The Practical Research On 3-D Scene In The Ship Handling Simulator

Ship handling simulator is a typical kind of Man-ln-the-Loop simulation. Being one of the loops in the system, the trainee makes decisions according to the information acquired from the simulation system. Therefore, the visual system should provide enough detailed information.In this thesis, the author makes a detailed discussion on the modeling method of ownship's visual model, and the drawing methods of ownship's bow image which applied to two different hardware and software platforms. He also proposes the processing method of ownship when illuminated by lights at night; analyses the error of displaying ownship visual model resulted from the error of eyepoint position and its correction as well. A Mip-Map texture anti-aliasing method is also applied after a good analysis of the texture aliasing of ownship's visual model.In the second part of this thesis, the author brings up the principle of telescope and its realizing method in the visual system. A solution to correctly display the LOD objects in the visual system while applying telescope is proposed as well.The third and the last part of the thesis deals with the viewpoint shift function in the visual system. As a result of the function, the viewpoint can vary from the center of the bridge to both wings of the bridge, and its direction varies as well.