AE 中鹰眼实现

  private void axMapControl1_OnMapReplaced(object sender, IMapControlEvents2_OnMapReplacedEvent e)//同步mapcontrol1  与 2
        {
            //get the current document name from the MapControl
            m_mapDocumentName = m_mapControl.DocumentFilename;

            //if there is no MapDocument, diable the Save menu and clear the statusbar
            if (m_mapDocumentName == string.Empty)
            {
                menuSaveDoc.Enabled = false;
                statusBarXY.Text = string.Empty;
            }
            else
            {
                //enable the Save manu and write the doc name to the statusbar
                menuSaveDoc.Enabled = true;
                statusBarXY.Text = System.IO.Path.GetFileName(m_mapDocumentName);
            }
            axMapControl2.LoadMxFile(axMapControl1.DocumentFilename);

            axMapControl2.Extent = axMapControl2.FullExtent;
        }
 private void axMapControl1_OnExtentUpdated(object sender, IMapControlEvents2_OnExtentUpdatedEvent e)   
        { // 得到新范围

            IEnvelope pEnv =  (IEnvelope)e.newEnvelope ;
            IGraphicsContainer pGra = axMapControl2.Map as IGraphicsContainer;
            IActiveView pAv = pGra as IActiveView;
            //在绘制前，清除axMapControl2中的任何图形元素
            pGra.DeleteAllElements();
            IRectangleElement pRectangeEle = new RectangleElementClass();
            IElement pEle = pRectangeEle as IElement;
            pEle.Geometry = pEnv;
            //设置鹰眼图中的红线框
            IRgbColor pColor = new RgbColorClass();
            pColor.Red = 255;
            pColor.Green = 100;
            pColor.Blue = 0;
            pColor.Transparency = 255;
            //产生一个线符号对象
            ILineSymbol pOutLine = new SimpleLineSymbolClass();
            pOutLine.Width = 2;
            pOutLine.Color = pColor;
            //设置颜色属性
            pColor = new RgbColorClass();

            pColor.Red = 255;

            pColor.Green = 0;

            pColor.Blue = 0;

            pColor.Transparency = 0;
            /////////////////    //设置填充符号的属性
            IFillSymbol pFillSymbol = new SimpleFillSymbolClass();
            pFillSymbol.Color = pColor;
            pFillSymbol.Outline = pOutLine;
            IFillShapeElement pFillShapeEle = pEle as IFillShapeElement;
            pFillShapeEle.Symbol = pFillSymbol;
            pGra.AddElement((IElement)pFillShapeEle,0);
            pAv.PartialRefresh(esriViewDrawPhase.esriViewGraphics ,null,null);

        }

        private void axMapControl2_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e)
        {
            IPoint pPt = new PointClass();
            pPt.PutCoords(e.mapX, e.mapY);
            axMapControl1.CenterAt(pPt);
        }