It will be convenient to use the rounded corners of the sketch at first. Modifying the fillet parameters at will is much simpler than the version before Adobe Illustrator cc 20 15. However, it is gradually found that the fillet cannot be scaled synchronously when scaling the graph, so I hope to change the fillet into a path before scaling. However, we found that the flattening command was not available. What should I do?

The trick here is to build a new graphic on the plane graphic you want, and then merge the two graphics into a whole. At this time, you can use Flat, layer >; The path & gt is flat.