ArcEngine创建注记类及生成注记要素

在宗地出图的时候遇到此功能要求，看代码

※创建注记类

public void createBlackAnno(IMap pMap)
        {
            //创建mdb数据库文件            
            IWorkspaceFactory pWorkspaceFactory = new AccessWorkspaceFactoryClass();
            IWorkspaceName pWorkspaceName = pWorkspaceFactory.Create("c:/Users/Administrator/Desktop/testfolder/","NewGDB.mdb",null,0);
            IName pName = pWorkspaceName as IName;
            IWorkspace pWorkspace = pName.Open() as IWorkspace;
            //创建数据集
            IFeatureWorkspace pFeatureWorkspace = pWorkspace as IFeatureWorkspace;
            ISpatialReferenceFactory pSpatialReferenceF = new SpatialReferenceEnvironmentClass();
            ISpatialReference pSpatialReference = pSpatialReferenceF.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_Beijing1954);
            pFeatureWorkspace.CreateFeatureDataset("abc",pSpatialReference);
            //创建注记要素类
            IFeatureDataset pFeatureDataset = pFeatureWorkspace.OpenFeatureDataset("abc");
            IFeatureWorkspaceAnno pWorkspaceAnno = pFeatureDataset.Workspace as IFeatureWorkspaceAnno;
            /*------------------------------------------------*/
            string Name = "AnnoFeatureClass";
            IObjectClassDescription pObjectClassDes = new AnnotationFeatureClassDescriptionClass();
            IFeatureClassDescription pFCDescription = pObjectClassDes as IFeatureClassDescription;
            IFields pFields = pObjectClassDes.RequiredFields;

            IAnnotateLayerProperties pALProperties = new LabelEngineLayerPropertiesClass();
            pALProperties.FeatureLinked = false;
            pALProperties.AddUnplacedToGraphicsContainer = false;
            pALProperties.CreateUnplacedElements = true;
            pALProperties.DisplayAnnotation = true;
            pALProperties.UseOutput = true;
            ILabelEngineLayerProperties pLayerEngineLayerProps = pALProperties as ILabelEngineLayerProperties;
            IAnnotateLayerProperties pAlp = pLayerEngineLayerProps as IAnnotateLayerProperties;
            pAlp.Class = "Annotation Class 1";
            IAnnotateLayerPropertiesCollection pAnnoPropscollection = new AnnotateLayerPropertiesCollection();
            pAnnoPropscollection.Add(pAlp);

            IGraphicsLayerScale pGraphicsLayerScale = new GraphicsLayerScaleClass();
            pGraphicsLayerScale.Units = esriUnits.esriMeters;
            pGraphicsLayerScale.ReferenceScale = 2000;

            /****************/
            IFormattedTextSymbol myTextSymbol = new TextSymbolClass();
            //peizhi 类里边是三个基础函数分辨是IRgbColor IFontDisp ITextSymbol 对应的，方法基础，此处无代码
            Anno.peizhi pAnno = new Anno.peizhi();
            IFontDisp pFont = pAnno.getFont("宋体", 12, false);
            IColor pColor = pAnno.getColor(34,56,78);

            myTextSymbol.Color = pColor;
            myTextSymbol.Font = pFont;
            myTextSymbol.Angle = 0;
            myTextSymbol.RightToLeft = false;
            myTextSymbol.VerticalAlignment = esriTextVerticalAlignment.esriTVABaseline;
            myTextSymbol.HorizontalAlignment = esriTextHorizontalAlignment.esriTHAFull;
            myTextSymbol.CharacterSpacing = 200;
            myTextSymbol.Case = esriTextCase.esriTCNormal;

            ISymbolCollection pSymbolCollection = new SymbolCollectionClass();
            pSymbolCollection.set_Symbol(0, myTextSymbol as ISymbol);

            IFeatureClass pAnnoFeatureClass = pWorkspaceAnno.CreateAnnotationClass(
                Name,
                pFields,
                pObjectClassDes.InstanceCLSID,
                pObjectClassDes.ClassExtensionCLSID,
                pFCDescription.ShapeFieldName,
                "",
                pFeatureDataset,
                null,
                pAnnoPropscollection,
                pGraphicsLayerScale,
                pSymbolCollection,
                true);
        }

※生成注记要素

public void createAnnoFeature()
        {
            //pPoint 用于确定生成注记的位置
            IPoint pPoint = new PointClass()
            {
                X = -10,
                Y = -6
            };
            peizhi p = new peizhi();//同上

            ITextElement pTextElement = new TextElementClass()
            {
                Symbol = p.getTextSymbol(p.getColor(0, 255, 0), p.getFont("宋体", 12, true), 12),
                ScaleText = true,
                Text = "testet"
            };
            IElement pElement = pTextElement as IElement;
            pElement.Geometry = pPoint;
            //以下两行只是为了将生成的注记添加到调试界面，数据量大的时候可以删除，以加快速度
            IGraphicsContainer pGContainer = axMapControl1.Map as IGraphicsContainer;
            pGContainer.AddElement(pElement, 0);
            //将要素转为注记
            (axMapControl1.Map as IActiveView).PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, axMapControl1.Extent);
            IFeatureClass pFeatureClass = (this.axMapControl1.Map.get_Layer(0) as IFeatureLayer).FeatureClass;
            IDataset pDataset = pFeatureClass as IDataset;
            ITransactions pTransaction = pDataset.Workspace as ITransactions;
            pTransaction.StartTransaction();
            IFDOGraphicsLayerFactory pFDOGLFactory = new FDOGraphicsLayerFactoryClass();
            ILayer tempLayer = pFDOGLFactory.OpenGraphicsLayer(pDataset.Workspace as IFeatureWorkspace,pFeatureClass.FeatureDataset,pDataset.Name);
            IFDOGraphicsLayer pFDOGLayer = tempLayer as IFDOGraphicsLayer;
            IElementCollection pElementColl = new ElementCollectionClass();
            pFDOGLayer.BeginAddElements();
            pElementColl.Add(pElement, 0);
            pFDOGLayer.DoAddElements(pElementColl, 0);
            pFDOGLayer.EndAddElements();
            pElementColl.Clear();
            pTransaction.CommitTransaction();
        }

※ps: 在生成注记的时候，考虑到注记类以及注记要素本身就属于要素类要素，于是采用平常生成点线面要素的方法生成注记要素，使用CreateFeatureBuffer方法，由于Override字段不可赋值，与手动插入的注记要素仅有此字段不同，结果要素可以添加进注记的要素类中，但是不能显示，用IDentity工具 也可以查看，确实有值，纠结好长时间，采用这个，有这方面的大哥希望一起讨论一下。

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