contour of a line 中文意思是什麼
contour of a line
解釋
譜線輪廓-
A new type of mortar pump was designed, namely the commutative piston mortar pump, the spirality line of equal velocity was regarded as the contour line of the cam working, and the cam mechanism was analyzed of the movements
提出了一種新型的砂漿泵? ?互逆活塞式砂漿泵，採用等速螺線作為凸輪工作段廓線，並進行了運動分析。 -
Firstly, the structures and properties of abs resin, a kind of material for fdm process, are introduced, and theological properties of melted abs filament during extrusion from fdm ' s nozzle are studied in viscosity and elasticity, the research results can provide theoretical guidance for establishing the compensation model of ideal contour line
本論文首先從粘性和彈性兩個方面闡述和研究了熔融態abs熔體從噴頭擠出過程中的流變性能，流變性能的分析和研究不僅有助於更好地理解fdm工藝的擠出絲過程，而且為建立理想輪廓線的補償模型提供了理論依據。 -
The model of vertical eco - landscape was designed according to the slope and contour line : in the top land over 25, trees were planted to form a water - conserving forest ; in the slope land between 15 and 25, peach trees were planted ; between 5 and 15, loquats trees were planted ; less than 5, special species of fruit trees, melons and vegetables were planted ; the bottom field was characterized with water area of " rice and fish ", " lotus and fish "
其垂直生態景觀模式按坡度和等高線布置：在坡度大於25的山坡頂形成水保林木區，坡上15 25的陡坡種植桃樹，坡中5 15的斜坡種植枇杷，坡下小於5的緩坡地帶種植特種水果、瓜類及蔬菜，坡底形成「稻魚」和「藕魚」特色水域區。 -
Meanwhile, we built models of data collection, soeciai point ' s altitude handling, grid point ' s altitude handling, designed a method which can rapidly collect and process terrain data by descripting the contour line with mouse, and designed corresponding software by c + + builder5. 0. therefore, military digital maps can be facilitly and quickly made and computer - aided terrain analysis can be realized, thus the system can effectively help the commanders or staffs make their decision
同時建立了數據採集、特殊點高程處理、網路交點高程處理等模型，設計了一種可通過鼠標器描繪等高線而實現地形數據的快速採集、處理和賦值的方法，運用c + + builder5 . 0設計了相應的軟體，能夠方便、快捷地生成數字化軍用地圖並進行計算機輔助分析地形，從而能夠有效地幫助指揮員或者參謀人員進行決策。 -
This process is as follows : firstly, the data of different section contour and of section line have been obtained by reverse - engineering ; secondly, non - uniform b - spline approximation algorithm is used to fit the discrete data ; then the data have been optimized and reduced by adopting adaptive sampling of key points of the fitted curve based on vertical distance, sequently the adaptive sampling data is transformed into the format of the. ibl file of the famous 3 - d design software pro / e. therefore we reconstruct the surface and a model is generated ; lastly, the effectiveness of the adopted algorithm and modeling approach are demonstrated by the experiments
建模型的過程中，首先運用逆向工程測量方法，獲得曲面物體上不同截面輪廓線的測量數據點列，接著對測量數據點進行平滑處理，用最小二乘法求解基於數據點列的控制多邊形，以非均勻三次b樣條曲線擬合截面輪廓曲線；然後利用基於垂距的數據采樣演算法，對擬合曲線上的數據點進行重新采樣，達到優化數據點的分佈及減少描述曲線數據量的目的。 -
For problems whose objective function or constraint functions have sharp curves on their contour maps ( such as the rosenbrock ' s function which has banana shape contours ), monotonicity may cause a series of very small steps, causing a huge number of iteration to reach their solutions. by using the nonmonotone technique, we get the sequence of successful interative point which should make the objective function mono - tonically decreasing. hence, we use both trust region strategy and line search technique and make each iterate generate an acceptable trial step in interior feasible set as next interative point
我們利用非單調技術得到使目標函數非單調下降的迭代點，因為非單調克服高度非線性化函數的求解問題，從而避免了只使用單調搜索在「峽谷」現象局部最優解被卡的情況，我們用信賴域策略和非單調線搜索技術相結合的方法，使演算法產生的迭代步落在可行域內點，同時又在信賴域內滿足接受準則。 -
The dynamic response of the cam mechanism fan - out was found with the rule of sinusoid acceleration, and these establish the foundation of the design of the cam contour line, and provide a fire - new idea for the research of the mortar pump
通過正弦加速度運動規律得到了凸輪機構輸出端的動態響應，為凸輪廓線的沒計-奠定了基礎，為砂漿泵的研究提供了嶄新的思路。 -
The dimensional globoidal indexing cam mechanism, as a result of the steady movement, accurate, the transmission ceaseless and is suitable for high speed indexing and precise indexing. now it is the most ideal high speed precision indexing mechanism in the world, and it is being widely applied on each kind of automaton and the production line, this mechanisms prospect of application is broad, arouses the people enormous interest. but the examination of the globoidal indexing cam mechanism is a quite weak link, the manufacturers don ’ t give the examination because of the difficulty of the geometry shape error examination of the cam contour
