Create Your Own Application in Super GIS Desktop

Create Your Own Application in Super. GIS Desktop Presented by : Olivia Lin

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

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

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

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In SGDN, you’ll find more: 6

GET STARTING FROM SGDN 7

Example. Simple Map Information Sample • This sample contains: üToolbar üCombo box ü Drop-down menu ü Button 8

Example Simple Map Information Sample 9

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

Simple Map Information Sample • Step 2 Set Start Action for application debugging – Select Super. GIS. exe for Start external program • C: Program FilesSupergeoSuper. GIS DesktopSuper. GIS. exe (32 -bit) • C: Program Files (x 86)SupergeoSuper. GIS DesktopSuper. GIS. exe (64 -bit) 11

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

Live demonstration 13

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

Modify sample codes - Add a spatial query tool to toolbar • Drag a rectangle over features and then retrieve the attribute in a message window. 15

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

Add a class 17

Add a class 18

Add reference • Add reference – SGData. Acess – SGMap – Super. Geo User Interface 1. 0 Type Library – using System. Runtime. Interop. Services; – using System. Drawing 19

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

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

Design this tool 22

SGCore. ITrack. Target • Detect user’s action by SGCore. ITrack. Target Tk. Tgt; • The track can be a circle, a linestring, a polygon or a rectangle. 23

SGCore. ICommand. Target • Set the button’s target map object • SGCore. ICommand. Target p. Map. Tgt; 24

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

• public bool On. Context. Menu(int x, int y) • { • return true; • } • public void On. Dbl. Click() • { • throw new Not. Implemented. Exception(); • } • • public void On. Hook(SGCore. ITrack. Target Hook) { Tk. Tgt = Hook; } 26

• public void On. Key. Down(short Key. Code, short Shift) • { • throw new Not. Implemented. Exception(); • } • public void On. Key. Up(short Key. Code, short Shift) • { • throw new Not. Implemented. Exception(); • } 27

• public void On. Mouse. Down(short Button, short Shift, int x, int y) • { • // Edit the command here • } • public void On. Mouse. Move(short Button, short Shift, int x, int y) • { • throw new Not. Implemented. Exception(); • } • public void On. Mouse. Up(short Button, short Shift, int x, int y) • { • throw new Not. Implemented. Exception(); 28 • }

public void On. Mouse. Down(short Button, short Shift, int x, int y) { SGCore. ILayer. Group LG = ((Super. Objects 2. IMap. Ctrl)p. Map. Tgt). Map as SGCore. ILayer. Group; SGMap. Feature. Layer plyr; plyr = (SGMap. Feature. Layer)LG. Layer[0]; //the tool for drag a rectangle SGUser. Interface. Track. Feedback. New. Envelope tk = new SGUser. Interface. Track. Feedback. New. Envelope(); SGSFCOMS. IGeometry p. Geo; p. Geo = Tk. Tgt. Track((SGCore. ITrack. Feedback)tk); //built the spatial query with intersect relationship SGData. Access. Binary. Spatial. Operator p. Sp. Qry = new SGData. Access. Binary. Spatial. Operator(); p. Sp. Qry. Operator. Type = SGData. Access. SGOBinary. Spatial. Operator. Type. SGO_BSOT_Intersects; p. Sp. Qry. Geometry = p. Geo; SGCore. IFeature. Cursor p. Cur; SGCore. IFeature p. Fea; p. Cur = ((SGCore. IFeature. Layer)plyr). Feature. Class. Search((SGCore. IFeature. Filter)p. Sp. Qry); p. Fea = p. Cur. Next. Feature(); while (!(p. Fea == null)) { System. Windows. Forms. Message. Box. Show(p. Fea[3]. To. String()); //Indicate the field to display p. Fea = p. Cur. Next. Feature(); } } 29

public void On. Mouse. Down(short Button, short Shift, int x, int y) { SGCore. ILayer. Group LG = ((Super. Objects 2. IMap. Ctrl)p. Map. Tgt). Map as SGCore. ILayer. Group; SGMap. Feature. Layer plyr; plyr = (SGMap. Feature. Layer)LG. Layer[0]; Define the map and the target layer //the tool for drag a rectangle SGUser. Interface. Track. Feedback. New. Envelope tk = new SGUser. Interface. Track. Feedback. New. Envelope(); SGSFCOMS. IGeometry p. Geo; p. Geo = Tk. Tgt. Track((SGCore. ITrack. Feedback)tk); //built the spatial query with intersect relationship SGData. Access. Binary. Spatial. Operator p. Sp. Qry = new SGData. Access. Binary. Spatial. Operator(); p. Sp. Qry. Operator. Type = SGData. Access. SGOBinary. Spatial. Operator. Type. SGO_BSOT_Intersects; p. Sp. Qry. Geometry = p. Geo; SGCore. IFeature. Cursor p. Cur; SGCore. IFeature p. Fea; p. Cur = ((SGCore. IFeature. Layer)plyr). Feature. Class. Search((SGCore. IFeature. Filter)p. Sp. Qry); p. Fea = p. Cur. Next. Feature(); while (!(p. Fea == null)) { System. Windows. Forms. Message. Box. Show(p. Fea[3]. To. String()); //Indicate the field to display p. Fea = p. Cur. Next. Feature(); } } 30

