1. Presented by : Olivia Lin

2. Outline Preparation works –What software do I need? Source of sample codes –Online source: Supergeo Developer Network (SGDN) Modify sample codes –Add a spatial query tool Unregister this application 2

3. Preparation works Developed by –Microsoft Visual Studio –Language : C #, C ++ –COM architecture SuperGIS Desktop 3

4. Source of Sample Code Supergeo Developer Network (SGDN)SGDN –http://sgdn.supergeotek.com/ 4

5. r 5

6. In SGDN, you’ll find more: 6

7. Get starting from SGDN 7

8. Example- Simple Map Information Sample This sample contains: Toolbar Combo box Drop-down menu Button 8

9. Example - Simple Map Information Sample 9

10. Simple Map Information Sample Step 1 Search and download the code from SGDN –R–Resource Center > Supergeo Samples –P–Products: SuperGIS Desktop, SuperGIS Extension –L–Languages & Platforms: C # –K–Key words : map information 10

11. Simple Map Information Sample Step 2 Set Start Action for application debugging –Select SuperGIS.exe for Start external program C:\Program Files\Supergeo\SuperGIS Desktop\SuperGIS.exe (32-bit) C:\Program Files (x86)\Supergeo\SuperGIS Desktop\SuperGIS.exe (64-bit) 11

12. Simple Map Information Sample Step 3 Start to debug this application In SuperGIS Desktop, you’ll see 12

13. Live demonstration 13

14. 14 Modify sample codes - Add a spatial query tool to toolbar

15. Drag a rectangle over features and then retrieve the attribute in a message window. 15

16. Important Factors in Designing Spatial Query Add a class to inherit ITool & ICommand Perform the main action of Spatial Query tool in SGCore.ITool.OnMouseDown 16

17. Add a class 17

18. Add a class 18

19. Add reference –SGDataAcess –SGMap –SuperGeo User Interface 1.0 Type Library –using System.Runtime.InteropServices; –using System.Drawing 19

20. Set the class to visible –[ComVisible(true)] query is a public class Inherit ITool, Icommand 20

21. Implement ITool Click on “SGCore” > Select “Implement interface SGCore.ITool” 21

22. Design this tool 22

23. SGCore.ITrackTarget Detect user’s action by SGCore.ITrackTarget TkTgt; The track can be a circle, a linestring, a polygon or a rectangle. 23

24. SGCore.ICommandTarget Set the button’s target map object SGCore.ICommandTarget pMapTgt; 24

25. Start to design public IntPtr Cursor //mouse cursor style { get { System.Windows.Forms.Cursor m_cursor; m_cursor = System.Windows.Forms.Cursors.Cross; return (IntPtr)m_cursor.Handle; } 25

26. public bool OnContextMenu(int x, int y) { return true; } public void OnDblClick() { throw new NotImplementedException(); } public void OnHook(SGCore.ITrackTarget Hook) { TkTgt = Hook; } 26

27. public void OnKeyDown(short KeyCode, short Shift) { throw new NotImplementedException(); } public void OnKeyUp(short KeyCode, short Shift) { throw new NotImplementedException(); } 27

28. public void OnMouseDown(short Button, short Shift, int x, int y) { // Edit the command here } public void OnMouseMove(short Button, short Shift, int x, int y) { throw new NotImplementedException(); } public void OnMouseUp(short Button, short Shift, int x, int y) { throw new NotImplementedException(); } 28

