To Create an Edge-defined Coons Surface Patch Mesh

1. Click Modeling tab > Mesh panel > Modeling, Meshes, Edge Surface.
2. Select four objects to define the four adjoining edges of the mesh patch.

   The objects can be arcs, lines, polylines, splines, or elliptical arcs that form a closed loop and share endpoints.

   The first edge you select determines the M direction of the mesh.