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<a name = "hj-top"> </a><table class = "table1" id = "table11"><tr><td><table class = "DocHeader"><tr><td class = "DocHeader1" colspan = "2"><h1>Filter Settings</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 = "shortdesc">
The filter technique for the objective and constraint functions can be changed using
the parameter <code class = "ph codeph">FILTER_TYPE</code> in the optimization settings
(<code class = "ph codeph">OPT_PARAM</code> command).
<p>This page discusses: </p><ul><li><a href = "#tso-c-user-TopOpt-Sett-Sensi-FilTyp__" id = "toc_rg" title = "">Filter Type</a></li><li><a href = "#tso-c-user-TopOpt-Sett-Sensi-FilTyp__" id = "toc_rg" title = "">Filter Group</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 = "Defines parameters to control optimization." href = "../TsoCmdMap/tso-r-cmd-optParam.htm#tso-r-cmd-optParam">OPT_PARAM</a></td></tr></table></td></tr></table>



<div class = "body conbody">
<div class = "section"><h2 class = "title sectiontitle">Filter Type</h2>

<p>The <code class = "ph codeph">FILTER_TYPE</code> can be set to <code class = "ph codeph">AUTO</code>, <code class = "ph codeph">SENS</code>,
               <code class = "ph codeph">DV</code>, or <code class = "ph codeph">DV_LEGACY</code>, respectively.</p>
<p><code class = "ph codeph">AUTO</code> defines automatic selection of the applied filter type as recommended by 
   <span class = "ph">SIMULIA Tosca Structure</span>.</p>
<p>The option <code class = "ph codeph">SENS</code> applies the filter to the sensitivities.</p>
<p>The option <code class = "ph codeph">DV</code> applies the filter to the design variables.</p>
<p>Using the option <code class = "ph codeph">DV_LEGACY</code>, applies an older version of the design variable
            filter. Use this option to achieve similar results to version 2020x and before.</p>

<p>
<table class = "Remark" id = "table132"><tr><td class = "Remark"><span class = "run-in.important">Important:
				</span><span class = "notecontent">
<ul class = "ul">
<li class = "li">Changing the filter type has no effect when the objective is to minimize the mass.</li>
<li class = "li">Changing the filter type has no effect when manufacturing constraints are present.</li>
</ul>
</span></td></tr></table>

</p>
</div>

<div class = "section"><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">Filter Group</h2>

<p>The <code class = "ph codeph">FILTER_GROUP</code> can be set to <code class = "ph codeph">AUTO</code>, <code class = "ph codeph">ALL</code>, or
               <code class = "ph codeph">DESIGN_AREA</code>, respectively.</p>
<p><code class = "ph codeph">AUTO</code> defines automatic selection of element groups to be filtered as recommended by
   <span class = "ph">SIMULIA Tosca Structure</span>.</p>
<p>The option <code class = "ph codeph">ALL</code> lets the filter take all elements into account.</p>
<p>The option <code class = "ph codeph">DESIGN_AREA</code> defines that only the elements that are contained in the
            design area are taken into account when filtering.</p>

</div>

</div>

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