This document provides an overview of geospatial PDFs and their basic features, as well as some of the tools available to interact with these files, using USGS US Topos as a case study. 2nd edition, published in 2019.
One of the ways that interactive Web-based maps are different from traditional paper maps is that Web maps permit users to dynamically change map scale by interacting with a zoom tool. The ability to dynamically change map scale poses some challenges for cartographic design, since the mapping engine must be prepared to effectively render map data for different scale displays. This Technical Paper provides a quick overview of concepts and methods for Web-based cartography, with specific reference to issues of content selection and feature symbolization in the context of scale change.
Stuggling with the design and logic of your online maps? Check out our new technical paper called “Concepts and Methods for Rule-Based Web Cartography.”