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22252: EDF 2684 SMESH: Extrusion along a path with a curvilinear edge

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eap 2013-07-16 13:44:28 +00:00
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doc/salome/gui/SMESH/input/extrusion_along_path.doc
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@ -79,7 +79,7 @@ path</b> item or click <em>"Extrusion along a path"</em> button in the toolbar.
The following dialog common for line and planar elements will appear: The following dialog common for line and planar elements will appear:
\image html extrusion1.png \image html extrusion_along_path_dlg.png
</li> </li>
<li>In this dialog: <li>In this dialog:
@ -99,28 +99,31 @@ about filters in the \ref selection_filter_library_page "Selection filter librar
</ul> </ul>
</li> </li>
<li>define the Path along which the elements will be extruded, <li>define the \b Path along which the elements will be extruded.<br>
\n Path definition consists of several elements: Path definition consists of several elements:
<ul> <ul>
<li><b>Mesh or submesh</b> - 1D mesh or sub-mesh, along which proceeds the extrusion</li> <li><b>Mesh or submesh</b> - 1D mesh or sub-mesh, along which proceeds the extrusion</li>
<li><b>Start node</b> - the start node. It is used to define the direction of extrusion </li> <li><b>Start node</b> - the start node. It is used to define the direction of extrusion </li>
</ul> </ul>
</li> </li>
<li>activate <b>Generate Groups</b> checkbox if it is necessary to copy the groups of <li>activate <b>Generate Groups</b> checkbox if it is necessary to copy the groups of
elements of the source mesh to the newly created one. </li> elements of the source mesh to the newly created one. </li>
</ul> </ul>
</li> </li>
<li>There are two optional parameters, which can be very useful: <li>There are two optional parameters, which can be very useful:
<ul> <ul>
<li>If the path of extrusion is curvilinear, at each iteration the <li>If the path of extrusion is curvilinear, at each iteration the
extruded shape is rotated to keep its initial angularity to the extruded elements are rotated to keep its initial angularity to the
curve. By default, the <b>Base Point</b> around which the shape is rotated is curve. By default, the <b>Base Point</b> around which the elements are rotated is
the mass center of the shape, however, you can specify any point as the mass center of the elements, however, you can specify any point as
the <b>Base Point</b> and the shape will be rotated with respect to this the <b>Base Point</b> and the elements will be rotated with respect to this
point. point.<br>
Note that it is the <b>Base Point</b> who goes exactly along the
path, and all the elements being extruded just keep their relative
position around the <b>Base Point</b> at each iteration.
</li> </li>
<li>The shape can also be rotated around the path to get the resulting <li>The elements can also be rotated around the path to get the resulting
mesh in a helical fashion. You can set the values of angles at the mesh in a helical fashion. You can set the values of angles at the
right, add them to the list of angles at the left by pressing the <em>"Add"</em> right, add them to the list of angles at the left by pressing the <em>"Add"</em>
button and remove them from the list by pressing the <em>"Remove"</em> button. button and remove them from the list by pressing the <em>"Remove"</em> button.
@ -132,7 +135,7 @@ button and remove them from the list by pressing the <em>"Remove"</em> button.
<center><em>"Remove" button</em></center> <center><em>"Remove" button</em></center>
<b>Linear variation of the angles</b> option allows defining the angle of gradual rotation for the whole path. <b>Linear variation of the angles</b> option allows defining the angle of gradual rotation for the whole path.
At each step the shape will be rotated by angle/nb. of steps. At each step the elements will be rotated by <code>angle / nb. of steps</code>.
</li> </li>
</ul> </ul>