Copyright Goodheart-Willcox Co., Inc. 126 AutoCAD and Its Applications—Advanced Next, draw a polyline using the coordinates shown in Figure 5-13. Remember, to enter absolute coordinates with dynamic input turned on, type a pound sign (#) before the coordinate. This temporarily overrides the dynamic input of relative coordinate values. Be sure to use the Close option for the last segment. As you construct the side view, you can clearly see its true size and shape in the left-hand viewport. At the same time, you can see the construction in 3D in the right-hand viewport. Notice in Figure 5-13 that each view has a different UCS, as indicated by the UCS icon. Pick in each viewport in your drawing to view the different UCS orientations. The next step is to extrude the shape to create the base. The EXTRUDE command is used the same way as in Chapter 4. With the left-hand viewport current, enter the EXTRUDE command, pick the polyline, and enter an extrusion height of –4 units. The base of the object is now complete, Figure 5-14. Now, the cylinder needs to be created on the angled face. First, split the left-hand viewport into two horizontal viewports (top and bottom) using the New Viewports tab of the Viewports dialog box. Set both of the new viewports to display the current view. Pick the OK button to close the dialog box. Then, make the upper-left viewport current and set it up to always display a plan view of the current UCS by setting the UCSFOLLOW system variable to 1. In addition, set the UCSVP system variable to 0 so that the UCS confi guration in the current viewport is displayed. P3 P1 P2 Figure 5-14. The base of the object is now complete. A new UCS will be created on the angled face. If you are using the 3 Point option of the UCS command, use the pick points indicated. 0,5 2,5 5,2 5,0 Figure 5-13. The screen is divided into two viewports. A front view of the object appears in the left- hand viewport and a 3D view appears in the right-hand viewport. Activate each viewport to view the UCS icon orientation as shown here.