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<h1>Creating groups</h1>

<p class="whs1"><img src="../i_blue.jpg" x-maintain-ratio="TRUE" width="30px" height="30px" border="0" class="img_whs2"> &nbsp;&nbsp;<span 
 style="font-weight: normal;">In MESH you 
 can create groups of elements of different types. To create a group of 
 elements</span><span style="font-weight: normal; margin-left: 40px;"> 
 in the </span><span style="margin-left: 40px;">Mesh</span><span style="font-weight: normal; margin-left: 40px;"> 
 menu select </span><span style="margin-left: 40px;">Create Group</span><span 
 style="font-weight: normal; margin-left: 40px;">.</span><span style="margin-left: 40px;"> 
 </span></p>

<p class="whs3">To create any group 
 you should define the following: &nbsp;&nbsp;</p>

<ul type="disc" class="whs4">
	
	<li class=kadov-p><p class="whs5">Mesh: 
 <span style="font-weight: normal;">the name of the mesh whose elements 
 will form your group. You can select your mesh in the Objet Browser or 
 in the 3D viewer.</span></p></li>
	
	<li class=kadov-p><p class="whs3"><span 
 style="font-weight: bold;"><B>Elements</B></span> <span style="font-weight: bold;"><B>Type</B></span> 
 set of radio buttons allows to select the type of elements which will 
 form your group:</p></li>
	
	<ul type="disc" class="whs4">
		
		<li class=kadov-p><p class="whs6">Nodes</p></li>
		
		<li class=kadov-p><p class="whs6">Edges 
 </p></li>
		
		<li class=kadov-p><p class="whs6">Faces</p></li>
		
		<li class=kadov-p><p class="whs6">Volumes</p></li>
	</ul>
	
	<li class=kadov-p><p class="whs3"><span 
 style="font-weight: bold;"><B>Name </B></span>field allows to enter the name 
 of your new group.</p></li>
</ul>

<p class="whs3">SALOME Platform distinguishes 
 between the two Group types: <span style="font-weight: bold;"><B>Standalone 
 Group</B></span> and <span style="font-weight: bold;"><B>Group on Geometry</B></span>. 
 &nbsp;</p>

<h3>Standalone Group </h3>

<p class="whs7">The box for creation of a <span style="font-weight: bold;"><B>Standalone 
 Group</B></span> appears by default. <span style="font-weight: bold;"><B>Standalone 
 Group</B></span> consists of mesh elements, which you can define in two possible 
 ways.</p>

<ul type="disc" class="whs4">
	
	<li class=kadov-p><p class="whs8">Choosing them manually 
 with the mouse in the 3D Viewer. You can click on an element in the 3D 
 viewer and it will be highlighted. After that click the <span style="font-weight: bold;"><B>Add 
 </B></span>button and the ID of this element will be added to the list. </p></li>
	
	<li class=kadov-p><p class="whs7">Applying Filters. The 
 <span style="font-weight: bold;"><B>Set filter </B></span>button allows to apply 
 a definite filter to selection of the elements of your group. See more 
 about filters on the <a href="../selection_filter_library.htm">Selection 
 filter library</a> page. &nbsp;&nbsp;</p></li>
</ul>

<p class="whs7">To remove a selected element or elements 
 from the list click the <span style="font-weight: bold;"><B>Remove </B></span>button. 
 The <span style="font-weight: bold;"><B>Sort List </B></span>button allows to 
 sort the list of IDs of mesh elements. </p>

<p class="whs7"><span style="font-weight: bold;"><B>Select from 
 </B></span>set of fields allows to choose a submesh or an existing group whose 
 elements of the previously defined type will be added to the list of elements 
 which will form your group.</p>

<p class="whs7">&nbsp;</p>

<table x-use-null-cells cellspacing="0" width="100%" class="whs9">
<col class="whs10">
<col class="whs11">

<tr valign="top" class="whs12">
<td width="33.382%" class="whs13">
<p class="whs1"><img src="../pics/creategroup.png" x-maintain-ratio="TRUE" width="312px" height="565px" border="0" class="img_whs14"></td>
<td width="66.618%" class="whs15">
<p class="whs16"><img src="../image130.gif" width="145px" height="150px" align="left" border="0" class="img_whs17"> &nbsp;&nbsp;</p>
<p class="whs16">&nbsp;</p>
<p class="whs16">&nbsp;</p>
<p class="whs16">&nbsp;</p>
<p class="whs16">&nbsp;</p>
<p class="whs16">&nbsp;</p>
<p class="whs16">In this picture the brown cells belong to 
 a group defined manually.</p>
<p class="whs16">&nbsp;</p>
<p class="whs16">&nbsp;<img src="../image131.gif" width="149px" height="158px" border="0" class="img_whs18"> In this picture the brown cells belong to the group defined 
 by the criterion <br>
Taper &gt; 0. </p>
<p class="whs16">&nbsp;</p>
<p class="whs16">&nbsp;</td></tr>
</table>

<p class="whs7">&nbsp;</p>

<p class="whs5">&nbsp;&nbsp;&nbsp;See 
 Also a sample TUI Script of a <a href="../grouping_elements.htm#bookmark">Create 
 a Standalone Group</a> operation. &nbsp;</p>

<h3>Group on Geometry </h3>

<p class="whs3">To create a group on 
 geometry check <span style="font-weight: bold;"><B>Group on geometry</B></span> 
 in the <span style="font-weight: bold;"><B>Group type</B></span> field. <span 
 style="font-weight: bold;"><B>Group on geometry </B></span>contains the elements 
 of a certain type belonging to the selected<span style="font-weight: bold;"> 
 <B></B></span>geometrical object. To define a group select in the Objet Browser 
 or in the 3D viewer a geometrical object from which the elements will 
 be taken. After confirmation of the operation MESH will create a new group 
 of mesh elements.</p>

<p class="whs3">&nbsp;</p>

<table x-use-null-cells cellspacing="0" width="100%" class="whs9">
<col class="whs19">
<col class="whs20">

<tr valign="top" class="whs12">
<td width="33.48%" class="whs21">
<p><img src="../pics/a-creategroup.png" x-maintain-ratio="TRUE" width="312px" height="312px" border="0" class="img_whs22"></td>
<td width="66.52%" class="whs23">
<p><img src="../image132.gif" width="135px" height="150px" border="0" class="img_whs24"> In this picture the cells which belong to a certain face 
 are selected in green. </td></tr>
</table>

<p class="whs3">&nbsp;</p>

<p class="whs6">&nbsp;&nbsp;&nbsp;See 
 Also a sample TUI Script of a <a href="../grouping_elements.htm#bookmark5">Create 
 a Group on Geometry</a><a href="../grouping_elements.htm#bookmark"> </a>operation. 
 &nbsp;</p>

<p>&nbsp;</p>

<p>&nbsp;</p>

<p class="whs16">&nbsp;</p>

<p class="whs25">&nbsp;</p>

<p>&nbsp;</p>

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