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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Text;
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using ESRI.ArcGIS.ADF;
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using ESRI.ArcGIS.Geodatabase;
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using ESRI.ArcGIS.Geometry;
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using System.Data;
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namespace Kingo.RuleCheck.AEHelper
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{
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public class FeatureClassAPI : IFeatureClassAPI
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{
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private IFeatureClass _CurrentFeatureClass;
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public FeatureClassAPI(IFeatureClass pFeatureClass)
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{
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this._CurrentFeatureClass = pFeatureClass;
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}
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/// <summary>
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/// 当前要素类
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/// </summary>
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public ESRI.ArcGIS.Geodatabase.IFeatureClass FeatureClass
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{
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get
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{
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return _CurrentFeatureClass;
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}
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}
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/// <summary>
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/// 关闭/释放当前要素类
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/// </summary>
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public bool CloseFeatureClass()
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{
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try
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{
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if (this._CurrentFeatureClass != null)
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{
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//while (Marshal.ReleaseComObject(this._CurrentFeatureClass) > 0) { }
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Marshal.ReleaseComObject(this._CurrentFeatureClass);
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}
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return true;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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}
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/// <summary>
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/// 条件过滤筛选要素
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/// </summary>
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/// <param name="pQueryFilter"></param>
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/// <returns></returns>
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public List<ESRI.ArcGIS.Geodatabase.IFeature> QueryFeatures(IQueryFilter pQueryFilter)
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{
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List<IFeature> result = new List<IFeature>();
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try
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{
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if (this.FeatureClass != null)
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{
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//IFeatureCursor cursor = this.FeatureClass.Search(pQueryFilter, true);
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//IFeature feature = null;
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//while ((feature = cursor.NextFeature()) != null)
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//{
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// result.Add(feature);
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//}
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//Marshal.ReleaseComObject(cursor);
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IList<IFeature> lstFeature = new List<IFeature>();
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//查询条件
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IFeatureCursor pFeatureCursor = FeatureClass.Search(pQueryFilter, false);
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IFeature pFeature = pFeatureCursor.NextFeature();
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//将要素放到集合中
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while (pFeature != null)
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{
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result.Add(pFeature);
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pFeature = pFeatureCursor.NextFeature();
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}
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Marshal.ReleaseComObject(pFeatureCursor);
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//return lstFeature;
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}
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return result;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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}
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/// <summary>
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/// 空间过滤筛选要素，压盖查询
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/// </summary>
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/// <param name="pFilter"></param>
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/// <returns></returns>
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public List<IFeature> SpatialFilterQueryFeatures(ISpatialFilter pFilter, bool IsCut = false)