空間弧面分度凸輪機構，由於運動平穩、準確、傳動無間隙而適用於高速分度和精密分度，是當今世界上最理想的高速精密分度機構，正被廣泛應用於各種自動機和生產線上，該機構應用前景廣闊，引起人們極大的興趣，而弧面分度凸輪機構的檢測是一個比較薄弱的環節，一般生產廠家由於凸輪輪廓幾何形狀誤差檢測困難而不予檢測，因此本試驗臺的研製具有極其重要的意義。 -
In our research, variation of contour line is used for describing the characteristics of image structure. using teacher images and machine learning method, an image direction classification model is built as a decision tree. test results argued the validity of this method
本課題使用圖像輪廓線向量特徵來反映圖像的構圖特徵，通過教師實例獲得用戶的方向分類概念，然後利用決策樹的學習建立分類模型，並且在此分類模型的基礎上實現了一個圖像正立方向判別系統。 -
In the first part of this thesis, the method of data collection for building a 3d scene based on a planar vector map is studied. to the most difficult problem in data collection : the evaluation of contour line, a suit of effective automatic assisting method is advanced, which can remarkably shorten the process period and improve the efficiency of spatial data collection. the main idea of this method is " control point congregating automatically and close control point cooperating "
本文主要研究了基於二維矢量圖如何獲取構建三維場景所需的空間數據，包括地形、地物的二維數據採集與三維建模方法，並針對數據獲取中的主要難題，即等高線高程賦值問題，提出了一種基於高程式控制制點自動聚集、相近控制點協作的自動處理方法，顯著縮短空間數據獲取的處理周期。 -
Following are detailed steps of this system : in the segmentation section, we use three successive frames to detect the motion infomation of the pictures, by using blockmatching algorithm in two successive frames twice, we can get two pictures composed of motion blocks of the moving object, then we find out the common motion blocks of the two pictures, experiments prove these blocks approximately compose the moving object. after getting the motion blocks, we calculate the center of these blocks as the center of the moving object, thus we can use the center point as the origin, construct n straight linesjoining the boundry of the image and the center. on each line, we can find out a proper point near the object contour according to some criteria, then we use these n points as the initial points of the snake and let the snake converge on the object contour, thus finish the segmentation of the moving object
本方案的實現過程為：分割部分：對運動目標的前後三幀進行兩次塊匹配運動檢測，通過找出兩個匹配結果中運動圖像塊的公共部分，獲得組成運動目標的圖像塊；求出運動目標圖像塊的形心作為運動目標的中心，以此中心為端點，向四周發散出角度間隔為的n條射線，射線的另一端終止於圖像的邊緣；在每條射線上按照一定的準則（點的梯度和與目標中心的距離在一定閾值范圍內）找出n個初始輪廓點；以這些初始輪廓點作為主動輪廓模型（ snake ）的初始點，用改進的貪婪演算法使snake收斂到待分割的運動目標輪廓上。 -
It is important to improve efficiency of curve intesection algorithm. in addition, a lot of curves are composed of arcs and line segments in engineering, such as the contour lines in machining fields
這是一個一般性方法，由於在離散的過程中通常會產生大量的小直線段，使得它的求交效率不高，因此提高求交效率是曲線求交方法研究中的一個關鍵問題。 -
A method for complicated planar contour fitting is presented : 1 ) first all the data points used in the contour are ordered ; 2 ) after calculating the curvature of each contour point, the points with bigger curvature are taken as feature points ; 3 ) the contour is segmented by feature points ; 4 ) the contour is globally constructed through determining the segments types ( line or circle ) and the constraints with the neighbor segments ? the generation of skin surface is realized with the interface of caa
研究了基於點雲數據的復雜截面線生成技術： 1 ）對輪廓數據點進行排序； 2 ）近似計算輪廓數據點處的曲率，取出曲率較大的數據點，並定義取出的數據點為特徵點； 3 ）以特徵點為分界點對輪廓數據點進行分段： 4 ）判斷分段數據點確定的曲線類型和各分段曲線之間的約束關系，進行基於約束的分段平面輪廓曲線整體擬合。 -
2 the line integral of the tangential component of the magnetic field intensity h around a closed contour c is equal to the sum of currents passing through any surface s linking that contour
沿著一個閉合迴路c的磁場強度的線積分等於穿過任何以此迴路為邊界的曲面的電流之和。 -
According to the rheological properties of melted abs filament during extrusion from fdm ' s nozzle, on the basis of research on extruded filament section shape, the compensation model of ideal contour line is established, and a new technique for compensating inner or outer contour line of workpiece is put forward, which should depend on the real width of extruded filament ( instead of nozzle radius ) and the real dimensional shrinkage of workpiece
根據abs絲從噴頭擠出過程中的流變性能，在研究fdm工藝噴頭擠出絲截面形狀的基礎上，建立了理想輪廓線的補償模型，並提出了根據擠出絲實際寬度（而非噴嘴孔直徑）和零件尺寸實際收縮量補償零件內、外輪廓的新方法，驗證試驗結果表明該補償模型和補償方法正確可行。
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