# Lofted Surface
With or without guide lines, surface features are generated between two or more profiles
Instructions for use:
Click 
to enter the loft surface command, and its interface is displayed as follows.
The functions of each control are as follows:
- Outlines： Can be curves, edges, sketches, polygons, and so on.
Note：
The outline must be curved continuously, such as a rectangle, and need to be rounded before it can be lofted.
Starting constraints： Position, tangent, tangent only available if the outline is an edge of a polygon.
Termination Constraint: Position, tangent, tangent only available if the outline is an edge of a polygon.
Guide line： One or more sketches, splines, etc., the guide line and outline must intersect, controlling the shape of the loft.
Note：The lofted profile cannot be in the same plane as the leader line.
Example： The lofted outline is a sketch and a projection curve, as shown in the following image.
Click OK to complete this operation, Cancel to exit this operation.