Book Image

Building Mapping Applications with QGIS

By : Erik Westra
Book Image

Building Mapping Applications with QGIS

By: Erik Westra

Overview of this book

Table of Contents (16 chapters)
Building Mapping Applications with QGIS
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Free Chapter
1
Getting Started with QGIS
Index

Further improvements and enhancements


Of course, while Lex is a useful and complete mapping application, it is really only a starting point. The information provided in the freely available populated places dataset doesn't make for a particularly interesting set of landmarks, and our application is still quite basic. Here are some suggested improvements you could make to the Lex application:

  • Add a Search action, where the user can type in the name of a feature and Lex will zoom and pan the map to show that feature.

  • Let the user choose any two landmarks, and display the distance between those two points in both kilometers and miles.

  • Allow the user to load their own set of landmarks, either from a shapefile or an Excel spreadsheet. When loading from a shapefile, the user could be prompted to select the attribute(s) to display for each feature. When loading data from a spreadsheet (using, for example, the xlrd library), the various columns would contain the latitude and longitude values as well...