Where can I find this command?
The Mirror command creates a mirror-image copy of objects.
Steps
| 1. | Select the objects. |
| 2. | Pick the start of the mirror plane. |
| 3. | Pick the end of the mirror plane. As you move the cursor, Rhino previews the location for the mirrored objects. The two end points specify a mirror plane perpendicular to the construction plane. |
Note: Use object snaps to accurately place the mirror plane, especially if you want to Join a surface and its mirrored copy.
Command-line options
Pick three points to define a mirror plane.
Copy
The Copy option specifies whether or not the objects are copied. A plus sign 
appears at the cursor when copy mode is on.
Note: The RememberCopyOptions command determines whether the selected option is used as the default.
XAxis
Automatically mirrors the object around the construction plane x-axis.
YAxis
Automatically mirrors the object around the construction plane y-axis.
See also
Rhinoceros 5 © 2010-2015 Robert McNeel & Associates. 17-Sep-2015
