_Field(shapeFieldIndex);
IFeatureLayer layer = (IFeatureLayer)mLayer;
IFields fields = layer.FeatureClass.Fields;
IField shapeField = fields.Field[fields.FindField(mField)];
IGeometryDef geometryDef = shapeField.GeometryDef;
IGeometryDefEdit geometryDefEdit = (IGeometryDefEdit)geometryDef;
geometryDefEdit.SpatialReference_2 = spatialReference;
// Create the annotation layer factory.
IAnnotationLayerFactory annotationLayerFactory = new
FDOGraphicsLayerFactoryClass();
// Create the annotation feature class and an annotation layer for it.
IAnnotationLayer annotationLayer = annotationLayerFactory.CreateAnnotationLayer
(featureWorkspace, featureDataset, className, geometryDef, null,
annotateLayerPropsCollection, graphicsLayerScale, symbolCollection, false,
false, false, true, overposterProperties, configKeyword);
// Get the feature class from the feature layer.
IFeatureLayer featureLayer = (IFeatureLayer)annotationLayer;
IFeatureClass featureClass = featureLayer.FeatureClass;
return(featureClass);
}
