Simplify Splines

Use the Simplify Spline tool to reduce the number of points in a spline and to increase system performance in models with complex spline curves.


You can also simplify splines that were created from imported models or from tools such as Convert Entities, Offset Entities, Intersection Curve, and Face Curves.

Simplifying Splines

To simplify a spline:

  1. In an open sketch, select the spline in the graphics area, then click Simplify Spline Tool_Simplify_Spline_Tools.gif (Spline Tools toolbar) or Tools > Spline Tools > Simplify Spline.
  2. Do one of the following:
    • In the dialog box, set a value for Tolerance and click OK.
    • Click Smooth to continue simplifying the spline. You can click Smooth until only two spline points remain. The SOLIDWORKS software:
      • Adjusts the tolerance and calculates a new curve with fewer spline points. The original spline is displayed in the graphics area along with a preview of the smoothed curve.
      • Displays the Number of spline points for In original and In simplified curve.
      • Displays the simplified Tolerance, which measures the intended deviation of the simplified curve from the original curve.
    Click Previous to return through the sequence as far as the original curve.
  3. Click OK.