OOF2: The Manual

6.2.279. OOF.Skeleton.PinNodes
	6.2. Menus

6.2.279. OOF.Skeleton.PinNodes

Pin and unpin nodes in a Skeleton.

Nodes that are pinned will not move during Skeleton modification operations. Pinning Nodes is one way of restricting the scope of future Skeleton modifications.

For example, some Nodes may be already positioned on a material boundary, but the shapes of the Elements in the interior of the material may need to be improved. Figure 6.50 shows the results of smoothing a Skeleton with and without pinned nodes.

Figure 6.50. Pinning Skeleton Noddes

A Skeleton that has been partially adapted to the underlying Microstructure.

The result of smoothing the Skeleton with the Nodes on the boundary of the circle pinned. (Smoothing was done for 5 iterations with alpha=0.3.)

The result of smoothing the Skeleton without first pinning the Nodes on the boundary of the circle. Notice that the boundary is much less well resolved than it had been.

	Note
	Whether or not a `Node` is pinned for the purpose of `Skeleton` modifications has no bearing on whether or not it will move when a `Mesh` is solved. That depends on the boundary conditions and the value of the displacement `Field`. `Node` pinning applies only to `Skeleton` modifications.

Parent Menu: OOF.Skeleton

OOF.Skeleton.PinNodes Menu Items

OOF.Skeleton.PinNodes.Invert -- Pin the unpinned and unpin the pinned.
OOF.Skeleton.PinNodes.Pin_Internal_Boundary_Nodes -- Pin all internal boundary nodes.
OOF.Skeleton.PinNodes.Pin_Node_Selection -- Pin selected nodes.
OOF.Skeleton.PinNodes.Pin_Selected_Elements -- Pin nodes of selected elements.
OOF.Skeleton.PinNodes.Pin_Selected_Segments -- Pin nodes of selected segments.
OOF.Skeleton.PinNodes.Redo -- Undo the undone pinning operation.
OOF.Skeleton.PinNodes.UnPin_Node_Selection -- Unpin selected nodes.
OOF.Skeleton.PinNodes.Undo -- Undo the pinning operation.
OOF.Skeleton.PinNodes.UnpinAll -- Unpin all nodes of the Skeleton.


OOF.Skeleton.Boundary.Rename		OOF.Skeleton.PinNodes.Invert