29. public void OnMouseDown(short Button, short Shift, int x, int y) { SGCore.ILayerGroup LG = ((SuperObjects2.IMapCtrl)pMapTgt).Map as SGCore.ILayerGroup; SGMap.FeatureLayer plyr; plyr = (SGMap.FeatureLayer)LG.Layer[0]; //the tool for drag a rectangle SGUserInterface.TrackFeedbackNewEnvelope tk = new SGUserInterface.TrackFeedbackNewEnvelope(); SGSFCOMS.IGeometry pGeo; pGeo = TkTgt.Track((SGCore.ITrackFeedback)tk); //built the spatial query with intersect relationship SGDataAccess.BinarySpatialOperator pSpQry = new SGDataAccess.BinarySpatialOperator(); pSpQry.OperatorType = SGDataAccess.SGOBinarySpatialOperatorType.SGO_BSOT_Intersects; pSpQry.Geometry = pGeo; SGCore.IFeatureCursor pCur; SGCore.IFeature pFea; pCur = ((SGCore.IFeatureLayer)plyr).FeatureClass.Search((SGCore.IFeatureFilter)pSpQry); pFea = pCur.NextFeature(); while (!(pFea == null)) { System.Windows.Forms.MessageBox.Show(pFea[3].ToString()); //Indicate the field to display pFea = pCur.NextFeature(); } 29

30. public void OnMouseDown(short Button, short Shift, int x, int y) { SGCore.ILayerGroup LG = ((SuperObjects2.IMapCtrl)pMapTgt).Map as SGCore.ILayerGroup; SGMap.FeatureLayer plyr; plyr = (SGMap.FeatureLayer)LG.Layer[0]; //the tool for drag a rectangle SGUserInterface.TrackFeedbackNewEnvelope tk = new SGUserInterface.TrackFeedbackNewEnvelope(); SGSFCOMS.IGeometry pGeo; pGeo = TkTgt.Track((SGCore.ITrackFeedback)tk); //built the spatial query with intersect relationship SGDataAccess.BinarySpatialOperator pSpQry = new SGDataAccess.BinarySpatialOperator(); pSpQry.OperatorType = SGDataAccess.SGOBinarySpatialOperatorType.SGO_BSOT_Intersects; pSpQry.Geometry = pGeo; SGCore.IFeatureCursor pCur; SGCore.IFeature pFea; pCur = ((SGCore.IFeatureLayer)plyr).FeatureClass.Search((SGCore.IFeatureFilter)pSpQry); pFea = pCur.NextFeature(); while (!(pFea == null)) { System.Windows.Forms.MessageBox.Show(pFea[3].ToString()); //Indicate the field to display pFea = pCur.NextFeature(); } Define the map and the target layer 30

31. public void OnMouseDown(short Button, short Shift, int x, int y) { SGCore.ILayerGroup LG = ((SuperObjects2.IMapCtrl)pMapTgt).Map as SGCore.ILayerGroup; SGMap.FeatureLayer plyr; plyr = (SGMap.FeatureLayer)LG.Layer[0]; //the tool for drag a rectangle SGUserInterface.TrackFeedbackNewEnvelope tk = new SGUserInterface.TrackFeedbackNewEnvelope(); SGSFCOMS.IGeometry pGeo; pGeo = TkTgt.Track((SGCore.ITrackFeedback)tk); //built the spatial query with intersect relationship SGDataAccess.BinarySpatialOperator pSpQry = new SGDataAccess.BinarySpatialOperator(); pSpQry.OperatorType = SGDataAccess.SGOBinarySpatialOperatorType.SGO_BSOT_Intersects; pSpQry.Geometry = pGeo; SGCore.IFeatureCursor pCur; SGCore.IFeature pFea; pCur = ((SGCore.IFeatureLayer)plyr).FeatureClass.Search((SGCore.IFeatureFilter)pSpQry); pFea = pCur.NextFeature(); while (!(pFea == null)) { System.Windows.Forms.MessageBox.Show(pFea[3].ToString()); //Indicate the field to display pFea = pCur.NextFeature(); } Decide the queried shape 31

