Practice Example 4.2 (5.1.2) - Graphical Radial Triangulation

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6 sample questions

Question 1.
What is a Ground Control Point?
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Think about how you stabilize your position in a photo.
Question 2.
Name one type of control point used in radial triangulation.
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Consider their roles in mapping.
3Question 3.
What do Ground Control Points (GCPs) assist with in mapping?
- Determining altitude only
- Identifying features in photographs
- Establishing reference points for accurate mapping
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Think about why we plot points in relation to something stable.
4Question 4.
True or False: Minor Control Points help to stabilize the scale in triangulation.
- True
- False
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Recall the role of these points.
Question 5.
Discuss the impact of not having sufficient ground control points on the accuracy of an aerial map.
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Consider what could go wrong in your mapping project.
Question 6.
How would you design a process to ensure that all control points are accurately identified and transferred across multiple photographs?
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Think about the steps involved before actual mapping.

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