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Editing polylines

You can modify any type of two-dimensional or three-dimensional polyline. Entities such as rectangles, polygons, and donuts, as well as three-dimensional entities such as pyramids, cylinders, and spheres, are all variations of polylines that you can edit.

You can edit a polyline by opening or closing it, by changing its overall width or the widths of individual segments, and by converting a polyline with straight line segments into a flowing curve or an approximation of a spline. In addition, you can use the Edit Polyline tool to edit individual vertices, adding, removing, or moving vertices. You can also add new segments to an existing polyline, change the linetypes of a polyline, and reverse the direction or order of the vertices.

To modify a polyline, you first select the polyline, and then select a polyline editing option. The available options vary depending on whether the selected polyline is a two-dimensional or three-dimensional entity. If the selected entity is not a polyline, the Edit Polyline tool provides the option of turning it into one. You can convert only arcs and lines into polylines. If several arcs or lines are joined endpoint to endpoint, they can all be selected and turned into one polyline.

To convert an entity into a polyline

  1. Do one of the following:
    • Choose Modify > Edit Polyline.
    • On the Modify toolbar, click the Edit Polyline tool ().
    • Type editpline and then press Enter.
  2. Select the entity.
  3. In the prompt box, choose Yes-Turn Into Polyline.
  4. In the prompt box, choose another option, or choose Done to complete the command.

Changing the polyline width

Curving and decurving polylines

Editing polyline vertices

Joining polylines

Opening and closing polylines

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