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Introduction to GIS Systems. Ady Ecker. History. Cartography Military C 4 I Government Transportation Agriculture Business Communications, mobile devices Internet http://gis.esri.com/esriclips/clip.cfm?ClipID=60. Applications.
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Introduction to GIS Systems Ady Ecker
Cartography Military C4I Government Transportation Agriculture Business Communications, mobile devices Internet http://gis.esri.com/esriclips/clip.cfm?ClipID=60 Applications
The North Carolina Center for Geographic Information & Analysis (CGIA) For More Information www.cgia.state.nc.us
A computer-based data storage and analysis tool that combines previously unrelated information into a comprehensive picture. What is a Geographic Information System (GIS)?
Corporate Geographic Database Wetlands Flood Zones Land Ownership Landcover Transportation Surface Waters Boundaries Water Lines Elevation Sewer Lines Geodetic Control Soils Aerial Imagery Framework Data Thematic Data
GIS gives you the power to do things that were simply impossible before.
The power to understand complex relationships. Forsyth County: Water Supplies & Water Delivery System
The power to plan for tomorrow, based on an accurate picture of today.
Crime reduction Public safety enhancement Siting new schools Redistricting Floodplain mapping Growth management Disaster recovery Tax mapping Economic development School bus routing Fire station location Land conservation Environmental impact studies Water & sewer expansion Superfund cleanup GIS can be applied to:
Situation #1: The City of Wilson needed to locate a new fire station.
drive all the roads in the city figure times and distances to each household and business by hand allow a year to complete the study Wilson, N.C. Without GIS:
With GIS: ran more than 40 computer scenarios in just 3 days analyzed benefits of building a new station versus moving an existing one determined best solution: relocate 2 existing stations Wilson, N.C.
Results: reduced time to reach all locations in city from 7 minutes to 4 minutes over 5 years, city saved an estimated $2,000,000 in building costs, equipment, salaries, etc. Wilson, N.C.
Floodplain mapping 500 year flood 100 year flood Hurricane Floyd Flooding in Greenville
Fundallocation Prime Farmland in Johnston County
display Application logic Typical system structure data acquisition storage network
Computer vision Computational Geometry Graphics HCI Research areas
Ellipsoid Projections: Geographic, UTM Distance, Azimuth Datum Geodesy
Elevations • Geoid • DTM representations: TIN, Grid, elevation contours • Problems: • interpolation • rendering • line and area of sight • planning routes in 3D • HCI
Formats Data integration Software engineering Printing Practical issues
Nima ESRI – ArcGIS Intergraph - Geomedia MapInfo Autometric (Boeing) Key Players
http://gis.esri.com/esriclips/clip.cfm?ClipID=83 http://gis.esri.com/esriclips/clip.cfm?clipID=111 http://gis.esri.com/esriclips/clip.cfm?clipID=107 ESRI
Queries GeoMedia Demos
http://www.skylinesoft.com/corporate/go3d/go3d_home.asp?StartCity=Washingtonhttp://www.skylinesoft.com/corporate/go3d/go3d_home.asp?StartCity=Washington Skyline