32. public void OnMouseDown(short Button, short Shift, int x, int y) { SGCore.ILayerGroup LG = ((SuperObjects2.IMapCtrl)pMapTgt).Map as SGCore.ILayerGroup; SGMap.FeatureLayer plyr; plyr = (SGMap.FeatureLayer)LG.Layer[0]; //the tool for drag a rectangle SGUserInterface.TrackFeedbackNewEnvelope tk = new SGUserInterface.TrackFeedbackNewEnvelope(); SGSFCOMS.IGeometry pGeo; pGeo = TkTgt.Track((SGCore.ITrackFeedback)tk); //built the spatial query with intersect relationship SGDataAccess.BinarySpatialOperator pSpQry = new SGDataAccess.BinarySpatialOperator(); pSpQry.OperatorType = SGDataAccess.SGOBinarySpatialOperatorType.SGO_BSOT_Intersects; pSpQry.Geometry = pGeo; SGCore.IFeatureCursor pCur; SGCore.IFeature pFea; pCur = ((SGCore.IFeatureLayer)plyr).FeatureClass.Search((SGCore.IFeatureFilter)pSpQry); pFea = pCur.NextFeature(); while (!(pFea == null)) { System.Windows.Forms.MessageBox.Show(pFea[3].ToString()); //Indicate the field to display pFea = pCur.NextFeature(); } Set the query action pSpQry is a query object 32

33. public void OnMouseDown(short Button, short Shift, int x, int y) { SGCore.ILayerGroup LG = ((SuperObjects2.IMapCtrl)pMapTgt).Map as SGCore.ILayerGroup; SGMap.FeatureLayer plyr; plyr = (SGMap.FeatureLayer)LG.Layer[0]; //the tool for drag a rectangle SGUserInterface.TrackFeedbackNewEnvelope tk = new SGUserInterface.TrackFeedbackNewEnvelope(); SGSFCOMS.IGeometry pGeo; pGeo = TkTgt.Track((SGCore.ITrackFeedback)tk); //built the spatial query with intersect relationship SGDataAccess.BinarySpatialOperator pSpQry = new SGDataAccess.BinarySpatialOperator(); pSpQry.OperatorType = SGDataAccess.SGOBinarySpatialOperatorType.SGO_BSOT_Intersects; pSpQry.Geometry = pGeo; SGCore.IFeatureCursor pCur; SGCore.IFeature pFea; pCur = ((SGCore.IFeatureLayer)plyr).FeatureClass.Search((SGCore.IFeatureFilter)pSpQry); pFea = pCur.NextFeature(); while (!(pFea == null)) { System.Windows.Forms.MessageBox.Show(pFea[3].ToString()); //Indicate the field to display pFea = pCur.NextFeature(); } Execute Spatial Query 33

34. public void OnMouseDown(short Button, short Shift, int x, int y) { // Edit the command here } public void OnMouseMove(short Button, short Shift, int x, int y) { throw new NotImplementedException(); } public void OnMouseUp(short Button, short Shift, int x, int y) { throw new NotImplementedException(); } 34

35. public bool QueryDeactivate() { TkTgt = null; return true; } 35

36. Implement ICommand Click on “SGCore” > Select “Implement interface SGCore.ICommand” 36

37. Start to design public string Caption { get { return "Spatial Query"; } } public bool Checked { get { return (TkTgt != null); } } 37

38. public bool Enabled { get { return true; } } public string HelpFile { get { return "NO Help"; } } 38

39. public IntPtr Image { get { return m_Icon.Handle; } } public int HelpTopicID { get { return 0; } } public string Name { get { return "Spatial Query"; } } Declare Icon m_Icon = null; Declare Icon m_Icon = null; 39

40. public void OnCommand(SGCore.ICommandTarget Parent) { pMapTgt = Parent; // The button of the target map // Use pMapTgt (ICommandTarget) to catch Parent } public string ToolTip { get { return "Spatial Query"; } } 40

41. Add to the Toolbar //In SimpleMapInfoToolbar.cs, add query Query queryBtn = new Query(); m_Cmd.Add(queryBtn); 41

42. Run this project 42

43. 43 Live demonstration

44. Unregister this application In Windows Command Prompt, under C:\WINDOWS\Microsoft.NET\Framework\v2.0.5072 7\ –For C# > RegAsm.exe /u “ /.dll” –For C++ > Regsvr32 /u “ /.dll” 44

45. 45 Live demonstration

46. Supergeo Technologies Inc. www.supergeotek.com THANK YOU FOR JOINING THIS COURSE 46