Fig. 1: Conceptual diagram of triangulation
For example, when you want to measure the height of a tree, stand in a location a little distant from the tree. If the distance between you and the tree and the angle formed by line between the standing location and the top of the tree and the ground surface are known, you can calculate the height of the tree. This is also considered to be an application of triangulation (assuming that the angle formed by the tree and the ground surface is 90 degrees) (Fig. 2).
Fig. 2: Measuring the height of a tree
The use of this triangulation principle allows you to measure the three-dimensional shape of an object located in