geo-spatial digital archive project (gdap) gdap.crma.ac.th feb 15, 2012 col. supachai srihom...
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Geo-Spatial Digital Geo-Spatial Digital Archive ProjectArchive Project (GDAP)(GDAP)
gdap.crma.ac.th
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Feb 15, 2012Col. Supachai Srihom
Chulachomklao Royal Military AcademyNakhon Nayok, Thailand
Outline
• GDAP Overview– Objective, Motivation, Problems, Data
format– GDAP system design– GDAP web portal
• GDAP Implementation– Focus area– Implementation plan
Objective• Establish the South-East Asia Geospatial
information center.• Produce a demonstration system of online
geo-spatial data service• User can search and access the data
through various methods: text search, geo-location search, and meta-data search.
• The applications of the data will be for any studies that can utilize these data sets
Overview of GDAPGeo-Spatial Digital Archive Project
A demonstration system of online geo-spatial data service that user can search and access
the datathrough various through various methodsmethods : : text search, text search, geogeo--location search, location search, and metaand meta--data searchdata search . .The applications of the The applications of the data will be for any data will be for any studies that can utilize studies that can utilize these data setsthese data sets..
Motivation
– Availability of •Data: digital data via remote sensors,
aerial photos, vector, 3D, public maps •Communication: internet, multimedia•Tools/Software•Cheaper hardware: computers, storage,
digital cam, camcorder
Problem Statement
• Rarely exist online digital archive for Geo-Spatial Digital Data in Thailand
• Most kept for private usage• Create online Geo-Spatial Digital Archive
for public research
William Hunt’s Aerial Photographs Collection
World War II Map
Landsat Satellite Images
Sample Applications
– History and Archaeology Study – Urban Study – Land Use/Land Cover Study
Data Flow Diagram
TIFF
Metadata
DigitalArchive
JPEG Geo-Locate
Text-Based
Search Engine
Map Interface
Original
Converted
OpenLayer
Other Map Sources
GDAP Search Engine
Metadata
DigitalArchive
Text-BasedListing + Thumnail
Search Engine
Map Interface
OpenLayer
Other Map Sources
* Keyword Search* Web Interface* PHP Query to MySQL
Directory-Based
MySQL
• OpenLayer script• Query to MySQL• Embedded in HTML
• Google, MapServer• WMS, Yahoo, etc.
GDAP web site
SL-04
PC-01
Data inDigital Archive
PC-02
LOCATION INDEX
PC-03
Present Present Data in Data in
Location Location OrderOrder
PC-03a
Keyword Search Map System
PC-03b
Keyword Search
PC-04
bangkok
PC-05
Digital MapExample
PC-06
WHC Aerial Photograph on Map
PC-07
PC-10
PC-10a
Show the location of Map Data
On the Mark
Relation of database and map
PC-11
Acknowledgement
• CRMA• University of Kyoto - CSEAS• University of London -SOAS• Uninet