1 gvsig: Open Source for handling Geospatial Information Mario Carrera Rodríguez
2 Generalitat Valenciana (GV) is the government of the Valencian Community (Castellón, Valencia, Alicante) Conselleria de Infraestructuras y Transporte (CIT) or Regional Government of Infrastructures and Transport, is the maximum authority in the Generalitat Valenciana for Public Works, Transport, Architecture, Ports and Coasts, and Energy.
3 Project Origin The administrations need computer applications to develop their functions Office automation Databases Signing registration Management of files, etc.
4 Project Origin There are two options to obtain computer applications: Proprietary Software Open Source Software
5 Project Origin Proprietary Software (I) High cost of license and maintenance. Tendency to skimp on installations. Promotion of illegal software. License Annual maintenance Version updates
6 Project Origin Proprietary Software (II) Technological dependence of the provider. The provider choose the new functionalities and when they will be available.
7 Project Origin Proprietary Software (III) Bad use/quality relationship. You pay for the product. Bad use of the INVESTMENT.
8 Project Origin Open Source Software (I) There isn't a cost for the license. Installation in an unlimited number of computers.
9 Project Origin Open Source Software (II) Technological independence Freedom to give solutions to our problems Capacity to develop new functionalities
10 Project Origin Open Source Software (III) Implemented functionalities = required functionalities You pay for service Total use of the INVESTMENT
11 Project Origin Open Source Software: The freedoms freedoms Four freedoms of the Open Source Software: To run the program, for any purpose. run To study how the program has been built, and adapt it to your needs (access to the source code is a precondition for this). To redistribute copies so you can help your neighbor. redistribute To improve the program, and release your improvements (and modified versions in general) to the public. Objective: Maximize the rights of the client (who has the : product).
12 Project Origin Open Source Software: The licenses Software license = Legal instrument that governs the usage or redistribution of copyright protected software. It differentiates the Open Source Software from the other kinds of software. GNU/GPL License: It guarantees that the improvements : and redistributions will be always free.
13 Project Origin Why Open Source Software Why Open Source Software? Technological independence. Optimization of the investment. Quality industrial structure.
14 Project Origin gvpontis: migration of IT to free software solutions gvpontis Conselleria de Infraestructuras y Transporte Optimization of the I. S. Technological independence Migration to information systems under LINUX (end of 2002) Areas of action: Office Suites Operating systems and communications databases Corporate systems within Conselleria GIS y CAD Development of GIS client: gvsig Sustainable development
15 Project Origin GIS CAD area. Procedure. Needs analysis of GIS CAD users, by questionnaire and interviews Visualization Query Edicion Spatial analysis Topology Map preparation Printing Analysis of the GIS CAD software on the market Initial requirements analysis. ArcView ArcGIS Jump Grass AutoCAD MicroStation IntelliCAD
16 Project Origin GIS CAD area. Procedure. Anyone has the established quality criteria The own development is chosen If there isn't a solution: let's invent it. invent
17 Project Origin GIS CAD area. Procedure. Public Tender: Exp. 2003/01/0090 Desarrollo de aplicaciones SIG (Sistema de Información Geográfica) para la C.O.P.U.T. utilizando software libre. (Development of GIS application using free software) Tender required working prototypes in C++ and Java. Evaluation prototype: Java was selected.
18 Project Origin GIS CAD area. Procedure. Implementation of the edition functionalities of a CAD system. Public Tender: Exp. 2004/01/228 Servicios informáticos de incorporación de funcionalidades de geoprocesamientos, topología y CAD en el producto gvsig (Adding geoprocessing, topology and CAD in gvsig)
19 About gvsig Main characteristics Development language: Java (Multiplatform). Adheres to the guidelines of the European Union Inspire. Free license (GNU/GPL). Modular, scalable, powerful. Simple interface: user friendly. International (Spanish, Valencian, English, Basque, Gallego, French, Italian, Portuguese, German, Czech, Polish, Romanian, Russian, Greek and Mandarin. Serbian and Swahili will be available in the next version).
