Calculate step parameters given two planes

[ghzheng]

Hi,

Is there any function of X3DNA that can provide the 6 step parameters between two planes whose origins and orientations are given? For example, we can have a file including such information:

plane #   OX   OY   OZ    Xx   Xy  Xz  Yx  Yy  Yz  Zx  Zy  Zz
plane 1    *      *     *     *     *    *     *    *   *    *    *   *
plane 2    *     *      *     *     *    *     *    *   *    *    *   *

then, 3DNA can tell the step parameters.


Or shall we write own codes to do this, by following the technical algorithms in the 3DNA mannual?

Thanks.

[xiangjun]

Of course, such a function is implemented in the 3DNA source code. However, please see FAQ #3.

There is no such a stand-alone program distributed with 3DNA. As you guessed, your best bet is to refer to the 3DNA user's manual for a detailed step-by-step example on how this is done in 3DNA. Following the procedure, it then should be a straightforward process to implement the algorithm in your favorite programming language.

HTH,

Xiang-Jun