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{
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List<IFeature> result = new List<IFeature>();
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try
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{
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if (this.FeatureClass != null)
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{
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ITopologicalOperator pTopologicalOperator = pFilter.Geometry as ITopologicalOperator;
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IFeatureCursor cursor = this.FeatureClass.Search(pFilter, false);
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IFeature pFeature = cursor.NextFeature();
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while (pFeature != null)
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{
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if (IsCut && pTopologicalOperator != null)
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{
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//IFeature feature = FeatureAPI.FeatureCopy(pFeature);
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pFeature.Shape = pTopologicalOperator.Intersect(pFeature.ShapeCopy, pFeature.ShapeCopy.Dimension);
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result.Add(pFeature);
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}
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else
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{
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result.Add(pFeature);
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}
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//Marshal.ReleaseComObject(pFeature);
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pFeature = cursor.NextFeature();
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}
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Marshal.ReleaseComObject(cursor);
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}
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return result;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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}
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/// <summary>
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/// 根据筛选条件查询要素到DataTable
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/// </summary>
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/// <param name="pQueryFilter">筛选条件</param>
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/// <returns></returns>
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public int QueryFeaturesToDataTable(IQueryFilter pQueryFilter, int pQueryCount, out DataTable pResult)
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{
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int DataCount = 0;
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try
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{
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pResult = new DataTable();
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if (this.FeatureClass != null)
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{
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#region 将IField转化为DataColumn
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for (int i = 0; i < FeatureClass.Fields.FieldCount; i++)
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{
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IField field = FeatureClass.Fields.get_Field(i);
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if (field.Name.ToUpper().Contains("SHAPE"))
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continue;
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DataColumn col = new DataColumn();
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col.ExtendedProperties.Add("index", i);
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col.ColumnName = field.Name;
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col.Caption = field.AliasName;
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switch (field.Type)
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{
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case esriFieldType.esriFieldTypeSmallInteger:
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col.DataType = typeof(Int16);
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break;
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case esriFieldType.esriFieldTypeInteger:
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col.DataType = typeof(Int32);
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break;
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case esriFieldType.esriFieldTypeSingle:
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break;
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case esriFieldType.esriFieldTypeDouble:
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col.DataType = typeof(double);
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break;
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case esriFieldType.esriFieldTypeString:
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col.DataType = typeof(string);
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break;
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case esriFieldType.esriFieldTypeDate:
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col.DataType = typeof(DateTime);
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break;
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case esriFieldType.esriFieldTypeOID:
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col.DataType = typeof(Int32);
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break;
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case esriFieldType.esriFieldTypeGeometry:
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break;
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case esriFieldType.esriFieldTypeBlob:
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break;
