Autodesk 00308-011408-9F30A User Guide - Page 327

To convert curves to polylines, or polygons 1 Select the curve you want to convert. 2 Place the pointer over the curve, but not on its about point, then right- click. A pop-up menu appears. 3 Click Curves to Polylines/Polygons to convert open curves to polylines and closed curves to polygons. Closing and Opening Curves Curves can be open or closed. An open curve has a separate point for the start and end of the curve. When you close a curve, AutoSketch visually connects the two ends of the curve. You can create open or closed curves when drawing by selecting or unchecking the Closed check box on the edit bar. For information on drawing fitted and spline curves, see "Drawing Curves" on page 151. Converting Polylines and Polygons Polylines can be converted to polygons. To convert a polyline to an irregular polygon, you must close the polyline. In fact, an irregular polygon is a closed polyline. To close a polyline, you can click Close on the vertex editing edit bar or click Irregular Polygon from the drop-down list box on the edit bar. Simply moving the startpoint and the endpoint of the polyline on top of one another does not close the polyline and create a polygon. You lose any solid fill when you convert polygons to polylines. To convert a regular polygon to a polyline, you must edit the vertices of the polygon. You can convert an irregular polygon by vertex editing, although it is generally much easier to simply click Polyline in the drop-down list box on the edit bar. Using this method does not allow you to select the location of the opening. Instead, AutoSketch creates the opening by removing the segment between the first and last vertices. Any type of vertex editing converts a regular polygon to an irregular polygon. The following procedure converts a regular polygon without changing the length of any of its sides. Converting Polylines and Polygons | 317