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Standardized GIS using Open
Source SoftwareExperiences of Thailand
Dr.-Ing. Phisan SantitamnontSurvey Engineering Department
Faculty of Engineering
Chulalongkorn University
Bangkok Thailand
Email: [email protected]
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Contents
Open Source Software
Efforts at Chulalongkorn University
Conclusion and Outlook
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Open Source Software
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Benefits of Open Source Software
Cut down budget
Opportunity for technology exploration
On-the-job training and education
Prototyping and demo
Excellent tools for research and development
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Interesting Web Sites
www.fgdc.gov : isite
www.freegis.org : 158 entries
UMN/DNR MapServer :
mapserver.gis.umn.edu
Postgis http://postgis.refractions.net/
OGDI (Open Geographic Datastore Interface)
GeoServer: geoserver.sourceforge.net
Others: proj4, gml4j, gdal
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Interesting Projects
Minnesota MapServer
Package of cgi-based map server
Known of standard GIS data format
Developed by UMN, DNR Minnesota
WMS 1.0.X compliant.
PostGIS
OpenGIS SF specification
Using Postgres as DB Engine
Some advance indexing features
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Efforts in Thailand
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A Study of Government Data Infrastructure 2001-2002
Initiated by the National Information Technology Committee (NITC), Ministry of Science and Technology
study of data integrity in Thai government
4 Categories of Data: personal data,…. spatial data
For spatial data, study done by Chulalongkorn University
Final report is underway.
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Outcomes of GDI
Overview of european and north-american standard
Analysis of NSDI throughout the world
Overview of Thai administration
Seminars and Interview 200 departments and at 5 Ministry CIOs
Prototype Clearinghouse: Isite with gateway implementation
Web Map Server Interface Standard: Minnesota MapServer
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Prototyte: Clearinghouse
Base on FGDC: Isite package
Gateway also has been realized.
Two experimental node
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TMSE / Clearinghouse
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สืบคน้ดว้ยขอบเขตพิกดัทางภูมิศาสตร์
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สืบคน้ดว้ยตวัอกัษร
สืบคน้ดว้ยการระบุเวลา
ระบุฐานขอ้มูลท่ีตอ้งการสืบคน้
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สืบคน้ดว้ยขอบเขตพิกดัทางภูมิศาสตร์
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สืบคน้ดว้ยตวัอกัษร
สืบคน้ดว้ยการระบุเวลา
ระบุฐานขอ้มูลท่ีตอ้งการสืบคน้
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Standardization on Web Map Server Interface
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Minnesota MapServer
ก) ข) ค)
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Interfacing with Minnesota MapServer
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ระบุเคร่ืองแม่ข่าย 1
GetCapability
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GetMap
ระบุเคร่ืองแม่ข่าย 1 2 3
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GetFeatureInfo
2 3
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GetFeatureInfo
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Education and Research on OpenGIS
Thesis and projects
Web Map Server, Web Feature Server
based on MapServer and PostGIS
XML, GML, XSLT, SVG
OpenGIS-compliant WWW browser
Promotion and Training of OpenGIS
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GIS ในยคุ e-Governmentทุกหน่วยงานผลิตชั้นขอ้มูลท่ีรับผดิชอบ
ผูใ้ช้A
ผูใ้ช้ B
ผูผ้ลิต A,
IP=A.org
ผูผ้ลิต B,
IP=B.org
ผูผ้ลิต C,
IP=C.org
WMSI
WMSI
WMSI
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GIS ในยคุ e-Governmentผูใ้ชเ้รียกใชข้อ้มูลพร้อมกนัจากหลายผูผ้ลิตพร้อมกนั
ผูใ้ช้ผูผ้ลิต A,
IP=A.org
ผูผ้ลิต B,
IP=B.org
ผูผ้ลิต C,
IP=C.org
GIF
XML
ผูใ้ช้
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Upcoming Events
Open source GIS and GRASS users conference 2002, Trento, Italy, 11-13 September 2002, University of Trento http://www.ing.unitn.it/~grass
PNC Annual Conference and Joint Meetings 2002PNC/ECAI/ IPSJ-SIGCH/EBTI, 15th-23th September, Japan, http://pnc-ecai.oiu.ac.jp/index-e.html
International Symposium on GeoInformatics for Spatial Infrastructure Development in Earth and Allied Sciences, GISIDEAS'2002) Hanoi, Vietnam, 25-28 September 2002, http://gisws.media.osaka-cu.ac.jp/gisideas/
“Digital Asia” Project, under the Digital Asia Network (DAN) initiated by ACRORS/AIT , promoting on OpenGIS for spatial information sharing, 2002-2005, http://www.acrors.ait.ac.th/digital_asia/
Training Program on OpenGIS for Spatial Information Sharing held by GAC, during 12th-16th November 2002, Bangkok, http://www.gac.ait.ac.th/training/schedule.htm
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Conclusion
Open Source Software has open way for researcher to enable ‘standard’.
Thailand has ‘learnt by doing’ using OSS
Research and education for standardized GIS is going on.
Once technology is possessed and requirement had been ratified, then
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‘Standards are in Action!!!’