CS_GIS/GIS/GISUI.Win.ArcGIS/Standard/FeatureLayerHelper.cs

//======================================================================
//
//        Copyright (C) 2012
//
//        CLR 版本: 4.0.30319.296
//        命名空间: Tofly.GISUI.Win.ArcGIS.Standard
//        类    名: FeatureLayerHelper
//        创 建 人: 单成冲
//        创建时间: 2013-3-8 9:55:30
//        修 改 人: 
//        修改时间: 
//
//======================================================================

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Geodatabase;
using Tofly.Data.General;
using Tofly.GIS.ArcGIS.Util;
using Tofly.Core.Context.Support;
using Tofly.Core.Context;
using Tofly.GIS.ArcGIS.SpatialDatabase;
using ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.Display;
using System.Threading;

namespace Tofly.GISUI.Win.ArcGIS.Standard
{
    /// <summary>
    /// 图层帮助类
    /// </summary>
    public static class FeatureLayerHelper
    {
        /// <summary>
        /// 获取图层选择集id
        /// </summary>
        /// <param name="pFeaLyr"></param>
        /// <returns></returns>
        public static List<int> GetSelectedIDs(IFeatureLayer pFeaLyr)
        {
            List<int> selectId = new List<int>();
            if (pFeaLyr != null)
            {
                IFeatureSelection pFeatureSelection = pFeaLyr as IFeatureSelection;
                IEnumIDs pEnumIds = pFeatureSelection.SelectionSet.IDs;
                pEnumIds.Reset();
                int id;
                for (int i = 0; i < pFeatureSelection.SelectionSet.Count; i++)
                {
                    id = pEnumIds.Next();
                    selectId.Add(id);
                }
            }
            return selectId;
        }

        /// <summary>
        /// 将图层转换为ITable
        /// </summary>
        /// <param name="pFeatureLayer"></param>
        /// <returns></returns>
        public static Tofly.Data.General.ITable ConvertLayerToITable(ESRI.ArcGIS.Carto.IFeatureLayer pFeatureLayer)
        {
            try
            {
                ESRI.ArcGIS.Geodatabase.IDataset dataset = pFeatureLayer.FeatureClass as ESRI.ArcGIS.Geodatabase.IDataset;
                ESRI.ArcGIS.Geodatabase.ITable pTable = pFeatureLayer.FeatureClass as ESRI.ArcGIS.Geodatabase.ITable;
                ConnectionInfo connectionInfo = WorkspaceToConnectionInfoUtils.ConvertTo(dataset.Workspace);
                IApplicationContext context = ContextRegistry.GetContext();
                Tofly.Data.General.IWorkspaceFactory pWorkspaceFactory = context.GetObject("WorkspaceFactory_ADO") as Tofly.Data.General.IWorkspaceFactory;
                Tofly.Data.General.IWorkspace workspace = pWorkspaceFactory.OpenWorkspace(connectionInfo);
                //workspace.OpenTable(
                InterceptorTableClass tableClass = new InterceptorTableClass(workspace, pTable, dataset.Name);
                Tofly.Data.General.ITable table = tableClass as Tofly.Data.General.ITable;
                return table;
            }
            catch (Exception ex)
            {
                return null;
            }
        }

        /// <summary>
        /// 闪烁点
        /// </summary>
        /// <param name="pScreenDisplay"> </param>
        /// <param name="pGeometry"></param>
        private static void FlashPoint(IScreenDisplay pScreenDisplay, IGeometry pGeometry)
        {
            try
            {
                ISimpleMarkerSymbol pMarkerSymbol;
                ISymbol pSymbol;
                //默认线符号
                pMarkerSymbol = new SimpleMarkerSymbol();
                pMarkerSymbol.Style = esriSimpleMarkerStyle.esriSMSCircle;

                //用非要素非屏幕颜色画
                pSymbol = pMarkerSymbol as ISymbol;
                pSymbol.ROP2 = esriRasterOpCode.esriROPNotXOrPen;
                //在地图上画该要素形状
                pScreenDisplay.SetSymbol(pMarkerSymbol as ISymbol);
                pScreenDisplay.DrawPoint(pGeometry);
                Thread.Sleep(300);
                pScreenDisplay.DrawPoint(pGeometry);
            }
            catch (Exception ex)
            {
               
