/*! \page double_nodes_page Duplicating Nodes \n This operation allows to duplicate nodes of your mesh. <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: <ol> <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 builded.</li> </ol> <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: <ol> <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 builded.</li> </ol> <br><b>See Also</b> a sample TUI Script of a \ref tui_duplicate_nodes "Duplicate nodes" operation. */