MESH modules allows you to work with Quadratic + Elements.
+ +Quadratic Edge in not a straight but a broken line and can be defined + by three points: first, middle and last. All more complex Quadratic + Elements differ from ordinary ones in that they consist of Quadratic + Edges.
+ +To + add a quadratic element to your mesh:
+ +1. Select your mesh in the Object Browser + or in the 3D viewer.
+ +2. From the Modification + menu choose the Add item + and select one of the following:
+ +
To create any Quadratic + Element specify the nodes which will form your triangle by selecting + them in the 3D viewer with pressed Shift button. Their numbers will appear + in the dialog box as Corner Nodes + (alternatively you can just input numbers in this field without selection).The + edges formed by the corner nodes will appear in the table. To define the + middle nodes for each edge double-click on the respective field and input + the number of the node. All edges and the object formed by them will be + displayed in the Object browser. When all edges are defined you will be + able to click OK or Apply + button to add the element to the mesh.
+ + 
Reverse + button for Quadratic Edges switches the first and the last nodes. For all other elements it reverses the element. +
+ ++ + + + diff --git a/doc/salome/gui/SMESH/aspect_ratio_3d.htm b/doc/salome/gui/SMESH/aspect_ratio_3d.htm index 20573a1fd..90c6d6c80 100755 --- a/doc/salome/gui/SMESH/aspect_ratio_3d.htm +++ b/doc/salome/gui/SMESH/aspect_ratio_3d.htm @@ -16,21 +16,22 @@ if (navigator.appName !="Netscape")
In this submenu you can choose to display only faces,
+In this submenu you can choose to display only volumes, faces or edges + or combine them.
-
Only Faces Only + Edges
-
only edges,
+ 
-
- -
or both.
-In SMESH you can add to your mesh different elements such as:
+In MESH you can add to your mesh different elements such as:
@@ -101,9 +101,13 @@ else
@@ -123,9 +127,7 @@ else
-
+
@@ -143,7 +145,11 @@ else
+ +
@@ -197,7 +203,8 @@ else
-
-
Area mesh quality
control is based on the algorithm of area calculation of meshing
- elements . It can be applied to meshes consisting of 2D meshing elements
+ elements. It can be applied to meshes consisting of 2D meshing elements
with 3 and 4 nodes (triangles and quadrangles).
@@ -116,7 +116,7 @@ else
See Also - a sample TUI Script of an Area + a sample TUI Script of an Area quality control operation.
diff --git a/doc/salome/gui/SMESH/files/arithmetic_1d.htm b/doc/salome/gui/SMESH/files/arithmetic_1d.htm index ead4f03b7..9aae9c965 100755 --- a/doc/salome/gui/SMESH/files/arithmetic_1d.htm +++ b/doc/salome/gui/SMESH/files/arithmetic_1d.htm @@ -14,28 +14,34 @@ if (navigator.appName !="Netscape")
Arithmetic 1D hypothesis allows to split edges into segments with a length that changes in arithmetic @@ -106,15 +139,15 @@ else
-
-
See Also +
See Also a sample TUI Script of a Defining Arithmetic 1D hypothesis operation.
-Deflection ID hypothesis can be applied for meshing curvilinear edges composing your geometrical object. @@ -128,19 +161,19 @@ else
-
-
See Also +
See Also a sample TUI Script of a Defining Deflection 1D hypothesis operation.
-
Average Length hypothesis can be applied for meshing of edges composing your geometrical object. Definition @@ -151,19 +184,19 @@ else
-
-
See Also +
See Also a sample TUI Script of a Defining Average Length hypothesis operation.
-
Number of segments hypothesis can be applied for meshing of edges composing your geometrical object. @@ -176,53 +209,60 @@ else
-
You can set the type of distribution for this +
You can set the type of distribution for this hypothesis in the Hypothesis Construction dialog bog :
-+
-
Equidistant - Distribution - all segments will have the same length
+Equidistant + Distribution - all segments will have the same length, you define + only the Number of Segments.
-
+ +
-
Scale Distribution - each
+ Scale Distribution - each
next segment differs from the previous according to the formula:
Ai+1 = Ai
- * k, where k is
- Scale Factor
\
\
+
-
Distribution with Table Density - you - input a number of pairs t - F(t) and - the program computes the formula, which will rule the change of length - of segments.
+Distribution with Table Density - you + input a number of pairs t - F(t), + where t ranges from 0 to 1, + and + the module computes the formula, which will rule the change of length + of segments and shows the curve in the plot. You can select the Conversion + mode from Exponent + and Cut negative.
-+
-
+
-
Distribution with Analytic Density - Distribution with Analytic Density - you input the formula, which will rule the - change of length of segments
+ change of length of segments and the module shows the curve in the plot. -
See Also +
See Also a sample TUI Script of a Defining Number of Segments hypothesis operation.
