C#:MapControl基本操作代碼整理

整理了 MapConrol各基本功能的實現代碼

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Windows.Forms;

using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.Display;
using ESRI.ArcGIS.Geodatabase;
 
namespace MapCtrol　　　　//直接引用時需替換成自己當前的命名空間
{
    public class MapBaseOperate
    {
        /// <summary>
        /// 添加SHP文當
        /// </summary>
        /// <param name="mapControl"></param>
        public static void AddShapeFile(IMapControlDefault mapControl)
        {
            OpenFileDialog openfileDlg = new OpenFileDialog();
            openfileDlg.Title = "添加shp圖層文件";
            openfileDlg.Filter = "map document (*.shp)|*.shp";
            openfileDlg.ShowDialog();
            string filepath = openfileDlg.FileName;

            bool exist = File.Exists(filepath);
            if (!exist)
            {
                MessageBox.Show("路徑不存在！");
                return;
            }

            string path;
            string filename;
            //int istart = filepath.LastIndexOf("\\");
            //int iend = filepath.LastIndexOf(".");
            //path = filepath.Substring(0, istart);
            //filename = filepath.Substring(istart + 1, iend - istart - 1);

            FileInfo fileinfo = new FileInfo(filepath);
            path = filepath.Substring(0, filepath.Length - fileinfo.Name.Length);
            filename = fileinfo.Name;
            try
            {
                //加載圖層文件
                mapControl.AddShapeFile(path, filename);

                //設置MapControl的顯示范圍到數據的全局范圍
                mapControl.Extent = mapControl.FullExtent;
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("添加圖層文件失敗！" + ex.Message);
            }
            
        }

        /// <summary>
        /// 添加LYR文當
        /// </summary>
        /// <param name="mapControl"></param>
        public static void AddLayerFile(IMapControlDefault mapControl)
        {
            OpenFileDialog openfileDlg = new OpenFileDialog();
            openfileDlg.Title = "添加lyr圖層文件";
            openfileDlg.Filter = "map documents (*.lyr)|*.lyr";
            openfileDlg.ShowDialog();
            string filepath = openfileDlg.FileName;

            bool exist = File.Exists(filepath);
            if (!exist)
            {
                MessageBox.Show("路徑不存在！");
                return;
            }
            try
            {
                mapControl.AddLayerFromFile(filepath);

                //設置MapControl的顯示范圍到數據的全局范圍
                mapControl.Extent = mapControl.FullExtent;
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("添加圖層文件失敗！" + ex.Message);
            }
        }

        /// <summary>
        /// 刪除地圖所有圖層
        /// </summary>
        public static void DeleteAllLayers(IMapControlDefault mapControl)
        {
            try
            {
                for (int i = mapControl.LayerCount - 1; i >= 0; i-- )
                {
                    mapControl.DeleteLayer(i);
                }
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("刪除圖層失敗！" + ex.Message);
            }
        }

        /// <summary>
        /// 將最底圖層,移動到最上層
        /// </summary>
        public static void MoveLayerToTop(IMapControlDefault mapControl)
        {
            
            try
            {
                if (mapControl.LayerCount > 0)
                {
                    mapControl.MoveLayerTo(mapControl.LayerCount - 1, 0);
                }
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("移動圖層失敗！" + ex.Message);
            }
        }

        /// <summary>
        /// 加載地圖文當
        /// </summary>
        /// <param name="mapControl"></param>
        public static void LoadMapDocument(IMapControlDefault mapControl)
        {
            OpenFileDialog openfileDlg = new OpenFileDialog();
            openfileDlg.Title = "加載地圖文當";
            openfileDlg.Filter = "map document (*.mxd)|*.mxd";
            openfileDlg.ShowDialog();
            string filepath = openfileDlg.FileName;
            if (mapControl.CheckMxFile(filepath))
            {
                mapControl.MousePointer = esriControlsMousePointer.esriPointerHourglass;
                mapControl.LoadMxFile(filepath, 0, Type.Missing);
                mapControl.MousePointer = esriControlsMousePointer.esriPointerDefault;
            }
            else
            {
                MessageBox.Show(filepath + "不是有效的地圖文當！");
            }
        }

        /// <summary>
        /// 加載特定地圖文當
        /// </summary>
        /// <param name="mapControl"></param>
        public static void LoadSpecificMapDocument(IMapControlDefault mapControl, string specificMapName)
        {
            OpenFileDialog openfileDlg = new OpenFileDialog();
            openfileDlg.Title = "加載特定地圖文當";
            openfileDlg.Filter = "map document (*.mxd)|*.mxd";
            openfileDlg.ShowDialog();
            string filepath = openfileDlg.FileName;

            if (mapControl.CheckMxFile(filepath))
            {
                if (string.IsNullOrWhiteSpace(specificMapName))
                {
                    int istart = filepath.LastIndexOf("\\");
                    int iend = filepath.LastIndexOf(".");
                    specificMapName = filepath.Substring(istart + 1, iend - istart - 1);
                }

