Dangerous Curves Ahead
In This Chapter
Rounding the curves with circles, arcs, splines, and clouds
Employing eccentric ellipses
Dunking for donuts
Making your points
Although straight-line segments predominate in many CAD drawings, even the most humdrum, rectilinear design is likely to have a few curves. And if you’re drawing Audi car bodies or Gaudí buildings, those drawings will contain a lot of curves! In this chapter, we cover the AutoCAD curve-drawing commands. Your drawings should also have a point; in fact, they may have several points, so at the end of this chapter, we fill you in on creating point objects in AutoCAD.
Curves are used to represent many different types of features in a drawing. A circle is used to show a hole in a steel beam, but can also be used for a bicycle tire. After circles, the next most commonly used curve object is an arc. Arcs can be found in a drawing where two pieces of steel met to show a fillet or even a curved lip on a countertop. Other curve types that you can create are filled circles, ellipses, and splines.
AutoCAD supports ...