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• . 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.

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