AutoCAD 2D Tutorial - 139 - Chapter 16 More Draw CommandsAutoCAD 2D Tutorial - 140 - Polygon 16.1 1. Choose Draw, Polygon. or 2. Click the Polygon icon. or 3. Type Polygon at the command prompt. Command: POLYGON 4. Type The number of sides for the polygon (3-1024) Number of sides <default>: number 5. Pick The center of the polygon. Edge/<Center of polygon>: pick or 6. Type E to define the polygon by two edges. 7. Type I or C to place the polygon inside or outside of an imaginary circle. Inscribed in circle/Circumscribed about circle (I/C): Polygon Inscribed in an Polygon drawn with Edge imaginary circle Polygon circumscribed around an imaginary circleAutoCAD 2D Tutorial - 141 - Rectangle 16.2 1. Choose Draw, Rectangle. or 2. Click the Rectangle icon. or 3. Type Rectang at the command prompt Command: RECTANG Chamfer/Elevation/Fillet/Thickness/Width/ <First corner>: 4. Pick first corner. 5. Pick other corner or type coordinates (i.e. @4,2).AutoCAD 2D Tutorial - 142 - Spline 16.3 The SPLINE command creates a particular type of spline known as a nonuniform rational B-spline (NURBS) curve. A NURBS curve produces a smooth curve between control points 1. Choose Draw, Spline. or 2. Click the Spline icon. or 3. Type SPLINE at the command prompt Command: SPLINE 4. Pick A start point for the spline Object / <Enter first point>: (pick point) 5. Pick Points until you are done drawing splines Enter point:(pick points) 6. Press Enter or close to complete the spline 7. Pick Starting tangent point for the spline Enter start tangent (pick point) 8. Pick Ending tangent point for the spline Enter end tangent: (pick point)AutoCAD 2D Tutorial - 143 - Spline options: Object Converts 2D or 3D spline-fit polylines to equivalent Splines Points Points that define the spline Close Closes a spline. Fit Tolerance Allows you to set a tolerance value that creates a smooth spline. TIP: Refer to AutoCAD online help topic for more information on spline options. Editing Splines 1. Choose Modify, Object, Spline. TIP: Drawings containing splines use less memory and disk space than those containing spline-fit polylines of similar shape.AutoCAD 2D Tutorial - 144 - Covert PLINE to Spline 16.4 1. Draw a PLINE. 2. Type PEDIT to edit the polyline as a spline. 3. Choose Draw, Spline. 4. Type Object at the command prompt. 5. Click once on the polyline to turn it into a spline. TIP: Use the LIST command to determine if an object is a PLINE or SPLINE.AutoCAD 2D Tutorial - 145 - Donut 16.5 Donuts are filled rings or solid-filled circles that actually are closed polylines with width. 1. Choose Draw, Donut. or 2. Type Donut at the command prompt. Command: DONUT 3. Type A value for the inside diameter. Inside diameter <last>: .5 4. Type A value for the outside diameter. Outside diameter <last>: 1 5. Pick A point for the center of the donut. Center of doughnut: (point)AutoCAD 2D Tutorial - 146 - Ellipse 16.6 Creates an ellipse or an elliptical arc. 1. Choose Draw, Ellipse. or 2. Choose the Ellipse or Partial Ellipse icon. or 3. Type ELLIPSE at the command prompt Command: ELLIPSE 4. Type One of the following options: Arc/Center/Isocircle /<Axis endpoint 1>: Ellipse options: Axis endpoint 1 Defines the first axis by two specified endpoints. The angle of the first axis determines the angle of the ellipse. The first axis can define either the major or the minor axis of the ellipse. Axis endpoint 2: <Other axis distance> / Rotation: Specify a point or enter a distance Arc Creates an elliptical arc. The angle of the first axis determines the angle of the elliptical arc. The first axis can define either the major or the minor axis of the elliptical arc. Center Creates the ellipse by a specified center point. Isocircle Creates an isometric circle in the current isometric drawing plane. Rotation The major axis is now treated as the diameter of a circle that will be rotated a specified amount around the axis. You enter an angle between 0 and 89.4 degrees.AutoCAD 2D Tutorial - 147 - ELLIPSE, Axis , Eccentricity (Axis Endpoint, Axis Endpoint, Other Axis Distance) ELLIPSE, Center, Axis, Axis ELLIPSE, Axis Endpoint, Axis Endpoint, Rotation=60AutoCAD 2D Tutorial - 148 - Multilines 16.7 MLINE Command Creates multiple parallel lines. 1. Choose Draw, Multiline. or 2. Type MLINE at the command prompt. Command: MLINE 3. Pick A point to start the multiline. Justification/Scale/STyle/<From point>: pick point 4. Pick A second point to continue the multiline. <To point>: pick point 5. Pick The next point to continue drawing multilines. Undo/<To point>: pick point 6. Press ENTER to end the mulitline Close/Undo/<To point>: press enter or 7. Type C to close the multiline back to the first point. Close/Undo/<To point>: cAutoCAD 2D Tutorial - 149 - Multiline Justifications Top Justification Bottom Justification Zero JustificationAutoCAD 2D Tutorial - 150 - Multiline Styles 1. Choose Format, Multiline Style... or 2. Type MLSTYLE at the command prompt. Command: MLSTYLE 3. Rename The existing style called STANDARD to your new style. 4. Choose