Creates
            curves on surface wherever two surfaces intersect.
         
         
         Edit NURBS > Intersect
                  Surfaces >   
 
            
            - Create Curves for
- 
                  First
                           Surface causes only the first surface selected (the target
                        surface) to receive a curve-on-surface.
                      Both
                           Surfaces causes the target surface and the surface selected
                        as the intersecting surface to both receive curves-on-surface. This
                        is the default.
                      NoteIf you select many
                           surfaces, the last selected is the target surface. For example,
                           if you select 10 surfaces, the first nine are intersected with the tenth.
                         
- Curve Type
- 
                  Curve
                           On Surface creates a curve-on-surface as the intersection
                        curve. This is the default.
                      3D
                           World creates a NURBS curve in 3D world space. The curve
                        is not a curve-on-surface and cannot be used to trim the surface
                        later on.
                      NoteText cannot be intersected
                           with a target surface because text is a collection of curves. You cannot
                           intersect a surface and curve. To intersect text, you must create
                           the text as trim surfaces. 
                         
- Use Tolerance
- 
                  The Use
                           Tolerance options let you intersect within a specified
                        tolerance of the default intersection. You can apply tolerance globally
                        or locally.
                      Global tolerance
                        causes Maya to use the Positional value in the Settings part of
                        the Preferences window.
                      Local tolerance
                        lets you enter a new value to override the value in the Preferences window.