ArcEngine中鹰眼实现

淩亂°似流年 2021-09-16 12:26 443阅读 0赞

private void axMapControl1_OnMapReplaced_1(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnMapReplacedEvent e)
            {
                this.axMapControl2.Map = new MapClass();
                for (int i = 1; i <= this.axMapControl1.LayerCount; i++)// 添加主地图控件中的所有图层到鹰眼控件中
                {                this.axMapControl2.AddLayer(this.axMapControl1.get_Layer(this.axMapControl1.LayerCount - i));
                }           
                this.axMapControl2.Extent = this.axMapControl1.FullExtent;// 设置 MapControl 显示范围至数据的全局范围         
                this.axMapControl2.Refresh();// 刷新鹰眼控件地图
            }
            private void axMapControl1_OnExtentUpdated_1(object sender, ESRI.ArcGIS.Controls.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 pRectangleEle = new RectangleElementClass();
                IElement pEle = pRectangleEle as IElement;
                pEle.Geometry = pEnv;
                // 设置鹰眼图中的红线框
                IRgbColor pColor = new RgbColorClass();
                pColor.Red = 255;
                pColor.Green = 0;
                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);
                // 刷新
                pAv.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
            }
            private void axMapControl2_OnMouseDown_1(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnMouseDownEvent e)
            {
                if (this.axMapControl2.Map.LayerCount != 0)
                {
                    // 按下鼠标左键移动矩形框
                    if (e.button == 1)
                    {
                        IPoint pPoint = new PointClass();
                        pPoint.PutCoords(e.mapX, e.mapY);
                        IEnvelope pEnvelope = this.axMapControl1.Extent;
                        pEnvelope.CenterAt(pPoint);
                        this.axMapControl1.Extent = pEnvelope;  
                     this.axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
                    }
                    // 按下鼠标右键绘制矩形框
                    else if (e.button == 2)
                    {
                        IEnvelope pEnvelop = this.axMapControl2.TrackRectangle();
                        this.axMapControl1.Extent = pEnvelop;
    
    this.axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
                    }
                }
            }
            private void axMapControl2_OnMouseMove_1(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnMouseMoveEvent e)
            {
                if (e.button != 1) return;
                IPoint pPoint = new PointClass();
                pPoint.PutCoords(e.mapX, e.mapY);
                this.axMapControl1.CenterAt(pPoint);
              this.axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
            }