public void On. Mouse. Down(short Button, short Shift, int x, int y) { SGCore. ILayer. Group LG = ((Super. Objects 2. IMap. Ctrl)p. Map. Tgt). Map as SGCore. ILayer. Group; SGMap. Feature. Layer plyr; plyr = (SGMap. Feature. Layer)LG. Layer[0]; //the tool for drag a rectangle SGUser. Interface. Track. Feedback. New. Envelope tk = new SGUser. Interface. Track. Feedback. New. Envelope(); SGSFCOMS. IGeometry p. Geo; Decide the queried shape p. Geo = Tk. Tgt. Track((SGCore. ITrack. Feedback)tk); //built the spatial query with intersect relationship SGData. Access. Binary. Spatial. Operator p. Sp. Qry = new SGData. Access. Binary. Spatial. Operator(); p. Sp. Qry. Operator. Type = SGData. Access. SGOBinary. Spatial. Operator. Type. SGO_BSOT_Intersects; p. Sp. Qry. Geometry = p. Geo; SGCore. IFeature. Cursor p. Cur; SGCore. IFeature p. Fea; p. Cur = ((SGCore. IFeature. Layer)plyr). Feature. Class. Search((SGCore. IFeature. Filter)p. Sp. Qry); p. Fea = p. Cur. Next. Feature(); while (!(p. Fea == null)) { System. Windows. Forms. Message. Box. Show(p. Fea[3]. To. String()); //Indicate the field to display p. Fea = p. Cur. Next. Feature(); } } 31

public void On. Mouse. Down(short Button, short Shift, int x, int y) { SGCore. ILayer. Group LG = ((Super. Objects 2. IMap. Ctrl)p. Map. Tgt). Map as SGCore. ILayer. Group; SGMap. Feature. Layer plyr; plyr = (SGMap. Feature. Layer)LG. Layer[0]; //the tool for drag a rectangle SGUser. Interface. Track. Feedback. New. Envelope tk = new SGUser. Interface. Track. Feedback. New. Envelope(); SGSFCOMS. IGeometry p. Geo; p. Sp. Qry is a query object p. Geo = Tk. Tgt. Track((SGCore. ITrack. Feedback)tk); //built the spatial query with intersect relationship SGData. Access. Binary. Spatial. Operator p. Sp. Qry = new SGData. Access. Binary. Spatial. Operator(); p. Sp. Qry. Operator. Type = SGData. Access. SGOBinary. Spatial. Operator. Type. SGO_BSOT_Intersects; p. Sp. Qry. Geometry = p. Geo; SGCore. IFeature. Cursor p. Cur; SGCore. IFeature p. Fea; p. Cur = ((SGCore. IFeature. Layer)plyr). Feature. Class. Search((SGCore. IFeature. Filter)p. Sp. Qry); p. Fea = p. Cur. Next. Feature(); Set the query action while (!(p. Fea == null)) { System. Windows. Forms. Message. Box. Show(p. Fea[3]. To. String()); //Indicate the field to display p. Fea = p. Cur. Next. Feature(); } } 32

public void On. Mouse. Down(short Button, short Shift, int x, int y) { SGCore. ILayer. Group LG = ((Super. Objects 2. IMap. Ctrl)p. Map. Tgt). Map as SGCore. ILayer. Group; SGMap. Feature. Layer plyr; plyr = (SGMap. Feature. Layer)LG. Layer[0]; //the tool for drag a rectangle SGUser. Interface. Track. Feedback. New. Envelope tk = new SGUser. Interface. Track. Feedback. New. Envelope(); SGSFCOMS. IGeometry p. Geo; p. Geo = Tk. Tgt. Track((SGCore. ITrack. Feedback)tk); //built the spatial query with intersect relationship SGData. Access. Binary. Spatial. Operator p. Sp. Qry = new SGData. Access. Binary. Spatial. Operator(); p. Sp. Qry. Operator. Type = SGData. Access. SGOBinary. Spatial. Operator. Type. SGO_BSOT_Intersects; p. Sp. Qry. Geometry = p. Geo; SGCore. IFeature. Cursor p. Cur; SGCore. IFeature p. Fea; p. Cur = ((SGCore. IFeature. Layer)plyr). Feature. Class. Search((SGCore. IFeature. Filter)p. Sp. Qry); p. Fea = p. Cur. Next. Feature(); while (!(p. Fea == null)) { System. Windows. Forms. Message. Box. Show(p. Fea[3]. To. String()); //Indicate the field to display p. Fea = p. Cur. Next. Feature(); Execute Spatial Query } } 33

• public void On. Mouse. Down(short Button, short Shift, int x, int y) • { • // Edit the command here • } • public void On. Mouse. Move(short Button, short Shift, int x, int y) • { • throw new Not. Implemented. Exception(); • } • public void On. Mouse. Up(short Button, short Shift, int x, int y) • { • throw new Not. Implemented. Exception(); 34 • }

• • • public bool Query. Deactivate() { Tk. Tgt = null; return true; } 35

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

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

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

• • public Int. Ptr Image { get { return m_Icon. Handle; } } Declare Icon m_Icon = null; • public int Help. Topic. ID • { • get { return 0; } • public string Name • { • get { return "Spatial Query"; } • } 39

• public void On. Command(SGCore. ICommand. Target Parent) • { • p. Map. Tgt = Parent; • // The button of the target map • // Use p. Map. Tgt (ICommand. Target) to catch Parent • } • • public string Tool. Tip { get { return "Spatial Query"; } } 40

Add to the Toolbar • //In Simple. Map. Info. Toolbar. cs, add query • Query query. Btn = new Query(); • m_Cmd. Add(query. Btn); 41

Run this project 42

Live demonstration 43

Unregister this application • In Windows Command Prompt, under C: WINDOWSMicrosoft. NETFrameworkv 2. 0. 5072 7 – For C# > Reg. Asm. exe /u “<path>/<filename>. dll” – For C++ > Regsvr 32 /u “<path>/<filename>. dll” 44

Live demonstration 45

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