Saturday, January 09, 2016

What is the Meaning & Definition of topography

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The topography is a discipline that specializes in the detailed description of a ground surface. Meanwhile, for it deals with detailed study of the set of principles and procedures which facilitate graphical representation of shapes and details that has a surface in question, whether they are the same natural or artificial.
This type of representation is carried out in features flat surfaces, limited to small tracts of land, major areas of Geodesy is occupied.
The topographical discipline turns out to be a huge utility to sciences such as architecture, agronomy, geography, and engineering. For example, the application of concepts of geometry for the description of physical reality prove to be of enormous importance to instances of agricultural activity and in the construction of buildings.
Meanwhile, the topography will require a work in two dimensions, because in the first instance the visit to the land in question is required to this way analyze it with appropriate instruments; and then, in a next stage of the work will be essential transfer of the data obtained in first person in the place, a Cabinet or laboratory to be interpreted and can later dump them on the maps.
Surveyors who are professionals who deal with the topography normally work with two-dimensional systems on shafts x e and, in the meantime, the height is a third dimension. The elevation of the terrain on topographic maps is reflected through lines that connect with a datum plane and that are known as level curves.
On the other hand, total station is a device that allows the measurement of horizontal, vertical angles and distances. Once the coordinates of the place in which the station was installed are known may be determined the three-dimensional coordinates of any point that is measured. Once the coordinates are already processed the surveyor can start to represent graphically the surface details.

Article contributed by the team of collaborators.

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