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6 <title>Adding Quadratic Nodes and Elements</title>
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73 <h1>Adding Quadratic Elements</h1>
75 <p>MESH modules allows you to work with <span style="font-weight: bold;"><B>Quadratic
76 Elements</B></span>.</p>
78 <p>Quadratic Edge in not a straight but a broken line and can be defined
79 by three points: first, middle and last. All more complex <span style="font-weight: bold;"><B>Quadratic
80 Elements</B></span> differ from ordinary ones in that they consist of Quadratic
84 style="font-family: 'Arial Black', sans-serif; font-style: italic;">To
85 add a quadratic element to your mesh:</p>
87 <p class="whs1">1. Select your mesh in the Object Browser
88 or in the 3D viewer.</p>
90 <p class="whs1">2. From the <span style="font-weight: bold;"><B>Modification
91 </B></span>menu choose the <span style="font-weight: bold;"><B>Add </B></span>item
92 and select one of the following: </p>
94 <p class="whs1"><img src="image152.gif" width="148px" height="168px" border="0" class="img_whs2"></p>
96 <p class="whs1">To create any <span style="font-weight: bold;"><B>Quadratic
97 Element </B></span>specify the nodes which will form your triangle by selecting
98 them in the 3D viewer with pressed Shift button. Their numbers will appear
99 in the dialog box as <span style="font-weight: bold;"><B>Corner Nodes</B></span>
100 (alternatively you can just input numbers in this field without selection).The
101 edges formed by the corner nodes will appear in the table. To define the
102 middle nodes for each edge double-click on the respective field and input
103 the number of the node. All edges and the object formed by them will be
104 displayed in the Object browser. When all edges are defined you will be
105 able to click <span style="font-weight: bold;"><B>OK</B></span> or <span style="font-weight: bold;"><B>Apply</B></span>
106 button to add the element to the mesh. </p>
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110 <p class="whs1"><span style="font-weight: bold;"><B>Reverse</B></span>
111 button for Quadratic Edges switches the first and the last nodes. <span
112 style="margin-left: 40px;">For all other elements it reverses the element.
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