C#:MapControl基本操作代码整理
整理了 MapConrol各基本功能的实现代码
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); } } } }