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case esriFieldType.esriFieldTypeRaster:
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break;
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case esriFieldType.esriFieldTypeGUID:
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break;
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case esriFieldType.esriFieldTypeGlobalID:
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break;
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case esriFieldType.esriFieldTypeXML:
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break;
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default:
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break;
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}
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//if (field.Name.Equals("TBBH", StringComparison.CurrentCultureIgnoreCase))
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//{
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// col.DataType = typeof(Int32);
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//}
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col.ReadOnly = !field.Editable;//编辑状态启用默认是否可以编辑
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pResult.Columns.Add(col);
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System.Runtime.InteropServices.Marshal.ReleaseComObject(field);
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}
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#endregion
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IList<IFeature> lstFeature = new List<IFeature>();
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//查询条件
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IFeatureCursor pFeatureCursor = FeatureClass.Search(pQueryFilter, false);
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IFeature pFeature = null;
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//将要素放到集合中
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while ((pFeature = pFeatureCursor.NextFeature()) != null)
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{
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DataCount++;
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using (ComReleaser releaser = new ComReleaser())
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{
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releaser.ManageLifetime(pFeature);
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DataRow dr = pResult.NewRow();
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for (int i = 0; i < pResult.Columns.Count; i++)
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{
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object obj = pFeature.get_Value((int)pResult.Columns[i].ExtendedProperties["index"]);
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if (obj == null)
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{
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continue;
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}
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else
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{
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if ((obj.ToString()).Contains("1899/12/30 0:00:00"))
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{
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obj = System.DBNull.Value;
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}
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}
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//字符串时，去空格，对应bug10473
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if (obj is string)
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{
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obj = obj.ToString().Trim();
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}
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if ((pResult.Columns[i] as DataColumn).DataType == typeof(Int32) && !(obj is Int32))
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{
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int TBBH;
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if (int.TryParse(obj.ToString(), out TBBH))
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{
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dr[i] = obj;
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}
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}
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else
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{
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dr[i] = obj;
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}
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}
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pResult.Rows.Add(dr);
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}
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}
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Marshal.ReleaseComObject(pFeatureCursor);
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}
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return DataCount;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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}
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/// <summary>
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/// 从当前的要素类中获取指定的要素对象
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/// </summary>
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/// <param name="OID">OID</param>
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public ESRI.ArcGIS.Geodatabase.IFeature GetFeature(int OID)
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{
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return FeatureClass.GetFeature(OID);
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}
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/// <summary>
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/// 添加要素到当前要素类
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/// </summary>
