Curves > Fit Curves adjusts a curve line by decreasing its number of control points and/or tension.
Control Points integer field (available before a curve line is Executed) - allows the number of control points on a curve line to be reduced, not increased.
Tension decimal field (0.0 to 1.0; available before a curve line is Executed) - represents a trade-off between accuracy and smoothness. The higher the value, the smoother the curve line and the lower the adherence to original control points.
Execute button - applies the Control Points and Tension parameters to the selected curve line and deselects the selected curve line.
OK button - applies the Control Points and Tension parameters to the selected curve line, stores all curve lines to the object, and closes the dialog.
Cancel button - terminates the dialog without saving curve lines to the object.
Clear button - deselects the selected curve line.
To use the Fit Curve function:
Select Curves > Fit Curves. A dialog opens.
In the Viewing Area, click the curve line you want to modify.
Adjust the Control Points and/or Tension, the press Execute.
Click Execute to fit the curve.
Repeat steps 2 through 4 until you have made all the necessary adjustments to curve lines.
Click OK to accept the changes, or click Cancel to exit without saving changes.