Drawing 3D polylines

A 3D polyline is composed of linear segments in 3D space.



The 3DPOLY tool is available on:

  • the Draw menu
  • the Polylines toolbar
  • the Draw ribbon panel

General procedure

  1. Launch the 3DPOLY command.

    You are prompted: Select start of polyline or [Follow] <Last point>:

  2. Specify a point.

    You are prompted: Next point:

  3. Specify a point.

    You are prompted: Next point or [Close/Undo]:

  4. Do one of the following:
    • Choose the Close option to connect to the start point and create planar triangular 3D polyline.
    • Specify a point.

    You are prompted: Set next point or [Close/Undo]:

  5. Do one of the following:
    • Choose the Close option to connect to the start point.
    • Specify a point.

    You are prompted: Set next point or [Close/Undo]:

  6. Keep specifying points or press Enter to stop.

Editing a 3D polyline

  1. Select the 3D polyline.

    The properties display in the Properties panel.

  2. Under Misc:
    • Fit/Smooth: select None, Cubic or Quadratic.

      The Cubic and Quadratic options create a spline representation of the 3D polyline.

    • Closed: When set to No, removes the closing segment.