Sketcher > Modifying a Section > Modifying a Spline > To Sparse a Spline
  
To Sparse a Spline
1. Select the spline you want to modify.
2. Right-click in the Sketcher window and choose Modify on the shortcut menu. The Spline tab opens.
3. Click Fit > Sparse.
4. Type the sparsity deviation value and click .