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dyc_2008

捐助贵宾 (著名写手)

[求助] VESTA手册中有一句死活没看懂。

15.5.2   (hkl) plane de ned by two vectors

In this mode, two-dimensional data on the slice are recalculated by linear interpolation.
When the numbers of data points along x, y, and z directions in the volumetric data are N[0],N[1], and N[2], respectively, the number of data points, Nx, along the [u1v1w1] direction is computed by Nx = (int)(N[0]  u1 + N[1]  v1 + N[2]  w1)

The same procedure is applied to the number of data points along the [u2v2w2] direction.

首先,每个点的数据,本来就是存在的,还要插值干什么?难道是要计算晶胞范围以外的数据?这也不对啊,周期性平移,三维空间中所有点的数据都是已知的呢。

然后,这个 x、 y 、z 方向是什么意思? direction 加了s,感觉是3个向量。

第三,这个(int)表示什么?取整?为什么要取整呢?Nx = (int)(N[0]  u1 + N[1]  v1 + N[2]  w1) 这一通计算下来,这个数值也太大了吧?

第四,[u1v1w1] 和 [u2v2w2] 是特指定义平面的两个向量,还是平面上容易向量?
the number of data points, Nx, along the [u1v1w1] direction. 注意是 points!难道要计算该方向上的很多点?更难懂了。
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