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GTECH 361 Lecture 02 Introduction to ArcGIS
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Today’s Objectives explore a map and get information about map features preview geographic data and metadata add data to a map describe the structure of a map explain how a GIS represents real-world objects change the way features are drawn on a map access feature information in different ways describe spatial relationships of map features describe how GIS can be used to solve problems
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GIS Map Organization
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Representation Point, line, and polygon features
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Geo-Relational Principle 1
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Geo-Relational Principle 2
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Scale
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The ArcGIS Suite
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System Architecture
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ArcMap
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Map Production
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ArcCatalog
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ArcCatalog Views
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ArcToolbox
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Metadata
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Metadata in ArcGIS
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Help
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GIS Data Formats
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Maneuvering ArcGIS
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Connecting to Folders
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Table of Contents
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Exploring a Map
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Making Appearances
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Making Appearances part 2
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Localized Information
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Spatial Relationships 1 Distance Which countries contain a lake completely within their borders? Which cities are located within 25 kilometers of a river?
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Spatial Relationships 2 Intersection Which countries have a river that intersects their border?
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Spatial Relationships 3 Adjacency Which countries share a border with Russia?
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Spatial Relationships 4 Containment Which countries contain a lake completely within their borders?
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GIS as a Process 1 1.Capture data 2.Store data 3.Query data 4.Analyze data 5.Display data 6.Present data
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1.Ask a geographic question 2.Acquire geographic data 3.Explore geographic data 4.Analyze geographic information 5.Act on geographic knowledge GIS as a Process 2
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Summary A GIS organizes and stores information about the world as a collection of thematic layers. Each layer contains features with the same shape and attributes, all located within a common geographic area. Each feature is assigned a unique numerical identifier and is characterized by a unique location in space and a corresponding record in a table. Features can be stored in a GIS as three primary shapes: points, lines, or polygons. Features have spatial relationships with other features, and with a GIS you can find features based on their spatial relationships. The geographic inquiry process provides a framework for solving problems with GIS.
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