Assignment #1: Selecting Features & Spatial Analysis
Review Gorr/Kurland, “GIS Tutorial I: Introduction”; “GIS Tutorial 4:
Geodatabases”; “GIS Tutorial 5: Importing Spatial and Attribute Data” (pages
172-80); “GIS Tutorial 8: Spatial Data Processing” (pages 269-274); “GIS
Tutorial 9: Spatial Analysis” (pages 303-7); and Ormsby et al., chap. 4
Peruse the following “How To” documents on the course web site: “How to
Manage GIS Data Sets” and, where relevant, “ArcGIS Tips.”
If you are working on your own computer, make sure that your GIS folders
are located under c:\TEMP, as described in “How to Manage GIS Data Sets.”
Use ArcCatalog, not Windows Explorer, to manage ArcGIS data files.
The following exercises will use these data layers: Mdbg (which is the Miami-
Dade Block Group), Mobile Homes, Colleges, Highways, and arail.
Their common geographic coordinate system could be: Layers>Properties>
Predefined>Projected Coordinate Systems>World>North American 1983
HARN (High Accuracy Reference Network).
It could be more accurate to use
a locally tailored projected system, such as: Layers>Properties>Coordinate
System>Predefined>Projected Coordinate Systems>State Plane>NAD
1983>State Plane Florida _East_FIPS_0901). Or alternatively you could use
an unprojected coordinate system: Layers>
Properties>Predefined>Geographic Coordinate Systems>World>WGS 1984.
5280 feet=1 mile, 1 mile=1.609344 kilometers.
Note that, in ArcMap, Data>Export Data
saves a map layer as a shapefile to
The course web site document ‘Selecting Features’ pertains to the following
Inspect mdbg, Lmobhome, Lcollege, and AHighway in ArcCatalog
Preview, Table, and Metadata
In Metadata, inspect the ‘Spatial Reference Information,’ particularly
the geographic coordinate system).
Perhaps an easier way to inspect a coordinate system: right-click a
file> Properties> Shape (click gray box)>Field Properties>Spatial
Make sure that the files you intend to map share the
same, appropriate coordinate system.
Define a coordinate system in ArcCatalog:
Right-click each file>Properties>Fields.
Click the gray area next to
‘Shape’, then, in the ‘Field Properties’ box below, click the ellipses to
the right of ‘Spatial Reference’. Then ‘Select’ or ‘Import’ a coordinate
Do so for mdbg as well.
Then for Lmobhome, Lcollege, and LHighway, import the coordinate
system from mdbg.