Polyline edit, or the PEDIT option, allows you to edit existing polylines in your drawing. To edit a polyline, select the PEDIT command and then click the polyline you want to edit. Alternatively, you can also double-click the polyline and the polyline edit command will activate. You will see a lot of options on the command line, as shown in Figure 8.49:
Let's look at a few of these options:
- Close: This option will close the open polyline into a closed loop.
- Join: This option will allow you to join other open geometries, such as a line, with the existing polyline.
- Width: Using this option, you can add width to an existing polyline.
- Fit: This option turns the polyline into 2D polyline that looks like a Spline Fit but is still a polyline. In this case, you can modify the converted polyline like a spline, but when you hover your cursor over the spline it will still show that it is a polyline.
- Spline: This option turns the polyline into a 2D polyline that looks like a Spline CV, that is, a spline with control vertices, but it is still a polyline. In this case, the converted polyline will have control vertices, and you will be able to modify the polyline like splines with control vertices.
Converting a polyline into a true spline
To convert a polyline into true spline double, click on the polyline and then select the Spline option from the PEDIT options of the command line. The polyline will be converted into a 2D polyline. Type SPE for the spline edit command, select the 2D polyline we just created, and press Enter. Now, we have a true spline, and if you hover your cursor over the geometry, it will show Spline on the tooltip.
So, these were the polyline tools. Now, let's look at the spline and spline edit tools in the next section.