Caliper Mapping and Transportation Glossary

DEFINITION

What is a size theme?

A size theme (also called a scaled-symbol theme) is a type of thematic map that uses symbols of different sizes or lines of different widths to show the value of a data field. Features that have a greater value for the chosen field will be shown larger or with a greater width.

What is a size theme: Sample Maptitude maps that use size themes to illustrate the characteristics of map features

A point layer of customs (left) with a size theme on the value of sales. Customers with higher sales are shown larger. A line layer of highways (right) with a size theme on the value of vehicle flow. Highways with more vehicles are shown wider than those with less traffic.

GIS Software for Creating Size Themes

Maptitude Mapping Software gives you all of the tools, maps, and data you need to analyze and understand how geography affects you and your business. Create informative thematic maps that use size themes to show the characteristics of your area of interest.

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