June 2005
Intermediate to advanced
568 pages
24h 7m
English
Content preview from Mapping Hacks
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Chapter 2, Mapping Your Neighborhood
#18 Why You Can’t Watch Broadcast TV
HACK
Getting Started with SPLAT!
You can download SPLAT! from its homepage at http://www.qsl.net/kd2bd/
splat.html. Grab the latest tarball, which as of this writing was splat-1.1.0.
tar.gz, and unpack and build it as follows. The SPLAT! application and utili-
ties will install under /usr/local by default:
# tar zvfx splat-1.1.0.tar.gz
# cd splat-1.1.0
# ./configure
# ./install all
You’ll need to make sure you have the zlib and bzip2 devel-
opment libraries installed on your system in order to build
SPLAT! correctly. On Debian Linux, try
apt-get install
zlib1g-dev libbz2-dev
. On Red Hat and Fedora, install the
RPMs for bzip2-devel and zlib-devel.
Now you need a model of your terrain: a digital elevation model, or DEM.
You can get the 1:250k (a.k.a. “1 degree”) DEMs from the USGS EROS
Data Center at http://edc.usgs.gov/geodata/. Click on the “1:250k DEM” link,
and then select “FTP via State” or “FTP via Graphics.” As of this writing, the
“FTP via Graphics” link will show you a map that you can click to zoom in
on, but clicking the actual quadrangle to download the model caused a 404
File Not Found error. Still, you can use this map to figure out which quad-
rangles you need and then use the “FTP via State” link to actually download
them. Be sure to get the compressed, rather than uncompressed, DEM files.
For our example, we’ll
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.