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100 <h1>Constructing meshes</h1>
102 <p class="whs1">Construction of a mesh consists of:</p>
104 <p class="whs1"> </p>
106 <ul type="disc" class="whs2">
108 <li class=kadov-p><p class="whs1">Selecting a geometrical
109 object for meshing</p></li>
111 <li class=kadov-p><p class="whs1">Applying <a href="about_meshing_algorithms.htm">meshing
112 algorithms</a> and <a href="about_hypotheses.htm">hypotheses</a> which
113 will be used at computation of this mesh.</p></li>
116 <p class="whs1"> </p>
118 <p class=TODO>To construct a mesh:</p>
120 <p class="whs3">1. In the <span style="font-weight: bold;"><B>Mesh
121 </B></span>menu select<span style="font-weight: bold;"><B> Create Mesh </B></span>or
122 click <img src="../image32.gif" width="22px" height="24px" border="0" class="img_whs4"> button in the toolbar. The following dialog box will
125 <p class="whs3"> </p>
127 <p class="whs5"><img src="../pics/createmesh-inv.png" x-maintain-ratio="TRUE" width="370px" height="296px" border="0" class="img_whs6"></p>
129 <p class="whs5"> </p>
131 <p class="whs3">2. For example, you need to mesh a 3d object.
134 <p class="whs3">First, type the name for your mesh in the
135 "Name" box, by default, it is "Mesh_1". Then select
136 the object you wish to mesh in the Object Browser <img src="../image119.gif" width="173px" height="88px" border="0" class="img_whs7">and click
137 the <img src="../image120.gif" width="34px" height="29px" border="0" class="img_whs8"> "Add" button. </p>
139 <p class="whs3">Now you can define 1d Algorithm and 1d Hypotheses,
140 which will be applied to the edges of your object. (Note that any object
141 has edges, even if their existence is not apparent, for example, a sphere
142 has 4 edges). Click the <img src="../image121.gif" width="29px" height="28px" border="0" class="img_whs9"> button to add a hypothesis. Click the <img src="../image122.gif" width="30px" height="29px" border="0" class="img_whs10"> button
143 to define values for the current hypothesis. The use of additional hypotheses
144 is optional (i.e. you may leave "None" in this box). </p>
146 <p class="whs3"> </p>
148 <p class="whs3">Proceed in the same way with 2d and 3d Algorithms
149 and Hypotheses, note that the choice of hypotheses depends on the algorithm.
150 There must be one Algorithm and one or several Hypotheses for each dimension
151 of your object, otherwise you will not get any mesh at all. Of course,
152 if you wish to mesh a face, which is a 2d object, you don't need to define
153 3d Algorithm and Hypotheses. </p>
155 <p class="whs3">In the <span style="font-weight: bold;"><B>Object
156 Browser</B></span> the structure of the new mesh will be displayed as follows:</p>
158 <p class="whs3"><img src="../image88.jpg" width="232px" height="142px" align="right" border="0" class="img_whs11">It contains:</p>
160 <ul type="disc" class="whs2">
162 <li class=kadov-p><p class="whs3">a reference to the
163 geometrical object on the basis of which the mesh has been constructed;</p></li>
165 <li class=kadov-p><p class="whs3"><span style="font-weight: bold;"><B>Applied
166 hypotheses </B></span>folder containing the references to the hypotheses applied
167 to the construction of the mesh;</p></li>
169 <li class=kadov-p><p class="whs3"><span style="font-weight: bold;"><B>Applied
170 algorithms </B></span>folder containing the references to the algorithms applied
171 to the construction of the mesh.</p></li>
174 <p class="whs3"> </p>
176 <p class="whs3">There is an alternative way to create a mesh
177 on an object simply by clicking <span style="font-weight: bold;"><B>Assign
178 a set of hypotheses </B></span>button and selecting between Automatic Tetrahedralization
179 or Hexahedralization. The
180 program will automatically generate a 3D mesh with the most appropriate
181 settings. In the same way you can apply this functionality for meshing
182 2D objects, in which case 3D algorithms are not applied. </p>
184 <p class="whs3"> </p>
186 <p class="whs3">3. Now, when everything is ready, select
187 your mesh in the <span style="font-weight: bold;"><B>Object Browser</B></span>.
189 <span style="font-weight: bold;"><B>Mesh </B></span>menu select<span style="font-weight: bold;"><B>
190 Compute </B></span>or click <img src="../image28.gif" width="25px" height="24px" border="0" class="img_whs12"> button of the toolbar. </p>
192 <p class="whs3"> </p>
194 <p class="whs3">Consider trying a sample script for construction
195 of a mesh from our <a href="../constructing_meshes.htm">TUI Scripts</a>
198 <p class="whs3"> </p>
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