1. ISIG/WEB A Web-based Tool for Viewing and Editing Maps Month/2004 Gustavo Mandolesi – Software Engineer

2. 2 Objective Present an overview of ISIG/WEB by highlighting its main functions and benefits within the context of web-based GIS applications.

3. 3 Contents n Introduction n System components n Architecture n Demonstration n Conclusion

4. 4 Introduction

5. 5 What is ISIG/WEB ? n It´s a software prototype for editing maps on the web n Result of a research project named ISIG “Inovação em Sistemas de Informações Geográficas” GIS Innovation n Sponsored by FUNTTEL Fundo para desenvolvimento Tecnológico das Telecomunicações Fund for the Technological Development of Telecommunications

6. 6 On the Web... n Main features Map visualization Edition of georeferenced objects on maps Edition of map style (symbology) n All over HTTP !

7. 7 Based on Open Standards n Open Geospatial Consortium (OGC) standards WMS – Web Map Service WFS – Web Feature Service SLD – Styled Layer Descriptor GML – Geographic Markup Language n World Wide Web Consortium (W3C) standards SVG – Scalable Vector Graphics n Java / J2EE n JavaScript

8. 8 System Components

9. 9 User Interface Modules n Map Viewer/Editor Visualization of SVG maps Thin client Web application (browser) n Style Editor SLD graphical or textual edition Fat client Desktop application

10. 10 Service Modules n OGC Servers No interface, services only. Web Map Server (WMS) Web Feature Server (WFS) n XSLT Transformer GML + SLD  SVG n Geographic Database Server SERVICES

11. 11 Who´s who n Map Viewer/Editor Internet Explorer 5.5 Adobe SVG Viewer 3.0 (freeware plugin) Javascript Server-side components (Servlet´s and JSP´s) n Style Editor Java Swing (multiplatform) Java Web Start technology  downloaded via browser Uses Apache Batik SVG Toolkit to build map symbols

12. 12 Who´s who n Web Map Server deegree WMS 1.1.2 Official reference implementation for the OGC WMS 1.1.1 specification Java / J2EE n Web Feature Server deegree WFS 1.2.3 Based on OGC WFS 1.0.0 Java / J2EE Oracle WEB

13. 13 Who´s who n XSLT Transformer Xalan (Java) 2.6.0 Implemented as a HTTP service (Java Servlet) n Geographic Database Server Oracle Spatial 9.2 Oracle WEB

14. 14 Architecture

15. 15 Architecture OracleSpatial deegreeWFS deegreeWMS XSLT Transformer (GML + SLD = SVG) WFS transactions SVG maps GML features Map Viewer/EditorStyle Editor SLD-related services

16. 16 Architecture n Distributed n Service-oriented WEB WMS WFS Web application server RDBMS HTTP

17. 17 Architecture n Distributed n Service-oriented WEB WMS WFS Web application server RDBMS HTTP

18. 18 Demonstration

19. 19 Conclusion CPqD ISIG/WEB

20. 20 Conclusion n It is possible to edit maps on the web, using open standards n It is possible to build a reliable internet GIS system totally Java / J2EE based n SVG can be used sucessfully for rendering maps with great quality

21. 21 Conclusion n Future work: Adaptation of JavaScript code in order to use other browsers, i.e. Mozilla Firefox 1.0 (Adobe SVG plugin) Migrate presentation code in order to use a browser with native support of SVG. Currently, Mozilla SVG (beta) Use other geographic databases Data adaptation to use PostgreSQL / PostGIS Tests to improve performance of XML data traffic

22. 22 Questions

23. THANK YOU! Gustavo Mandolesi gustavom@cpqd.com.br Phone: +55 (19) 3705.4588 CPqD – Centro de Pesquisa e Desenvolvimento em Telecomunicações Rod. Campinas–Mogi-Mirim, km 118,5 – SP340 13086-902 – Campinas – SP BRASIL www.cpqd.com.br CPqD Technologies & Systems, Inc. 101 NE Third Ave – Suite 1500 Fort Lauderdale, FL 33301, USA www.cpqdusa.com