3D laser scanning services are those services provided by businesses that specialize in offering laser scanning. Laser scanning services are also referred to as laser surveying solutions in companies whose area of business is in architecture, construction, engineering, reverse engineering, entertainment, telecommunication, quality control, manufacturing, law enforcement and historic preservation. Laser survey and utility mapping London services have a wide range of clientele because any company needs to survey spatial data accurately so that they can carry out a task, manufacture a product or make sure that the quality of an existing system can benefit from the laser survey services. Traditional surveying methods that utilize GPS technology can take a few weeks to get the results. The results that these methods produce are not accurate, and this makes laser surveying better than the traditional surveying methods. Laser survey services produce accurate results in one surveying session which means that the cost of the surveying process is less thus the surveyor does not have to make a huge investment. Check out www.gwaliasurveyors.co.uk to get started.
A laser scanner records spatial data, sends it to a PC which is part of the laser scanning unit. After recording the data, it is transferred to a computer where the client can have access to it through an interface that is very user-friendly. The data is then repurposed for many tasks. In many cases, the data is repurposed into models such as the surface model, the polygon model or the solid CAD model. Polygon mesh models stand for survey data as a curved surface that is made of various flat surfaces. They are not easily editable and are normally utilized for visualization. Surface models utilize curved surface patches in modeling a particular shape. You can edit surface models more easily than polygon mesh models. However, as their name suggests, you can only edit them at their surface, which makes them perfect for modeling artistic and organic shapes. Solid CAD models are the easiest to edit and include design intent. For instance, a solid CAD model can be used in making lug nut concentric using a drum hole, which cannot be done just by modeling the surface of a lug nut.
The type of scanner used in laser surveying is dependent on the subject matter. For example, when manufacturing smaller items, contact scanners are often used. However, for larger objects and smaller objects that may be prone to damage by the probing, non-contact active scanners are frequently used. These scanners used in surveying objects can be very different.
Visit http://www.ehow.com/about_5682014_land-survey-done_.html for more details.