\ref tui_deflection_1d "Defining Number of Segments" hypothesis
operation.
-\note The plot functionality is available only if GUI module is builded with Plot 2D Viewer (set option SALOME_USE_PLOT2DVIEWER to ON when building GUI module).
+\note The plot functionality is available only if GUI module is built with Plot 2D Viewer (option SALOME_USE_PLOT2DVIEWER is ON when building GUI module).
<br>
\anchor start_and_end_length_anchor
associated geometrical entity.
Mesh entities are identified by integer IDs starting from 1.
-Nodes and elements are countered separately, i.e. there can be a node
+Nodes and elements are counted separately, i.e. there can be a node
and element with the same ID.
SALOME supports elements of second order, without a central node
</table>
When 2D elements are extruded, in addition to 3D elements segments are
-created on ribs of the result 3D mesh. Free edges of input 2D elements
+created on the ribs of the resulting 3D mesh. Free edges of input 2D elements
generate logically horizontal rib segments. Logically vertical rib
-segments are generated from nodes belonging to a sole input 2D element
-(a figure below illustrates this rule).
+segments are generated from the nodes belonging to a sole input 2D element
+(the figure below illustrates this rule).
\image html extru_rib_segs.png "Two triangles extruded: no vertical rib segments generated from nodes #2 and #3 as they are shared by both triangles"
- Node ID;
- Coordinates (X, Y, Z);
- Connectivity information (connected elements); double click in
- this line makes the dialog show information of these elements;
+ this line reveals information about these elements;
- Position on a shape (for meshes built on a geometry);
- Groups information (names of groups the node belongs to).
- Type (triangle, quadrangle, etc.);
- Gravity center (X, Y, Z coordinates);
- Connectivity information (connected nodes); double click in
- a line of a node makes the dialog show information of this node;
+ a line of a node reveals the information about this node;
- Quality controls (area, aspect ration, volume, etc.);
- Position on a shape (for meshes built on a geometry);
- Groups information (names of groups the element belongs to).
nodes / elements does not exceed the "Automatic controls compute limit" set
via the "Mesh information" preferences (zero value means that there is no limit).
-\note The plot functionality is available only if GUI module is builded with Plot 2D Viewer (set option SALOME_USE_PLOT2DVIEWER to ON when building GUI module).
+\note The plot functionality is available only if the GUI module is built with Plot 2D Viewer (option SALOME_USE_PLOT2DVIEWER is ON when building GUI module).
The button \b "Dump" allows printing the information displayed in the
dialog box to a .txt file.
\page quad_from_ma_algo_page Medial Axis Projection Quadrangle meshing algorithm
Medial Axis Projection algorithm can be used for meshing faces with
-sinuous borders and having channel-like shape, for which is it
-difficult to define 1D hypotheses so that generated quadrangles to be
-of good shape. The algorithm can be also applied to faces with ring
+sinuous borders and a channel-like shape, for which it can be
+difficult to define 1D hypotheses such that to obtain a good shape of
+resulting quadrangles. The algorithm can be also applied to faces with ring
topology, which can be viewed as a closed 'channel'. In the latter
case radial discretization of a ring can be specified by
using <em>Number of Layers</em> or <em>Distribution of Layers</em>
\image html quad_from_ma_mesh.png "A mesh of a river model to the left and of a ring-face to the right"
-The algorithm assures good shape of quadrangles by constructing Medial
+The algorithm provides proper shape of quadrangles by constructing Medial
Axis between sinuous borders of the face and using it to
discretize the borders. (Shape of quadrangles can be not perfect at
locations where opposite sides of a 'channel' are far from being parallel.)
The Medial Axis is used in two ways:
<ol>
-<li>If there is a sub-mesh on either sinuous border, then the nodes of
+<li>If there is a sub-mesh on a sinuous border, then the nodes of
this border are mapped to the opposite border via the Medial
Axis.</li>
-<li> If there is no sub-meshes on the sinuous borders, then a part of
+<li> If there are no sub-meshes on sinuous borders, then the part of
the Medial Axis that can be mapped to both borders is discretized
using a 1D hypothesis assigned to the face or its ancestor shapes,
- and the division points are mapped from the Medial Axis to the both
+ and the division points are mapped from the Medial Axis to both
borders to find positions of nodes.</li>
</ol>
mesh of plus one dimension are additionally created. All created
elements can be automatically grouped. Revolution can be used to create
a \ref extrusion_struct "structured mesh from scratch".
-See \ref extrusion_page page for general information on Revolution
+See \ref extrusion_page page for general information on Revolution,
which can be viewed as extrusion along a circular path.
<em>To apply revolution:</em>
\page selection_filter_library_page Selection filter library
\n Selection filter library allows creating and storing in files
-filters that can be later loaded and used for operations on meshes. You can
-access to it from the Main Menu via <b>Tools / Selection filter library</b>.
+the filters that can be later reused for operations on meshes. You can
+access it from the Main Menu via <b>Tools / Selection filter library</b>.
It is also possible to save any filter by invoking the filter library
from \a Filter dialog launched from any mesh operation.
\ref area_page "Area quality control"), which is more, less or equal (within a given
<b>Tolerance</b>) to the predefined <b>Threshold Value</b>.
</li><li>
-<b>Free edges</b> selects 2D mesh elements having at least one of its
-edges not shared with other faces. See also a
+<b>Free edges</b> selects 2D mesh elements having at least one
+edge, which is not shared with other faces. See also a
\ref free_edges_page "Free Edges quality control".
</li><li>
<b>Free faces</b> selects 2D mesh elements, which belong to less than two volumes.
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"
