tangent plane 中文意思是什麼
tangent plane
解釋
標準緯圖-
The word horizontal is applied only to the plane which is tangent to the ground-level equipotential surface.
地平面這個詞則只表示與地面水準等位面相切的平面。 -
Geoid tangent plane
大地體切面 -
Thirdly, from the idea of locally linear approximate, another tangent - plane algorithm is presented for the distance between the convex nurbs surfaces. the critical step is the construction of the support mapping by gjk and lc to search for nearest points, and emphases are laid on dealing with isotropic cases and choosing initial iterated points. it is also proved that no isotropism during iteration would take place if initial iterated points are positive points
切平面法是運用gjk和lc構造支撐映射的原理而設計的一個搜索近點對的迭代法，著重給出了迷向情況的處理和初始迭代點的選取方法，並證明了只要將初始迭代點取為陽點，就不會出現迷向情況。 -
The following is main research work : 1. geometry characters ( such as tangent plane and normal plane etc. ) and differential coefficient characters are theoretically analyzed in detail, then the intersection differential coefficient system model for trace is constructed
在理論上，系統地分析了交線的幾何特徵（如切平面和法平面等）和微分特徵（如曲面的一階基本齊式等） ，建立了交線的微分系統跟蹤模型，從而為今後進一步研究求交問題提供了一個可行的途徑。 -
The azeotropic distillation of the system acetic acid - water - azeotropic agent ( isopropyl acetate and butyl acetate ) is simulated. due to the non - ideal behavior, nrtl - hoc and uniquac - hoc model is used to depict vapor - liquid phase equilibrium behavior of this system. concerning the liquid in the decanter, the stability is checked by tangent plane stability analysis, and the initialization of phase splitting calculation is produced. a good estimate of the phase fration is gotten by successive substitution with newton ' s method, and every component of two phase is gotten by mass equilibrium equation. finally, the solution of this equation is produced with successive substitution calcultion. the naphtali - sandholm method is used to simulation of azeotropic distillation. by virtue of this combined calculation method, the simulation is begun with operational data as basical data. the results of simulation accord with the operating data, which proved that the combined calculation method is credible
該體系具有高度非理想性，氣液相平衡模型採用nrtl - hoc和uniquac - hoc模型，採用切平面判據法對進入分層器中的液相進行液相穩定性測試，提供液液相分離計算的初值，再結合牛頓拉夫森迭代法運算求得相分割系數，根據物料衡算求出各相組成，循環迭代可求得分層各組分數據，共沸精餾模擬計算採用那夫塔列-山德荷姆全變量迭代演算法。 -
After the orderly reduction methods of massive scattered data being studied, this paper proposes a partial tangent plane slicing method and a virtual second - scan line method after giving a new k - nearest algorithm to re - organize the massive data. the new proposed methods of data reduction and grey theory based unusual noisy data process can be used to generate the scan line type data and it can be directly used to reconstruct curves and surfaces. the research lays a good foundation for reconstructing the cad model in a point - line - surface manner
4 .深入研究了海量散亂數據的有序簡化技術，在提出建立海量數據點鄰接關系k -鄰近新的演算法基礎上，提出了局部切平面切片法和虛擬二次掃描線法，實現了海量數據的有序重組，通過基於灰理論的數據簡化和異常點處理新方法，生成可用於直接重構曲線曲面的掃描線類型數據，為以點?線?面方式重構cad模型打下了良好的基礎。 -
Since the cause of caustics phenomena is that the tangent plane of lagrange submanifold in caustic fields is perpendicular to the original physical space, we solve the high frequency asymptotic problem in a new mixed space by changing the projecting direction, then we get the high frequency asymptotic solutions of wave equations efficiently near and on the caustics
由於出現焦散現象的原因在於lagrange子流形在該處的切平面與物理空間垂直，通過轉換適當的投影方向，然後將這個投影方向上得到的高頻近似解再變換回到原來的物理空間中，得到了在焦散附近適用的高頻近似解。 -
First, a map between the cones and tangent surface on c - b zier curve und two - dimensional plane is found respectively and then a ruled surface between two bezier curves is constructed and a sufficient condition on its developablity is given
Zier曲線上的錐面和切線曲面，分別建立了它們到平面的等距映射，給出了c - b ? zier曲線上錐面、切線曲面的展開方法。然後，構造兩條空間b -
This paper analyses the tangent equation of space curve and the derivation process of the curved tangent plane equation in the higher - mathematics teaching - materials, and shows another method to extract the tangent equation of space curve
摘要分析高等數學教材中空間曲線的切線方程和曲面的切平面方程的推導過程，給出求空間曲線的切線方程的另一種方法。 -
With the algorithm, fairing and uniform meshes are obtained by moving each vertex in normal direction and tangent plane simultaneously. an algorithm of feature enhancing and mesh smoothing is studied. the algorithm is based on iterative use of diffusion of normals and vertices
融入平均曲率光順思想，對拉普拉斯運算元進行改進，通過在法矢方向和切平面上同時對網格頂點進行移動調整，較好地達到模型外形光順、三角片形狀比較均勻的要求。 -
We construct the algorithm of three - dimensions model surface reconstruction in three stages : first, we use oct - tree to describe scatter data points in space, second find adjacent points and tangent plane and use the triangulation method to realize 3d surface reconstruction in the end, in research on algorithm of three dimensions model surface reconstruction based on scatter data points
在「基於散亂數據三維表面演算法的研究」這一章中，首先通過八叉樹的數據結構的演算法對三維散亂數據進行處理，然後再確定鄰點和微切平面，最後用三角網格化的方法完成三維物體表面重構。
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