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/// <param name="pFeature">要素</param>
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public bool AddFeature(ESRI.ArcGIS.Geodatabase.IFeature pFeature)
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{
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bool result = false;
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IFeatureCursor cursor = null;
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try
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{
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if (this.FeatureClass != null)
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{
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using (ComReleaser comReleaser = new ComReleaser())
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{
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IFeatureBuffer newFeature = this.FeatureClass.CreateFeatureBuffer();
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comReleaser.ManageLifetime(newFeature);
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IGeometry geo = pFeature.ShapeCopy;
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//ITopologicalOperator2 topo = geo as ITopologicalOperator2;
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//if (!topo.IsSimple)
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// topo.Simplify();
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newFeature.Shape = geo;// pFeature.ShapeCopy;
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for (int i = 0; i < newFeature.Fields.FieldCount; i++)
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{
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IField field = newFeature.Fields.get_Field(i);
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if (!field.Editable)
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continue;
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if (field.Name.ToUpper() == "SHAPE")
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continue;
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int index = pFeature.Fields.FindField(field.Name);
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if (index == -1)
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continue;
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if (pFeature.Fields.get_Field(index).Type == field.Type)
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{
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newFeature.set_Value(i, pFeature.get_Value(index));
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}
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}
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cursor = this.FeatureClass.Insert(true);
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comReleaser.ManageLifetime(cursor);
|
|
|
|
|
|
object obj = cursor.InsertFeature(newFeature);
|
|
|
|
|
|
pFeature = newFeature as IFeature;
|
|
|
|
|
|
cursor.Flush();
|
|
|
|
|
|
//newFeature.Store();
|
|
|
|
|
|
result = true;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
|
{
|
|
|
|
|
|
throw ex;
|
|
|
|
|
|
}
|
|
|
|
|
|
return result;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
|
/// 添加要素到当前要素类
|
|
|
|
|
|
/// </summary>
|
|
|
|
|
|
/// <param name="pFeature">要素</param>
|
|
|
|
|
|
public IFeature AddFeatureAndReturn(ESRI.ArcGIS.Geodatabase.IFeature pFeature)
|
|
|
|
|
|
{
|
|
|
|
|
|
IFeature result = null;
|
|
|
|
|
|
IFeatureCursor cursor = null;
|
|
|
|
|
|
try
|
|
|
|
|
|
{
|
|
|
|
|
|
if (this.FeatureClass != null)
|
|
|
|
|
|
{
|
|
|
|
|
|
IFeatureBuffer newFeature = this.FeatureClass.CreateFeatureBuffer();
|
|
|
|
|
|
IGeometry geo = pFeature.ShapeCopy;
|
|
|
|
|
|
ITopologicalOperator2 topo = geo as ITopologicalOperator2;
|
|
|
|
|
|
//if (!topo.IsSimple)
|
|
|
|
|
|
topo.Simplify();
|
|
|
|
|
|
newFeature.Shape = geo;// pFeature.ShapeCopy;
|
|
|
|
|
|
for (int i = 0; i < newFeature.Fields.FieldCount; i++)
|
|
|
|
|
|
{
|
|
|
|
|
|
IField field = newFeature.Fields.get_Field(i);
|
|
|
|
|
|
if (!field.Editable)
|
|
|
|
|
|
continue;
|
|
|
|
|
|
if (field.Name.ToUpper() == "SHAPE")
|
|
|
|
|
|
continue;
|
|
|
|
|
|
int index = pFeature.Fields.FindField(field.Name);
|
|
|
|
|
|
if (index == -1)
|
|
|
|
|
|
continue;
|
|
|
|
|
|
if (pFeature.Fields.get_Field(index).Type == field.Type)
|
|
|
|
|
|
{
|
|
|
|
|
|
newFeature.set_Value(i, pFeature.get_Value(index));
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
cursor = this.FeatureClass.Insert(true);
|
|
|
|
|
|
object obj = cursor.InsertFeature(newFeature);
|
|
|
|
|
|
cursor.Flush();
|
|
|
|
|
|
Marshal.ReleaseComObject(newFeature);
|
|
|
|
|
|
result = this.FeatureClass.GetFeature(Convert.ToInt32(obj));
|
|
|
|
|
|
//newFeature.Store();
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
|
{
|
|
|
|
|
|
throw ex;
|
|
|
|
|
|
}
|
|
|
|
|
|
finally
|
|
|
|
|
|
{
|
|
|
|
|
|
if (cursor != null)
|
|
|
|
|
|
{
|
|
|
|
|
|
Marshal.ReleaseComObject(cursor);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
return result;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
|
/// 添加要素到当前要素类
|
|
|
|
|
|
/// </summary>
|
|
|
|
|
|
/// <param name="pFeature">要素</param>
|
|
|
|
|
|
public bool AddFeature(List<K_Field> pDicData)
|
|
|
|
|
|
{
|
|
|
|
|
|
bool result = false;
|
|
|
|
|
|
IFeatureCursor cursor = null;
|
|
|
|
|
|
try
|
|
|
|
|
|
{
|
|
|
|
|
|
if (this.FeatureClass != null)
|
|
|
|
|
|
{
|
|
|
|
|
|
IFeatureBuffer newFeature = this.FeatureClass.CreateFeatureBuffer();
|
|
|
|
|
|
for (int i = 0; i < newFeature.Fields.FieldCount; i++)
|
|
|
|
|
|
{
|
|
|
|
|
|
IField field = newFeature.Fields.get_Field(i);
|
|
|
|
|
|
if (!field.Editable)
|
|
|
|
|
|
continue;
|
|
|
|
|
|
K_Field dicField = pDicData.FirstOrDefault(e => e.Name.ToUpper() == field.Name.ToUpper());
|
|
|
|
|
|
if (dicField != null)
|
|
|
|
|
|
{
|
|
|
|
|
|
if (dicField.Type == field.Type && !(dicField.Value is DBNull))
|
|
|
|
|
|
{
|
|
|
|
|
|
newFeature.set_Value(i, dicField.Value);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
cursor = this.FeatureClass.Insert(true);
|
|
|
|
|
|
