Hello, everyone~ I'm new here and i come across one problem. here it follows. I draw one rectangle in model area , then build one layout and rotate the WCS by 30 degrees,. Below are the pictures.  But the problem is, when i try to copy the rectangle and paste it somewhere in layout, the pasted objects seem to be rotated by certain angle. Like here:What can i do with this problem? I dont want it to be tilted. Thanks!!!

Yeah, the pasted object is rotated 30 degrees.  Why are you surprised?  Rotate the viewport. 

I know it's 30 degrees and is there any way to solve the problem without rotate the viewpoint,just in the layout itself.

Hello sysuwzw, you are creating alone your own misery by rotating the UCS and then finding that pasted object are rotated by the same angle.A ( or the good way ) would be to use the different UCS settings correctly or use them when needed.Maybe you are nor obliged to rotate the viewport and/or use the command PLAN to set the angle of the viewport after setting a special UCS ( that can eventually not be 30° but 29.12345678987654345678998765....... ).You can set an UCS conformably to a view ( UCS , option View ) and set a view conformably to an UCS ( command PLAN ).Have a nice day.

Simply rotate the VIEW in the viewport itself.  Read this then do it.http://docs.autodesk.com/ACD/2010/ENU/AutoCAD%202010%20User%20Documentation/index.html?url=WS1a9193826455f5ffa23ce210c4a30acaf-74a2.htm,topicNumber=d0e35964