Their corners can be filleted or chamfered but their edges cannot be extensively edited. Rectangular Polylines are composed of lines, just as their name implies, so each of their edges can be edited in the same way that lines can: they can be broken, trimmed, curved, deleted and so on.īoxes are always closed shapes with four 90 degree corners. Two of the most common tools Rectangular Polyline and Box, seem very similar at a glance, but are actually quite different from one another. With the block selected, click the Add to Library edit button to add the CAD block to the library for future use.ĭepending on your requirements for a particular detail drawing, you may find that you use all of the CAD tool families: Lines, Arcs, Splines, Boxes and Circles.Note: For more information on group selecting objects, please see the appropriate resource in the Related Articles section below.