square-from-corner-to-corner ("scc")

See this command in the command table.

To access this command:

Digitize ribbon >> Create >> Rectangle >> Square by Corners.
Using the command line, enter "square-from-corner-to-corner"
Use the quick key combination "scc".
Display the Find Command screen, locate square-from-corner-to-corner and click Run.

Command Overview

Draws a square by defining opposite corners. Points can be digitized into any 3D window.

Tip: If you're after a rectangle of known dimensions, consider snapping to a grid with this command, or use create-planar-rectangle("crct").

Note: This command supports command line coordinates.

Selecting data and snapping

Using the left-mouse button for both the 1st and 2nd clicks will always align the resulting string with the currently active section.
Left-clicking the first point, then using right-click to snap to an off-section point will still scale the string, but the resulting string will always be coincident with the section plane.
Right-clicking a point off-section then left-clicking or right-clicking a second point will produce a string that will align with the current section's azimuth and dip, but without changing the elevation of the first point; the square will be positioned at the elevation of the first point, and following the direction of the section.

Tip: change the colour of the string you are creating whilst the command is active. You can even access the String Properties screen to make further edits to the legend, symbols etc. without having to close the command.

Command steps:

Select the required snap and data selection settings using the Home ribbon.
Run the command.
Using the Current Objects toolbar, select the current string object or create a new one. See Current Objects.
Click to define a corner of the square.
Click to define the opposite corner of the square..

Tip: To adjust the size of the square, click-and-drag to move the second point.
Click Done to complete the creation of the square.