Creating a surface

Create a NURBS surface. To do this, select the option Geometry->Create->NURBS surface->By contour. This option can also be found in the GiD Toolbar.
Select the lines that define the profile of the mechanical part and press ESC to create the surface.
Press ESC again to exit the function.

Creating a surface by contour

NOTE: To create a surface there must be a set of lines that define a closed contour.

GiD user manual