Creates a construction surface using boundary elements you define. The boundary elements can be curves or edges and they must define a closed area (1). You can also specify whether any adjacent faces (2) are used to control tangency on the new bounded surface (3).

• The curve/edge set must form a closed loop.

• Adjacent faces can be used to control tangency on the new bounded surface.

• The preparation of edges/curves to be utilized may require the use of the derived curve and split curve commands.

• The keypoint curve command can be used to generate a boundary curve.