This article focuses on the line-line, line-region and region-region topological relations algorithm, which come down to the same question: whether there are intersections between line and line. The sweep-line algorithm was studied by many people, but has some deficiencies to be improved, in order to handle some special cases and increase program efficiency. My works as follows: rectangular envelope to reduce executive times , vector cross multiplication to determine intersection between line and line, coordinates and slope method to deal with some special cases. C program examples are showed together.(5) Finally, to prove capability and efficiency of the model and calculation method, some test systems are developed. For example, complex spatial topological relation query, parcels' exact area with the area of linear object reduced in land use, quality inspection to cadastral data according to topological rule, spatio-temporal change query of cadastral data.

將線線、線面、面面之間的拓撲關(guān)系實現(xiàn)的算法歸結(jié)為線與線之間求交的基本問題；為處理一些特殊的拓撲關(guān)系情況一级黄色片操逼，提高掃描線算法的效率4438ⅹ亚洲全国最大色丁香，探討了包絡(luò)矩形粗濾、判斷線線是否相交的矢量叉乘法激情狠狠文学网、線節(jié)點重合或共線的斜率坐標判斷法等改進方法；同時還設(shè)計了一種新的節(jié)點微小圓求交的算法激情说，可應(yīng)用于圖斑與線狀地物細分拓撲關(guān)系及地類面積的計算久久99视频只有这里精品；（5）本文設(shè)計了實驗系統(tǒng)国内精品免费一二三区三，包括復(fù)雜對象的拓撲關(guān)系表達與計算程序国产一级黄片不卡免费视频、圖斑地類面積的計算程序、基于空間拓撲關(guān)系規(guī)則的地籍數(shù)據(jù)庫質(zhì)量檢查功能91免费免费国产在线观看，以及時空拓撲關(guān)系和變化語義分析等原型，驗證了拓撲關(guān)系表達模型和計算方法的可行性和實用性免费看涩涩的网站h。

The results indicated that the radius vector of spinal canal is still a better index to diagnose central LSS, there is important value for the spinal cross-sectional area and thecal sac area.

研究發(fā)現(xiàn)椎管徑矢仍是診斷中央椎管狹窄的良好指標，椎管面積和硬膜囊面積也具有重要價值黑人一级a毛片免费视频观看。

The measured indexes include 10 members: the radius vector of sagittal spinal canal, the interligamentous diameter, the spinal canal cross-sectional area, the thecal sac cross-sectional area.

測量指標包括：矢狀位椎管徑矢www.18黄色视频在线观看、韌帶間徑、椎管面積亚洲一区色图小说、硬膜囊面積。

This paper expoles an algorithm about dearing surface defects detection by Support Vector Machines and principal component analysis that is the new branch of machine learning, in which the defective area and non-defective area are treated as two different textures and are sampled respectively to be learned, in order to reduce dimension, the image data can be processed by PCA.

提出了一種基于支持支持向量機和主成分分析的軸承表面缺陷檢測算法欧美性爱日逼，該算法把軸承中的非缺陷區(qū)域和缺陷區(qū)域分別看作兩種不同的紋理模式99爱精品1，先利用主成分分析法對圖像進行降維處理欧美口交网站，然后用支持向量機方法對降維后的樣本采樣學習日韩无码专区天美传媒，然后進行分類判斷。

Anopheles dirus is the main vector of Plasmodium falciparum and plasmodium vivax in the area of Southeast Asia and the southern mountain area of China, especially in Hainan, Yunnan and Guangxi provinces.

大劣按蚊是東南亞和我國南方山區(qū)欧美五区，特別是海南和云南及廣西地區(qū)主要的瘧疾媒介，它主要傳播惡性瘧原蟲和間日瘧原蟲在线看中文字幕。

By superposing the vector of residential area with boundary of counties, the residential area A(subscript m of every district is calculated.

在模擬結(jié)果的基礎(chǔ)上估算鄉(xiāng)鎮(zhèn)級人口婷婷激情偷拍自慰，對比分析鄉(xiāng)鎮(zhèn)級估算人口和實際調(diào)查人口對結(jié)果進行驗證黄片av毛片伊人久久，對比數(shù)據(jù)表明該算法所得到的人口分布與實際人口分布較為相符日韩新片免费无码观看。

The building of Beijing,"deputy city center" to create decentralized ease the important function of the central area of the space vector, not only conform to the internationalization of the general trend of urban development, but also to ease the central area of Beijing city functions, optimizing the layout of urban space will play an important role.

建設(shè)北京&城市副中心&欧美首页，打造分散疏解中心區(qū)功能的重要空間載體，不僅順應(yīng)了國際化城市發(fā)展的大趨勢免费黄图视频A片，而且對疏解北京中心區(qū)城市功能曰本性l交片视频视频、優(yōu)化城市空間布局具有重要作用欧美肏。

In this equation, A is the area normal vector of face f directed from cell c0 to c1, ds is the distance between the cell centroids, and ~es is the unit normal vector in this direction.

在這個方程中A是從單元格c0 指向單元格c1 的表面f的標準向量圍成的面積尤物成人高清在线观看网址大全，ds 是兩個單元格重心間的距離人妻少妇视频一区中文字幕， s 是這個方向的單元向量。

Results The density of vector in the Olympic venues and the whole city declined.The public health goal of the Olympic Games,which was "effective control for the quantity and species of vector in the area related to Olympic Games" was realized completely.

結(jié)果 降低了奧運場館和全市病媒生物密度在线观看中文字幕2022，完全實現(xiàn)了&有效控制城市奧運涉及區(qū)的病媒生物種類及數(shù)量&的奧運公共衛(wèi)生保障目標一级二级三级黄色网站。

First, use OTSU method to make license plate image binarization, and then use genetic algorithm to map the entire license plate matching search feature. With a fitness function formed by the area character vector, the optimal locating parameter of the plate area was found.

先用最大類間方差法對車牌圖像進行二值化中国一级A一级a爱片免费免免，然后利用遺傳算法對全圖進行車牌特征匹配搜索，結(jié)合區(qū)域特征向量構(gòu)造的適應(yīng)度函數(shù)大BBBB高潮，最終找到車牌區(qū)域的最佳定位參量97超碰在线频。