Splitting a surface along an isoparametric curve through an arc joint

After starting the Split Surface command, proceed as follows.

1	In the Type drop-down list, select the Arc Joints method.
2	Select the surface. to change the selected surface, right-click on Surface, choose Reset in the context menu and select another surface.
3	The arc joints of the surface along the two parametric directions are displayed. Click on one of the arc joints: A preview of the isoparametric curve is immediately displayed. To change the selected arc joint, right-click on Point, choose Reset in the context menu and select another one.
4	Click or to confirm your selections and split the surface. Click to discard your changes.