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104 lines
3.6 KiB
Plaintext
104 lines
3.6 KiB
Plaintext
/*!
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\page merging_nodes_page Merging nodes
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This functionality allows user to detect groups of coincident nodes
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with specified tolerance; each group of the coincident nodes can be
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then converted to the single node.
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\image html mergenodes_ico.png "Merge nodes menu button"
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<em>To merge nodes of your mesh:</em>
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<ol>
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<li>Choose \b Modification -> \b Transformation -> <b>Merge nodes</b>
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menu item. The following dialog box shall appear:</li>
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<br>
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\image html mergenodes_auto.png
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<br>
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<ul>
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<li>\b Name is the name of the mesh whose nodes will be merged.</li>
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<li>\b Automatic or \b Manual mode allows choosing how the nodes are
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processed.
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<li>\b Tolerance is a maximum distance between nodes sufficient for
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merging.</li>
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<li>Activation of <b>No merge of corner and medium nodes of quadratic
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cells</b> check-box prevents merging medium nodes of quadratic
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elements with corner nodes. This check-box is enabled provided
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that the selected mesh includes quadratic elements.</li>
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<li><b>Exclude Groups</b> group box allows to ignore the nodes which
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belong to the specified mesh groups.</li>
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<li><b>Nodes to keep</b> group box allows to specify nodes to keep in
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the mesh. (By default a node being the first in a group of
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coincident nodes is kept.) It is possible to either select nodes in
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the Viewer or select groups of any element type whose nodes will be
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kept.
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<ol>
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<li>\a Selection button activates selection of nodes to keep.</li>
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<li><b>Node IDs</b> button activates selection of nodes in the
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Viewer.</li>
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<li><b>Groups and Sub-meshes</b> button activates selection of
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groups and sub-meshes.</li>
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<li>\b Add button adds selected nodes or groups to the list.</li>
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<li> Nodes or groups selected in the list can be removed using \b
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Remove button.</li>
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</ol>
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</li>
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</ul>
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<li><b>Automatic mode:</b>
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<br>
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<ul>
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<li>In the \b Automatic Mode all Nodes within the indicated tolerance
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will be merged. The nodes which belong to the groups specified in the
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<b>Exclude Groups</b> will be not taken into account.</li>
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</ul>
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</li><br>
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<li> The \b Manual mode gives you full control of what the operation will do.
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In this mode additional controls are available:
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<ul>
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<li>\b Detect button generates the list of coincident nodes for the given
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\b Tolerance.</li>
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<li><b>Coincident nodes</b> is a list of groups of nodes for
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merging. After the operation all nodes of each group will
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be united into one node. The first node of a group is kept and
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the others are removed.
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<ul>
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<li>\b Remove button deletes the selected group from the list.</li>
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<li>\b Add button adds to the list a group of nodes selected in the
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viewer with pressed "Shift" key.</li>
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<li><b>Select all</b> check-box selects all groups.</li>
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<li><b>Show double nodes IDs</b> check-box shows/hides identifiers of
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nodes of selected groups in the 3D viewer.</li>
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</ul>
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<br>
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\image html mergenodes.png
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<br>
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</li>
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<li><b>Edit selected group</b> list allows editing the selected
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group:
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<br><br>
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\image html add.png
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<center>adds to the group the nodes selected in the viewer.</center>
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<br>
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\image html remove.png
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<center>removes from the group the selected nodes.</center>
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<br>
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\image html sort.png
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<center>moves the selected node to the first position in the
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group in order to keep it in the mesh.</center><br>
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</li>
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</ul>
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</li>
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<li>To confirm your choice click \b Apply or <b>Apply and Close</b> button.</li>
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</ol>
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\image html merging_nodes1.png "The initial object"
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\image html merging_nodes2.png "The object has been merged"
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<br><b>See Also</b> a sample TUI Script of a
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\ref tui_merging_nodes "Merge Nodes" operation.
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*/
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