            }

        }

        /// <summary>
        /// 闪烁线
        /// </summary>
        /// <param name="pDisplay"></param>
        /// <param name="pGeometry"></param>        
        private static void FlashLine(IScreenDisplay pScreenDisplay, IGeometry pGeometry)
        {
            try
            {
                ISimpleLineSymbol pLineSymbol;
                ISymbol pSymbol;
                //默认线符号
                pLineSymbol = new SimpleLineSymbolClass();
                pLineSymbol.Width = 4;
                //用非要素非屏幕颜色画
                pSymbol = pLineSymbol as ISymbol;
                pSymbol.ROP2 = esriRasterOpCode.esriROPNotXOrPen;
                //在地图上画该要素形状
                pScreenDisplay.SetSymbol(pLineSymbol as ISymbol);
                pScreenDisplay.DrawPolyline(pGeometry);
                Thread.Sleep(300);
                pScreenDisplay.DrawPolyline(pGeometry);
            }
            catch (Exception ex)
            {

            }
        }

        /// <summary>
        /// 闪烁面
        /// </summary>
        /// <param name="pDisplay"></param>
        /// <param name="pGeometry"></param>
        private static void FlashPolygon(IScreenDisplay pScreenDisplay, IGeometry pGeometry)
        {
            try
            {
                ISimpleFillSymbol pFillSymbol;
                ISymbol pSymbol;
                //默认线符号
                pFillSymbol = new SimpleFillSymbol();
                //用非要素非屏幕颜色画
                pSymbol = pFillSymbol as ISymbol;
                pSymbol.ROP2 = esriRasterOpCode.esriROPNotXOrPen;
                //在地图上画该要素形状
                pScreenDisplay.SetSymbol(pFillSymbol as ISymbol);
                pScreenDisplay.DrawPolygon(pGeometry);
                Thread.Sleep(300);
                pScreenDisplay.DrawPolygon(pGeometry);
            }
            catch (Exception ex)
            {
                
            }
        }

        /// <summary>
        /// 闪烁几何体
        /// </summary>
        /// <param name="pMap"></param>
        /// <param name="pGeo"></param>
        public static void FlashGeometry(IMap pMap, IGeometry pGeometry)
        {
            try
            {
                if (pGeometry == null || pGeometry.IsEmpty) return;
                if (pMap.SpatialReference != null) pGeometry.Project(pMap.SpatialReference);
                IActiveView pAv = pMap as IActiveView;
                pAv.ScreenDisplay.StartDrawing(0, -1);
                switch (pGeometry.GeometryType)
                {
                    case esriGeometryType.esriGeometryPoint:
                        FlashPoint(pAv.ScreenDisplay, pGeometry);
                        break;
                    case esriGeometryType.esriGeometryPolygon:
                        FlashPolygon(pAv.ScreenDisplay, pGeometry);
                        break;
                    case esriGeometryType.esriGeometryPolyline:
                        FlashLine(pAv.ScreenDisplay, pGeometry);
                        break;

                }
                pAv.ScreenDisplay.FinishDrawing();
                pAv.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
            }
            catch (Exception ex)
            {

            }
        }

        /// <summary>
        /// 闪烁要素
        /// </summary>
        /// <param name="pMap"></param>
        /// <param name="pFea"></param>
        public static void FlashFeature(IMap pMap, IFeature pFeature)
        {
            try
            {
                if (pFeature.Shape == null || pFeature.Shape.IsEmpty) return;
                IActiveView pActiveView = pMap as IActiveView;
                pActiveView.ScreenDisplay.StartDrawing(0, -1);
                switch (pFeature.Shape.GeometryType)
                {
                    case esriGeometryType.esriGeometryPoint:
                        FlashPoint(pActiveView.ScreenDisplay, pFeature.Shape);
                        break;
                    case esriGeometryType.esriGeometryPolygon:
                        FlashPolygon(pActiveView.ScreenDisplay, pFeature.Shape);
                        break;
                    case esriGeometryType.esriGeometryPolyline:
                        FlashLine(pActiveView.ScreenDisplay, pFeature.Shape);
                        break;

                }
                pActiveView.ScreenDisplay.FinishDrawing();
                pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
            }
            catch (Exception ex)
            {
                
            }
        }
    }
}