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119 <h1>Aspect Ratio</h1>
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121 <p><img src="../i_blue.jpg" x-maintain-ratio="TRUE" width="30px" height="30px" border="0" class="img_whs1"> The <span style="font-weight: bold;"><B>Aspect Ratio</B></span>
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122 quality criterion for mesh elements is defined as follows:</p>
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126 <ul type="disc" class="whs2">
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128 <li class=kadov-p><p>For a <span style="font-weight: bold;"><B>triangle</B></span>
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129 2D element consisting of 3 nodes a the <span style="font-weight: bold;"><B>Aspect
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130 Ratio</B></span> is calculated as the ratio of the length, h2, of the edge
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131 of this triangle, to the height, h1. The ratio of h2 to h1 is then multiplied
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133 style="vertical-align: Super; font-size: 10pt;"><font size=2 style="font-size:10pt;">(1/2)</font></span> /2, so that
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134 a
\93perfect
\94 element in the shape of an equilateral triangle will be equal
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135 to 1. This procedure is repeated for the remaining two edges of the triangle,
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136 and the largest value is retained as the <span style="font-weight: bold;"><B>Aspect
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137 Ratio</B></span> for the element.</p></li>
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142 <p class="whs3"><img src="../image26.jpg" width="238px" height="205px" border="0" class="img_whs4"></p>
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146 <p class="whs5"> </p>
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148 <ul type="disc" class="whs2">
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150 <li class=kadov-p><p class="whs5">For a <span style="font-weight: bold;"><B>quadrangle</B></span>
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151 2D element consisting of 4 nodes the
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152 <span style="font-weight: bold;"><B>Aspect Ratio </B></span>is the ratio of the
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153 element's longest side to its shortest side.</p></li>
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156 <p class="whs3"><img src="../image22.gif" width="226px" height="70px" border="0" class="img_whs6"></p>
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158 <p class="whs3"> </p>
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160 <p class=TODO>To apply the Aspect Ratio quality criterion to your mesh:</p>
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162 <p class=TODO> </p>
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164 <p class="whs7">1. Display your mesh in the viewer.</p>
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166 <p class="whs7"> </p>
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168 <p class="whs7">2. Choose <span style="font-weight: bold;"><B>Quality
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169 Controls > Aspect Ratio </B></span>or click <img src="../image37.gif" width="25px" height="24px" border="0" class="img_whs8"> button in the
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170 toolbar. Your mesh will be displayed in the viewer with its elements colored
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171 according to the applied mesh quality control criterion:</p>
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173 <p class="whs7"> </p>
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