                IArray arrayMap = mapControl.ReadMxMaps(filepath, Type.Missing);
                for (int i = 0; i < arrayMap.Count; i++)
                {
                    IMap map = arrayMap.get_Element(i) as IMap;
                    if (specificMapName == map.Name)
                    {
                        mapControl.MousePointer = esriControlsMousePointer.esriPointerHourglass;
                        mapControl.LoadMxFile(filepath, 0, Type.Missing);
                        mapControl.MousePointer = esriControlsMousePointer.esriPointerDefault;
                        break;
                    }
                }
            }
            else
            {
                MessageBox.Show(filepath + "不是有效的地圖文當！");
            }
        }

        /// <summary>
        /// By MapDocument
        /// </summary>
        public static IMapDocument LoadMapDoc(IMapControlDefault mapControl)
        {
            MapDocument mapdoc = new MapDocument();

            try
            {
                OpenFileDialog openfileDlg = new OpenFileDialog();
                openfileDlg.Title = "加載地圖文當";
                openfileDlg.Filter = "map document (*.mxd)|*.mxd";
                openfileDlg.ShowDialog();
                string filepath = openfileDlg.FileName;

                mapdoc.Open(filepath, "");

                for (int i = 0; i < mapdoc.MapCount; i++ )
                {
                    mapControl.Map = mapdoc.get_Map(i);
                }
                mapControl.Refresh();
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("加載地圖文當失敗" + ex.Message);
                mapdoc = null;
            }
            return mapdoc;

        }

        /// <summary>
        /// By MapDocument
        /// </summary>
        /// <param name="mapDoc"></param>
        public static void SaveMapDoc(IMapDocument mapDoc)
        {
            if (null == mapDoc)
            {
                MessageBox.Show("保存地圖文檔失敗！");
                return;
            }

            if (mapDoc.get_IsReadOnly(mapDoc.DocumentFilename) == true)
            {
                MessageBox.Show("文檔只讀無法保存！");
            }
            
            try
            {
                mapDoc.Save(mapDoc.UsesRelativePaths,true);
                MessageBox.Show("保存地圖文檔成功！");

            }
            catch (System.Exception ex)
            {
                 MessageBox.Show("保存地圖文檔失敗！" + ex.Message);
            }

        }

        /// <summary>
        /// By MapDocument
        /// </summary>
        /// <param name="mapDoc"></param>
        public static void SaveAsMapDoc(IMapDocument mapDoc)
        {
            if (null == mapDoc)
            {
                MessageBox.Show("保存地圖文檔失敗！");
                return;
            }

            if (mapDoc.get_IsReadOnly(mapDoc.DocumentFilename) == true)
            {
                MessageBox.Show("文檔只讀無法保存！");
            }
            
            SaveFileDialog savefiledlg = new SaveFileDialog();
            savefiledlg.Title = "保存地圖文當";
            savefiledlg.Filter = "map document (*.mxd)|*.mxd";
            savefiledlg.ShowDialog();
            string filepath = savefiledlg.FileName;
            try
            {
                mapDoc.SaveAs(filepath,mapDoc.UsesRelativePaths,true);
                MessageBox.Show("保存地圖文檔成功！");

            }
            catch (System.Exception ex)
            {
                 MessageBox.Show("保存地圖文檔失敗！" + ex.Message);
            }

        }

        /// <summary>
        /// 縮小
        /// </summary>
        /// <param name="mapControl"></param>
        public static void ZoomOut(IMapControlDefault mapControl)
        {
            try
            {
               mapControl.MousePointer = esriControlsMousePointer.esriPointerPageZoomOut;
            　　//IEnvelope ipEnv = mapControl.TrackRectangle();
            　　IEnvelope ipEnv = mapControl.Extent;
            　　ipEnv.Expand(2, 2, true);
            　　mapControl.Extent = ipEnv;
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("縮小失敗！" + ex.Message);
            }
        }

