Transcription of Introduction to GIS - MIT OpenCourseWare
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Introduction to GIS - MIT OpenCourseWare
Introduction to GIS 1 Overview What is GIS? Types of Data and Projections What can I do with GIS? Data Sources and Formats Software Data Management Tips 2 What is GIS? 3 Characteristics of GIS The data Spatial Tabular Methods Data input Data management Data analysis: answer questions that may not be explicitly stated in the data Data output: maps, new data Software and hardware 4 Characteristics of GIS: Data Layers With GIS software, you can digitally represent geographic objects with a variety of shapes and layer those shapes on top of one another to create maps and perform analysis. Polygons 5 With GIS software, you can digitally represent geographic objects with a variety of shapes and layer those shapes on top of one another to create maps and perform analysis. Polygons Lines Characteristics of GIS: Data Layers 6 With GIS software, you can digitally represent geographic objects with a variety of shapes and layer those shapes on top of one another to create maps and perform analysis.
PostgreSQL) •Can be transformed into spatial data and mapped: –Join with spatial data files by a common attribute (state name, unique ID, etc.) –Map as points using coordinates such as longitude and latitude gathered from a GPS device –Geocode: associate address fields with a street network 16
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