triangulációra

Triangulációra, which translates to triangulation in English, is a fundamental geometric concept with wide-ranging applications. It involves determining the position of a point by measuring angles to it from two known points. This creates a triangle, where the two known points form a baseline, and the unknown point is the third vertex. By measuring the angles from each known point to the unknown point, and knowing the distance between the two known points (the baseline), trigonometry can be used to calculate the distances to the unknown point and thus its exact location.

The principle of triangulation is used extensively in surveying to map terrain and establish property boundaries. In navigation, especially historically, it was crucial for determining a ship's position by taking bearings to known landmarks or celestial bodies. Modern GPS systems, while employing more sophisticated satellite-based methods, still rely on the underlying principles of positional determination derived from triangulation. In astronomy, triangulation is used to measure the distances to nearby stars through a technique called stellar parallax, where the apparent shift in a star's position is measured against the background of more distant stars as the Earth orbits the Sun. The concept also appears in fields like computer graphics for creating 3D models and in signal processing for locating the source of a signal.