Discussion
Which of the following sketching methods is the most suitable for large outdoor crime scene ?
Answer: D
The key's answer is the polar coordinate method.
In the polar coordinate method the sketcher fixes one reference point and records each item by its angle (measured with a compass or transit) and its distance from that point. Because it needs only one known point, it suits large open outdoor scenes, where there may be no walls or fixed objects to measure from.
Triangulation is also used outdoors but needs two fixed reference points for every item. The baseline method suits long, narrow scenes or rooms, and photogrammetry is a photographic measuring technique rather than a sketching method.
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