LAB 1
Curtis GEOG337 S18
Jeffrey Hessburg
Lab 1
This lab first asked what Geographic Coordinate System(GCS), Projected Coordinate System(PCS), and Projection was used in a provided map. To find this you go to the desired layer's properties, and check the source. It is important to know this information, especially if you are adding new data to the map. You do not what to have data that is displayed in two different coordinate systems, the data would not be accurately represented.
The next things asked were what ArcCatalog is, and what is the difference between that and ArcMap. It is very important to know what ArcCatalog is, and how to use it. It is essential for organizing, understanding, and uploading data to ArcMap.
The next steps were to look at attribute tables for different layers. Attribute tables are key to understanding the data in each layer. It is also very important to know how to manipulate the data correctly to answer certain questions. The question was asked: What are the street names of the 'Major Highways' crossing the Redlands map? To do this you have to know which attributes to look for then how to select the correct attributes. In this case you can open the attribute table, click select by attributes, then enter CLASS_DESC = Major Highway. All major highways are selected, making it easy to answer the question.
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