| 1. | In detailed feasibility checking , the problem of interference avoidance is solved by transforming them to the test of relation between tool surface and triangular patches 在详细检测中,通过检测刀具与三角片之间是否发生干涉来最后确定刀具与曲面的干涉结果。 |
| 2. | The oriented rp 3d - reconstruction method has been studied in the paper , with the focus on the bone ct image processing method and surface reconstruction with triangular facet 本文研究了面向rp的骨骼三维重构方法,重点研究了其中的ct图象处理算法和三角片表面重构算法。 |
| 3. | We using the triangulation constructed from the point ' s adjacent field , which is the nearest to the original local surface , to compute the point ' s normal . it can get a good result 本文采用了与局部曲面片最接近的由点的邻域所构造的三角片来近似求点的法向量的方法,得到了较好的实验结果。 |
| 4. | The approach includes ( 1 ) obtaining the cutter - location data based on parameter curves . ( 2 ) tessellation of the trim nurbs surfaces into triangles . ( 3 ) interference detection and tool - position correction 在曲面的参数线上规划刀位轨迹,将曲面用三角片离散逼近,利用刀具曲面与三角片的几何相关性进行干涉检查及刀位修正。 |
| 5. | All narrow triangles can be elimated by adaptive subdivision and edge collapsing schemes . an adaptive remeshing algorithm is presented . in the algorithm , the original mesh is resampled and the base mesh is recursively refined 首先对原始网格进行自适应细分,接下来通过边删除操作来简化细分后三角网格模型,彻底清除模型中的所有劣质三角片。 |
| 6. | The traditional way of rendering an image is to use a vertex and a polygon to store the information . as the rendering unit is polygon , more polygons will be needed when a smooth surface is rendered 它抛弃了传统的三角片表示方法,只记录点的信息,由这些点的信息直接重构出最终的图像,从而为解决大量三维采样数据的快速绘制处理提供了一条新的路径。 |
| 7. | A relationship of vertex , edge and facet of a triangulation network was discussed , and a three - dimensional model was given . and several methods of rapid prototyping manufacturing are also compared and analyzed , in order to get a proper way in engineering real application 在分析stl格式文件的基础上,本文给出了三角网格中顶点v棱边e三角片f的关系三维模型,提出了它们之间的关系式r ( v , e , f ) 。 |
| 8. | Because this algorithm makes the small triangular face normal to be a byproduct of calculating point of intersection , it does not need other time to calculate it . so it is possible to display high quality realistic pictures smoothly on microcomputer 尤其是该算法计算切削后生成的小三角片的法向量成为计算交点的一个副产品,几乎不再占用额外的计算时间,为做到平滑地动态显示高质量的真实感图形提供了可能。 |
| 9. | Shear properties in the plane of the panel ( interlaminar shear ) duplicate the kind of shear stress encountered in such glued structural assemblies as structural sandwiches and adjacent to gluelines between ? anges and webs in box - beams and i - beams and gusset plates in trusses 面板表面剪切性能(层间剪切) ,在遇到粘合结构组合例如结构夹层以及靠近于边缘,箱束网和构架盘上三角片间的粘合线时,使剪切应力双倍 |
| 10. | The techniques of smoothing , feature enhancing and optimization of triangle facet ' s shape are investigated systematically in this paper . based on modification of laplacian operator and mean curvature technique , an adaptive regularizing and smoothing mesh algorithm is put forward 作者在研究消化所能收集到的国内外相关资料的基础上,对三角网格模型的外形光顺、特征修复和三角片优化等技术进行了深入研究。 |