question of coordinate system

candy

i draw two graphics of two cylinders.when i draw the first one ,i assign a coordinate for it based on the world coordinate.but when i draw the second one ,i assign it a coordinate the same to the first one,and the two overlap .i rotate one of them,the two overlap no more.at the same time ,i find i assign one of them a coordinate,and then i assign the other one the same coordinate,but they are separate.i do not understand where the question is.

Henrik Berlin

Coordinate transformations involving rotations are not always entirely intuitive. What I usually do when positioning objects in RobotStudio is to use "free-hand move" to do the rough positioning, and the use "Set Position" to fine tune the positions.

candy

yeah,I have a try .It is very good.thank you.