实现一个心行图案的各种二维几何变换（包括同比变换，错切变换，平移变换、旋转变换等）-achieve a mind trip of two-dimensional pictorial geometry transformation (including an transform, shear transformation, translation transform, ROTATION)

思维导图的节点具有层级关系和隶属关系，很像枝叶从树干伸展开来的形状-Mind mapping node has the hierarchy and the subordinate relations, much like the shape of the branches the trunk spread out