Lab 10

I. Read Bolstad Chapter 4 and answer the following questions based on the reading and lecture.

1. Would you have more problems with feature generalization and omission in large or small scale maps? Why?

You would have more problems with feature generalization and omission on a small scale map. This is because there are fewer details on a small scale map (it is zoomed out more). A large scale map, on the other hand, is zoomed in more and due to this there are more details. In addition, on large scale maps less generalization is needed.

2. What is snapping in the context of digitizing? Why is snapping important (i.e. what does it help avoid)?

Snapping is a process of automatically setting nearby points to have the same coordinates. This helps to reduce the number of undershoots and overshoots while digitizing.

3. What is COGO and how does it relate to coordinate surveying?

COGO stands for coordinate geometry, and it is spatial data that consist of a starting point with a list of directions and distances to subsequent stations.

II. AFTER completing Ormsby Chapters 14 -17, complete the following exercises.

EXERCISE A

Q: What is the feature class type (point, line or poly) for Springs?

Point