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Toolbar: Draw 2D > Spline ()

Menu: Insert > Spline

Keyboard: SPLINE

Alias: SPL

Experience Level: Intermediate

Draws a free-form curve. To convert a polyline to a spline, use Polyline Edit.



  1. Select the first point through which the spline passes.
  2. Select the second point of the spline.
  3. Last spline selection point.


First point for spline: Specify the first point through which the spline passes.

Second point: Specify a second point of the spline.

Close Fit tolerance <Next point>: Specify the next point of the spline. To close the spline entity, choose Close. To change the tolerance of the curve, choose Fit tolerance. Continue to specify points of the spline. To complete the command, press Enter.

Enter tangent: Select a point to specify the tangency of the spline curve at the first point.

Enter tangent for ending point: When you create an open-ended spline entity, you are prompted to enter the tangent for the ending point. Select a point to specify the tangency of the spline curve at the end point.

To change the tolerance of the curve

Choose Fit tolerance.

Enter fit tolerance (in drawing units) <0.0000>: To accept the current setting, press Enter, or enter the tolerance of the curve.


Draw a spline

Specify the fit tolerance

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