magic tangram

此模型通过一种特殊的切割方式将正方形分为四部分（若想了解具体的切割方式请私信作者），通过旋转拼接的方式使得模型转化为一个正三角形。 This model uses a special cutting method to divide the square into four parts (please contact the author if you want to know the specific cutting method), and transforms the model into a regular triangle by rotating the stitching method. 此模型可以应用于地砖设计上，由于正三角形与正方形均可以无缝与同型的结构拼接，足够多的此模型可以组合变换出丰富多彩的图案。此外，在设计桌子时同样可以考虑这种设计，通过这种拼接方式，四人围坐的桌子与三人围坐的桌子可以互相转化。 This model can be applied to the design of floor tiles, because the equilateral triangle and square can be seamlessly joined with the same type of structure, enough of this model can be combined to transform a colorful pattern. In addition, this design can also be considered in the design of the table, through this splicing method, the table sitting around four people and the table sitting around three people can be transformed into each other. 并且，其印证了一个客观规律，即：自然界和人类社会中一切事物的界限都是有条件的、可变的，任何事物或现象都能在一定条件下转化为自己的对立面。 Moreover, it confirms an objective law, that is, the boundaries of