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114 <h1>Creating groups</h1>
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116 <p class="whs1"><img src="../i_blue.jpg" x-maintain-ratio="TRUE" width="30px" height="30px" border="0" class="img_whs2"> <span
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117 style="font-weight: normal;">In MESH you
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118 can create groups of elements of different types. To create a group of
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119 elements</span><span style="font-weight: normal; margin-left: 40px;">
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120 in the </span><span style="margin-left: 40px;">Mesh</span><span style="font-weight: normal; margin-left: 40px;">
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121 menu select </span><span style="margin-left: 40px;">Create Group</span><span
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122 style="font-weight: normal; margin-left: 40px;">.</span><span style="margin-left: 40px;">
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125 <p class="whs3">To create any group
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126 you should define the following: </p>
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128 <ul type="disc" class="whs4">
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130 <li class=kadov-p><p class="whs5">Mesh:
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131 <span style="font-weight: normal;">the name of the mesh whose elements
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132 will form your group. You can select your mesh in the Objet Browser or
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133 in the 3D viewer.</span></p></li>
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135 <li class=kadov-p><p class="whs3"><span
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136 style="font-weight: bold;"><B>Elements</B></span> <span style="font-weight: bold;"><B>Type</B></span>
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137 set of radio buttons allows to select the type of elements which will
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138 form your group:</p></li>
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140 <ul type="disc" class="whs4">
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142 <li class=kadov-p><p class="whs6">Nodes</p></li>
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144 <li class=kadov-p><p class="whs6">Edges
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147 <li class=kadov-p><p class="whs6">Faces</p></li>
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149 <li class=kadov-p><p class="whs6">Volumes</p></li>
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152 <li class=kadov-p><p class="whs3"><span
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153 style="font-weight: bold;"><B>Name </B></span>field allows to enter the name
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154 of your new group.</p></li>
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157 <p class="whs3">SALOME Platform distinguishes
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158 between the two Group types: <span style="font-weight: bold;"><B>Standalone
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159 Group</B></span> and <span style="font-weight: bold;"><B>Group on Geometry</B></span>.
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162 <h3>Standalone Group </h3>
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164 <p class="whs7"><span style="font-weight: bold;"><B>Standalone
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165 Group</B></span> consists of mesh elements, which you can define in two possible
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168 <ul type="disc" class="whs4">
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170 <li class=kadov-p><p class="whs8">Choosing them manually
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171 with the mouse in the 3D Viewer. You can click on an element in the 3D
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172 viewer and it will be highlighted. After that click the <span style="font-weight: bold;"><B>Add
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173 </B></span>button and the ID of this element will be added to the list. </p></li>
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175 <li class=kadov-p><p class="whs7">Applying Filters. The
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176 <span style="font-weight: bold;"><B>Set filter </B></span>button allows to apply
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177 a definite filter to selection of the elements of your group. See more
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178 about filters on the <a href="../selection_filter_library.htm">Selection
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179 filter library</a> page. </p></li>
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182 <p class="whs7">To remove a selected element or elements
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183 from the list click the <span style="font-weight: bold;"><B>Remove </B></span>button.
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184 The <span style="font-weight: bold;"><B>Sort List </B></span>button allows to
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185 sort the list of IDs of mesh elements. </p>
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187 <p class="whs7"><span style="font-weight: bold;"><B>Select from
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188 </B></span>set of fields allows to choose a submesh or an existing group whose
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189 elements of the previously defined type will be added to the list of elements
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190 which will form your group. </p>
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192 <p class="whs7"><span style="font-weight: bold;"><B>Color Number</B></span>
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193 (integer only, ranging from 0 to 9999) - allows to assign to the group
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194 a certain index, for example, defining boundary conditions. This feature
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195 introduces a useful element of preprocessing in Mesh module. Note that
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196 <span style="font-weight: bold;"><B>Color number</B></span> attribute has nothing
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197 to do with the colors used for the display of the elements of the group.</p>
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199 <p class="whs7"> </p>
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201 <table x-use-null-cells cellspacing="0" width="100%" class="whs9">
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202 <col class="whs10">
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203 <col class="whs11">
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205 <tr valign="top" class="whs12">
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206 <td width="33.382%" class="whs13">
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207 <p class="whs1"><img src="../pics/creategroup.png" x-maintain-ratio="TRUE" width="312px" height="621px" border="0" class="img_whs14"></td>
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208 <td width="66.618%" class="whs15">
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209 <p class="whs16"><img src="../image130.gif" width="145px" height="150px" align="left" border="0" class="img_whs17"> </p>
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210 <p class="whs16"> </p>
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211 <p class="whs16"> </p>
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212 <p class="whs16"> </p>
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213 <p class="whs16"> </p>
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214 <p class="whs16"> </p>
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215 <p class="whs16">In this picture the brown cells belong to
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216 a group defined manually.</p>
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217 <p class="whs16"> </p>
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218 <p class="whs16"> <img src="../image131.gif" width="149px" height="158px" border="0" class="img_whs18"> In this picture the brown cells belong to the group defined
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219 by the criterion <br>
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221 <p class="whs16"> </p>
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222 <p class="whs16"> </td></tr>
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225 <p class="whs7"> </p>
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227 <p class="whs5"> See
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228 Also a sample TUI Script of a <a href="../grouping_elements.htm#bookmark">Create
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229 a Standalone Group</a> operation. </p>
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231 <h3>Group on Geometry </h3>
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233 <p class="whs3">To create a group on
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234 geometry check <span style="font-weight: bold;"><B>Group on geometry</B></span>
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235 in the <span style="font-weight: bold;"><B>Group type</B></span> field. <span
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236 style="font-weight: bold;"><B>Group on geometry </B></span>contains the elements
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237 of a certain type belonging to the selected<span style="font-weight: bold;">
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238 <B></B></span>geometrical object. To define a group select in the Objet Browser
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239 or in the 3D viewer a geometrical object from which the elements will
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240 be taken. After confirmation of the operation a new group of mesh elements
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241 will be created.</p>
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243 <p class="whs3"> </p>
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245 <table x-use-null-cells cellspacing="0" width="100%" class="whs9">
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246 <col class="whs19">
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247 <col class="whs20">
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249 <tr valign="top" class="whs21">
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250 <td width="33.48%" class="whs22">
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251 <p><img src="../pics/a-creategroup.png" x-maintain-ratio="TRUE" width="312px" height="312px" border="0" class="img_whs23"></td>
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252 <td width="66.52%" class="whs24">
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253 <p><img src="../image132.gif" width="135px" height="150px" border="0" class="img_whs25"> In this picture the cells which belong to a certain face
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254 are selected in green. </td></tr>
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257 <p class="whs3"> </p>
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259 <p class="whs6"> See
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260 Also a sample TUI Script of a <a href="../grouping_elements.htm#bookmark5">Create
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261 a Group on Geometry</a><a href="../grouping_elements.htm#bookmark"> </a>operation.
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268 <p class="whs16"> </p>
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270 <p class="whs26"> </p>
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