在数据集下建立FeatureClass

占行

  1    /// <summary>  
  2         /// 在数据集下创建图层  
  3         /// </summary>  
  4         /// <param name="featureClassName">图层名称</param>  
  5         /// <param name="dicFields">属性结构</param>  
  6         /// <param name="pfeaturedataset">数据集名称</param>  
  7         /// <param name="classExtensionUID">类型UID</param>  
  8         /// <param name="featureWorkspace">工作空间</param>  
  9         /// <param name="spatialRef">空间参考</param>  
 10         /// <param name="esrigeomtryType">几何类型</param>  
 11         /// <returns></returns>  
 12         public static IFeatureClass CreateFeatureClass(string featureClassName, Dictionary<string, string> dicFields, IFeatureDataset pfeaturedataset, UID classExtensionUID, IFeatureWorkspace featureWorkspace, esriGeometryType esrigeomtryType, ISpatialReference spatialRef)
 13         {
 14             IFeatureClass featureClass = null;
 15             //featureClass = ExitFeatureClass((IWorkspace)featureWorkspace, featureClassName, esriDatasetType.esriDTFeatureClass);
 16             if (featureClass != null)
 17             {
 18                 return featureClass;
 19             }
 20 
 21             try
 22             {
 23                 //创建要素类的字段集合  
 24                 IFields fields = new FieldsClass();
 25                 IFieldsEdit fieldsEdit = (IFieldsEdit)fields;
 26                 if (dicFields != null && dicFields.Count == 0)
 27                 {
 28                     return null;
 29                 }
 30                 foreach (var item in dicFields)
 31                 {
 32                     fieldsEdit.AddField(BuildField(item.Key, item.Value));
 33                 }
 34 
 35                 #region 添加Shape字段
 36                 //添加Shape字段  
 37                 IGeometryDef geometryDef = new GeometryDefClass();
 38                 IGeometryDefEdit geometryDefEdit = (IGeometryDefEdit)geometryDef;
 39                 geometryDefEdit.GeometryType_2 = esrigeomtryType;
 40                 geometryDefEdit.SpatialReference_2 = spatialRef;
 41 
 42                 IField geometryField = new FieldClass();
 43                 IFieldEdit geometryFieldEdit = (IFieldEdit)geometryField;
 44                 geometryFieldEdit.Name_2 = "SHAPE";
 45                 geometryFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;
 46                 geometryFieldEdit.GeometryDef_2 = geometryDef;
 47                 fieldsEdit.AddField(geometryField);
 48                 #endregion
 49 
 50                 //创建一个Validated Fields集合  
 51                 IFieldChecker fieldChecker = new FieldCheckerClass();
 52                 IEnumFieldError enumFieldError = null;
 53                 IFields validatedFields = null;
 54                 fieldChecker.ValidateWorkspace = (IWorkspace)featureWorkspace;
 55                 fieldChecker.Validate(fields, out enumFieldError, out validatedFields);
 56 
 57                 featureClass = pfeaturedataset.CreateFeatureClass(featureClassName, validatedFields, null, classExtensionUID,
 58                esriFeatureType.esriFTSimple, "SHAPE", "");
 59                 return featureClass;
 60             }
 61             catch (Exception ex)
 62             {
 63             }
 64             return null;
 65         }
 66         ///// <summary>  
 67         /// 创建属性结构  
 68         /// </summary>  
 69         /// <param name="fldname">属性结构名称</param>  
 70         /// <param name="fldtype">属性结构字段类型</param>  
 71         /// <returns></returns>  
 72         private static IField BuildField(string fldname, string fldtype)
 73         {
 74             IFields fields = new FieldsClass();
 75             IField oidField = new FieldClass();
 76             IFieldEdit oidFieldEdit = (IFieldEdit)oidField;
 77             oidFieldEdit.Name_2 = fldname;
 78             switch (fldtype.ToString().ToLower())
 79             {
 80                 case "objectid":
 81                     oidFieldEdit.Type_2 = esriFieldType.esriFieldTypeOID;
 82                     break;
 83                 case "longinteger":
 84                     oidFieldEdit.Type_2 = esriFieldType.esriFieldTypeInteger;
 85                     break;
 86                 case "shortinteger":
 87                     oidFieldEdit.Type_2 = esriFieldType.esriFieldTypeSmallInteger;
 88                     break;
 89                 case "text":
 90                     oidFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
 91                     oidFieldEdit.Length_2 = 50;
 92                     break;
 93                 case "double":
 94                     oidFieldEdit.Type_2 = esriFieldType.esriFieldTypeDouble;
 95                     break;
 96                 case "geometry":
 97                     oidFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;
 98                     break;
 99             }
100             return oidField;
101         }

 

posted @ 2017-08-29 14:37  marvelousone  阅读(859)  评论(0)  编辑  收藏  举报