How Do I Convert to Polyline in AutoCAD?

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Converting objects to polyline in AutoCAD can be a useful technique when working with complex drawings or when you need to simplify your geometry. In this tutorial, we will explore how to convert various objects to polylines in AutoCAD.

What is a Polyline?

A polyline is a single, continuous object made up of one or more line or arc segments. It is commonly used to represent complex shapes and contours in AutoCAD. By converting objects such as lines, arcs, circles, or even splines into a polyline, you can manipulate them as a single entity.

Why Convert to Polyline?

There are several reasons why you might want to convert objects to polylines:

  • Simplification: Converting complex geometry into polylines can simplify your drawing and make it easier to work with.
  • Editability: Once converted to a polyline, you can easily modify its vertices and control points.
  • Smaller file size: Polylines typically have smaller file sizes compared to individual line or arc segments.

How to Convert Objects to Polyline

Method 1: PEDIT Command

The easiest way to convert objects into polylines is by using the PEDIT command. Follow these steps:

  1. Select the objects you want to convert by clicking on them.
  2. Type “PEDIT” in the command line and press Enter.
  3. In the PEDIT command prompt, type “M” for Multiple and press Enter.
  4. Type “J” for Join and press Enter.
  5. AutoCAD will attempt to join the selected objects into a polyline. If successful, you will see a message indicating the number of segments joined.

Method 2: Polyline Command

If you prefer more control over the creation of polylines, you can use the Polyline command. Here’s how:

  1. Type “POLYLINE” in the command line and press Enter.
  2. Specify the first point of your polyline by clicking on the desired location in your drawing.
  3. Continue specifying additional points by clicking on other locations in your drawing. You can also use options like “A” for Arc or “C” for Close to create arcs or close your polyline, respectively.
  4. Press Enter to finish creating the polyline.

Method 3: Boundary Command

If you need to convert a closed area into a polyline, you can use the Boundary command. Here’s how:

  1. Type “BOUNDARY” in the command line and press Enter.
  2. Select an enclosed area by clicking inside it or specifying its boundary objects.
  3. AutoCAD will create a polyline representing the boundary of the selected area.

Conclusion

Converting objects to polylines in AutoCAD is a powerful technique that can simplify complex drawings and make them more manageable. Whether you prefer using commands like PEDIT, POLYLINE, or BOUNDARY, each method offers its own advantages depending on your specific needs. Experiment with these techniques and discover how converting to polylines can enhance your workflow in AutoCAD.