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\page double_nodes_page Duplicate Nodes

\n This operation allows to duplicate nodes of your mesh.
Duplication consists in replacement of an existing mesh element by another one.
Lower level elements of the duplicated ones are cloned
automatically. 

<em>To duplicate nodes:</em>
<ol>
<li>From the \b Modification menu choose \b Transformation -> \b Duplicate
\b Nodes item or click <em>"Duplicate Nodes"</em> button in the toolbar.
<br>
\image html duplicate_nodes.png "Duplicate Nodes button"
</li>
<li>Check in the dialog box one of two radio buttons corresponding to
the type of nodes duplication operation you would like to perform.</li>
<li>Fill the other fields available in the dialog box (depends on the chosen
 operation mode).</li>
<li>Click the \b Apply or <b>Apply and Close</b> button to perform the operation of nodes
 duplication.</li>
</ol>

\n "Duplicate Nodes" dialog has two working modes:
<ul>
<li>\ref mode_without_elem_anchor "Without the duplication of border elements"</li>
<li>\ref mode_with_elem_anchor "With the duplication of border elements"</li>
</ul>

<br>
\anchor mode_without_elem_anchor
<h2>Without duplication of border elements</h2>

In this mode the dialog looks like:

\image html duplicate01.png

Parameters to be defined in this mode:
<ul>
<li><b>Group of nodes to duplicate</b> (<em>mandatory</em>): these nodes will be duplicated.</li>
<li><b>Group of elements to replace nodes with new ones</b> (<em>optional</em>): the duplicated nodes
 will be associated with these elements.</li>
<li><b>Construct group with newly created nodes</b> option (<em>checked by default</em>): 
 if checked - the group with just created nodes will be built.</li>
</ul>

<br>
\anchor mode_with_elem_anchor
<h2>With duplication of border elements</h2>

In this mode the dialog looks like:

\image html duplicate02.png

Parameters to be defined in this mode:
<ul>
<li><b>Group of elements to duplicate</b> (<em>mandatory</em>): these elements will be duplicated.</li>
<li><b>Group of nodes at not to duplicate</b> (<em>optional</em>): group of nodes at crack bottom
 which will not be duplicated.</li>
<li><b>Group of elements to replace nodes with new ones</b> (<em>mandatory</em>): the duplicated nodes
 will be associated with these elements.</li>
<li><b>Construct group with newly created elements</b> option (<em>checked by default</em>): 
 if checked - the group with just created elements will be built.</li>
</ul>


<br><b>See Also</b> a sample TUI Script of a \ref tui_duplicate_nodes "Duplicate nodes" operation.  

*/