控制多邊形 的英文怎麼說
中文拼音 [kòngzhìduōbiānxíng]
控制多邊形
英文
control polygon- 控 : 動詞1 (告發;控告) accuse; charge 2 (控制) control; dominate 3 (使容器口兒朝下 讓裏面的液體慢...
- 制 : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
- 邊 : 邊Ⅰ名詞1 (幾何圖形上夾成角的直線或圍成多邊形的線段) side; section 2 (邊緣) edge; margin; oute...
- 控制 : control; dominate; regulate; govern; manage; check; cybernate; manipulate; encraty; rule; rein; c...
-
This thesis primarily makes below the work of a few aspects : ( 1 ) the method that measuring and solution of the control point ' s coordinate, calculation of the point, solution of intersection with polygons, and calculation the quantity of ore reserves in a drawing file by computer technology ; ( 2 ) the theory and the method to draw the diagram of the equivalent line by establishing the abnormal triangle net, and ore blending with the diagram of the equivalent degree ' s line ; ( 3 ) the principle and method to automatically divide the ore, and the method to adjust to the quantity of ore and search the ore ' s information ; ( 4 ) adoption the line program to beg to solve the problem to ore blending, and establish the linear programming model and the simplification model with ore blending. ( 5 ) establish the control model with ore degree based on modem control theories
本論文主要完成了以下幾方面的工作: ( 1 )利用計算機技術直接在一張現狀圖中,實現了控制點的測量與求解、坐標展點計算、多邊形求交以及爆堆礦巖量的計算; ( 2 )提出了通過建立非規則三角網的方法來繪制等值線圖的理論和實現方法,通過等品位線圖指導配礦工作; ( 3 )提出了配礦塊段自動劃分的原理和方法,並在此基礎上實現礦塊礦量調整和礦塊信息查詢; ( 4 )採用線性規劃的方法求解配礦問題,建立了配礦問題的線性規劃模型和簡化模型; ( 5 )建立了基於現代控制理論的品位控制模型。We find out the ball basis of the space kn and define the h - ball curves with this ball basis
由這組基通過控制多邊形定義的曲線即是空間k _ n中的ball曲線By changing the value of the shape parameter, we can adjust the approaching degree of the curves to their control polygon
通過改變局部形狀參數的取值,可以調整曲線接近其控制多邊形的程度。This paper present a sufficient and necessary condition of constructing quintic ph curves and analyze the geometric meaning of the control polygon
本文給出了構成五次ph曲線的充要條件,分析了其控制多邊形的幾何意義。The main innovation of our method is that we only need construct polygonal mesh possessing simple symmetric properties on both sides of control polygon edges of interpolated curves, and do n ' t need modify the subdivision rules near the interpolation curves during the process of subdivision. thus the subdivision rules are simple. the process is convergent and the limit surface is c everywhere except a finite number of points
該方法的主要創新思想是,在被插值曲線的控制多邊形兩側構造具有簡單對稱性質的多邊形網格,而在細分過程中,則無須修改被插值曲線附近的細分規則,兇此細分演算法是簡單的,細分過程是收斂的,且最終的插值曲面除有限個點外是c ~ 2連續的。Its accomplishment is simple and intuitional. the main innovation of this method is that we only need construct a symmetric zonal mesh for each interpolated curve respectively and write appropriate knot spacings for mesh edges. then applying nurcc rules to the initial control polygonal mesh consisting of those symmetric zonal meshes can generate a surface that satisfies interpolation constrains
該方法的主要創新思想是在被插值曲線的控制多邊形兩側構造具有簡單對稱性質的四邊形網格,稱為對稱網格帶,但關鍵還在於對網格邊賦予適當的節點距,並對由這些對稱網格帶組成的初始控制網格應用非均勻有理catmull一clark細分規則,來生成滿足插值要求的曲面The parametric speed of the curve is firstly approximated by the bezier polynomial which takes the lengths of control polygon ' s edges of the direction curve of normal as bezier coordinates. then the corresponding geometric offset approximation algorithm is given. moreover, an offset approximation with high precision is obtained by degree elevation of the direction curve of normal
首先利用以法矢方向曲線的控制多邊形邊長為b zier縱標的b zier多項式來逼近曲線的參數速度,給出了相應的幾何等距逼近演算法,進一步結合法矢方向曲線的升階獲得了高精度逼近Hence designers can adjust the shape of curves by changing not only control points but also shape factor. our experiments show that h - bezier model approximate to the control polygon more closely than bezier model. so they are suitable to shape design and modeling in cad systems
而且h - b zier曲線還引入了一個稱為形狀因子的參數,形狀設計者不僅可以像b zier曲線一樣通過調節控制多邊形來控制曲線形狀,而且還可以調節形狀因子來調整曲線對控制多邊形的逼近程度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。This new basis provides properties analogous to berstein polynomials, including symmetry, zeros of the basis functions, positivity, normalization, etc. based on this new basis, we define a new kind of curves, to be called h - bezier curves, with control polygon
