3-1 Introduction3-2 Object Snap3-3 Osnap—Endpoint3-4 Osnap—Midpoint3-5 Osnap—Intersection3-6 Osnap—Apparent Intersection3-7 Osnap—Center3-8 Osnap—Quadrant3-9 Osnap—Perpendicular3-10 Osnap—Tangent3-11 Osnap—Nearest3-12 Drawing Problem3-13 Drawing Problem3-14 Grips3-15 Grips—Extend3-16 Grips—Move3-17 Grips—Rotate3-18 Grips—Scale3-19 Grips—Mirror3-20 Blocks3-21 Working with Blocks3-22 Wblock3-23 Layers3-24 Attributes3-25 Title Blocks with Attributes3-26 Edit Polyline3-27 Edit Spline3-28 Edit Text3-29 Constructing the Bisector of an Angle, Method I3-30 Constructing the Bisector of an Angle, Method II3-31 Constructing an Ogee Curve (S-Curve) with Equal Arcs3-32 Constructing a Parabola3-33 Constructing a Hyperbola3-34 Constructing a Spiral3-35 Constructing a Helix3-36 Designing by Using Shape Parameters3-37 Exercise Problems