cursor.InsertFeature(newFeature);
|
|
|
|
|
|
cursor.Flush();
|
|
|
|
|
|
result = true;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
|
{
|
|
|
|
|
|
throw ex;
|
|
|
|
|
|
}
|
|
|
|
|
|
finally
|
|
|
|
|
|
{
|
|
|
|
|
|
if (cursor != null)
|
|
|
|
|
|
{
|
|
|
|
|
|
Marshal.ReleaseComObject(cursor);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
return result;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
|
/// 获取所有字段
|
|
|
|
|
|
/// </summary>
|
|
|
|
|
|
/// <returns></returns>
|
|
|
|
|
|
public List<K_Field> GetFields()
|
|
|
|
|
|
{
|
|
|
|
|
|
List<K_Field> result = new List<K_Field>();
|
|
|
|
|
|
try
|
|
|
|
|
|
{
|
|
|
|
|
|
if (this.FeatureClass != null)
|
|
|
|
|
|
{
|
|
|
|
|
|
for (int i = 0; i < this.FeatureClass.Fields.FieldCount; i++)
|
|
|
|
|
|
{
|
|
|
|
|
|
K_Field field = new K_Field() { Name = this.FeatureClass.Fields.get_Field(i).Name, AliasName = this.FeatureClass.Fields.get_Field(i).AliasName, Type = this.FeatureClass.Fields.get_Field(i).Type };
|
|
|
|
|
|
result.Add(field);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
|
|
throw ex;
|
|
|
|
|
|
}
|
|
|
|
|
|
return result;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
|
/// 更新要素
|
|
|
|
|
|
/// </summary>
|
|
|
|
|
|
/// <param name="pFeature"></param>
|
|
|
|
|
|
/// <returns></returns>
|
|
|
|
|
|
public bool UpdateFeature(ESRI.ArcGIS.Geodatabase.IFeature pFeature)
|
|
|
|
|
|
{
|
|
|
|
|
|
bool result = false;
|
|
|
|
|
|
try
|
|
|
|
|
|
{
|
|
|
|
|
|
if (this.FeatureClass != null && pFeature != null && this.FeatureClass == pFeature.Class)
|
|
|
|
|
|
{
|
|
|
|
|
|
IFeature feature = GetFeature(pFeature.OID);
|
|
|
|
|
|
feature.Shape = pFeature.ShapeCopy;
|
|
|
|
|
|
for (int i = 0; i < feature.Fields.FieldCount; i++)
|
|
|
|
|
|
{
|
|
|
|
|
|
IField field = feature.Fields.get_Field(i);
|
|
|
|
|
|
if (field.Name.ToUpper() == "SHAPE")
|
|
|
|
|
|
continue;
|
|
|
|
|
|
int index = pFeature.Fields.FindField(field.Name);
|
|
|
|
|
|
if (index == -1)
|
|
|
|
|
|
continue;
|
|
|
|
|
|
if (pFeature.Fields.get_Field(index).Type == field.Type)
|
|
|
|
|
|
{
|
|
|
|
|
|
feature.set_Value(i, pFeature.get_Value(index));
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
feature.Store();
|
|
|
|
|
|
result = true;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
|
{
|
|
|
|
|
|
throw ex;
|
|
|
|
|
|
}
|
|
|
|
|
|
return result;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
|
/// 从当前的要素类中删除指定的要素对象
|
|
|
|
|
|
/// </summary>
|
|
|
|
|
|
/// <param name="OID">OID</param>
|
|
|
|
|
|
public bool DelFeatures(int OID)
|
|
|
|
|
|
{
|
|
|
|
|
|
bool result = false;
|
|
|
|
|
|
try
|
|
|
|
|
|
{
|
|
|
|
|
|
if (this.FeatureClass != null)
|
|
|
|
|
|
{
|
|
|
|
|
|
IFeature feature = this.FeatureClass.GetFeature(OID);
|
|
|
|
|
|
feature.Delete();
|
|
|
|
|
|
feature.Store();
|
|
|
|
|
|
result = true;
|
|
|
|
|
|
}
|
|
|
|
|
|
return result;
|
|
|
|
|
|
}
|
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
|
{
|
|
|
|
|
|
throw ex;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
|
/// 向当前要素类添加字段
|
|
|
|
|
|
/// </summary>
|
|
|
|
|
|
/// <param name="pFieldName">字段</param>
|
|
|
|
|
|
public bool AddField(ESRI.ArcGIS.Geodatabase.IField pField)
|
|
|
|
|
|
{
|
|
|
|
|
|
ISchemaLock pSchemaLock = FeatureClass as ISchemaLock;
|
|
|
|
|
|
try
|
|
|
|
|
|
{
|
|
|
|
|
|
if (pSchemaLock == null)
|
|
|
|
|
|
{
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
pSchemaLock.ChangeSchemaLock(esriSchemaLock.esriExclusiveSchemaLock);
|
|
|
|
|
|
if (FeatureClass.Fields.FindField(pField.Name) == -1)
|
|
|
|
|
|
FeatureClass.AddField(pField);
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
|
{
|
|
|
|
|
|
throw ex;
|
|
|
|
|
|
}
|
|
|
|
|
|
finally
|
|
|
|
|
|
{
|
|
|
|
|
|
pSchemaLock.ChangeSchemaLock(esriSchemaLock.esriSharedSchemaLock);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
|
/// 向当前要素类添加字段
|
|
|
|
|
|
/// </summary>
|
|
|
|
|
|
/// <param name="pFieldName">字段</param>
|
|
|
|
|
|
public bool AddField(string pFieldName, esriFieldType pFieldType, string pAliasName)
|
|
|
|
|
|
{
|
|
|
|
|
|
ISchemaLock pSchemaLock = FeatureClass as ISchemaLock;
|
|
|
|
|
|
try
|
|
|
|
|
|
{
|
|
|
|
|
|
if (pSchemaLock == null || string.IsNullOrWhiteSpace(pFieldName))
|
|
|
|
|
|
{
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
if (FeatureClass.Fields.FindField(pFieldName) == -1)
|
|
|
|
|
|
{
|
|
|
|
|
|
IFieldEdit field = new FieldClass();
|
|
|
|
|
|
field.Name_2 = pFieldName;
|
|
|
|
|
|
field.AliasName_2 = pAliasName;
|
|
|
|
|
|
field.Type_2 = pFieldType;
|
|
|
|
|
|
pSchemaLock.ChangeSchemaLock(esriSchemaLock.esriExclusiveSchemaLock);
|
|
|
|
|
|
FeatureClass.AddField(field);
|
|
|
|
|
|
}
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
|
{
|
|
|
|
|
|
throw ex;
|
|
|
|
|
|
}
|
|
|
|
|
|
finally
|
|
|
|
|
|
{
|
|
|
|
|
|
pSchemaLock.ChangeSchemaLock(esriSchemaLock.esriSharedSchemaLock);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
|
/// 重命名要素类
|
|
|
|
|
|
/// </summary>
|
|
|
|
|
|
/// <param name="newName">修改后的要素类名称</param>
|
|
|
|
|
|
public bool RenameFeatureClass(string newName)
|
|
|
|
|
|
{
|
|
|
|
|
|
bool renameResult = false;
|
|
|
|
|
|
ISchemaLock pSchemaLock = null;
|
|
|
|
|
|
try
|
|
|
|
|
|
{
|
|
|
|
|
|
if (this.FeatureClass == null)
|
|
|
|
|
|
{
|
|
|
|
|
|
return renameResult;
|
|
|
|
|
|
}
|
|
|
|
|
|
IDataset dataSet = (FeatureClass as IDataset);
|
|
|
|
|
|
if (dataSet != null && dataSet.CanRename())
|
|
|
|
|
|
{
|
|
|
|
|
|
pSchemaLock = FeatureClass as ISchemaLock;
|
|
|
|
|
|
if (pSchemaLock != null)
|
|
|
|
|
|
{
|
|
|
|
|
|
pSchemaLock.ChangeSchemaLock(esriSchemaLock.esriExclusiveSchemaLock);
|
|
|
|
|
|
}
|
|
|
|
|
|
dataSet.Rename(newName);
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
return renameResult;
|
|
|
|
|
|
}
|
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
|
{
|
|
|
|
|
|
throw new Exception("重命名要素类(" + (FeatureClass as FeatureClass).BrowseName + "-" + newName + ")失败：" + ex.Message);
|
|
|
|
|
|
}
|
|
|
|
|
|
finally
|
|
|
|
|
|
{
|
|
|
|
|
|
if (pSchemaLock != null)
|
|
|
|
|
|
{
|
|
|
|
|
