mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
synced 2024-12-27 18:00:34 +05:00
205 lines
7.8 KiB
HTML
Executable File
205 lines
7.8 KiB
HTML
Executable File
<!doctype HTML public "-//W3C//DTD HTML 4.0 Frameset//EN">
|
|
|
|
<html>
|
|
|
|
<head>
|
|
<title>Constructing meshes</title>
|
|
<meta http-equiv="content-type" content="text/html; charset=windows-1252">
|
|
<meta name="generator" content="RoboHelp by eHelp Corporation www.ehelp.com">
|
|
<link rel="stylesheet" href="../default_ns.css"><script type="text/javascript" language="JavaScript" title="WebHelpSplitCss">
|
|
<!--
|
|
if (navigator.appName !="Netscape")
|
|
{ document.write("<link rel='stylesheet' href='../default.css'>");}
|
|
//-->
|
|
</script>
|
|
<style type="text/css">
|
|
<!--
|
|
p.whs1 { margin-left:0px; }
|
|
ul.whs2 { list-style:disc; }
|
|
p.whs3 { margin-left:40px; }
|
|
img_whs4 { border:none; width:22px; height:24px; border-style:none; }
|
|
p.whs5 { margin-left:80px; }
|
|
img_whs6 { border:none; border-style:none; width:355px; height:296px; float:none; }
|
|
img_whs7 { border:none; width:173px; height:88px; border-style:none; }
|
|
img_whs8 { border:none; width:34px; height:29px; border-style:none; }
|
|
img_whs9 { border:none; width:29px; height:28px; border-style:none; }
|
|
img_whs10 { border:none; width:30px; height:29px; border-style:none; }
|
|
img_whs11 { border:none; width:232px; height:142px; border-style:none; float:right; }
|
|
img_whs12 { border:none; width:25px; height:24px; border-style:none; }
|
|
-->
|
|
</style><script type="text/javascript" language="JavaScript">
|
|
<!--
|
|
if ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) == 4))
|
|
{
|
|
var strNSS = "<style type='text/css'>";
|
|
strNSS += "p.whs1 {margin-left:1pt; }";
|
|
strNSS +="</style>";
|
|
document.write(strNSS);
|
|
}
|
|
//-->
|
|
</script>
|
|
<script type="text/javascript" language="JavaScript" title="WebHelpInlineScript">
|
|
<!--
|
|
function reDo() {
|
|
if (innerWidth != origWidth || innerHeight != origHeight)
|
|
location.reload();
|
|
}
|
|
if ((parseInt(navigator.appVersion) == 4) && (navigator.appName == "Netscape")) {
|
|
origWidth = innerWidth;
|
|
origHeight = innerHeight;
|
|
onresize = reDo;
|
|
}
|
|
onerror = null;
|
|
//-->
|
|
</script>
|
|
<style type="text/css">
|
|
<!--
|
|
div.WebHelpPopupMenu { position:absolute; left:0px; top:0px; z-index:4; visibility:hidden; }
|
|
-->
|
|
</style><script type="text/javascript" language="javascript1.2" src="../whmsg.js"></script>
|
|
<script type="text/javascript" language="javascript" src="../whver.js"></script>
|
|
<script type="text/javascript" language="javascript1.2" src="../whproxy.js"></script>
|
|
<script type="text/javascript" language="javascript1.2" src="../whutils.js"></script>
|
|
<script type="text/javascript" language="javascript1.2" src="../whtopic.js"></script>
|
|
</head>
|
|
<body><script type="text/javascript" language="javascript1.2">
|
|
<!--
|
|
if (window.gbWhTopic)
|
|
{
|
|
if (window.addTocInfo)
|
|
{
|
|
addTocInfo("MESH module\nCreating meshes\nConstructing meshes");
|
|
addButton("show",BTN_TEXT,"Show","","","","",0,0,"","","");
|
|
|
|
}
|
|
if (window.writeBtnStyle)
|
|
writeBtnStyle();
|
|
|
|
if (window.writeIntopicBar)
|
|
writeIntopicBar(1);
|
|
|
|
if (window.setRelStartPage)
|
|
{
|
|
setRelStartPage("../smesh.htm");
|
|
|
|
autoSync(1);
|
|
sendSyncInfo();
|
|
sendAveInfoOut();
|
|
}
|
|
}
|
|
else
|
|
if (window.gbIE4)
|
|
document.location.reload();
|
|
//-->
|
|
</script>
|
|
<h1>Constructing meshes</h1>
|
|
|
|
<p class="whs1">Construction of a mesh consists of:</p>
|
|
|
|
<p class="whs1"> </p>
|
|
|
|
<ul type="disc" class="whs2">
|
|
|
|
<li class=kadov-p><p class="whs1">Selecting a geometrical
|
|
object for meshing</p></li>
|
|
|
|
<li class=kadov-p><p class="whs1">Applying <a href="about_meshing_algorithms.htm">meshing
|
|
algorithms</a> and <a href="about_hypotheses.htm">hypotheses</a> which
|
|
will be used at computation of this mesh.</p></li>
|
|
</ul>
|
|
|
|
<p class="whs1"> </p>
|
|
|
|
<p class=TODO>To construct a mesh:</p>
|
|
|
|
<p class="whs3">1. In the <span style="font-weight: bold;"><B>Mesh
|
|
</B></span>menu select<span style="font-weight: bold;"><B> Create Mesh </B></span>or
|
|
click <img src="../image32.gif" width="22px" height="24px" border="0" class="img_whs4"> button in the toolbar. The following dialog box will
|
|
appear:</p>
|
|
|
|
<p class="whs3"> </p>
|
|
|
|
<p class="whs5"><img src="../pics/createmesh-inv.png" x-maintain-ratio="TRUE" width="355px" height="296px" border="0" class="img_whs6"></p>
|
|
|
|
<p class="whs5"> </p>
|
|
|
|
<p class="whs3">2. For example, you need to mesh a 3d object.
