'Mirror' Command in AutoCad Civil 3D

Creates a mirrored copy of selected objects.

 Find

You can create objects that represent half of a drawing, select them, and mirror them across a specified line to create the other half.

Note: By default, when you mirror a text object, the direction of the text is not changed. Set the MIRRTEXT system variable to 1 if you do want the text to be reversed.

The following prompts are displayed.

Select objects

Use an object selection method to select the objects to be mirrored. Press Enter to finish.

Specify first point, second point of mirror line

The two specified points become the endpoints of a line about which the selected objects are mirrored. For mirroring in 3D, this line defines a mirroring plane perpendicular to the XY plane of the user coordinate system (UCS) containing the mirror line.

Erase source objects

Determines whether the original objects are erased or retained after mirroring them.