What is CITYZEN?

CityZen is a rather aged bit of software and doesn't run well on PalmOS devices manufactured in the 21st century.

Recompiling it for modern devices is not a trivial matter as it does all sorts of horrible non-standard things based on assumptions about the hardware inside old Palm machines. These assumptions are no longer true which is why it won't run on modern devices.

I am considering producing an updated version to take advantages of the increased power of todays handheld computers and/or phones. Possible features include using a proper spherical projection, drawing coloured maps and having the ability to add customised overlays of your own data.

A while ago, I built a prototype system to explore how much processing power would be required to handle drawing a true spherical projection akin to a real atlas. Assuming you have the appropriate Java technology in your web browser, you can play with it here.

In order to produce something like this for PalmOS systems, I would of course need a shiny new-fangled handheld machine. If you want to give one to me, let me know!

Example image
Example image

CITYZEN is a combination of a world map and a database of country, city, lake and ocean names. You can zoom in and out, move around the map and measure distances using the pen.

World: 20,379 line segments
Places: 3,350 entries

The application, segment and label databases, and the run-time preference database require 162K of memory.

CITYZEN is designed to help answer questions like `where is Easter Island?', `what is the capital of Nepal?' and `how far is it from New York to York?'. It also has a quiz facility, and can test you on topics such as `capitals of the world', `countries of Europe', `cities in Brazil'.

The databases used by CITYZEN are compiled from data provided by GRID-Arendal, part of the United Nations Environment Programme.

This is BETA release software; it has been tested to the best of my ability, but may contain bugs. Please backup your data before trying CITYZEN and report any problems you encounter.

Example image
Example image

Web Site: http://www.cs.man.ac.uk/~hancockd/CityZen/index.html

 

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CITYZEN is Copyright © 1999 David Hancock.

You are free to use and distribute this version (CITYZEN-1.1-BETA) for non-commercial use.

Source databases from UNEP-GRID Global Resource Info Database.

CITYZEN-1.1-BETA Document Version 1.1.0 5th May 1999

 

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