船体结构实体造型开发研究

将计算机图形学研究领域中的三维造型技术应用到船舶工程设计与建造中 ,提出开发船体结构三维造型软件的基本思想、方法和步骤 .在 MS Windows和 Visual C+ +平台上 ,基于边界表示法的 Parasolid图形内核 ,研究组合调用内核库函数的最佳方法 ;以 Open GL作为图形软件接口 ,创建接近光线跟踪的高质量静止或动画的三维彩色图像 ,对三维实体进行定位、色彩、质地、照光、旋转、缩放等功能的研究 ;通过对实船的局部结构三维表达结果分析 ,证明了该方法的先进性和工程应用性 .

Development of ship structure solid modeling

D solid modeling technology is a complex research direction in the region of computer graphics. It is the goal and work of this paper to develop a 3D solid model of ship local structure based on Parasolid which is used as the graphical kernel in the environment of Visual C ++ and OpenGL. OpenGL is used as a graphical function library to build static or active 3D colorful graphics. In the environment of OpenGL, this paper realizes the functions of 3D modeling including transformation, color, texture, lighting, rotate, zoom, etc. And then Parasolid is used as the kernel of the graphical system to build and manipulate the 3D solid model. The important point of this paper is calling the Parasolid kernel function library to developing software to describe the 3D solid model of ship structure. Some examples given at the end of the paper have tested the validity of the model.