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Chapter 1 It’s a Geospatial World Out There
use the Move controls to “fly” over the Badlands from this overlook
point. When you’re down done cruising around the Badlands, answer
Question 1.5.
Question 1.5 How does the terrain modeling (with the tilt function) aid
in the visualization of the Badlands?
7. This ability to model the peaks and valleys of the landscape with aerial
imagery “draped” or “stretched” over the terrain for a more realistic
appearance is often used with many aspects of geospatial technology.
Chapter 13 greatly expands on this by getting into how this is actually
performed as well as doing some hands-on terrain analysis.
1.4 Using Google Earth to Save Imagery
It’s time to continue on the next leg of our South Dakota journey by heading
to Mount Rushmore. Carved out of the side of a mountain in the Black Hills,
Mount Rushmore is a monument featuring the faces of presidents George
Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln.
For more information about Mount Rushmore visit http://www.nps.gov/
moru.
1. In GE’s Fly To box, type “Mount Rushmore.” GE will zoom around to an
overhead view of the monument. Like the Badlands, Mount Rushmore is
a national park—zoom out a little bit until you can see the extent of the
park’s boundaries (still outlined in green).
2. To begin, you can save an image of what’s being shown in the view. GE
will take a “snapshot” and save it as a JPEG graphic file (.jpg), which is
like a digital camera picture. Position the view to see the full outlined
extent of Mount Rushmore, select the File pull-down menu, then select
Save, and finally select Save Image. Name the image “moru” (GE will
automatically add the .jpg file extension) and save it to your computer’s
hard drive.
3. Minimize GE for now and go to the location on your computer where
you saved the image, and then open it to examine it (for instance, with
Microsoft Office Picture Manager).
Question 1.6 Note that even though the graphic contains the locations
of Mount Rushmore, the outline of the park, and latitude/longitude and
elevation information at the bottom, it doesn’t have any spatial reference for
measurements. Why is this?
4. Close the image and return to Google Earth. Even though the saved
image doesn’t have any spatial reference, Chapter 3 describes how to
take unreferenced imagery (or other unreferenced data) and transform
it to match referenced data. In Chapter 3’s lab, you do this in a hands-on
fashion. You can also turn off the Parks/Recreation layer for now.
Chapter 1 It’s a Geospatial World Out There
use the Move controls to “fly” over the Badlands from this overlook
point. When you’re down done cruising around the Badlands, answer
Question 1.5.
Question 1.5 How does the terrain modeling (with the tilt function) aid
in the visualization of the Badlands?
7. This ability to model the peaks and valleys of the landscape with aerial
imagery “draped” or “stretched” over the terrain for a more realistic
appearance is often used with many aspects of geospatial technology.
Chapter 13 greatly expands on this by getting into how this is actually
performed as well as doing some hands-on terrain analysis.
1.4 Using Google Earth to Save Imagery
It’s time to continue on the next leg of our South Dakota journey by heading
to Mount Rushmore. Carved out of the side of a mountain in the Black Hills,
Mount Rushmore is a monument featuring the faces of presidents George
Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln.
For more information about Mount Rushmore visit http://www.nps.gov/
moru.
1. In GE’s Fly To box, type “Mount Rushmore.” GE will zoom around to an
overhead view of the monument. Like the Badlands, Mount Rushmore is
a national park—zoom out a little bit until you can see the extent of the
park’s boundaries (still outlined in green).
2. To begin, you can save an image of what’s being shown in the view. GE
will take a “snapshot” and save it as a JPEG graphic file (.jpg), which is
like a digital camera picture. Position the view to see the full outlined
extent of Mount Rushmore, select the File pull-down menu, then select
Save, and finally select Save Image. Name the image “moru” (GE will
automatically add the .jpg file extension) and save it to your computer’s
hard drive.
3. Minimize GE for now and go to the location on your computer where
you saved the image, and then open it to examine it (for instance, with
Microsoft Office Picture Manager).
Question 1.6 Note that even though the graphic contains the locations
of Mount Rushmore, the outline of the park, and latitude/longitude and
elevation information at the bottom, it doesn’t have any spatial reference for
measurements. Why is this?
4. Close the image and return to Google Earth. Even though the saved
image doesn’t have any spatial reference, Chapter 3 describes how to
take unreferenced imagery (or other unreferenced data) and transform
it to match referenced data. In Chapter 3’s lab, you do this in a hands-on
fashion. You can also turn off the Parks/Recreation layer for now.