The symmetry no longer existed when the projection of light source is not located in the symmetry center of rectangular aperture.

當(dāng)光源的孔面投影不在矩孔中心時(shí)光強(qiáng)分布的對(duì)稱性不復(fù)存在自拍偷拍12。

"F" is the distance between point P' and the tangent to the concave area in the maximum point of concavity measured in projection view on the plane of symmetry Y.

"f"為在對(duì)稱面Y上的投影視圖上測(cè)量的點(diǎn)P'和最大凹狀點(diǎn)上的對(duì)凹入?yún)^(qū)域的切線之間的距離欧美ssxx。

With the constraints of these feature points, perspective projection, coplanarity and colinearity, the curved surfaces can be recovered by minimizing the linearly constrained quadric objective function.

把特征點(diǎn)的位置激情图片久久久、共面精品国产A∨一区二区三区、共線zz12国产小视频你懂的、透視投影等作為約束国外A片无码毛片免费视频，通過最小化線性約束下的二次目標(biāo)函數(shù)實(shí)現(xiàn)曲面重建。

A projection method is used to smooth out start and end points of the ruling line sets. With predefined Euclidean 6 space distances, the problem of ruled surface approximation from line sets in Euclidean 3 space can be converted into a least square B-spline curve fitting issue in Euclidean 6 space.

利用"投影"光順法對(duì)齊直母線段族首末端點(diǎn)又粗又长又色又爽视频，再通過定義歐氏6空間下的距離函數(shù)国产日韩视频合集一区，將歐氏3空間下的直線族逼近直紋面問題轉(zhuǎn)換成歐氏6空間下B樣條曲線最小二乘擬合問題三级电影网址。

In order to obtain a natural effect, the cylindrical projection system was used.

為了獲得自然的效果，采用了柱面投影方法構(gòu)造系統(tǒng)一级大香一级大香香蕉。

We develop a control unit to accept and recognize the user inputs in forms of trajectories of the pointed point based on finite state machine and neural network.

在系統(tǒng)環(huán)境中自拍偷拍网页，我們利用兩重建平面與投影平面三面共點(diǎn)的特性，便可重建出指向點(diǎn)在真實(shí)世界中的位置一级片高清无码在线观看不卡。

In the lab course of experimentation, students will learn the method of polar stereographic projection to analyze the occurrence of foliation and lineation, the analysis methods and steps of geological map, the techniques of drawing geological maps and structural maps.

通過實(shí)驗(yàn)課的學(xué)習(xí)三级黄毛，學(xué)生學(xué)會(huì)用極射赤平投影的方法測(cè)定面、線構(gòu)造的產(chǎn)狀69毛片免费视频观看，學(xué)會(huì)閱讀视频91自拍、分析地質(zhì)圖的方法和步驟，掌握繪制地質(zhì)国产丝袜福利在线、構(gòu)造圖件的技術(shù)和方法xx性爱视屏。

According to the feature of drawing crystal shape from gnomonic projection,a data structure (the single 3 table chain structure )is presented.

根據(jù)極平投影繪晶體形態(tài)的特點(diǎn)，建立了一種數(shù)據(jù)結(jié)構(gòu)———單鏈三表結(jié)構(gòu)日韩精品激情视频网站免费观看，此結(jié)構(gòu)由面表在线观看中文字幕在线、線表、點(diǎn)表組成亚洲精品自拍私拍，能充分反映晶體形態(tài)的拓?fù)湫畔⒑蛶缀涡畔?7精品视频在线观看免费专区，并在此基礎(chǔ)上設(shè)計(jì)了一種適合于變換和消隱處理的數(shù)據(jù)結(jié)

Being formed by linear grain curved surface, helicoid can be expressed by a group of simple lines. Writing two equations of inside and outside of the helicoid, getting any one of simple line′s equation and from which getting the coordinations of two end points by projection transformation, the CAD system of helicoid is achieved. It...

由于螺旋面為直紋曲面，因此可用它的一組素線表示国内嫖妓无码视频在线观看，用極坐標(biāo)的形式寫出內(nèi)外兩條螺旋線的方程午夜福利A片1000无码免费，求出任一素線的方程，并通過投影變換求得素線上兩端點(diǎn)的坐標(biāo)矩陣优优视频国内A级毛片，進(jìn)而設(shè)計(jì)出螺旋面的CAD系統(tǒng)亚州A√，并將其應(yīng)用于實(shí)踐，為設(shè)計(jì)優(yōu)化決策提供有力的證據(jù)能看的黄色网站网址。

By constructing a sphere hexagonal grid system based on the Truncated Icosahedrons Projection, this paper focuses on the study of the address coding mechanism of the sphere hexagonal grids, including the hierarchy coding schemes, the study of the positional relations among the grid units and the mutual conversion between the address codes of the grid units and the geographical coordinates.

本文通過構(gòu)建基于截頂正二十面體投影的球面六邊形網(wǎng)格系統(tǒng)黄软件在线观看，對(duì)球面六邊形網(wǎng)格的地址編碼機(jī)制進(jìn)行了重點(diǎn)研究，包括網(wǎng)格的層次編碼方案国产女主播精品在线播放、網(wǎng)格單元位置關(guān)系研究和網(wǎng)格單元地址碼與地理坐標(biāo)之間的相互轉(zhuǎn)換。