求交运算 meaning in English
cap
Examples
- An efficient rejection test for ray triangle mesh intersection
一种用于光线与三角形网格求交运算的有效剔除算法 - Then curvatures and highlight lines are used to estimate fairness of curve and surface respectively
在船体曲面造型设计中，常用到曲面与平面的求交运算。 - The integral area ' s shape can be arbitrary , its shape is the intersecting part of physical grid and mathematics grid , so , the generation of integral area of unit is an intersection operation of two polygons
摘要由数学覆盖和物理网格形成的流形单元的积分区域可以有任意形状，其形状为物理网格和数学网格的相交部分，所以流形单元积分区域的形成为两个多边形（数学网格和物理网格）的求交运算。 - In some time - critical situation , continuous ssi is computation bottleneck of some solid modeling system . conventional approach for solving continuous ssi often uses intersection algorithm iteratively without taking the characteristic of the surface into account to simplify computation . the dissertation analyzes the intersect curve structure of continue surface , from the point of intersect curve ' s evolution , it describes the relationship between topology of offset surface intersect curve and topology transmit point ( ttp )
等距曲面和运动曲面在cad cam领域中有着重要的应用，在一些时间敏感场合例如数控加工动态仿真，等距曲面和运动曲面等连续变化曲面求交运算已成为这些系统的计算瓶颈，连续变化曲面求交问题的通常解法是采用曲面求交算法反复迭代计算交线，没有考虑连续变化曲面交线之间的相似性进行求交简化，效率上一直不能有很大的提高。 - 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。