ch01 - Chapter 1: Introducing GIS Learning and Using...

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Chapter 1: Introducing GIS Learning and Using Geographic Information Systems: ArcExplorer Edition
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  Learning and Using Geographic Information Systems: ArcExplorer Edition 2 Objectives Survey GIS and its unique capabilities Explore the basics of digital map layers Learn about map infrastructure Gain an overview of the Swimming Pool Case Study Use your browser to navigate maps in a Web GIS site Use your browser to conduct analysis on a Web GIS site
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  Learning and Using Geographic Information Systems: ArcExplorer Edition 3 Definition of GIS Computer-based Computer technology using desktop GIS Dynamic mapping system Not a static map but a dynamic system that you control Spatial data processing and querying capabilities You can put points on the map from scratch, conduct data queries, and conduct spatial queries
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  Learning and Using Geographic Information Systems: ArcExplorer Edition 4 Unique Capabilities of GIS Uniquely answers questions about where GIS stores the coordinates of graphic features GIS stores related graphic features in separate collections of files called map layers Map layers can be reused easily and assembled into any number of map compositions
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  Learning and Using Geographic Information Systems: ArcExplorer Edition 5 ArcExplorer map with results from several tools
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  Learning and Using Geographic Information Systems: ArcExplorer Edition 6 Map Layers Vector-based drawings Based geographic locations, called points, that have (x, y) coordinates Raster-based images Checker board of small squares each with a solid color fill
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  Learning and Using Geographic Information Systems: ArcExplorer Edition 7 Vector-based Map Layers Point, line, and polygon features Point has x and y coordinates Line has a starting and ending point and may have additional shape vertices (points) Polygon has three or more lines joined to form a closed area Feature attribute tables Stores characteristics for point, line, or polygon map layers
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  Learning and Using Geographic Information Systems: ArcExplorer Edition 8 Vector Feature Types and Attribute Table
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Learning and Using Geographic Information Systems: ArcExplorer Edition 9 Raster Image Maps Stored electronic image or picture taken as an aerial photograph or satellite image Electronic image is composed of a rectangular array
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This note was uploaded on 07/11/2011 for the course MIS 658 taught by Professor Dr.d during the Spring '11 term at Our Lady of Holy Cross College.

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ch01 - Chapter 1: Introducing GIS Learning and Using...

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