本文利用多項式混合雙曲形式在空間中構造了一組新的基,稱為h - b zier基,它具有類似於bernstein基的端點性質,零點階數,正性,正規性質,對稱性等性質進一步,文章通過控制多邊形的方式定義了h - b zier曲線During the past decades, some researchers, such as : bezier, kj. versprile, deboor and cox, etc. had made great progress in the filed of constrained b - spline curve and surface fitting. in this article the method of constrained b - spline curve was introduced, which is used to figure out the control vertexes. using this interpolation method we can calculate every points of a uniform b - spline
並且分析了在各種端點情況下,在重節點的情況下,如何反算控制多邊形的頂點;如何在求出控制多邊形頂點之後,插值計算b樣條擬合曲線上的每一點;並通過結合雙尾船的型線,採用visualc + +和autocad2002為平臺,分別編制了相應的軟體,對提供的型值做出繪圖處理,取得了良好的效果。In the third chapter, we present a class of c2 - continuous spline curves of degree 4 with some shape parameter. the segmented curves are all shape preserving to given polygon
第三章提出一類c ~ -連續的帶有形狀參數的四次樣條曲線,曲線上的所有曲線段的控制頂點由給定多邊形的頂點直接計算產生。The system uses the permanent magnet synchronous machine as the driver motor based on the idea of polygonal flux linkage locus and the permanent magnet brush - less motor is as the momentum balance motor by means of speed and current loop in order to track driver motor precisely and rapidly. the harmonious control of driver motor and balance motor is realized by making full use of the dsp hardware resource and complicated programmable logic device. the software design is composed of c and assembly language to realize motor control arithmetic of polygonal flux linkage locus
衛星天線伺服控制系統以正弦波永磁同步電機作為驅動電機,採用多邊形磁鏈軌跡法(電壓空間矢量法)的控制策略;動量平衡電機採用永磁無刷直流電機,通過電流環、速度環達到快速、精確跟蹤驅動電機的目的,確保了衛星姿態恆定;設計方案中充分利用了dsp硬體資源和復雜邏輯陣列實現了驅動電機和平衡電機的協調控制,並通過c語言和匯編語言的混合編程實現了電機的多邊形磁鏈軌跡控制演算法。To fulfill the need of the application of rp technique in medical domain, reverse cad modeling from medical cross sections is systematically studied in this dissertation. firstly, some algorithms related to the research of this dissertation are studied. new algorithms for orientation and inclusion test for simple polygon, an error constrained automatic faring algorithm for b - spline curve and a theorem regarding the termination criterion for subdivision of triangular bezier patch are proposed
本文針對rp技術在醫學領域應用的需要,系統研究了基於醫學斷層輪廓數據的反求cad建模理論和方法: ( 1 )在基礎演算法研究部分,提出了簡單多邊形方向及點在多邊形內外判斷的新方法、三角b zier曲面片離散的誤差控制定理和一種帶誤差約束的b樣條曲線的自動光順方法; ( 2 )提出了一種基於相鄰層輪廓相似性的醫學斷層輪廓數據曲面重構方法; ( 3 )提出了一種稱為「虛擬測量」的曲面模型處理方法。Abstract : a new data structure that one link - list was composed of polygon - surface table, edge table and vertex table was proposed to describe the geometry information and topology information of control polyhedron m in the rese arch of modeling with closed surface. compared with other structures which were a pplicable to the work, the structure was understandable, economize and conveniently to modify. after describing the detail of the geometry information, topology inf ormation included in the tables of polygon - surface, edge and vertex, and the poin t - link form of the adjacency multilist between the tables, a concise instance was given in clanguage array
文摘:介紹了在閉曲面造型研究中,為描述控制多面體m的幾何信息和拓撲信息而設計使用的一種單鏈三表的數據結構.與其他適用與描述控制多面體的數據結構相比,該結構在結合了鄰接多重表方法后的特點是:關系描述清楚,節省存儲空間,方便查找和交互修改形體.在介紹單鏈中三表(面表、邊表、頂點表)所含的幾何信息細節、以及單鏈的三表之間的表示面、邊、頂點拓撲關系的指針的鄰接多重連接方式之後,本文給出了以c語言數組方式簡明描述的數據結構實例Control and telemetry system with high realistic visual effect were created firstly by texture mapping technique in 3d max modeling software. the label, symbol and materials ’ texture of the equipment were presented by color texture mapping technique
本文中首先利用多邊形建模技術、紋理映射技術在3dsmax建模軟體中創建出了高逼真度的控制和遙測系統的三維模型。You can test the polygon control in the activex control test container
可以在activex控制項測試容器中測試「多邊形」控制項。Though simulating the state of packing, adopting the experience of manual packing and heuristics knowledge to control the searching way and limit the search space, it changes the packing problem into the problem of searching best path in the state space
文中對多邊形的合成技術進行了研究,通過模擬布局狀態,吸取人工布局的經驗,採用啟發式知識控制搜索方向,限制搜索空間,把布局問題轉化為在狀態空間下尋找最優路徑的問題。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。分享友人