<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html
  SYSTEM "about:legacy-compat">
<html xmlns:mml = "http://www.w3.org/1998/Math/MathML" lang = "en"><head><meta charset = "UTF-8"/><meta name = "copyright" content = "(C) Copyright 2020"/><meta name = "DC.rights.owner" content = "(C) Copyright 2020"/><meta name = "DC.type" content = "concept"/><meta name = "abstract" content = "This section describes details to each front end."/><meta name = "description" content = "This section describes details to each front end."/><meta name = "DC.relation" scheme = "URI" content = "../TsoCmdMap/tso-r-cmd-select.htm"/><meta name = "DC.relation" scheme = "URI" content = "../TsoCmdMap/tso-r-cmd-groupDef.htm"/><meta name = "DC.relation" scheme = "URI" content = "../TsoCmdMap/tso-r-cmd-options.htm"/><meta name = "DC.format" content = "HTML5"/><meta name = "DC.identifier" content = "tso-c-usr-model-groupDefDetailed"/><meta name = "DC.language" content = "en"/><link rel = "stylesheet" type = "text/css" href = "../DSDocUI_XML34.css"/><title>Group Definition in Detail</title>
<script type = "text/javascript" src = "../DSDocUI_Highlight34.js">
  	/* */
  	</script></head><body onLoad = "highlightSearchTerms();" id = "tso-c-usr-model-groupDefDetailed">
<a name = "hj-top"> </a><table class = "table1" id = "table11"><tr><td><table class = "DocHeader"><tr><td class = "DocHeader1" colspan = "2"><h1>Group Definition in Detail</h1></td></tr><tr><td class = "DocHeader4" colspan = "2"/></tr><tr><td class = "DocHeader3"><table class = "DocHeaderIntro" id = "table12"><tr><td class = "Intro1Only"><p class = "header"><p class = "abstract">
<span class = "shortdesc">This section describes details to each front end.</span>

</p>
<p>This page discusses: </p><ul><li><a href = "#tso-c-usr-model-groupDefDetailed__tso-c-usr-model-groupDefDetailled-gui" id = "toc_rg" title = "">Manual Group Definition in <span class = "ph">Tosca Structure.gui</span></a></li><li><a href = "#tso-c-usr-model-groupDefDetailed__tso-c-usr-model-groupDefDetailled-whitespace" id = "toc_rg" title = "">White Space in Group Names</a></li><li><a href = "#tso-c-usr-model-groupDefDetailed__tso-c-usr-model-groupDefDetailled-specialchar" id = "toc_rg" title = "">Special Characters in Group Names</a></li></ul>
</p></td></tr></table></td><td class = "DocHeader2"><table class = "DocTopicsSeeAlso" id = "table13"><tr><td class = "TopicsTitle">See Also</td></tr></table><table class = "DocTopicsInOtherGuides" id = "table14"><tr><td height = "8px"/></tr><tr><td class = "TopicsTitleNormal">In Other Guides</td></tr><tr><td><a title = "Selects subsets of different types of objects (solids, nodes, elements etc). These subsets can be combined to a group with the command GROUP_DEF. All commands have only reference to the selected (active) objects." href = "../TsoCmdMap/tso-r-cmd-select.htm">SELECT</a></td></tr><tr><td><a title = "Manual definition of groups by lists of elements or nodes, materials, or properties or by assigning a previously defined selection." href = "../TsoCmdMap/tso-r-cmd-groupDef.htm">GROUP_DEF</a></td></tr><tr><td><a title = "Determines the attributes (nodal boundary conditions) of the FE model that should be loaded in TOSCA_PREP and TOSCA_OPT and which other actions should be considered during loading (for example, automatic determination of the surface nodes). This command must be defined before the FEM_INPUT command in the parameter file to be known during model import." href = "../TsoCmdMap/tso-r-cmd-options.htm">OPTIONS</a></td></tr></table></td></tr></table>




<div class = "body conbody">

<div class = "section" id = "tso-c-usr-model-groupDefDetailed__tso-c-usr-model-groupDefDetailled-gui"><h2 class = "title sectiontitle">Manual Group Definition in <span class = "ph">Tosca Structure.gui</span></h2>

