GGU-SLAB: "In section (displacement)" menu item

After selecting this menu item several FEM nodes can be simultaneously assigned a displacement boundary condition in a defined section, or an existing boundary condition be deleted. First select the type of displacement boundary condition. Then click four points in an anti-clockwise direction using the left mouse button. The right mouse button will undo. The definition refers to all nodes within the quadrilateral. The desired action can then be selected in a dialog box..

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