Start and End Length hypothesis allows to divide a geometrical edge into segments so that the first and @@ -233,15 +273,44 @@ else
-
+
-
See Also +
See Also a sample TUI Script of a Defining Start and End Length hypothesis operation.
++ +
This hypothesis is automatically applied when you select Assign + a set of hypotheses option in Create Mesh menu.
+ ++ +
+ +
The dialog box prompts you to define the quality of the future mesh + by only one parameter, which is Fineness, + ranging from 0 (coarse mesh, low number of elements) to 1 (extremely fine + mesh, great number of elements). Compare one and the same object (sphere) + meshed with minimum and maximum value of this parameter.
+ ++ +
+ +
+ +
+
+ -
Max
- Element Area hypothesis is applied for meshing of 2D faces composing
- your geometrical object. Definition of this hypothesis consists of setting
- the maximum area of meshing elements
- (depending on the chosen meshing algorithm it can be triangles
- or quadrangles), which will compose
- the mesh of these 2D faces.
Max Element Area hypothesis + is applied for meshing of 2D faces composing your geometrical object. + Definition of this hypothesis consists of setting the maximum + area of meshing elements (depending on the chosen meshing algorithm + it can be triangles or quadrangles), + which will compose the mesh of these 2D faces.
-
+
-
See Also +
See Also a sample TUI Script of a Maximum Element Area hypothesis operation.
-
+ +
+ +
Length from edges hypothesis + builds 1D mesh segments having a length calculated as an average edge + length for a given wire.
+ ++ +
See Also + a sample TUI Script of a Length + from Edges hypothesis operation.
+ ++ +
This algorithm can be used only together with Quadrangle (Mapping) algorithm. + It allows to build quadrangular meshes even if the number of nodes at + the opposite edges of a meshed face is not equal, otherwise this mesh + will contain some triangular elements.
+ ++ +
In SMESH you can remove nodes and all types of cells of your mesh.
+In MESH you can remove nodes and all types of cells of your mesh.
-
To remove a node:
+ + ++ +
-
1. Select your mesh in the Object Browser +
1. Select your mesh in the Object Browser or in the 3D viewer.
-+
-
2. From the Modification
+ 2. From the Modification
menu choose Remove and
from the associated submenu select the Remove
- nodes, or just click 
icon in the toolbar. The
+ nodes icon in the toolbar. The
following dialog box will appear:
-
+
-
In this dialog box you can specify one or +
In this dialog box you can specify one or several nodes (with pressed Shift button) by choosing them in the 3D viewer.
-+
-
3. Click OK
+ 3. Click OK
or Apply to
confirm deletion of the specified nodes. To remove an element: 1. Select your mesh in the Object Browser
+ 1. Select your mesh in the Object Browser
or in the 3D viewer. 2. From the Modification
+ 2. From the Modification
menu choose Remove and
from the associated submenu select the Remove
- elements, or just click In this dialog box you can specify one or
+ In this dialog box you can specify one or
several elements of your mesh (with pressed Shift button) by choosing
them in the 3D viewer. 3. Click OK
+ 3. Click OK
or Apply to
confirm deletion of the specified elements. In SMESH you can renumber the nodes and elements of your mesh. In MESH you can renumber the nodes and elements of your mesh. To renumber the nodes of your mesh: To renumber the nodes of your mesh: 1. In the Modification
+ 1. In the Modification
menu select Renumbering submenu
and choose the Nodes item or click
- 2. Fill the Mesh
+ 2. Fill the Mesh
field by selecting your mesh in the Object Browser or in the 3D
viewer. 3. Click the Apply
+ 3. Click the Apply
or OK button
to perform the operation. To renumber the elements of your mesh: To renumber the elements of your
+ mesh: 1. In the Modification
+ 1. In the Modification
menu select Renumbering submenu
and choose the Elements item or
- click 2. Fill the Mesh
+ 2. Fill the Mesh
field by selecting your mesh in the Object Browser or in the 3D
viewer. 3. Click the Apply
+ 3. Click the Apply
or OK button
to perform the operation. See
Also a sample TUI Script of a Renumbering
@@ -144,7 +159,7 @@ else
In this picture you see a triangle which coincides with one of the elements
+ of the mesh. After we apply Merge Elements
+ functionality, the triangle will be completely merged with the mesh. See
+ Also a sample TUI Script of a Merge
+ Elements operation. 
Be careful while removing
+Be careful while removing
nodes because if you remove a definite node of your mesh all adjacent
elements will be also deleted.
-
+
-
-
+
-
-
- 
+
+
+
+ icon in the toolbar. The
+ elements icon in the toolbar. The
following dialog box will appear:
-
+
-
-
+
-
-
- 
+
+
+
+ Renumbering nodes and elements
-
button in the toolbar. The following dialog box will
+ button in the toolbar. The following dialog box will
appear: 
button in the toolbar. The following dialog box will
+ click button in the toolbar. The following dialog box will
appear: 
Merging Elements
+
+
This functionality allows to merge coincident elements
+ of a mesh selectable in the dialog box. 
