Lab Manual/Exercise Worksheets prepared by Christopher J. Sutton, Western Illinois University
Graduated Symbol Mapping. While the terms "proportional point symbol map" and "graduated point symbol map" are often used interchangeably, these two terms have specific meaning in ArcMap. In the software, proportional symbol maps use absolute scaling or apparent magnitude scaling and graduated symbol maps use range grading. In this exercise students use range grading to map the intensity of Hurricane Katrina and Hurricane Emily, two hurricanes that reached Saffir-Simpson Scale Category 5 in 2005. Skills covered in this exercise include: creating a shapefile from a table containing Latitude and Longitude coordinates, using the Definition Query to limit the records being displayed, manually adjusting class upper limits, redundant coding, and adding a graticule.Proportional Symbol Mapping. In this exercise, students employ both absolute scaling and apparent magnitude scaling to map data for the state of Texas. Skills covered in the exercise include: adjusting the minimum symbol size for symbol scaling, adjusting symbol properties, viewing descriptive statistics for a field, changing the background properties of the proportional symbol map layer, using Flannery compensation, and specifying the number of symbols to display in the legend.
Acknowledgments
The author wishes to thank ESRI, Inc. for their prompt and generous permission to use screenshots of the GUI and data used in these exercises. ArcMap is the intellectual property of ESRI and is used herein by permission. Copyright © 2008 ESRI. All rights reserved. http://www.esri.com
In addition to the data provided by ESRI, data used in the exercises are from the following sources: The National Atlas
2002 Agricultural Census
CIA World Factbook
U.S. Bureau of the Census
Federal Aviation Administration
NOAA Coastal Services Center
 Graduated Symbol Mapping
(1739.0K)
Proportional Symbol Mapping
(1390.0K)
Graduated Symbol Mapping and Proportional Symbol Mapping are PDFs (Portable Document Format) document that must be downloaded to your hard drive. You will need the Adobe Acrobat Reader to view it. If you do not have the Adobe Acrobat Reader, you can download it from the Adobe web site for free.  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0072943823/41597/getacro.gif','popWin', 'width=138,height=101,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]> Graduated Symbol Mapping PDF
(1701.0K)
Proportional Symbol Mapping PDF
(1377.0K)
 Graduated Symbol Mapping Zip
(1068.0K)
Proportional Symbol Mapping Zip
(296.0K)
The mapping project file ([exercise name].mxd) and data files (contained in a separate folder) are compressed as a ZIP file and must be unzipped in order to work. Save the file to a location on your computer or external drive and unzip it.
|
2009 McGraw-Hill Higher Education