冶金工程中映射网格划分技巧(3)

冶金工程中映射网格划分技巧

够体会到划分数匹配的重要性了，实际工程中的图形远比这个复杂得多，要想完全满足划分数匹配的条件是很不容易的，甚至可以说几乎不可能，除非全部分割成4边或3边形，但这样会产生很多小面影响网格划分的质量，这在建筑结构中是很常见的，我做过几个实际工程，深有体会。因此amap命令的使用也有局限性，在实际工程中可以综合使用多种方法以达到最优化。

Look at a simple example (see coordinates) as shown in figure 1, the size, the graphic is composed of three level of A2 and A3, to meet the mapping grid conditions, A1 but it looks like a rectangle is composed of five edge, to achieve A1 alluding to the grid partition, you can use the work plane to be cut along the L6, but it would be more than a line, in some cases is don't want there to be redundant elements, such as the figure 1 as a floor, line is the beam, if after cutting out a line, to define beam inconvenience in the future. This problem can't use lcomb command to the serial number of the model with the above command flow figure 1 a little different. From this simple example, you should be able to realized the importance of partition number matching, in actual engineering graphics is far more complicated than this, if you want to completely satisfy the partition number that matches the condition is very not easy, and could even say that almost impossible, unless all split into 4 or 3 while form, but this will produce a lot of small surface affects the quality of the mesh, it is very common in building structures, I have done some actual projects, have experience greatly. Therefore amap order use also has limitations, can be integrated in the practical engineering using a variety of methods to achieve optimization.

二、映射网格划分如何用程序实现

Second, the mesh mapping program to realize how to use

下面仅介绍平面四边形（直边）映射网格划分实现的详细过程，其他仅给出思路。

Here only introduces plane quadrilateral mesh (straight) mapping implementation process in detail, the other only thoughts are presented.