C\#매의 눈 을 만 드 는 상세 한 전 과정(주석 포함)인 스 턴 스 코드

axMapControl 1 은 메 인 컨트롤 이 고,axMapControl 2 는 매의 눈 컨트롤 이다.
이벤트 응답 을 잘 봐 야 합 니 다.
 
1.매의 눈 지도 자원 불 러 오기

privatevoid axMapControl1_OnMapReplaced(object sender, IMapControlEvents2_OnMapReplacedEvent e)
        {
            //              ，           
            axMapControl2.LoadMxFile(axMapControl1.DocumentFilename);
            axMapControl2.Extent = axMapControl2.FullExtent;
        }

2.매의 눈 사각형 상자 그리 기

private void axMapControl1_OnExtentUpdated(object sender, IMapControlEvents2_OnExtentUpdatedEvent e)
        {
 
            //      
            IEnvelope pEnv = (IEnvelope)e.newEnvelope;
 
            IGraphicsContainer pGra = axMapControl2.Map as IGraphicsContainer;
            IActiveView pAv = pGra as IActiveView;
            //    ，  axMapControl2        
            pGra.DeleteAllElements();
 
            IRectangleElement pRectangleEle = new RectangleElementClass();
            IElement pEle = pRectangleEle as IElement;
            pEle.Geometry = pEnv;
 
            //          
            IRgbColor pColor = new RgbColorClass();
            pColor.Red = 255;
            pColor.Green = 0;
            pColor.Blue = 0;
            pColor.Transparency = 255;
            //         
            ILineSymbol pOutline = new SimpleLineSymbolClass();
            pOutline.Width = 2;
            pOutline.Color = pColor;
 
            //      
            pColor = new RgbColorClass();
            pColor.Red = 255;
            pColor.Green = 0;
            pColor.Blue = 0;
            pColor.Transparency = 0;
            //         
            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);
        } 
 

3.상호작용 실현

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