This functionality allows you to unite free borders of a 2D mesh.
There are two working modes: \a Automatic and \a Manual. In the \b
-Automatic mode, the program finds free borders coincident within a
+Automatic mode, the program finds free borders coincident within the
specified tolerance and sews them. Optionally it is possible to
-visually check and correct is necessary the found free borders before
+visually check and correct if necessary the found free borders before
sewing. <br>
In the \b Manual mode you are to define borders to sew by picking
three nodes of each of two borders.
To use \b Automatic sewing:
<ul>
-<li>Specify a mesh you want to sew by selecting it or any its part
+<li>Specify the mesh you want to sew by selecting it or any its part
(group or sub-mesh) in the Object Browser or in the VTK Viewer.</li>
-<li>Specify the \b Tolerance within which free borders are considered
+<li>Specify the \b Tolerance, within which free borders are considered
coincident. At the default zero \b Tolerance, the tolerance used by
the search algorithm is defined as one tenth of an average size of
- elements adjacent to free borders being compared.</li>
+ elements adjacent to compared free borders.</li>
<li>To visually check the coincident free borders found by the
- algorithm, switch off <b>Auto Sewing</b> check-box. Then controls
+ algorithm, switch off <b>Auto Sewing</b> check-box. The controls
to adjust groups of coincident free borders will become available in
the dialog.</li>
<li>\b Detect button launches the algorithm of search of coincident
free borders.</li>
-<li>The found groups of <b>Coincident Free Borders</b> are shown in a
- list, a group per a line. Each group has its own color which is used
- to display the borders of the group in the VTK Viewer. A free border
- within a group is designated by IDs of its first, second and last
- nodes within parenthesis. All borders present in the list will be
- sewn upon \b Apply.</li>
-<li>\b Remove button removes selected groups from the list.</li>
+<li>The found groups of <b>Coincident Free Borders</b> are shown in the
+ list, one group per line. Each group has its own color, which is used
+ to display the group borders in the VTK Viewer. A free border
+ within a group is designated by the IDs of its first, second and
+ last nodes within parenthesis. All borders present in the list will
+ be sewn upon \b Apply. </li>
+<li>\b Remove button removes the selected groups from the list.</li>
<li><b>Select All</b> check-box selects all groups in the list.</li>
<li>When a group is selected, its borders appear in <b>Edit Selected
Group</b> list that allows you to change this group.</li>
to this border during sewing.
</li><li>
\image html remove.png
-<em>Remove Border</em> button removes selected borders from the
+<em>Remove Border</em> button removes the selected borders from the
group. It is active if there are more than two borders in the group.
</li>
-<li>Selection of a border in the list allows to change its first and
+<li>Selection of a border in the list allows changing its first and
last nodes whose IDs appear in two fields below the list. \a Arrow
- buttons near each field move the corresponding end node by
+ buttons near each field move the corresponding end node by the
number of nodes defined by \b Step field.</li>
<li>
\image html swap.png
</ul>
For sewing free borders manually you should switch the \b Mode to \b
-Manual and define three points on each border: first, second and the
+Manual and define three points on each border: the first, the second and the
last node:
\image html sewing_manual.png
border. To cope with this,
\ref merging_nodes_page "merge" coincident nodes into one
beforehand. Two figures below illustrate this approach.
-\image html sew_using_merge.png "Merge coincident nodes which are difficult to distinguish"
+\image html sew_using_merge.png "Merge coincident nodes, which are difficult to distinguish"
<br>
\image html sew_after_merge.png "After merging nodes it is easy to specify border nodes"