20 About gvsig Project horizons (I) 1. Initially designed to meet GIS needs of the Conselleria. It meets the majority of needs of the CIT users (including affiliated entities) 175 installations. 200 planned The training program has been started with courses (over 90 people)
21 About gvsig Project horizons (II) 1. Initially designed to meet GIS needs of the Conselleria. The 2nd Public Tender was awarded to meet the full of the actual needs of the CIT users Ports and Coasts Division: Coastal S.D.I. of the Comunitat Valenciana. Road Division Road Safety Service: Corporate GIS of roads
22 About gvsig Project horizons (III) 2. Offer the Project to the rest of the Consellerias of the Generalitat.
23 About gvsig Project horizons (IV) 3. Offer the Project to the national and international community of GIS users. Established collaborations Ayto. Valencia Laboratorio Nacional de Geomática C. Medio Ambiente (Castilla La Universidad de Rennes (Francia) Universidad de Rennes (Francia) Mancha) Universidad de Laussanne (Suiza) Instituto Desarrollo Regional CLM Joint Research Center (Milan Italia) C. Cultura (Junta de Extremadura) ONU Conf. Hidrográfica del Guadalquivir Hidroven (Aguas de Venezuela) Ciudades Digitales Ministerio de Fomento LatinGeo (UPM) Instituto Geográfico Nacional
24 About gvsig Global aim Give solutions to all needs related to the geographic information management based on the integration of free technologies. technologies
25 SEXTANTE WEB SERVICES PUBLISHING gvsig MOBILE 3D NETWORKS RASTER Structure and main characteristics Reprojections Edition Geoprocessing Spatial Database Symbology Labelling gvsig: GIS SDI Client Web Services (SDI) Topology
26 Structure and main characteristics gvsig, Integrated managment: GIS client Tool to manage geographic information, mapping edition, geoprocessing...
27 Structure and main characteristics gvsig, Integrated managment: SDI Client Display and query services (WMS, WCS and WFS servers), searching services (Catalogue client) and location services (Gazetteer client). location
28 Structure and main characteristics gvsig, Integrated managment: Network analysis and new features Optimal path calculation, topology, more geoprocessing, advanced symbology...
29 Structure and main characteristics gvsig, Integrated managment: Raster analysis Georeferencing, Histogram view... Collaboration with SEXTANTE project
30 Structure and main characteristics gvsig, Integrated managment: 3D gvsig 3D: Access to 3D characteristics
31 Structure and main characteristics gvsig, Integrated managment: Mobile devices Integration of gvsig into mobile devices: telephony, PDA...
32 Structure and main characteristics gvsig, Integrated managment: Future projects Geostatistics gvsig 4D (temporal GIS) Connection with sensors Road map: id=1814&l=2 gvsig is a path that we can build together
33 gvsig project Dimension of the project Details of the project Installations in the Generalitat: (over 400) Mailing lists: Users list: 1218 Developers list: 604 International list: 507 Italian list: 154 Known countries with registered users: 42 Known countries where gvsig has been downloaded: 59
34 gvsig project gvsig Conference 4th gvsig Conference 3rd 5th decembre 2008 More than 650 attendance 5th gvsig Conference: End of 2009
35 gvsig project Web Page of the project Downloads of gvsig Desktop and gvsig Mobile Courses and tutorials Reports Lists of distribution Road map
36 gvsig project Towards an open organization Put the project in the hands of the community What tools and actions are we taking for ensuring project quality?
37 gvsig project Towards an open organization User & technical documentation available Plugin repository for the community All the builds of the versions in development available
38 gvsig project Towards an open organization On line L10N tool: an open gate for new communities of users
39 gvsig project Towards an open organization Mailing lists for the community
40 gvsig project Towards an open organization Open subversion repository
41 gvsig project Towards an open organization Open FTP repository for builds, and other stuff ftp://gvsig.org
42 Spatial Data Infrastructures Actual situation Old model (corporate GIS) Old model A lot of map servers. Every server is optimized for its users using its software... at the expense of possible users with another software, another brand of GIS, another formats of data. Creation of multiuser GIS information islands.
