G EOGRAPHIC I NFORMATION S YSTEMS Models, Libraries and Tools www.esri.com/environment.

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G EOGRAPHIC I NFORMATION S YSTEMS Models, Libraries and Tools

D ATA M ODELS Data models are used to represent real world objects in a GIS Earliest non trivial models include GBF-DIME, POLY VRT, and TIGER Currently there are 3 main types: Vector Models. Raster Models. Surface Models. REAL WORLD GRID RASTERVECTOR mississippi.deltastate.edu/ data /.../Lecture%202%20- %20GIS%20 data %20 models. ppt

D ATA M ODELS Vector Models Spaghetti ModelsNetwork ModelsTopological Models Source: vectordatamodel s. ppt

D ATA M ODELS Raster Models Surface Models: Raster Based Models Vector Based Models. - TINS - Theissen Polygons Source: vectordatamodel s. ppt

E NVIRONMENT M ANAGEMENT AND GIS Pre-processing of data Sampling Geometric transformation Format conversion Modeling and analysis Auto-correlation Regression Interpolation Post-processing Visualization Reporting GIS/documents/marriage-cad- gis.pdf

FOSS AND ENVIRONMENTAL M ODELING

System Softwares Linux, MS-Windows Geospatial Data Processing Libraries Data Management Data Integration Geo-analytical Tools Data Storage and Serving Scripting languages Perl,Python User Interface G EOSPATIAL S OFTWARE S TACKS

GIS O PEN S OURCE L IBRARIES GDAL/OGR C++ libraries for raster and vector data respectively. JTS (Java Topological Suite) Complete suite for 2D spatial algorithms based on the Simple Features for SQL specification of OGS. GEOS is its C++ port. JCS (Java Conflation Suite) Java based tool for conflation and cleaning of spatial data sets, which helps in error detection and automatic/manual correction. GPSBabel Tool to between various GPS data formats. It can translate waypoints, routes and tracks and partially signal quality information between various data formats.

G EOSPATIAL A PPLICATIONS Wikipedia

Source: Both are GIS applications Reduction of redundancies in data collection and maintenance Promotes information sharing and standardization of procedures Increases functionality and efficiency GIS AND CAD : N EED FOR INTEGRATION

Milestones Workstation Phase AutoCAD, Desktop GIS products ArcCAD, AutoCAD Map, Autodesk World Web Phase Whip! (Autodesk DWF TM Viewer), MapGuide Wireless Phase Autodesk Onsite View, Location-Based Services, Enterprise GIS I MPACT OF TECHNOLOGICAL INFLECTION POINTS ON GIS AND CAD

F UTURE Service Oriented Architecture Demand for rapid data and application processing