Geography Reference
In-Depth Information
A digital elevation model (DEM) in the form of an ArcInfo raster consisting of square pillars or
posts of elevation that are approximately 30 meters on a side: COLE_DEM.
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A triangulated irregular network (TIN) showing elevations derived from the DEM, in the form of an
ArcInfo TIN: COLE_TIN.
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A raster showing Fayette County land landcover: fyttelc06alii.
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A raster showing Kentucky land landcover: MSU_SPNorth.
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A File Geodatabase: Terrain_from_LIDAR.gdb.
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\KY_SP_North_NAD83\River_Bend_and_Water_Plant_Terrain.
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In the steps that follow, you will add these feature-based, grid-based, image-based, and TIN-based layers
to the map.
10
The photograph in Figure 2-14 is a newspaper photo of a part of the area that you will be
looking at.
FIGURE 2-14 Courtesy of the Lexington Herald-Leader, Lexington,
Kentucky
12.
Enlarge the map window a bit so that it occupies almost the entire ArcGIS window, which
should itself be set to occupy the full monitor screen. If you are really short on screen space,
making the T/C auto-hide will increase the real estate of the map window. Under Customize >
Extensions, make sure 3-D Analyst and Spatial Analyst have checks beside them.
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Raster and image files may be contained as freestanding entries in file and personal geodatabases. TIN files stand on
their own directly in folders.
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