Highway Tunnel-aided Design System

With the rapid development of the tunnel project, CAD design drawings in the application of the amount is growing. But the use of CAD design unit is still drawing a large number of professional staff based mechanical drawing, which has been unable to meet the growing needs of design capacity. To this end, intelligent human-computer interactive process of drawing a tunnel urgent need for graphic design.This program is designed to tunnel object. Cad software for existing tunnels there flexibility and low efficiency, the system of the tunnel cad graphics data structure and a typical tunnel design constraints to achieve the human-computer interactive graphics, drag the mouse to drag and dynamic real-time modified technique, is generated when the drawings are not satisfied after the need to modify some dimensions, dimensions and other parts of quantities of data automatically changes accordingly, thus greatly improve design efficiency and flexibility of the system availability, and man-made to avoid duplication of much Error, the designers drawing from the work of a large number of heavy freed to improve the design speed and reduce the amount of information storage, giving designers a great convenience.