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90 <h1>Uniting a set of triangles</h1>
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92 <p><img src="../i_blue.jpg" x-maintain-ratio="TRUE" width="30px" height="30px" border="0" class="img_whs1"> In contrast to <a href="uniting_two_triangles.htm">the
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93 previous operation</a> this one allows to unite at once many triangles
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94 if they have adjacent edges. </p>
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98 <p class=TODO>To union several triangles:</p>
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100 <p class="whs2"> </p>
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102 <p class="whs2">1. Display a mesh or a submesh in the 3D
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105 <p class="whs2"> </p>
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107 <p class="whs2">2. In the <span style="font-weight: bold;"><B>Modification
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108 </B></span>menu select the <span style="font-weight: bold;"><B>Union of triangles
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109 </B></span>item or click <img src="../image80.gif" width="23px" height="24px" border="0" class="img_whs3"> button in the toolbar. The following
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110 dialog box will appear:</p>
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114 <p class="whs2"><img src="../image81.gif" width="295px" height="362px" border="0" class="img_whs4"></p>
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118 <ul type="disc" class="whs5">
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120 <li class=kadov-p><p class="whs6"><span
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121 style="font-weight: bold;"><B>The main list </B></span>shall contain the triangles
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122 which will be united. You can click on an triangle in the 3D viewer and
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123 it will be highlighted. After that click the <span style="font-weight: bold;"><B>Add
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124 </B></span>button and the ID of this triangle will be added to the list. To
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125 remove a selected element or elements from the list click the <span style="font-weight: bold;"><B>Remove
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126 </B></span>button. The <span style="font-weight: bold;"><B>Sort </B></span>button
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127 allows to sort the list of IDs. The <span style="font-weight: bold;"><B>Set
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128 filter </B></span>button allows to apply a definite filter to selection of
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129 triangles.</p></li>
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131 <li class=kadov-p><p class="whs6"><span
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132 style="font-weight: bold;"><B>Apply to all </B></span><span>radio button allows
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133 to modify the orientation of all triangles of the currently displayed
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134 mesh or submesh.</span></p></li>
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136 <li class=kadov-p><p class="whs6"><span
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137 style="font-weight: bold;"><B>Select from </B></span>set of fields allows to
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138 choose a submesh or an existing group whose triangle elements will be
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139 automatically added to the list.</p></li>
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142 <p class="whs2"> </p>
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144 <p class="whs2">3. Click the <span style="font-weight: bold;"><B>Apply
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145 </B></span>or <span style="font-weight: bold;"><B>OK </B></span>button to confirm
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148 <p class="whs7"> </p>
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150 <p class="whs7"><img src="../i_blue.jpg" x-maintain-ratio="TRUE" width="30px" height="30px" border="0" class="img_whs1"> If some selected triangle
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151 elements have no adjacent edges with one of the others, the operation
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152 on these elements shall take no effect.</p>
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154 <p class="whs2"> </p>
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