You can create copies of objects in a rectangular or polar (circular) pattern called an array. For rectangular arrays, you control the number of rows and columns and the distance between each. For polar arrays, you control the number of copies of the object and whether the copies are rotated. To create many regularly spaced objects, arraying is faster than copying.
If you specify a very large number of rows and columns for an array, AutoCAD LT may take a long time to create the copies. By default, the number of array elements that can be generated by one command is limited to 100,000.
AutoCAD LT builds a rectangular array along a baseline defined by the current snap rotation angle. This angle is zero by default, so the rows and columns of a rectangular array are orthogonal with respect to the X and Y drawing axes.
You can change the angle and create a rotated array. Setting the snap rotation angle to a nonzero value rotates the screen crosshairs accordingly. You can consider all rectangular arrays to be constructed parallel to the crosshairs. Rows align with the X crosshair, and columns align with the Y crosshair.
When you create a polar array, the array is drawn counterclockwise or clockwise depending on whether you enter a positive or a negative value for the angle to fill and on the Direction Control setting in the Units Control dialog box.
By default, AutoCAD LT limits the size of an array to a maximum of 100,000 objects. This limit is controlled by the MaxArray setting in the registry. You can change this limit to any number between 100 and 10,000,000 with SETENV.