<p>In <span class = "ph">Tosca Structure.gui</span>
node and element groups can be defined manually using lists of node IDs
or element IDs in the <code class = "ph codeph">GROUP_DEF</code> command:</p>
<pre class = "codeblock">
GROUP_DEF
 ID_NAME = ndgr_name
 TYPE    = NODE
 FORMAT  = LIST
 LIST_BEGIN
 1,2,5,3000,...
END_
</pre>
<p>Changing the <code class = "ph codeph">TYPE</code> to <code class = "ph codeph">ELEM</code> assembles
the elements with the numbers listed into the group. Further, a list
of materials or properties can be specified using the <code class = "ph codeph">LIST_MAT</code>
or <code class = "ph codeph">LIST_PROP</code> entry for <code class = "ph codeph">FORMAT</code> to combine
all nodes or elements related to the listed materials or properties.</p>
<p> In combination with the command <code class = "ph codeph">SELECT,...</code> 
(see <a class = "xref" href = "tso-m-usr-model-dataLoadOptions-sb.htm" title = "The default settings for loading the FE data can be changed with the OPTIONS command.">Options for Loading FE Data (OPTIONS)</a> ) more
complex group definitions are possible. To this end, the nodes (or elements) to be included in
the group must first be selected according to their numbers, geometric position, belonging to a
certain area etc., sometimes using several <code class = "ph codeph">SELECT</code> commands sequentially to
collect specific nodes or elements in the selection list.</p>
<p>Later, the group is defined with <code class = "ph codeph">GROUP_DEF</code>. A typical command sequence appears as follows:</p>
<pre class = "codeblock">
SELECT,<span class = "ph uicontrol">NODE</span>,S,...
GROUP_DEF
 ID_NAME = ndgr_name
 TYPE    = NODE
 FORMAT  = SELECTED
END_
</pre>
<p>The group is given a unique user-defined name. </p>
<p>In addition, it is possible to combine and subtract existing groups (either nodes or elements) to
    create new groups.</p>
<p>For combining groups (GroupD = GroupA + GroupB + GroupC):</p>
<pre class = "codeblock">
<code class = "ph codeph">
GROUP_DEF
 ID_NAME = GroupD
 TYPE    = ELEM
 FORMAT  = LIST_GROUP
 LIST_BEGIN  
GroupA, GroupB, GroupC
END_
</code>
</pre>
<p>For subtracting groups (GroupD = GroupA - GroupB - GroupC):</p>
<pre class = "codeblock">
<code class = "ph codeph">
GROUP_DEF
 ID_NAME = GroupD
 TYPE    = ELEM
 FORMAT  = LIST_SUBTRACT_GROUP
  LIST_BEGIN
GroupA, GroupB, GroupC
END_
</code>
</pre>
</div>


<div class = "section" id = "tso-c-usr-model-groupDefDetailed__tso-c-usr-model-groupDefDetailled-whitespace"><p><map name = "FPMap1"><area href = "#hj-top" title = "Back to Top" shape = "rect" coords = "416, 0, 435, 10"/></map><span class = "itemsprite"/></p><h2 class = "title sectiontitle">White Space in Group Names</h2>

<p><span class = "ph">SIMULIA Tosca Structure</span> now supports white space in group names. </p>
<p> Example: Having an FE input file with a group definition like "Group One," then <span class = "ph">Tosca</span> refers to
    it with the origin name, including the white space. Be careful, the <span class = "ph">Tosca</span> behavior has changed
    in this point: In previous releases, the white space was replaced by an underscore "_" and the
    group was referenced with "Group_One" (consider the underscore _). For backward compatibility
    reasons, two groups are created if a group name contains blanks: The first group has the blanks
    in its name and the second group name is with underscores "_". This behavior can be turned off
    by using
<pre class = "codeblock">
OPTIONS
 GROUP_NAME_COMPATIBILITY = NO
END_
</pre>
 </p>
</div>


<div class = "section" id = "tso-c-usr-model-groupDefDetailed__tso-c-usr-model-groupDefDetailled-specialchar"><p><map name = "FPMap1"><area href = "#hj-top" title = "Back to Top" shape = "rect" coords = "416, 0, 435, 10"/></map><span class = "itemsprite"/></p><h2 class = "title sectiontitle">Special Characters in Group Names</h2>

<p><span class = "ph">SIMULIA Tosca Structure</span>
   supports group names in the following format using quotation marks, parentheses, and white
   spaces.
  <pre class = "codeblock">
<code class = "ph codeph">
GROUP = “group name (1)”
</code>
</pre>
   </p>
</div>

</div>


<div class = "related-links"/>
</td></tr></table><script type = "text/javascript" src = "../DSDocUI_Bottom34.js">/* */</script></body>
</html>
