Creating the Planar Development of a surface

After starting the Planar Development command, proceed as follows.
Please note that you can accomplish this task by loading sample file "planardevelopment.e3"

1	Select the surface to be developed. If the surface can be developed along both its parametric directions — like the one in this example —, an arrow will display one of the two possible development directions.
2	Specify a point to be used as the origin of the development. You can use the snap commands so as to snap to geometrically significant points on existing entities.
3	The Develop Along Shown Direction check box enables you to choose the development direction. When the box is cleared, the surface will be developed along the direction that is not displayed by the arrow:   When the box is checked, the surface will be developed along the direction shown by the arrow:
4	The Insert surface check box enables you to decide whether to create also the surface enclosed in the development curves or not: When the box is checked, the surface will be created.   When the box is cleared, the surface will not be created.
5	Click or to confirm your selections and create the surface. Click to discard your changes.