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113 <h1>Using operations on groups</h1>
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115 <p><span style="font-weight: bold;"><B><img src="../i_blue.jpg" x-maintain-ratio="TRUE" width="30px" height="30px" border="0" class="img_whs1"> </B></span>In MESH you can
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116 perform some Boolean operations on groups, which belong to one and the
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121 <ul type="disc" class="whs2">
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123 <li class=kadov-p><p class="whs3"><a href="#Union">Union</a>
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126 <li class=kadov-p><p class="whs3"><a href="#Intersection">Intersection</a></p></li>
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128 <li class=kadov-p><p class="whs3"><a href="#Cut">Cut</a></p></li>
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133 <h3><a name=Union></a>Union of two groups</h3>
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135 <p>This operation allows to create a new group in such a way that all mesh
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136 elements that are present in the initial groups will be added to the new
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141 <p class=TODO>To union two groups:</p>
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143 <p class=TODO> </p>
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145 <p class="whs4">1. In the <span style="font-weight: bold;"><B>Mesh
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146 </B></span>menu select the <span style="font-weight: bold;"><B>Union Groups </B></span>item.
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147 The following dialog box will appear:</p>
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149 <p class="whs4"> </p>
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151 <table x-use-null-cells cellspacing="0" width="100%" class="whs5">
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155 <tr valign="top" class="whs8">
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156 <td width="32.6%" class="whs9">
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157 <p><img src="../pics/uniongroups.png" x-maintain-ratio="TRUE" width="306px" height="253px" border="0" class="img_whs10"></td>
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158 <td width="67.4%" class="whs11">
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159 <p><img src="../image133.gif" width="134px" height="151px" border="0" class="img_whs12"> <img src="../image134.gif" width="136px" height="151px" border="0" class="img_whs13"> <img src="../image135.gif" width="133px" height="159px" border="0" class="img_whs14"></p>
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160 <p> Group1
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161 Group2
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162 Group12</p>
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164 <p>For example, we have two groups Group1 and Group2. </p>
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165 <p>The result of their <span style="font-weight: bold;"><B>Union</B></span> will
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166 be Group12 </td></tr>
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169 <p class="whs4"> </p>
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171 <p> <span style="margin-left: 40px;">In
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172 this dialog box you should specify the name</span><span style="margin-left: 40px; font-weight: bold;">
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173 <B></B></span><span style="margin-left: 40px;">of the resulting group and two
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174 groups which will be united.</span></p>
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176 <p class="whs4"> </p>
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178 <p class="whs4">2. Click the <span style="font-weight: bold;"><B>Ok
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179 </B></span>or <span style="font-weight: bold;"><B> Apply
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180 </B></span>button to confirm creation of the group. </p>
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184 <p class="whs15"><span style="font-weight: bold;"><B>See Also</B></span>
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185 a sample TUI Script of a <a href="../grouping_elements.htm#bookmark2">Union
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186 of two Groups</a> operation. </p>
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188 <p class="whs15"> </p>
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190 <p class="whs15"> </p>
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194 <h3><a name=Intersection></a>Intersection of two groups</h3>
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196 <p>This operation allows to create a new group in such a way that all mesh
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197 elements that are present in both initial groups are added to the new
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202 <p class=TODO>To intersect two groups:</p>
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204 <p class=TODO> </p>
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206 <p class="whs4">1. In the <span style="font-weight: bold;"><B>Mesh
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207 </B></span>menu select the <span style="font-weight: bold;"><B>Intersect Groups
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208 </B></span>item. The following dialog box will appear:</p>
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210 <p class="whs4"> </p>
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212 <table x-use-null-cells cellspacing="0" width="100%" class="whs5">
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214 <col class="whs17">
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216 <tr valign="top" class="whs8">
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217 <td width="32.796%" class="whs18">
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218 <p><img src="../pics/intersectgroups.png" x-maintain-ratio="TRUE" width="306px" height="253px" border="0" class="img_whs10"></td>
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219 <td width="67.204%" class="whs19">
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220 <p><img src="../image133.gif" width="134px" height="151px" border="0" class="img_whs12"> <img src="../image134.gif" width="136px" height="151px" border="0" class="img_whs13"><img src="../image136.gif" width="141px" height="157px" border="0" class="img_whs20"></p>
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221 <p> Group1
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222 Group2
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223 Group12a</p>
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225 <p>For example, we have two groups Group1 and Group2. </p>
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226 <p>The result of their <span style="font-weight: bold;"><B>Intersection</B></span>
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227 will be Group12a </td></tr>
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232 <p class="whs15">In this dialog box you should specify the
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233 name<span style="font-weight: bold;"> <B></B></span>of the resulting group and
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234 two groups which will be intersected.</p>
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236 <p class="whs4"> </p>
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238 <p class="whs4">2. Click the <span style="font-weight: bold;"><B>Ok
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239 </B></span>or <span style="font-weight: bold;"><B> Apply
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240 </B></span>button to confirm creation of the group. </p>
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244 <p> <span style="font-weight: bold;"><B>See
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245 Also</B></span> a sample TUI Script of an <a href="../grouping_elements.htm#bookmark3"> Intersection
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246 of two Groups</a> operation. </p>
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250 <h3><a name=Cut></a>Cut of two groups</h3>
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252 <p>This operation allows to create a new group in such a way that all mesh
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253 elements that are present in the main group but are absent in the tool
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254 group are added to the new one.</p>
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258 <p class=TODO>To cut two groups:</p>
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260 <p class=TODO> </p>
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262 <p class="whs4">1. In the <span style="font-weight: bold;"><B>Mesh
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263 </B></span>menu select the <span style="font-weight: bold;"><B>Cut Groups </B></span>item.
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264 The following dialog box will appear:</p>
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266 <p class="whs4"> </p>
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268 <table x-use-null-cells cellspacing="0" width="100%" class="whs5">
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269 <col class="whs21">
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270 <col class="whs22">
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272 <tr valign="top" class="whs8">
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273 <td width="33.089%" class="whs23">
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274 <p><img src="../pics/cutgroups.png" x-maintain-ratio="TRUE" width="306px" height="253px" border="0" class="img_whs10"></td>
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275 <td width="66.911%" class="whs24">
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276 <p><img src="../image133.gif" width="134px" height="151px" border="0" class="img_whs12"> <img src="../image134.gif" width="136px" height="151px" border="0" class="img_whs13"> <img src="../image137.gif" width="140px" height="146px" border="0" class="img_whs25"></p>
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277 <p> Group1
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278 Group2
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279 Group12b</p>
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281 <p>For example, we have two groups Group1 and Group2. </p>
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282 <p>The result of their <span style="font-weight: bold;"><B>Cut</B></span> will
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283 be Group12b </td></tr>
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288 <p class="whs4">In this dialog box you should specify the
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289 name<span style="font-weight: bold;"> <B></B></span>of the resulting group and
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290 two groups which will be cut.</p>
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292 <p class="whs4"> </p>
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294 <p class="whs4">2. Click the <span style="font-weight: bold;"><B>Ok
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295 </B></span>or <span style="font-weight: bold;"><B> Apply
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296 </B></span>button to confirm creation of the group. </p>
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300 <p> <span style="font-weight: bold;"><B>See
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301 Also</B></span> a sample TUI Script of a <a href="../grouping_elements.htm#bookmark3"> Cut
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302 of two Groups</a> operation. </p>
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