horizontal control的意思|示意

Horizontal control is a surveying term that refers to the process of measuring and mapping the X, Y (horizontal) coordinates of points on the ground. It involves creating a network of linear surveys that establishes the relative location of points on the surface of the earth. This control system is used to produce topographic maps and engineering drawings that are accurate representations of the earth’s surface.

Horizontal control utilizes a variety of survey instruments, such as total stations, transits, theodolites, and electronic distance meters. The instruments are used to measure and map the distance, direction, and elevation of points. These points are then linked together with a series of linear measurements, allowing the coordinates of the points to be determined.

Horizontal control is a critical part of mapping projects. It is used to establish the origin, origin point, of a survey project and also provides a common reference point for all of the surveys. The map produced with the horizontal control serves as the reference map for all of the other surveys in the mapping project.

Horizontal control is also used to compare and check the accuracy of other surveys. By setting up a network of control points, the accuracy of any other survey taken within the network can be verified. This helps to ensure the accuracy of the mapping project and avoids costly mistakes.

Overall, horizontal control is a crucial surveying technique that is used in the production of accurate maps and engineering drawings. It helps to establish the origin point of a mapping project, as well as providing a common reference point for all of the surveys. It can also be used to check and compare the accuracy of other surveys.