The Bezier Curve tool allows you to render curved lines based on the positions of
4 points.
Operation
To create a bezier curve, click on the image and drag the base curve to the desired
length. (A common mistake is to simply click in the paint area without dragging –
this will make
it much harder to customize your curve!)
With the curve sitting on the image, you can move the 4 points with your mouse until the
curve is the desired shape. You can change the color and formatting via the Format
menu at any time.
To place the curve on the image, press Enter or click outside of it. To cancel, press Esc.
See also: