Autodesk AUTOSKETCH 8, Руководство пользователя

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Converting Polylines and Polygons
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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 draw-
ing 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 open-
ing. 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.