3 \page merging_nodes_page Merging nodes
5 This functionality allows user to detect groups of coincident nodes
6 with specified tolerance; each group of the coincident nodes can be
7 then converted to the single node.
9 \image html mergenodes_ico.png "Merge nodes menu button"
11 <em>To merge nodes of your mesh:</em>
13 <li>Choose \b Modification -> \b Transformation -> <b>Merge nodes</b>
14 menu item. The following dialog box shall appear:</li>
16 \image html mergenodes_auto.png
19 <li>\b Name is the name of the mesh whose nodes will be merged.</li>
20 <li>\b Automatic or \b Manual mode allows choosing how the nodes are
22 <li>\b Tolerance is a maximum distance between nodes sufficient for
24 <li>Activation of <b>No merge of corner and medium nodes</b> check-box
25 prevents merging medium nodes of quadratic elements with corner
26 nodes. This check-box is enabled provided that the selected mesh
27 includes quadratic elements.</li>
28 <li><b>Exclude Groups</b> group box allows to ignore the nodes which
29 belong to the specified mesh groups.</li>
30 <li><b>Nodes to keep</b> group box allows to specify nodes to keep in
31 the mesh. (By default a node being the first in a group of
32 coincident nodes is kept.) It is possible to either select nodes in
33 the Viewer or select groups of any element type whose nodes will be
36 <li>\a Selection button activates selection of nodes to keep.</li>
37 <li><b>Node IDs</b> button activates selection of nodes in the
39 <li><b>Groups and Sub-meshes</b> button activates selection of
40 groups and sub-meshes.</li>
41 <li>\b Add button adds selected nodes or groups to the list.</li>
42 <li> Nodes or groups selected in the list can be removed using \b
48 <li><b>Automatic mode:</b>
51 <li>In the \b Automatic Mode all Nodes within the indicated tolerance
52 will be merged. The nodes which belong to the groups specified in the
53 <b>Exclude Groups</b> will be not taken into account.</li>
56 <li> The \b Manual mode gives you full control of what the operation will do.
57 In this mode additional controls are available:
59 <li>\b Detect button generates the list of coincident nodes for the given
61 <li><b>Coincident nodes</b> is a list of groups of nodes for
62 merging. After the operation all nodes of each group will
63 be united into one node. The first node of a group is kept and
64 the others are removed.
66 <li>\b Remove button deletes the selected group from the list.</li>
67 <li>\b Add button adds to the list a group of nodes selected in the
68 viewer with pressed "Shift" key.</li>
69 <li><b>Select all</b> check-box selects all groups.</li>
70 <li><b>Show double nodes IDs</b> check-box shows/hides identifiers of
71 nodes of selected groups in the 3D viewer.</li>
75 \image html mergenodes.png
78 <li><b>Edit selected group</b> list allows editing the selected
82 <center>adds to the group the nodes selected in the viewer.</center>
84 \image html remove.png
85 <center>removes from the group the selected nodes.</center>
88 <center>moves the selected node to the first position in the
89 group in order to keep it in the mesh.</center><br>
93 <li>To confirm your choice click \b Apply or <b>Apply and Close</b> button.</li>
96 \image html merging_nodes1.png "The initial object"
98 \image html merging_nodes2.png "The object has been merged"
100 <br><b>See Also</b> a sample TUI Script of a
101 \ref tui_merging_nodes "Merge Nodes" operation.