ArcEngine 鹰眼的实现.docVIP

ArcEngine 鹰眼的实现using System; using System.Collections.Generic; using System.Text; using ESRI.ArcGIS.Carto; using ESRI.ArcGIS.Controls; using ESRI.ArcGIS.Geometry; using ESRI.ArcGIS.Display; namespace ArcEngineCommon.Controls { public class MapMapControlEagle { //记录层的内容以及次序(使用字典) private System.Collections.Generic.Dictionaryint, ILayer _layerLog; //地图的主显示控件 private AxMapControl _mapControlMain; //地图的鹰眼显示控件 private AxMapControl _mapControlEagle; //Activeview操作对象 private ActiveView _activeView; //渲染的样式 private IFillSymbol _fillSymbol; //记录移动的个数，为移动过程中显示红框用。 private int _moveCount = 0; //标识是否在拖动 private bool _isTrackingSmallViewer = false; //红色的框范围 private IEnvelope _envelope; //鹰眼小地图的红框 private IMoveEnvelopeFeedback _smallViewerEnvelope; //拖动时鼠标落点 private IPoint _smallViewerMouseDownPt; /// summary /// 鹰眼显示程序 /// /summary /// param name=pMapControlMain主地图显示控件/param /// param name=pMapControlEagle鹰眼地图显示控件/param public MapMapControlEagle(AxMapControl pMapControlMain, AxMapControl pMapControlEagle) { this._mapControlMain = pMapControlMain; this._mapControlEagle = pMapControlEagle; this._layerLog = new Dictionaryint, ILayer(); this._activeView = new ActiveView(this._mapControlEagle.ActiveView); //注册地图主控件视图范围更新事件 this._mapControlMain .OnExtentUpdated +=new IMapControlEvents2_Ax_OnExtentUpdatedEventHandler(this.axMapControlMian_OnExtentUpdated); //注册地图主控件视图数据更新事件 this._mapControlMain.OnAfterScreenDraw += new IMapControlEvents2_Ax_OnAfterScreenDrawEventHandler(this.axMapControl_OnAfterScreenDraw); //注册鹰眼地图控件的点击居中 this._mapControlEagle .OnMouseDown +=new IMapControlEvents2_Ax_OnMouseDownEventHandler(this.axMapControl2_OnMouseDown); this._mapControlEagle .OnMouseMove +=new IMapControlEvents2_Ax_OnMouseMoveEventHandler(this.axMapControl2_OnMouseMove); this._mapControlEagle .OnMouseUp +=new IMapControlEvents2_Ax_OnMouseUpEventHandler(this.axMapControl2_OnMouseUp); } //当地图主控件视图范围刷新时触发 private void axMapControlMian_OnExtentUpdated(object sender, ESRI.ArcGIS.Controls.IMapControlEven