spline by points 中文意思是什麼
spline by points
解釋
根據指定點創建樣條曲線-
A cardinal spline is defined by an array of points and a tension parameter the curve passes smoothly through each point in the array, and the tension parameter influences the way the curve bends
基數樣條由一系列點和張力參數定義，即曲線平滑地通過系列中的每個點，張力參數影響曲線的彎曲方式。 -
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。 -
In view of the fact that the genetic algorithm of stochastic programming based on random simulated technology has succeed greatly, this paper points out that changing parameters of genetic algorithm can obtain a sequence of optimum values of goal function. taking these genetic algorithm values as sampling data, we can get fitting optimum function by using multivariate spline regression and get the lipschitzs constant of the fitting optimum function. so for any chance constrained programming problem, we can get its interval estimate
鑒于基於隨機模擬技術的遺傳演算法在求解隨機規劃問題上的優越性，本文指出，改變遺傳演算法的參數條件，在此基礎上求得機會約束規劃的若干個最優值，以這些最優值為樣本點，利用多元樣條回歸，擬合得到最優值函數，進而求出最優值函數的lipschitzs常數，從而對于任一機會約束規劃問題，都可以得到它的一個區間估計。 -
The distribution map produced by spline interpolation is smooth, and spline method has good interpolation effect with rapid run speed in case of dense sampling points
樣條法插值獲得的等值線分布圖比較光滑，當采樣點比較密集時，具有較好的插值效果，運算速度也較快。 -
Studying on simplification algorithms of " points cloud " data, putting forward three kinds of simplification algorithms of " points cloud " data according to the point number of data set after simplification and the density of data set and the uniformation of curvature change at control point by b spline curve interporlation
簡化「點雲」數據演算法的研究，提出了按指定數據集點的個數、按數據集點的密度閾值和按b樣條曲線插值型值點處曲率變化是否均勻簡化「點雲」數據的三種演算法。 3 -
The points of internal gear are fitted into spline curve by spline function, then the internal gear is manufactured in nc wire - cut machine. the process of manufacturing the internal gear in wire - cut machine is studied. compared to the traditional method of manufacturing in special machine this process is a breakthrough
利用樣條函數對中心輪內齒圈齒形點進行擬合，利用軌跡法在數控線切割機床（ bkdc ）上實現了中心輪內齒圈齒形的加工，並對在數控機床上加工的工藝進行了研究。 -
The control points of the rational spline to be constructed are computed simply by the vertices of the given polygon
在演算法中，所有的有理樣條曲線的控制點可以通過對多邊形的頂點簡單計算產生。 -
The control points of the rational spline to be constructed were computed simply by the vertices of the given polygon
在演算法中，所有的有理樣條曲線的控制點可以通過對多邊形的頂點簡單計算產生。 -
Firstly, we determined the position of energy edge in every trace by using edge detection algorithm, secondly, we divided all the edge points into wrong points and correct points, then calculated the value of wrong points by spline interpolation
為此，從初至波的特點出發，提出了單道數據邊界檢測和樣條插值相結合進行初至波自動拾取的方法。 -
4. the author particularly discussed the drafting method of involute, using spline which is defined by many points to construct involute. compared with other involute defined by arc or straight line segment, the precision of this kind of involute is improved evidently
4 .對齒輪漸開線的造型方法進行了詳細的分析研究，用多點定義的spline線來構造漸開線，與用圓弧或直線段擬合方法相比，漸開線的精度得到顯著提高。
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