|
|
</p>
|
|
|
|
<p class="whs3">First, type the name for your mesh in the
|
|
"Name" box, by default, it is "Mesh_1". Then select
|
|
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
|
|
the <img src="../image120.gif" width="34px" height="29px" border="0" class="img_whs8"> "Add" button. </p>
|
|
|
|
<p class="whs3">Now you can define 1d Algorithm and 1d Hypotheses,
|
|
which will be applied to the edges of your object. (Note that any object
|
|
has edges, even if their existence is not apparent, for example, a sphere
|
|
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
|
|
to define values for the current hypothesis. The use of additional hypotheses
|
|
is optional (i.e. you may leave "None" in this box). </p>
|
|
|
|
<p class="whs3"> </p>
|
|
|
|
<p class="whs3">Proceed in the same way with 2d and 3d Algorithms
|
|
and Hypotheses, note that the choice of hypotheses depends on the algorithm.
|
|
There must be one Algorithm and one or several Hypotheses for each dimension
|
|
of your object, otherwise you will not get any mesh at all. Of course,
|
|
if you wish to mesh a face, which is a 2d object, you don't need to define
|
|
3d Algorithm and Hypotheses. </p>
|
|
|
|
<p class="whs3">In the <span style="font-weight: bold;"><B>Object
|
|
Browser</B></span> the structure of the new mesh will be displayed as follows:</p>
|
|
|
|
<p class="whs3"><img src="../image88.jpg" width="232px" height="142px" align="right" border="0" class="img_whs11">It contains:</p>
|
|
|
|
<ul type="disc" class="whs2">
|
|
|
|
<li class=kadov-p><p class="whs3">a reference to the
|
|
geometrical object on the basis of which the mesh has been constructed;</p></li>
|
|
|
|
<li class=kadov-p><p class="whs3"><span style="font-weight: bold;"><B>Applied
|
|
hypotheses </B></span>folder containing the references to the hypotheses applied
|
|
to the construction of the mesh;</p></li>
|
|
|
|
<li class=kadov-p><p class="whs3"><span style="font-weight: bold;"><B>Applied
|
|
algorithms </B></span>folder containing the references to the algorithms applied
|
|
to the construction of the mesh.</p></li>
|
|
</ul>
|
|
|
|
<p class="whs3"> </p>
|
|
|
|
<p class="whs3">There is an alternative way to create a mesh
|
|
on an object simply by clicking <span style="font-weight: bold;"><B>Assign
|
|
a set of hypotheses </B></span>button and selecting between Automatic Tetrahedralization
|
|
or Hexahedralization. The
|
|
program will automatically generate a 3D mesh with the most appropriate
|
|
settings. In the same way you can apply this functionality for meshing
|
|
2D objects, in which case 3D algorithms are not applied. </p>
|
|
|
|
<p class="whs3"> </p>
|
|
|
|
<p class="whs3">3. Now, when everything is ready, select
|
|
your mesh in the <span style="font-weight: bold;"><B>Object Browser</B></span>.
|
|
From the
|
|
<span style="font-weight: bold;"><B>Mesh </B></span>menu select<span style="font-weight: bold;"><B>
|
|
Compute </B></span>or click <img src="../image28.gif" width="25px" height="24px" border="0" class="img_whs12"> button of the toolbar. </p>
|
|
|
|
<p class="whs3"> </p>
|
|
|
|
<p class="whs3">Consider trying a sample script for construction
|
|
of a mesh from our <a href="../constructing_meshes.htm">TUI Scripts</a>
|
|
section.</p>
|
|
|
|
<p class="whs3"> </p>
|
|
|
|
<p> </p>
|
|
|
|
<script type="text/javascript" language="javascript1.2">
|
|
<!--
|
|
if (window.writeIntopicBar)
|
|
writeIntopicBar(0);
|
|
//-->
|
|
</script>
|
|
</body>
|
|
</html>
|