该等值线用于确定哪个等值面被提取。
This Isocontour is used to determine which isosurface is extracted.
画了更多等值面，它们看上去不太一样。
So, I'm drawing more and more levels and they never quite look the same.
为束缚住轨道的大小，我们取一等值面。
To pin down the size of an orbital, we take a contour surface.
本文提出了一种改进的等值面抽取算法。
算法是规则体数据等值面抽取的经典算法。
The Marching Cube algorithm is the classical iso-surface extracting algorithm in regular volume data.
如果不改变a，那意味着我们沿着等值面移动。
If we are not changing a, it means we are moving along the level.
画出等值面,上面有一条曲线,某点处，有某个速度。
w=c So, I have my level surface, w equals c I have a curve on that, and at some point I'm going to have a certain velocity.
那意味着，梯度向量在这点上，垂直于切平面或者是等值面。
Well, that means the gradient is actually perpendicular to the tangent plane or to the surface at this point.
本文采用改进的MT算法生成等值面，完成物体的表面重建。
At last isosurface is generated using MT algorithm and the reconstruction of surfaces is finished.
面绘制从三维体数据中抽取物体等值面，通过传统的图形学进行显示；
The surface rendering extracts isosurface from 3D volume data, and then uses traditional graphical technology to display.
本文讨论了具有等值面边界条件的抛物型方程的非局部的精确零能控性问题。
This paper is devoted to show the null exact controllability for a class of nonlocal parabolic equations with equiv-valued surface boundary condition.
但我们知道有另外一个向量也是和g的等值面垂直的，这个向量就是g的梯度。
But we know another vector that is also perpendicular to the level set of g. That is the gradient of g.
三维标量场可视化技术不仅可以绘制等值面，而且可以模拟X线的透射效果。
Visualization techniques for 3D scalar fields can be used to display constant value surfaces as well as to simulate transmission effect of X-ray.
这份声明表明德国央行是欧洲唯一一所把受到损坏的硬币兑换成等值面钞的银行。
The statement said the Bundesbank is the only bank in Europe that reimburses damaged euro coins at face value.
事实上，可以使用等值面W=c上的任何曲线,可以以任何方式在等值面上移动。
Well, in fact, I could use any curve drawn on the level of w equals c So, I could move, really,any way I wanted on that surface.
本文对两种算法进行了研究，实现了这两种算法对三维体模型抽取等值面构建表面模型。
This thesis studies these two algorithms in detail, with which the 3D regular volume data can be extracted to construct the 3D surface models.
表面绘制方法能够产生轮廓清晰的等值面图像，有效表示数据场中的三维信息，且绘制速度快。
Surface rendering produces clean-cut iso-surface, which can exhibit the three dimensional information effectively with high rate when rendering.
为了令你们习惯于这个想法，我画一个三变量函数的等值面,这是一个平面,由函数w=c给出的。
So, just to get you used to this idea, I'm going to draw a level surface of a function of three variables OK, so it's a surface given by the equation w of x, y, z equals some constant c.
基于边坡稳定性广角度分析的理论、准则和方法，提出了以干扰能量为判据的边坡稳定性分析等值面法。
Based on the theory of extensive Angle analysis for slope stability, the equivalence surface method adopting disturbed energy as the criterion is proposed.
另外，本文提出了由等值面数据计算法向量的方法，实现了在只有等值面坐标数据的情况下计算法向量。
Furthermore, a method of how to calculate vector of the iso-surface that has been extract from volume data is presented in this paper.
针对此问题，探讨了一种利用空间插值和等值面勾绘来建立地质要素的接近真实的3维可视化模型的方法。
This paper presents research on modeling 3d shape of geo-bodies and geo-fields through 3d interpolation and iso-surface constructing from limited and scatted exploration data.
一旦等值面方程被建立起来，可以设计相应的算法从深度数据中提取等值面，从而实现多视场深度像的融合。
Once such an equation is build up, the algorithm can be designed to extract iso-surface from range data and the consequent application of multi-view range image integration.
由于每一种地图要素唯一关联着一个第二特征值，因而地图要素可以表示为第二特征值的泛等值线或泛等值面。
Because every map element solely correlates a second characteristic value, the map element can be expressed as a generalized isoline or isoplane of second characteristic value.
针对有限元分析数据场的特点，提出了一种四面体剖分方法，并采用了一种快速搜索的数据结构，显著地减少了计算时间，有效地实现了有限元后处理程序中的等值面生成。
According to the feature of FEM data fields, an effective method of isosurface generation is presented utilizing the subdivided tetrahedron and the data structure for the fast searching.
对有限元的计算结果进行了分析，对运用最大剪应变等值线、大主应变等值线确定可能滑动面，运用应力水平分析单元的受力状态进行了研究。
The results of FEM are analyzed , and the action of the strain isoline , stress level isoline, energy isoline and safety factor isoline is applied.
最后，采用一种劈窗算法制作了南宁市城区陆面温度等值线图，得到比较理想的结果。
A split window algorithm was used to make contour map of the land surface temperature on NANNING City, the result is ideal.
介绍了GPS高程的应用理论，大地水准高的计算方法以及利用曲面拟合法计算大地水准面高，并对结果进行了分析，绘制出高程异常等值线图。
The paper introduces the application theory of GPS height and both the general method and the curved surface fitting method to measure geodetic height.
介绍了GPS高程的应用理论，大地水准高的计算方法以及利用曲面拟合法计算大地水准面高，并对结果进行了分析，绘制出高程异常等值线图。
The paper introduces the application theory of GPS height and both the general method and the curved surface fitting method to measure geodetic height.
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