Spline

  1. Select Sketch | Lines | Spline. More options...Less options...
    • (OR) Select the context-sensitive function Line >  Open Spline.
  2. Select the spline curve’s start point.
  3. Select the next point.
  4. Select more points or finish the spline curve by pressing the middle mouse button.
    • You can also finish the spline curve by closing it, or selecting the start point as its end point.
  5. Draw more spline curves by repeating steps 2-4 or finish drawing spline curves by pressing the ESC key or the middle mouse button.