        /// <summary>
        /// 放大
        /// </summary>
        /// <param name="mapControl"></param>
        public static void ZoomIn(IMapControlDefault mapControl)
        {
            try
            {
               mapControl.MousePointer = esriControlsMousePointer.esriPointerPageZoomIn;
            　　IEnvelope ipEnv = mapControl.TrackRectangle();
            　　if (ipEnv.IsEmpty)
            　　{
                　　ipEnv = mapControl.Extent;
                　　ipEnv.Expand(0.5, 0.5, true);
            　　}
            　　mapControl.Extent = ipEnv;　　　　　　　　　　　　　　　　　　
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("放大失敗！" + ex.Message);
            }
        }

        /// <summary>
        /// 漫游
        /// </summary>
        /// <param name="mapControl"></param>
        public static void Pan(IMapControlDefault mapControl)
        {
            try
            {
                mapControl.MousePointer = esriControlsMousePointer.esriPointerPagePan;
                //IEnvelope ipEnv = mapControl.Extent;
                mapControl.Pan();
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("漫游失敗！" + ex.Message);
            }
        }

        /// <summary>
        /// 全圖
        /// </summary>
        /// <param name="mapControl"></param>
        public static void FullExtent(IMapControlDefault mapControl)
        {
            try
            {
                mapControl.Extent = mapControl.FullExtent;
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("全圖失敗！" + ex.Message);
            }
        }

        /// <summary>
        /// 寫文字(待優化)
        /// </summary>
        /// <param name="mapControl"></param>
        /// <param name="pGeom"></param>
        /// <param name="pColor"></param>
        /// <param name="text"></param>
        public static void DrawMapText(IMapControlDefault mapControl, IGeometry pGeom, IRgbColor pColor, string text)
        {
            try
            {
                if (null == pColor)
                {
                    pColor = new RgbColorClass();
                    pColor.Red = 255;
                    pColor.Green = 0;
                    pColor.Blue = 0;
                }
                ITextSymbol textsymbol = new TextSymbolClass();
                textsymbol.Color = pColor;
                if (null == text)
                {
                    text = "Draw Text";
                }
                textsymbol.Text = "Text";
                object symbol = textsymbol;
                mapControl.DrawText(pGeom, text, ref symbol);
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("寫文字失敗！" + ex);
            }
             
        }

        /// <summary>
        /// 畫圖
        /// </summary>
        /// <param name="mapControl"></param>
        /// <param name="pGeom"></param>
        /// <param name="pColor"></param>
        /// <param name="width"></param>
        public static void DrawMapShape(IMapControlDefault mapControl, IGeometry pGeom, IRgbColor pColor, int width)
        {
            try
            {
                if (null == pColor)
                {
                    pColor = new RgbColorClass();
                    pColor.Red = 255;
                    pColor.Green = 255;
                    pColor.Blue = 0;
                }

                if (width < 1 || width > 20)
                {
                    width = 5;
                }
                object symbol = null;
                if (pGeom.GeometryType == esriGeometryType.esriGeometryPolyline)
                {
                    ISimpleLineSymbol simpleLine = new SimpleLineSymbolClass();
                    simpleLine.Color = pColor;
                    simpleLine.Width = width;
                    symbol = simpleLine;
                }
                else
                {
                    ISimpleFillSymbol simpleFill = new SimpleFillSymbolClass();
                    simpleFill.Color = pColor;
                    symbol = simpleFill;
                }

                mapControl.DrawShape(pGeom, ref symbol); 
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("畫圖失敗！" + ex);
            }
        }

        /// <summary>
        /// 顏色
        /// </summary>
        /// <param name="r"></param>
        /// <param name="g"></param>
        /// <param name="b"></param>
        /// <param name="t"></param>
        /// <returns></returns>
        public static IRgbColor GetColor(int r, int g, int b, int t)
        {
            IRgbColor rgbcolor = new RgbColorClass();
            rgbcolor.Red = r;
            rgbcolor.Green = g;
            rgbcolor.Blue = b;
            rgbcolor.Transparency = (byte)t;
            return rgbcolor;
        }

        /// <summary>
        /// 框選指定區域（鷹眼功能）
        /// </summary>
        /// <param name="envelope">e.NewEnvelope</param>
        /// <param name="mapControl"></param>
        public static void ShowRectangleByEnvelope(IEnvelope envelope, IMapControlDefault mapControl)
        {
            try
            {
                IGraphicsContainer graphicsContainer = mapControl.Map as IGraphicsContainer;
                IActiveView activeView = graphicsContainer as IActiveView;

                //在繪制前，清除axMapControl2中的任何圖像元素
                graphicsContainer.DeleteAllElements();
                IElement element = new RectangleElementClass();
                element.Geometry = envelope;
                //設置鷹眼中的紅線
                //產生一個符號對象
                ILineSymbol outLineSymbol = new SimpleLineSymbolClass();
                outLineSymbol.Width = 2;
                outLineSymbol.Color = GetColor(255, 0, 0, 255);

