Transcript TerraLib: Open Source Tools for GIS Application Development

6th GEO Capacity Building Committee Meeting
TASK REPORT
CB-07 01e
Open Source Software
João Soares
[email protected]
INPE - BRAZIL
Background and Objetives
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Encourage the use of OSS across EO value chain
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Inventory of OS solutions within GEO
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Post the inventory into the Web Portal
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Encourage development of OSS solutions by building
on existing efforts
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TerraLib and TerraView as starting GIS platforms
(integrated Earth Observation and GIS data)
Empowering people with geo technologies
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The white-box model:
results = people + methods + software
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People
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Methods
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Learning by doing x learning by using
Translate concepts into working procedures
Software
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Provide adequate support for data analysis and integration
Why TerraLib and TerraView?
Technology has changed
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Previous generation of GIS
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Built on proprietary architectures
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Interface+function+database = monolithic system
New generation of object-relational DBMS
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All data will be handled by a DBMS
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Standardized access methods (e.g. OpenGIS)
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Users can develop customized applications
Free and Open Source Software for Geo
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FOSS has established itself as a viable alternative to
proprietary software
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Four fundamental freedoms: run, study, redistribute and improve
the software
Benefits: cost reduction, community, innovation, freedom,
enjoyment,...
FOSS for Geo include:
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Web mapping
Desktop applications
Geospatial libraries
Interoperability
Different GIS architectures are needed
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Desktop GIS
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Single-user
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Emphasis in friendly interfaces and analysis functions
Distributed GIS
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Multiple users
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Data sharing
Emphasis in access and simultaneous control
Web services
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Using the Internet to disseminate data and services
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Emphasis in usability and flexibility
TerraView
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GIS that allows the
construction,
visualization and
analysis of a
TerraLib database
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FOSS – LGPL
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It can be customized
by Plugins
TerraLib
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A library to develop geographical applications
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Open Source Policy – LGPL
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Open Protocols
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Use DBMS
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Allows users to customize a solution
Applications built on TerraLib
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Cadastral Mapping
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Public Health
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Spatial statistical tools for epidemiology and health services
Social Exclusion
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Indicators of social exclusion in inner-city areas
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Tools to help decision makers to create public policies for social
development
Land-use change modeling
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Improving urban management of large Brazilian cities
Spatio-temporal models of deforestation in the Brazilian Amazon
Emergency action planning
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Oil refineries and pipelines (Petrobras)
Building partnership and networks for operating under an agreed
agenda
Milestones achieved to date
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TerraLib programming tutorial in English - guides the user through
general concepts of GeoInformation, spatial databases and the
particularities of TerraLib.
First experience of an e-learning course in TerraLib Programming
carried on in the context of eduGI.LA project (Network for GI science
education – Latin-America, funded by the European Commission
under the ALFA program).
Started the inventory of OS in GIS
Establishement of the Open Source Geospatial Foundation (INPE
one of the sponsors).
TerraView tutorial in English for basic use, providing a sample data
set.
Marlin visualization tools for CBERS users
Expected Milestones for 2008
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Identify OSS solutions for use in GEO
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Building on existing inventories
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Develop TerraView and TerraLib training material,
courses, tutorials and documentation for both
programmers and end-users available (in English) and
develop specialized training material for e-learning.
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TerraView Site in English
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Lauching of the TerraView and TerraLib version 3.2.0
Extent of participation
Recommendations for additional participants
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Who could contribute to this task?
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ITC
 Very many others...
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Other issues:
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Coordination points with other GEO work plan tasks need to be improved
Potential risks that may impede completion of task – inventory restricted to
few aspects of EO
Gaps that have been identified that need to be addressed independently –
bring other dimensions of OSS
Potential Contributions to the CB portal /GEO Portal – Links of OS with
description, education tools from OS community members
Expected products – OSS made available with e-learning and training
materials
Expected date of completion of task – go along GEO and GEOSS
Expectations of task lead from CBC – increase participation
Final remarks
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Combining open source software with the technical
workforce available in developing countries can enable
technology transfer
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TerraLib and TerraView have INPE’s support for a long
term maintenance policy
PROARCO
DETER
PRODES Project
Recent images
Previous year
deforestation
Reception station
Detection of new deforestation
polygons
Management rooms in serveral
institutions
DBMS
Internet
Produt
os
www.obt.inpe.br/deter
Spatial analysis
Locations
Low
Census Sectors
Census districts
High
Slide:Marcelo Nery
SAUDAVEL: Epidemiologic Surveillance And Alert
A Surveillance System for alert, control and intervention for Dengue Fever based in
Eggtraps for Aedes spp
Santos: urban planning and tax enforcement
Slide: FUNCATE
GeoSan by Nexus Inc.
GIS for the
management of
city’s sanytary
networks: water,
sewage...
GIS for agriculture by ENALTA Inc.
TerraLib and TerraView community