|
pSchemaLock.ChangeSchemaLock(esriSchemaLock.esriSharedSchemaLock);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
|
/// 从当前要素类中删除指定的字段
|
|
|
|
|
|
/// </summary>
|
|
|
|
|
|
/// <param name="pFieldName">字段名称</param>
|
|
|
|
|
|
public bool DeleteField(string pFieldName)
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{
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ISchemaLock pSchemaLock = FeatureClass as ISchemaLock;
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try
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{
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if (pSchemaLock == null)
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return false;
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pSchemaLock.ChangeSchemaLock(esriSchemaLock.esriExclusiveSchemaLock);
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int index = FeatureClass.FindField(pFieldName);
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if (index == -1)
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return true;
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FeatureClass.DeleteField(FeatureClass.Fields.get_Field(index));
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return true;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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finally
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{
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pSchemaLock.ChangeSchemaLock(esriSchemaLock.esriSharedSchemaLock);
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}
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}
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/// <summary>
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/// 将数据拷贝到目标要素类中
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/// </summary>
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/// <param name="pFc">目标要素类</param>
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/// <param name="pFilter">过滤条件</param>
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/// <param name="pIsCut">是否裁剪</param>
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public bool FcToFc(IFeatureClass pFc, IQueryFilter pFilter, bool pIsCut)
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{
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IFeatureCursor S_Cursor = null;
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IFeatureCursor T_Cursor = null;
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try
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{
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if (FeatureClass == null || pFc == null) return false;
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Dictionary<int, int> dicField = new Dictionary<int, int>();
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for (int i = 0; i < pFc.Fields.FieldCount; i++)
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{
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IField field = pFc.Fields.Field[i];
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if (field.Name == pFc.ShapeFieldName || field.Name.Contains(pFc.ShapeFieldName) || field.Name == pFc.OIDFieldName || !field.Editable) continue;
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int index = FeatureClass.Fields.FindField(field.Name);
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if (index == -1)
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index = FeatureClass.Fields.FindFieldByAliasName(field.AliasName);
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if (index == -1)
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continue;
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|
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dicField.Add(i, index);
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|
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}
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|
|
S_Cursor = FeatureClass.Search(pFilter, true);
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|
|
IFeature f = null;
|
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|
|
IFeatureBuffer buffer = pFc.CreateFeatureBuffer();
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|
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T_Cursor = pFc.Insert(true);
|
|
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|
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while ((f = S_Cursor.NextFeature()) != null)
|
|
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|
|
|
{
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|
|
buffer.Shape = f.ShapeCopy;
|
|
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|
|
if (pFilter is ISpatialFilter && pIsCut)
|
|
|
|
|
|
{
|
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|
|
if (FeatureAPI.IsInterSect((pFilter as ISpatialFilter).Geometry, f.ShapeCopy))
|
|
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|
|
|
{
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|
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|
|
|
buffer.Shape = FeatureAPI.InterSect(f.ShapeCopy, (pFilter as SpatialFilterClass).Geometry);
|
|
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|
|
}
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else
|
|
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|
|
|
{
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|
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|
|
continue;
|
|
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|
|
|
}
|
|
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|
|
}
|
|
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|
|
|
foreach (int item in dicField.Keys)
|
|
|
|
|
|
{
|
|
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|
|
|
buffer.Value[item] = f.Value[dicField[item]];
|
|
|
|
|
|
}
|
|
|
|
|
|
T_Cursor.InsertFeature(buffer);
|
|
|
|
|
|
}
|
|
|
|
|
|
T_Cursor.Flush();
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
catch (Exception)
|
|
|
|
|
|
{
|
|
|
|
|
|
throw;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
