1. Open Source WebMapping

2. Architecture

3. Architecture

4. Architecture

5. Architecture
● Compliance with Standards
● OSGeo Certified/Incubation
● Available resources
– Documentation
– Examples
– Articles
– Use cases
● Community activity
● Personal Preferences

6. Architecture

7. Architecture

8. OpenLayers
● Javascript API
● Supports OGC Standards
● OSGeo Project
● Big user and developer community

9. OpenLayers
● Lots of formats (WMS, WFS, GML, SLD, …)
● Several map controls (Zoom, pan, TOC, Scale, …)
● Spatial editing
●
Interaction with 3rd party services (OSM, Google,
Yahoo, Bing Maps, Geonames, …)
● Easy to Learn
● Nice and useful example galley
USE THE SOURCE

10. OpenLayers
● MAP

11. OpenLayers
● LAYERS

12. OpenLayers
● LAYERS

13. OpenLayers
● CONTROLS

14. OpenLayers
● CONTROLS

15. ExtJS
● Javascript API
● Dual-license
● Developed and Supported by Sencha
● Big user community
● For building Rich Web Applications
● Rich UI interfaces

16. ExtJS
● Lots of fields: numeric, text, date, checbox &
groups, combobox, fielsets, …
● Forms and Tables
● Windows, Panels, Tabs and Trees
● Animations
● Dynamic Charting
● Supports XML, JSON

17. ExtJS
● FORMS & FIELDS

18. ExtJS
● WINDOWS, TABS, TABLES, TREE

19. GeoExt
● OpenLayers is good for maps, though it has
few and limited UI components
● ExtJS has lots of UI components and
functionality but … mapping is lacking
● GeoExt brings both together to allow easy
building of Spatial RIA

20. GeoExt
● Map in windows, panels and tabs
● TOC in a tree
● Map controls in toolbars
● Feature information in forms, tables
● Legend Panel
● Scale Combobox

21. GeoExt
● MAP IN WINDOW

22. GeoExt
● FEATURES AND TABLES

23. GeoExt
● SCALE COMBOBOX AND LAYER TREE

24. Spatial RIA

25. Spatial RIA

26. Conclusions
● Big diversity of Open Source software
● Big modularity is an healthy advantage
● Powerful frameworks available
● It's fun and easy to learn
● The big question is: CAN YOU DO
IT???