The Curve mark enables the end user to use spline curve drawings. With this mark, end users create spline curves between the specified points and using the specified tension.

Edit Mode

In Edit mode, end users create this mark as follows:

1. Click where you want the curve to start.
2. Drag to the location of a vertice and click.
3. Drag and click to create each additional vertice.
4. Double-click the location where the curve ends.