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  • C#:MapControl基本操作代码整理

    整理了 MapConrol各基本功能的实现代码

    复制代码
    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    //直接引用时需替换成自己当前的命名空间
    {
        public class MapBaseOperate
        {
            /// <summary>
            /// 添加SHP文当
            /// </summary>
            /// <param name="mapControl"></param>
            public static void AddShapeFile(IMapControlDefault mapControl)
            {
                OpenFileDialog openfileDlg = new OpenFileDialog();
                openfileDlg.Title = "添加shp图层文件";
                openfileDlg.Filter = "map document (*.shp)|*.shp";
                openfileDlg.ShowDialog();
                string filepath = openfileDlg.FileName;
    
                bool exist = File.Exists(filepath);
                if (!exist)
                {
                    MessageBox.Show("路径不存在!");
                    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
                {
                    //加载图层文件
                    mapControl.AddShapeFile(path, filename);
    
                    //设置MapControl的显示范围到数据的全局范围
                    mapControl.Extent = mapControl.FullExtent;
                }
                catch (System.Exception ex)
                {
                    MessageBox.Show("添加图层文件失败!" + ex.Message);
                }
                
            }
    
            /// <summary>
            /// 添加LYR文当
            /// </summary>
            /// <param name="mapControl"></param>
            public static void AddLayerFile(IMapControlDefault mapControl)
            {
                OpenFileDialog openfileDlg = new OpenFileDialog();
                openfileDlg.Title = "添加lyr图层文件";
                openfileDlg.Filter = "map documents (*.lyr)|*.lyr";
                openfileDlg.ShowDialog();
                string filepath = openfileDlg.FileName;
    
                bool exist = File.Exists(filepath);
                if (!exist)
                {
                    MessageBox.Show("路径不存在!");
                    return;
                }
                try
                {
                    mapControl.AddLayerFromFile(filepath);
    
                    //设置MapControl的显示范围到数据的全局范围
                    mapControl.Extent = mapControl.FullExtent;
                }
                catch (System.Exception ex)
                {
                    MessageBox.Show("添加图层文件失败!" + ex.Message);
                }
            }
    
            /// <summary>
            /// 删除地图所有图层
            /// </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("删除图层失败!" + ex.Message);
                }
            }
    
            /// <summary>
            /// 将最底图层,移动到最上层
            /// </summary>
            public static void MoveLayerToTop(IMapControlDefault mapControl)
            {
                
                try
                {
                    if (mapControl.LayerCount > 0)
                    {
                        mapControl.MoveLayerTo(mapControl.LayerCount - 1, 0);
                    }
                }
                catch (System.Exception ex)
                {
                    MessageBox.Show("移动图层失败!" + ex.Message);
                }
            }
    
            /// <summary>
            /// 加载地图文当
            /// </summary>
            /// <param name="mapControl"></param>
            public static void LoadMapDocument(IMapControlDefault mapControl)
            {
                OpenFileDialog openfileDlg = new OpenFileDialog();
                openfileDlg.Title = "加载地图文当";
                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 + "不是有效的地图文当!");
                }
            }
    
            /// <summary>
            /// 加载特定地图文当
            /// </summary>
            /// <param name="mapControl"></param>
            public static void LoadSpecificMapDocument(IMapControlDefault mapControl, string specificMapName)
            {
                OpenFileDialog openfileDlg = new OpenFileDialog();
                openfileDlg.Title = "加载特定地图文当";
                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 + "不是有效的地图文当!");
                }
            }
    
            /// <summary>
            /// By MapDocument
            /// </summary>
            public static IMapDocument LoadMapDoc(IMapControlDefault mapControl)
            {
                MapDocument mapdoc = new MapDocument();
    
                try
                {
                    OpenFileDialog openfileDlg = new OpenFileDialog();
                    openfileDlg.Title = "加载地图文当";
                    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("加载地图文当失败" + 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("保存地图文档失败!");
                    return;
                }
    
                if (mapDoc.get_IsReadOnly(mapDoc.DocumentFilename) == true)
                {
                    MessageBox.Show("文档只读无法保存!");
                }
                
                try
                {
                    mapDoc.Save(mapDoc.UsesRelativePaths,true);
                    MessageBox.Show("保存地图文档成功!");
    
                }
                catch (System.Exception ex)
                {
                     MessageBox.Show("保存地图文档失败!" + ex.Message);
                }
    
            }
    
            /// <summary>
            /// By MapDocument
            /// </summary>
            /// <param name="mapDoc"></param>
            public static void SaveAsMapDoc(IMapDocument mapDoc)
            {
                if (null == mapDoc)
                {
                    MessageBox.Show("保存地图文档失败!");
                    return;
                }
    
                if (mapDoc.get_IsReadOnly(mapDoc.DocumentFilename) == true)
                {
                    MessageBox.Show("文档只读无法保存!");
                }
                
                SaveFileDialog savefiledlg = new SaveFileDialog();
                savefiledlg.Title = "保存地图文当";
                savefiledlg.Filter = "map document (*.mxd)|*.mxd";
                savefiledlg.ShowDialog();
                string filepath = savefiledlg.FileName;
                try
                {
                    mapDoc.SaveAs(filepath,mapDoc.UsesRelativePaths,true);
                    MessageBox.Show("保存地图文档成功!");
    
                }
                catch (System.Exception ex)
                {
                     MessageBox.Show("保存地图文档失败!" + ex.Message);
                }
    
            }
    
            /// <summary>
            /// 缩小
            /// </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("缩小失败!" + 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("放大失败!" + 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("漫游失败!" + ex.Message); } } /// <summary> /// 全图 /// </summary> /// <param name="mapControl"></param> public static void FullExtent(IMapControlDefault mapControl) { try { mapControl.Extent = mapControl.FullExtent; } catch (System.Exception ex) { MessageBox.Show("全图失败!" + ex.Message); } } /// <summary> /// 写文字(待优化) /// </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("写文字失败!" + ex); } } /// <summary> /// 画图 /// </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("画图失败!" + ex); } } /// <summary> /// 颜色 /// </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> /// 框选指定区域(鹰眼功能) /// </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; //在绘制前,清除axMapControl2中的任何图像元素 graphicsContainer.DeleteAllElements(); IElement element = new RectangleElementClass(); element.Geometry = envelope; //设置鹰眼中的红线 //产生一个符号对象 ILineSymbol outLineSymbol = new SimpleLineSymbolClass(); outLineSymbol.Width = 2; outLineSymbol.Color = GetColor(255, 0, 0, 255); //设置颜色属性 //设置填充符号属性 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("框选指定区域失败!" + ex); } } /// <summary> /// 清除选择 /// </summary> /// <param name="mapControl"></param> public static void ClearSelection(IMapControlDefault mapControl) { try { IActiveView activeView = (IActiveView)mapControl.Map; //清除数据集前必须先刷新 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("清除选择失败!" + ex); } } /// <summary> /// 名称查询 /// </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("依据名称查询选中要素失败!" + ex); } } /// <summary> /// 依据指定的Geometry(Shape)选中要素 /// </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("依据指定的Geometry(Shape)选中要素失败!" + 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间数据同步失败!" + 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与PageLayout数据同步失败!" + ex); } } /// <summary> /// 屏幕变化后刷新屏幕 /// </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("刷新屏幕失败!" + ex); } } } }
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  • 原文地址:https://www.cnblogs.com/CSharpLover/p/5984486.html
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