边界表示 meaning in English
boundary representation
Examples
- The seven forms used to de - pict body in compu ter memory are analyzed and paralleled . the bo - rder expression is utilized as the primary data structure in th - is model system
分析并对比了计算机内部形体表示的七种常用形式，采用了边界表示作为该系统的核心表示形式，并选用了辐射边结构作为核心数据结构。 - This thesis develops research on efficiency issue for reconstruction based on the b - rep method . it primarily resolves low efficiency issue of judging and removing pseudo elements and decision - making
本文针对基于边界表示方法的二维视图重建三维实体重建过程中存在的效率问题展开研究,主要解决了假元判定与删除算法和决策求解算法的低效率问题。 - Under opengl environment , we use four - side grids to reconstruct a worm surface and gain a solid modeling of worm . under the computer virtual reality environment , we simulate the manufacturing process of dual generating method
在此基础上，在opengl编程环境下，以四边形网格构造蜗杆理论型面，以边界表示法中的半边数据结构表达蜗杆实体，获得蜗杆的三维实体模型及其型面数据。 - An accelerated direct rendering algorith of isosurface for 3d data sets is presented . the problem for calculating the intersections of the ray and the bounding cells pierced by the isosurface can be viewed as the problem of sampling alonga 3d discreteray . it is shown that the algorithm is better on memory requirement and speed than traditional algorithm through its realization on pc
提出等值面直接显示算法，充分利用数据空间的相关性，把体素分为边界体素和内部体素，并采用体数据边界表示法，降低了内存.绘制等值面时，将视线与边界体素的求交运算转化为对离散视线上点的扫描，避开对整个体数据空间的遍历，从而减少了计算量。 - The key techniques for reverse engineering based on ct image are introduced . 3d reconstructed surface model does n ' t possess full geometry and topology information as solid geometry model . this dissertation presents an algorithm for rebuilding solid model from triangulated patch surface mod
介绍了基于ct图象反求的主要技术；针对重建三维表面模型不具备象实体几何模型的数据那样的完备信息的特点，提出一种基于ct图象的反求技术的实体几何造型方法，将重建模型转换为边界表示的实体模型，并将其作为本研究所开发的特征造型系统3dmodeler中的一种反求工程实体造型手段。