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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><span class = "ph">Tosca Structure.smooth</span></h1></td></tr><tr><td class = "DocHeader4" colspan = "2"/></tr><tr><td class = "DocHeader3" colspan = "2"><table class = "DocThemeIntro" id = "table12"><tr><td class = "Intro1"><p class = "header"><p class = "abstract">
<span class = "shortdesc"><span class = "ph">Tosca Structure.smooth</span>
takes the <code class = "ph codeph">ONF</code> files produced during the optimization
as input, generates the smooth isosurface or the model surface (depending
on settings and optimization type) and saves the surface in one or several
output formats.</span>

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</p><hr class = "header"/></td></tr><tr><td class = "Intro2"><span class = "run-in">In this section:</span><br/><ul class = "ulthemes"><li><a title = "The purpose of Tosca Structure.smooth is explained within this section." href = "tso-c-usr-validation-smooth-ov.htm">Overview</a></li><li><a title = "Tosca Structure.smooth prepares the optimization results for import into a CAD system or FE-preprocessor to be remeshed and used in a validation run." href = "tso-t-usr-validation-smooth-Start.htm">Starting Tosca Structure.smooth</a></li><li><a title = "As described in the previous section, there are different interfaces in Tosca Structure.gui where mostly the same set of parameters for smoothing can be defined." href = "tso-t-usr-validation-smooth-defPar.htm">Defining Parameters for Tosca Structure.smooth</a></li><li><a title = "Tosca Structure.smooth allows processing the design suggestion obtained by topology optimization in Tosca Structure. As the input, it takes the ONF model file and the ONF optimization result file, and produces the isosurface saved in one or more formats, suitable as input in CAD systems (STL, IGES and other) or as means for visualization (VTFX)." href = "tso-c-usr-validation-smooth-resTopo.htm">Processing Results of Topology Optimization</a></li><li><a title = "In the case of shape or bead optimization, Tosca Structure.smooth generates the surface of the model with calculated optimization displacements." href = "tso-c-usr-validation-smooth-resShapeBead.htm">Processing Results from Shape or Bead Optimization</a></li><li><a title = "Parameters, which control the generation and the smoothing of the isosurface are discussed within this section." href = "tso-c-usr-validation-smooth-isoPar.htm">Isosurface and Smoothing Parameters</a></li><li><a title = "Using the data reduction, the number of surface triangles can be reduced, or the triangles can be united pairwise in quadrilaterals. Data reduction is applicable to any surfaces generated by Tosca Structure.smooth; it also affects the original surface, but does not modify loaded nodes. By default, data reduction is turned off." href = "tso-c-usr-validation-smooth-redPar.htm">Reduction Parameters</a></li><li><a title = "After the surface is generated and (if necessary) the smoothing and data reduction are finished, it can be saved to the output file(s) in various formats. The output is controlled by parameters which are described in this section." href = "tso-c-usr-validation-smooth-outPar.htm">Output Parameters</a></li><li><a title = "Equidistant slices through the 3D model are often useful for a better postprocessing of optimization results. The generation of such slices is described within this section." href = "tso-c-usr-validation-smooth-slices.htm">Slices through 3D models and border of 2D models</a></li><li><a title = "In order to restrict the isocut and/or the surface calculation to certain areas of the model, the user might specify the groups of elements that should be used." href = "tso-c-usr-validation-smooth-groups.htm">Processing of Groups</a></li><li><a title = "Control of volume generating isosurfaces is described in this section." href = "tso-c-usr-validation-smooth-volContr.htm">Volume Control</a></li><li><a title = "In some cases, the topology optimization results contain small irregularities that are generally not desired. In order to deal with them, the filtering of the material distribution as well as the possibility to remove small unconnected components are implemented." href = "tso-c-usr-validation-smooth-defectsTopo.htm">Correction of Defects in Topology Optimization Results</a></li><li><a title = "When Tosca Structure.smooth is started from Tosca Structure.gui, the warnings and error messages are written in the file TOSCA.OUT in the subdirectory TOSCA_POST of the job directory. In Tosca Structure.gui, this information is also displayed in the lower part of &#34;Start Tosca Structure&#34; screen (if the Tosca Structure.pre screen is used for defining the Tosca Structure.smooth parameters) or, otherwise, in the Tosca Structure.smooth screen. These warnings and error messages describe the problems that occurred during the run of Tosca Structure.smooth, such as wrong parameter file syntax, missing input files or problems with creating output files. The parameter file for Tosca Structure.smooth created by Tosca Structure.gui is located in the job directory and has the name &lt;jobname&gt;_smooth.par; the information in the TOSCA.OUT file refers to the values from this parameter file." href = "tso-c-usr-validation-smooth-troubleShoot.htm">Troubleshooting</a></li></ul></td></tr></table></td></tr></table>

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