1) cylindrical projection
圆柱映射
1.
First we use multiresolution to construct seamless texture map, and unwrap the cylindrical projection of a general model mesh.
先用多分辨率技术构造纹理无缝拼接图 ,然后把三维网格模型投影到圆柱面上并展开 ,根据二维图像变形技术中特征指定算法的数学思想 ,将匹配公式进行一定的改进后应用于模型网格点的适配 ,在作了一定假设后推导逆向圆柱映射的计算公式 ,将适配后的柱面网格映射回去 ,最后进行纹理映射生成真实感的特定人脸三维模型。
2) inverse cylindrical projection
逆向圆柱映射
3) The mapping cylinder
映射柱
4) circle map
圆周映射
1.
Standard circle map based on circuit model and its experiment study;
基于电路模型的标准圆周映射及其实验研究
2.
In this note,we mainly prove that the following conclusion is true not only for a circte map with a periodic point but also for a general circle map f.
我们证明以下结论不仅对含有周期点的圆周映射成立 ,也对一般的圆周映射f成立 ,这个结论是R(f) Λ(R(f) ) Λ(Λ(f) ) Λ(Ω(f) ) (R(f) ) Λ(f) Ω(f) 。
5) circle mapping
圆映射
6) Wafer Mapping
晶圆映射
补充资料：55°圆柱管螺纹的型式和尺寸
| 螺纹代号 | 基本尺寸 | 大径 mm d=D | 螺距 mm p | 每英寸牙数 tpi | 中径 mm d2=D2 | 小径 外螺纹 d3 | 牙型高度 H1 | 底孔尺寸 mm | |
| G 1/8 | 1/8＂ | 9.728 | 0.907 | 28 | 9.147 | 8.566 | 0.581 | 8.7 | |
| G 1/4 | 1/4＂ | 13.157 | 1.337 | 19 | 12.301 | 11.445 | 0.856 | 11.6 | |
| G 3/8 | 3/8＂ | 16.662 | 1.337 | 19 | 15.806 | 14.95 | 0.856 | 15 | |
| G 1/2 | 1/2＂ | 20.955 | 1.814 | 14 | 19.793 | 18.631 | 1.162 | 19 | |
| G 5/8 | 5/8＂ | 22.911 | 1.814 | 14 | 21.749 | 20.587 | 1.162 | 20.75 | |
| G 3/4 | 3/4＂ | 26.441 | 1.814 | 14 | 25.279 | 24.117 | 1.162 | 24.5 | |
| G 7/8 | 7/8＂ | 30.201 | 1.814 | 14 | 29.039 | 27.877 | 1.162 | 28 | |
| G 1 | 1＂ | 33.249 | 2.309 | 11 | 31.77 | 30.291 | 1.479 | 30.5 | |
| G 1 1/8 | 1 1/8＂ | 37.897 | 2.309 | 11 | 36.418 | 34.939 | 1.479 | 35 | |
| G 1 1/4 | 1 1/4＂ | 41.91 | 2.309 | 11 | 40.431 | 38.952 | 1.479 | 39.5 | |
| G 1 3/8 | 1 3/8＂ | 44.323 | 2.309 | 11 | 42.844 | 41.365 | 1.479 | 41.5 | |
| G 1 1/2 | 1 1/2＂ | 47.803 | 2.309 | 11 | 46.324 | 44.845 | 1.479 | 45 | |
| G 1 3/4 | 1 3/4＂ | 53.746 | 2.309 | 11 | 52.267 | 50.788 | 1.479 | 51 | |
| G 2 | 2＂ | 59.614 | 2.309 | 11 | 58.135 | 56.656 | 1.479 | 57 | |
| G 2 1/4 | 2 1/4＂ | 65.71 | 2.309 | 11 | 64.231 | 62.752 | 1.479 | 63 | |
| G 2 1/2 | 2 1/2＂ | 75.184 | 2.309 | 11 | 73.705 | 72.226 | 1.479 | 72.5 | |
| G 2 3/4 | 2 3/4＂ | 81.534 | 2.309 | 11 | 80.055 | 78.576 | 1.479 | 79 | |
| G 3 | 3＂ | 87.884 | 2.309 | 11 | 86.405 | 84.926 | 1.479 | 85.5 | |
| G 3 1/4 | 3 1/4＂ | 93.98 | 2.309 | 11 | 92.501 | 91.022 | 1.479 | 91 | |
| G 3 1/2 | 3 1/2＂ | 100.33 | 2.309 | 11 | 98.351 | 97.372 | 1.479 | 97.75 | |
| G 3 3/4 | 3 3/4＂ | 106.68 | 2.309 | 11 | 105.201 | 103.722 | 1.479 | 104 | |
| G 4 | 4＂ | 113.03 | 2.309 | 11 | 111.55 | 110.072 | 1.479 | 110.5 | |
| G 4 1/2 | 4 1/2＂ | 125.73 | 2.309 | 11 | 124.251 | 122.772 | 1.479 | 123 | |
| G 5 | 5＂ | 138.43 | 2.309 | 11 | 136.951 | 135.472 | 1.479 | 136 | |
| G 5 1/2 | 5 1/2＂ | 151.13 | 2.309 | 11 | 149.651 | 148.172 | 1.479 | 148.5 | |
| G 6 | 6＂ | 163.83 | 2.309 | 11 | 162.351 | 160.872 | 1.479 | 161.5 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条