43 Spatial Data Infrastructures
44 Spatial Data Infrastructures New model Spatial Data Infrastructures (distributed GIS): Spatial Data Infrastructures Objective: Making easy the access to the G. I. The system is the network (internet/intranet). Communication through standars (web services). Extended client server model. Decentralized network of servers. Evolution: Evolution Desktop GIS client > Desktop GIS SDI client
45 Spatial Data Infrastructures SDI projects GSDI: Global Spatial Data Infrastructure. GSDI Promote the international collaboration to create SDI Antecedents: Clinton Clinton Order (EEUU, 1994) Order Building of a National Spatial Data Infrastructures (NSDI) European Union: INSPIRE (2004) INSPIRE INfrastructure for SPatial InfoRmation in Europe. Laws to guide the creation of SDI for every country.
46 SDI Arquitecture (with gvsig as a client) User applications Access to transformed data, pictures, maps, reports, multi media content Metadata search and retrieval for data and services Catalogs Clients gvsig Service chaining: search, display, access, e commerce,. Middleware Geo processing Direct and catalog Servicesdata Metadata update access Other data Content Repositories e.g., administrative, statistical, env. reporting Coverages Features Distributed Geographic reference data Servers
47 SDI components Data: Data: reference system, transport network, pollution, vegetation, traffic, etc. Metadata: datas that describe another datas. Services: offer a group of funcionalities that are useful and interesting for a community of users.
48 SDI services Services The user isn't interested on the download of the data, but obtaining the needed answers directly, that are offered by a service. The SDI services offer functionalities accessible on line through a simple navigator or browser: Web Map Service (WMS) Web Feature Service (WFS) Web Coverage Service (WCS) Nomenclator Service (Gazetteer) Catalog Service (CSW) Catalog Service (CSW)
49 Open Geospatial Consortium Protocols (OGC): Visualization and query of G.I.: Web Map Service (WMS) Advanced access to raster data: Web Coverage Service (WCS) Advanced access to vectorial data: Web Feature Service (WFS) Bases de Datos Geoespaciales (JDBC) Access to metadata catalogs: Web Catalog Service (WCatS) Localization by place name: Nomenclator Service
50 SDI services WFS WCS WMS Terrain server
51 SDI services Outline
52 SDI services Visualization and query of G.I. Web Map Service (WMS) Simple and fast visualization of vectorial and raster data. Allows to handle several layers from one or more servers. Allows transparency (by the administrator of the server). Allows simple information. Allows legend set up (using SLD => Styled Layer Descriptor) (by the administrator of the server).
53 SDI services WMS (Web Map Service)
54 SDI services WMS (Web Map Service)
55 SDI services Advanced access to raster data Web Coverage Service (WCS) Full access to attributes of each pixel. Work with data as it were local. Spatial Analysis. Etc.
56 SDI services WCS (Web Coverage Service)
57 SDI services Advanced access to vectorial data Web Feature Service (WFS) Geoespatial Database (JDBC) Full access to attributes. Use of same legend as for local layers. Work with data as it were local. Advanced queries. Spatial Analysis. Etc.
58 SDI services WFS (Web Feature Service)
59 SDI services Geoespatial Database (JDBC)
60 SDI services Access to metadata catalogs Web Catalog Service (WCatS) Fundamental part of SDI. Allows discovering G.I. Query by Theme, scale, location, etc. You get layers list found by catalog.
61 SDI services Web Catalog Service
62 SDI services Localization by place name: Nomenclator Service Georeferenced place names list. Place names index in an atlas: Place name Page Grid Nomenclator: Place name Geographic coordinates
63 SDI services Localization by place name
64 Conclusions Great power and versatility of the web services. Great added value given by a Desktop GIS client like gvsig. Easy extension and improvement of the application. The community is growing.
65 grazie per l'attenzione Mario Carrera Rodríguez
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