Import DataDoctor > Geometry and Topology Structure Tree > About Performing Various Tasks on GTS Tree Nodes
  
About Performing Various Tasks on GTS Tree Nodes
You can perform the following operations on the nodes of the GTS Tree:
• Activate—You can activate any single node on the GTS Tree except for Datum nodes. You can also activate a surface subset of a single component node. To activate a node or nodes, select the nodes on the GTS Tree, right-click, and click Activate on the shortcut menu or click Activation > Activate on the Structure tab. When you activate a node, although the display of the GTS tree structure does not change, functionally the node becomes the top-level node. All connections to the active node geometry, except the component surface subset that is activated, are removed. Active nodes are identified by on the GTS Tree.
• Deactivate—You can deactivate any active node on the GTS Tree. To deactivate a node, right-click the node, and click Deactivate or click Activation > Deactivate on the Structure tab. Deactivate is available regardless of whether anything in the selection bin or not; you do not have to select the active node to deactivate it. When you deactivate an active node, Import DataDoctor restores all the connections that the node had before it was activated. You can also activate another node to deactivate the currently active node without explicitly deactivating it.
• Detach—You can detach any set of sub nodes of a component or combine node, at any level of the GTS tree. Detaching nodes containing surface geometry removes all connections to those surfaces. Detached nodes are automatically made base-level nodes on the tree. However, individual datum nodes are placed in the Datums Bin node. If multiple leaf surfaces nodes are detached, a new base-level component node containing these surfaces is created. Connections among the detached surfaces themselves are maintained in this new component. To detach a node or nodes from its parent node, select the node on the GTS Tree, right-click, and click Detach on the shortcut menu or click Detach on the Structure tab.
 
* You cannot detach nodes from component or combine nodes that are part of a merge node unless they have been explicitly activated.
• Divide—You can only divide component nodes. To perform a divide operation, select a surface or surfaces of the component in the graphics window or on the GTS Tree, right-click, and click Divide on the shortcut menu or click Divide on the Structure tab. This results in the creation of a combine node consisting of two components; the original component without the surfaces that you selected for Divide, and a new component containing the selected surfaces. If only one surface is selected for the divide operation, the combine is between that leaf surface and the original component.
• Combine—You can perform a combine operation on two or more nodes on the GTS Tree. To combine nodes, select two or more nodes on the GTS Tree, right-click, and click Combine on the shortcut menu or click Combine on the Structure tab. All the selected nodes must be subnodes of the same parent node on the GTS Tree. When you combine two or more nodes, IDD creates a combine node and the selected nodes become subnodes of the combine node. You cannot combine merge nodes.
• Merge—You can perform a merge operation on any two nodes that represent valid quilts. Unlike the merge feature in the part mode, you cannot merge more than two quilts at a time in IDD. To perform a merge, select two nodes on the GTS Tree, right-click, and click Merge on the shortcut menu or click Merge on the Structure tab. The selected nodes must be base-level nodes. When you merge two nodes, IDD creates a new base level merge node and the selected nodes become subnodes of the merge node.
• Collapse—You can perform a collapse operation on a combine or merge node at any level of the GTS tree. Select a combine or merge node, right-click, and click Collapse or click Collapse on the Structure tab. It effectively replaces the branch with a single component node containing all of the leaf surfaces and datum nodes of the collapsed branch.
• Convert To Combine—You can convert a merge node to a combine node. To do so, select the merge node, right-click, and click Convert To Combine or click Structure > Convert To Combine on the Import DataDoctor tab. When you convert a merge node to a combine node, no geometric changes occur to the structure of the GTS Tree. The converted merge nodes maintain the same place on the GTS tree that they had prior to conversion. However, the quilts involved in the merge are permanently trimmed to their merged state. If the combine connection is deleted or temporarily disabled, the geometry of the node before the merge operation is not restored.
• Include—When you include an excluded surface node, it is added to the tree as a new base node. To include an excluded node, select the excluded node on the GTS Tree, right-click, and click Include on the shortcut menu or click Structure > Include on the Import DataDoctor tab. When you select an excluded node on the GTS Tree, the node appears in the graphics window as a red mesh.
• Exclude—You can exclude any surface node. When you exclude a node, the selected nodes are detached from the imported model, placed under exclude component node, and are hidden in the graphics window. The excluded component node is retained with the model even if you quit IDD. To exclude a node, select the node, right-click, and click Exclude on the shortcut menu or click Structure > Exclude on the Import DataDoctor tab.
• Hide—You can hide any base level or active node. You can hide any datum node, even if it is not a base-level node. Select one or more nodes on the GTS Tree to hide, right-click the nodes, and click Hide on the shortcut menu. Alternatively, click View > Visibility > Hide. When you hide one or more nodes, the nodes are temporarily hidden in the graphics window.
• Unhide—You can perform an unhide operation on any of the hidden nodes on the GTS Tree. To unhide hidden nodes, select the hidden node or nodes on the GTS Tree, right-click, and click UnHide on the shortcut menu. Alternatively, click View > Visibility > Unhide > Unhide or Unhide All. When you unhide one or more nodes, the nodes appear in the graphics window.
 
* You can hide or unhide embedded datum nodes, regardless of the type of branch node to which they belong.
• Isolate—You can isolate only base nodes or active nodes. To isolate a node, select the node, right-click, and click Isolate on the shortcut menu. When you isolate a node, all other nodes on the GTS Tree are hidden except the selected node and its sub nodes.