AutoCAD Mechanical provides the AMRECTANG command to create rectangular-shaped, closed polylines.
The RECTANG command also creates rectangles by specifying two opposite corners. However, depending on where you want to insert the rectangle, you may not always find it convenient to specify the two opposite corners. The AMRECTANG command provides options to define rectangles using points other than the two corner points.
Soon after invoking the command, if you press SPACE, the starting point changes. The cursor changes to show the current start point.
| Cursor | Meaning |
|---|---|
 |
Creates a rectangle using a corner as the starting point. |
 |
Creates a rectangle using the midpoint of the base as the starting point |
 |
Creates a rectangle using the midpoint of the height as the starting point. |
 |
Creates a rectangle using the center of the rectangle as the starting point. |
Once you specify the starting point, you can choose to change the shape of the corners (fillet or chamfer). You can also control whether centerlines are drawn with the rectangle or not.
After that, you must specify the second point that defines the rectangle. You can click in the drawing area to specify the second point. If dimension input is enabled, you can specify the second point by entering dimension values on the tooltips.
You can also define the rectangle using the area and either a length or a width. If the Chamfer or Fillet option is active, the area calculation takes the effect of the chamfers or fillets on the corners into consideration.
AutoCAD Mechanical provides several other options to define the start point and end point. To access them, use the command line options to display the Rectangles dialog box.