In certain cases, a profile of a line tolerance is used as one segment in a multiple single$-$segment profile tolerance. In this case, the profile of a surface tolerance in the lower segment controls the size, location, and orientation of the conical surface. The profile of a line tolerance in the upper segment controls the orientation and form of the line elements $($in one direction$)$ of the conical surface.In certain cases, a profile of a line tolerance is used as one segment in a multiple single$-$segment profile tolerance. In this case, the profile of a surface tolerance in the lower segment controls the size, location, and orientation of the conical surface. The profile of a line tolerance in the upper segment controls the orientation and form of the line elements $($in one direction$)$ of the conical surface.