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108 <h1>Using operations on groups</h1>
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110 <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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111 perform Boolean
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112 operations on groups such as:</p>
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116 <ul type="disc" class="whs2">
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118 <li class=kadov-p><p class="whs3"><a href="#Union">Union</a>
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121 <li class=kadov-p><p class="whs3"><a href="#Intersection">Intersection</a></p></li>
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123 <li class=kadov-p><p class="whs3"><a href="#Cut">Cut</a></p></li>
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128 <h3><a name=Union></a>Union of two groups</h3>
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130 <p>This operation allows to create a new group in such a way that all mesh
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131 elements that are present in the initial groups will be added to the new
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136 <p class=TODO>To union two groups:</p>
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138 <p class=TODO> </p>
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140 <p class="whs4">1. In the <span style="font-weight: bold;"><B>Mesh
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141 </B></span>menu select the <span style="font-weight: bold;"><B>Union Groups </B></span>item.
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142 The following dialog box will appear:</p>
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144 <p class="whs4"> </p>
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146 <table x-use-null-cells cellspacing="0" width="100%" class="whs5">
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150 <tr valign="top" class="whs8">
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151 <td width="32.6%" class="whs9">
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152 <p><img src="../pics/uniongroups.png" x-maintain-ratio="TRUE" width="306px" height="253px" border="0" class="img_whs10"></td>
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153 <td width="67.4%" class="whs11">
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154 <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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155 <p>For example, we have two groups Group1 and Group2. </p>
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156 <p>The result of their Union will be Group12 </td></tr>
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159 <p class="whs4"> </p>
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161 <p> <span style="margin-left: 40px;">In
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162 this dialog box you should specify the name</span><span style="margin-left: 40px; font-weight: bold;">
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163 <B></B></span><span style="margin-left: 40px;">of the resulting group and two
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164 groups which will be united.</span></p>
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166 <p class="whs4"> </p>
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168 <p class="whs4">2. Click the <span style="font-weight: bold;"><B>Ok
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169 </B></span>or <span style="font-weight: bold;"><B> Apply
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170 </B></span>button to confirm creation of the group. </p>
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174 <p class="whs15"><span style="font-weight: bold;"><B>See Also</B></span>
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175 a sample TUI Script of a <a href="../grouping_elements.htm#bookmark2">Union
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176 of two Groups</a> operation. </p>
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178 <p class="whs15"> </p>
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180 <p class="whs15"> </p>
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184 <h3><a name=Intersection></a>Intersection of two groups</h3>
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186 <p>This operation allows to create a new group in such a way that all mesh
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187 elements that are present in both initial groups are added to the new
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192 <p class=TODO>To intersect two groups:</p>
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194 <p class=TODO> </p>
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196 <p class="whs4">1. In the <span style="font-weight: bold;"><B>Mesh
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197 </B></span>menu select the <span style="font-weight: bold;"><B>Intersect Groups
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198 </B></span>item. The following dialog box will appear:</p>
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200 <p class="whs4"> </p>
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202 <table x-use-null-cells cellspacing="0" width="100%" class="whs16">
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203 <col class="whs17">
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204 <col class="whs18">
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207 <td width="32.796%" class="whs19">
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208 <p><img src="../pics/intersectgroups.png" x-maintain-ratio="TRUE" width="306px" height="253px" border="0" class="img_whs20"></td>
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209 <td width="67.204%" class="whs21">
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210 <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_whs22"></p>
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211 <p>For example, we have two groups Group1 and Group2. </p>
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212 <p>The result of their Union will be Group12a </td></tr>
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217 <p class="whs15">In this dialog box you should specify the
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218 name<span style="font-weight: bold;"> <B></B></span>of the resulting group and
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219 two groups which will be intersected.</p>
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221 <p class="whs4"> </p>
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223 <p class="whs4">2. Click the <span style="font-weight: bold;"><B>Ok
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224 </B></span>or <span style="font-weight: bold;"><B> Apply
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225 </B></span>button to confirm creation of the group. </p>
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229 <p> <span style="font-weight: bold;"><B>See
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230 Also</B></span> a sample TUI Script of an <a href="../grouping_elements.htm#bookmark3"> Intersection
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231 of two Groups</a> operation. </p>
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235 <h3><a name=Cut></a>Cut of two groups</h3>
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237 <p>This operation allows to create a new group in such a way that all mesh
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238 elements that are present in the main group but are absent in the tool
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239 group are added to the new one.</p>
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243 <p class=TODO>To cut two groups:</p>
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245 <p class=TODO> </p>
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247 <p class="whs4">1. In the <span style="font-weight: bold;"><B>Mesh
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248 </B></span>menu select the <span style="font-weight: bold;"><B>Cut Groups </B></span>item.
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249 The following dialog box will appear:</p>
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251 <p class="whs4"> </p>
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253 <table x-use-null-cells cellspacing="0" width="100%" class="whs16">
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254 <col class="whs23">
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255 <col class="whs24">
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258 <td width="33.089%" class="whs19">
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259 <p><img src="../pics/cutgroups.png" x-maintain-ratio="TRUE" width="306px" height="253px" border="0" class="img_whs20"></td>
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260 <td width="66.911%" class="whs21">
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261 <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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262 <p>For example, we have two groups Group1 and Group2. </p>
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263 <p>The result of their Union will be Group12b </td></tr>
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268 <p class="whs4">In this dialog box you should specify the
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269 name<span style="font-weight: bold;"> <B></B></span>of the resulting group and
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270 two groups which will be cut.</p>
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272 <p class="whs4"> </p>
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274 <p class="whs4">2. Click the <span style="font-weight: bold;"><B>Ok
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275 </B></span>or <span style="font-weight: bold;"><B> Apply
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276 </B></span>button to confirm creation of the group. </p>
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280 <p> <span style="font-weight: bold;"><B>See
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281 Also</B></span> a sample TUI Script of a <a href="../grouping_elements.htm#bookmark3"> Cut
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282 of two Groups</a> operation. </p>
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