C#制作Arcgis Engine鹰眼全过程

1. axMapControl1是主控件，axMapControl2是鹰眼控件

1.鹰眼地图资源载入 3. private void axMapControl1_OnMapReplaced(object sender, IMapControlEvents2_OnMapReplacedEvent e) 4. { 5. //当主地图显示控件的地图更换时，鹰眼中的地图也跟随更换 6. axMapControl2.LoadMxFile(axMapControl1.DocumentFilename); 7. axMapControl2.Extent = axMapControl2.FullExtent; 8. } 9. 2.绘制鹰眼矩形框 10.private void axMapControl1_OnExtentUpdated(object sender, IMapControlEvents2_OnExtentUpdatedEvent e) 11. { 12. // 得到新范围 13. IEnvelope pEnv = (IEnvelope)e.newEnvelope; 14. IGraphicsContainer pGra = axMapControl2.Map as IGraphicsContainer; 15. IActiveView pAv = pGra as IActiveView; 16. //在绘制前，清除axMapControl2中的任何图形元素 17. pGra.DeleteAllElements(); 18. IRectangleElement pRectangleEle = new RectangleElementClass(); 19. IElement pEle = pRectangleEle as IElement; 20. pEle.Geometry = pEnv; 21. //设置鹰眼图中的红线框 22. IRgbColor pColor = new RgbColorClass(); 23. pColor.Red = 255; 24. pColor.Green = 0; 25. pColor.Blue = 0; 26. pColor.Transparency = 255; 27. //产生一个线符号对象 28. ILineSymbol pOutline = new SimpleLineSymbolClass(); 29. pOutline.Width = 2; 30. pOutline.Color = pColor; 31. //设置颜色属性 32. pColor = new RgbColorClass(); 33. pColor.Red = 255; 34. pColor.Green = 0; 35. pColor.Blue = 0; 36. pColor.Transparency = 0; 37. //设置填充符号的属性 38. IFillSymbol pFillSymbol = new SimpleFillSymbolClass(); 39. pFillSymbol.Color = pColor; 40. pFillSymbol.Outline = pOutline; 41. IFillShapeElement pFillShapeEle = pEle as IFillShapeElement; 42. pFillShapeEle.Symbol = pFillSymbol; 43. pGra.AddElement((IElement)pFillShapeEle, 0); 44. pAv.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); 45. } 46.3. 实现互动 47. private void axMapControl2_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e) 48. { 49. IPoint pPt=new PointClass (); 50. pPt.PutCoords (e.mapX ,e.mapY ); 51. //改变主控件的视图范围 52. axMapControl1 .CenterAt (pPt ); 53. }