                //設置顏色屬性
                //設置填充符號屬性
                IFillSymbol fillsymbol = new SimpleFillSymbolClass();
                fillsymbol.Color = GetColor(9, 0, 0, 0);
                fillsymbol.Outline = outLineSymbol;
                IFillShapeElement fillShapeElement = element as IFillShapeElement;
                fillShapeElement.Symbol = fillsymbol;
                graphicsContainer.AddElement((IElement)fillShapeElement, 0);
                activeView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("框選指定區域失敗！" + ex);
            }
        }

        /// <summary>
        /// 清除選擇
        /// </summary>
        /// <param name="mapControl"></param>
        public static void ClearSelection(IMapControlDefault mapControl)
        {
            try
            {
                IActiveView activeView = (IActiveView)mapControl.Map;
                //清除數據集前必須先刷新
                activeView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, mapControl.get_Layer(0), null);
                mapControl.Map.ClearSelection();
                activeView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, mapControl.get_Layer(0), null);
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("清除選擇失敗！" + ex);
            }
        }

        /// <summary>
        /// 名稱查詢
        /// </summary>
        /// <param name="mapControl"></param>
        /// <param name="value"></param>
        public static void SelectByName(IMapControlDefault mapControl, string field, string value)
        {
            try
            {
                string selectName = value.Trim();
                ILayer layer = mapControl.Map.get_Layer(0);
                IFeatureLayer featureLayer = layer as IFeatureLayer;
                IFeatureClass featureClass = featureLayer.FeatureClass;
                IQueryFilter queryFilter = new QueryFilterClass();
                IFeatureCursor featureCursor;
                IFeature feature = null; ;
                queryFilter.WhereClause = field + " = " + value;
                featureCursor = featureClass.Search(queryFilter, true);
                feature = featureCursor.NextFeature();
                if (null != feature)
                {
                    mapControl.Map.SelectFeature(layer, feature);
                    mapControl.Refresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
                }
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("依據名稱查詢選中要素失敗！" + ex);
            }
        }

        /// <summary>
        /// 依據指定的Geometry（Shape）選中要素
        /// </summary>
        /// <param name="mapControl"></param>
        /// <param name="geometry"></param>
        public static void SelectByShape(IMapControlDefault mapControl, IGeometry geometry)
        {
            try
            {
                mapControl.Map.SelectByShape(geometry, null, false);
                mapControl.Refresh(esriViewDrawPhase.esriViewGeoSelection, null, null);
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("依據指定的Geometry（Shape）選中要素失敗！" + ex);
            }
        }

        /// <summary>
        /// 同步到MapControl控件
        /// </summary>
        public static void CopyToMapControl(IMapControlDefault mapControl, IMapControlDefault toMapControl)
        {
            try
            {
                IObjectCopy objCopy = new ObjectCopyClass();
                object copyFromMap = mapControl.Map;
                object copyMap = objCopy.Copy(copyFromMap);
                object copyToMap = toMapControl.ActiveView.FocusMap;
                objCopy.Overwrite(copyMap, ref copyToMap);
                toMapControl.Extent = mapControl.FullExtent;
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("Map間數據同步失敗！" + ex);
            }
            
        }

        /// <summary>
        /// 同步到PageLayout控件
        /// </summary>
        public static void CopyToPageLayout(IMapControlDefault mapControl, IPageLayoutControlDefault pageLayoutControl)
        {
            try
            {
                IObjectCopy objCopy = new ObjectCopyClass();
                object copyFromMap = mapControl.Map;
                object copyMap = objCopy.Copy(copyFromMap);
                object copyToMap = pageLayoutControl.ActiveView.FocusMap;
                objCopy.Overwrite(copyMap, ref copyToMap);
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("Map與PageLayout數據同步失敗！" + ex);
            }
            
        }

        /// <summary>
        /// 屏幕變化后刷新屏幕
        /// </summary>
        /// <param name="mapControl"></param>
        public static void AfterScreenDraw(IMapControlDefault mapControl)
        {
            try
            {
                IActiveView activeView = (IActiveView)mapControl.ActiveView.FocusMap;
                IDisplayTransformation displayTransformation = activeView.ScreenDisplay.DisplayTransformation;
                displayTransformation.VisibleBounds = mapControl.Extent;
                mapControl.ActiveView.Refresh();
            }
            catch (System.Exception ex)
            {
                MessageBox.Show("刷新屏幕失敗！" + ex);
            }

        }
    }
}