C # Visio Two development combination of shape operations

Since a friend needs Visio to implement a simulation demo, I've made some tweaks to the original Visio project code to do what it needs. Now will be the original Visio two development projects of innovative ideas and results summed up, readers, also as a sign for future reference, or colleagues, together to study. The first map to show the entire project of the paragraph, indicating that this article is not groundless, theoretical!

I am based on the project of Visio two development articles wrote a lot of, which involves the operation of various shapes, but basically as a whole to achieve a graphic overall effect, as the simulation needs, the need to change the reversing valve function, and reversing valve is a combination of controls, Basically, the operation of the combined control is a whole operation, can not be local to change the position, so to achieve such changes, it really cost a lot of effort.

Requirements are required to do line analysis, oil after the combination of graphics to achieve the effect of transformation, as shown in the following figure: