June 2005
Intermediate to advanced
568 pages
24h 7m
English
Content preview from Mapping Hacks
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Mapping Local Areas of Interest with Quantum GIS #64
Chapter 6, Mapping on Your Desktop
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295
HACK
HACK
#64
Mapping Local Areas of Interest with
Quantum GIS Hack #64
When you need to explore a new area but don’t have a quick way to get a
“bird’s-eye” view of the land, a GIS browser can come in handy.
Sometimes you find yourself interested in an area, perhaps for recreation,
relocation, or just out of an overwhelming sense of curiosity. There are
many sources of free GIS data and imagery available on the Internet—maybe
you’ve gotten a hold of a piece of geospatial data and just want to see what it
contains. In this hack, we are going to explore a new area by downloading
an aerial photograph and the corresponding topographic map. We will use
Quantum GIS,orQGIS to its friends, to display the data. QGIS runs under
Linux and various flavors of Unix.
First you need to download and install QGIS. QGIS source code, RPMs, and
installation instructions are available from http://qgis.org/. Debian Linux
users will find the apt repository at http://bullhorn.org/debian/ useful.
Selecting Our Area of Interest
The first task is to find the spot we are interested in and download some
data. Suppose we want to make a trip to the Grand Canyon and are inter-
ested in taking a look at some of its features prior to traveling. For the pur-
poses of this hack, we will choose an area around Burro Canyon. The next
task is to find ...
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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.