The topological isomorphism is an important factor that affects the mechanism synthesis and optimization.Based on the matrix determination method the pole pair mechanism combining with the characteristic of the discrete topology

a new method of the topology microfilm transform to solve the problem of topological isomorphism is proposed.Finally

the detailed determine methods are given by the example from

and the automated decision by the computer is achieved.The examples show that this new method is precise

simple

effective and easy to implement by computer.The new method has the advantages of automatic topographical synthesis and isomorphism identification by computer

thus the topology inversion can be automated

intelligent

networked and visualization in the future.