June 2005
Intermediate to advanced
568 pages
24h 7m
English
Content preview from Mapping Hacks
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Make Free Maps of the United States Online #14
Chapter 2, Mapping Your Neighborhood
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55
HACK
The TIGER/Line data set, which the Census Bureau updates
annually, contains vector data about streets, highways,
waterways, political boundaries, parks, metropolitan areas,
and more, all collected as part of the Bureau’s mission to
enumerate the population of the United States to ensure the
fair apportionment of federal congressional districts. Bless-
edly, the Bureau publishes the raw TIGER/Line data for free,
all several dozen gigabytes of it, already collected at tax-
payer expense, on the Census Bureau web site for anyone to
download and make use of. In doing so, they set a shining
example to the rest of the world of what it means for govern-
ment to provide and support a national geographic data
infrastructure.
Browsing the Web Interface
The TIGER Map Server Browser lives at http://tiger.census.gov/cgi-bin/
mapsurfer. With no other options supplied to it, the Browser loads a map of
Washington, DC, by default. Included are the usual web-based map inter-
face buttons for panning and zooming, and, on the upper right, a set of radio
buttons selects the action that’s taken when the map is clicked on. While the
zoom in, zoom out, and recenter commands are pretty standard for an
online map service, that’s where the similarity to other such services ends.
The next two commands allow you to put a marker of your
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.