Transcript Introduction to Visual Basic and MapObjects

Bridging the digital divide in
WV GIS systems
Presenter: Tu H. Tran, MS
Marshall University
GIS used in WV
(Wood County Assessor, 2009)
Bridging the digital divide in WVGIS
Introduction (cont.)
• Mixed GIS application standards:
▫ ESRI
▫ Mapinfo
▫ OpenGIS, QGIS, uDig, GRASS, etc
• Mixed data type:
▫ .shp
▫ Cad
▫ Geo-tif
Bridging the digital divide in WVGIS
Problems
• With the current technologies and applications,
WV GIS agencies had some difficulties in:
▫ Sharing information
▫ Reusing information
across the system.
Bridging the digital divide in WVGIS
Project Purpose
• Develop an efficient and cost effective solution to
help:
▫
▫
▫
▫
Share data
Save time and storage space
Provide public access at convenient locations
Provide references to other research
Bridging the digital divide in WVGIS
Solution
• Using a combination of commercial and
openGIS standard
▫ Set up a multi-tier GIS server system
▫ GIS Map Server for Web map application services
Beckley City’s Metro GIS system at Raleigh county
is an example of successfully applying this
system
Bridging the digital divide in WVGIS
Discussion
GIS System
Bridging the digital divide in WVGIS
Discussion (cont.)
• Data center
Bridging the digital divide in WVGIS
Results
• Public user can have access through the Web site
Bridging the digital divide
in Assessor,
WVGIS2009)
(Cabell
Results (cont.)
• Save millions of dollars by reusing data and
resources.
• Example:
▫ $3 * 60000 parcels = $180,000
▫ $180,000 * 55 counties = $9,900,000
Bridging the digital divide in WVGIS
Results (cont.)
• The multi-layer GIS system can support
different GIS projects
• Save from 7 to 10 days until receiving the mail
data or save several months or years by not
building again
• Save lots of spaces:
▫ (210+772)Mb * 55 conties = 54 Gb
▫ 54Gb * 2 = 108 Gb
Bridging the digital divide in WVGIS
Scenario 1: Cadastral layer with
Geomajas, PostGIS and Tomcat 6
• http://172.16.6.23:8080/majastutorial/applications/db/html/db.html
Bridging the digital divide in WVGIS
Scenario 2: GIS and 3G network
• Crime mapping:
http://www.crimemapping.com/
• Huntington Crime Database
http://ist436.njrati.net/~ttran/simple-map/
Bridging the digital divide in WVGIS
Scenario 2 discussion
• OpenSource : Ubuntu server 9.10, PostgreSQL
8.3, PostGIS 1.4, ...
• Functionalities: Add, Edit, analysis
• iPhone SDK
• 3G or 4G services
• GPS accuracy
Bridging the digital divide in WVGIS
Bridging the digital divide in WVGIS
iPhone GPS accu.
• Cell tower: <500m
• internet: <30m
• GPS: <10m
(iGPSd, 2010)
Bridging the digital divide in WVGIS
And also save life
Bridging the digital divide in WVGIS
Bridging the digital divide in WVGIS
Conclusion
• Support and carry on other WV GIS projects.
• Provide a faster means to organize, to maintain,
and to manage the GIS system
• Furnish the ability to access, edit, and share
information with a click of a button.
Bridging the digital divide in WVGIS
Future project
• Huntington Crime analysis using PostGIS and
dojo framework
• Real time speed synchronizing app (Android,
iPhone, Window Mobile, google)
• GIS robotic controlling by Mobile Apps and VNC
software
Bridging the digital divide in WVGIS
Question, Comment & Answer
• Thank you.
GIS Provides a Healthy Environment
Bridging the digital divide in WVGIS