Extrusion is a type of surface meshing by generation from discretized
+ lines. It is used to build mesh elements of plus one dimension than the
+ swept ones. Each swept 1D element produces one or more quadrangles (or
+ triangles if one node of a rotated element lays on the revolution axis).
+
+
+
+
To use extrusion:
+
+
+
+
1. From the Modification
+ menu choose the Extrusion item
+ or click button in the toolbar. The following dialog box
+ shall appear:
+
+
+
+
+
+
+
+
2. In this dialog box you should select
+
+
+
+
the type of elements
+ which will be extruded (1D or 2D),
+
+
specify the IDs of
+ the elements which will be extruded by selecting them in the 3D viewer
+ or select the whole mesh or submesh,
+
+
specify the vector
+ along which the elements will be extruded,
In SMESH you can add to your mesh different elements such as:
+
+
+
+
+
+
Nodes
+
+
Edges
+
+
Triangles
+
+
Quadrangles
+
+
Tetrahedrons
+
+
Hexahedrons
+
+
+
+
+
To add a node or an 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,
+ the following associated submenu will appear:
+
+
+
+
+
+
+
+
+
+
From this submenu select the type of element
+ which you would like to add to your mesh. The corresponding dialog box
+ shall appear.
+
+
Adding nodes
+
+
+
+
+
+
In this dialog box set coordinates for your
+ node in the Coordinates set of
+ fields and click the Apply or
+ OK button. Your node will be created:
+
+
+
+
+
+
+
+
Adding edges
+
+
+
+
+
+
+
+
In this dialog box specify the nodes which
+ will form your edge by selecting them in the 3D viewer with pressed Shift
+ button and click the Apply or
+ OK button. Your edge will be created:
+
+
+
+
+
+
+
+
Adding triangles
+
+
+
+
+
+
+
+
In this dialog box specify the nodes which
+ will form your triangle by selecting them in the 3D viewer with pressed
+ Shift button and click the Apply or
+ OK button. Your triangle will
+ be created:
+
+
+
+
+
+
+
+
Adding quadrangles
+
+
+
+
In this dialog box specify the nodes which
+ will form your quadrangle by selecting them in the 3D viewer with pressed
+ Shift button and click the Apply or
+ OK button. Your quadrangle will
+ be created:
+
+
+
+
+
+
+
+
Adding tetrahedrons
+
+
+
+
+
+
In this dialog box specify the nodes which
+ will form your tetrahedron by selecting them in the 3D viewer with pressed
+ Shift button and click the Apply or
+ OK button. Your tetrahedron will
+ be created:
+
+
+
+
+
+
Adding hexahedrons
+
+
+
+
+
+
In this dialog box specify the nodes which
+ will form your hexahedron by selecting them in the 3D viewer with pressed
+ Shift button and click the Apply or
+ OK button. Your hexahedron will
+ be created:
+
+
+
+
+
+
+
Changing orientation of elements
-
Type topic text here.
+
Orientation of an element is changed by reverting the order of nodes
+ of the selected elements.
+
+
+
+
To change orientation of elements:
+
+
+
+
1. Display a mesh or a submesh in the 3D
+ viewer.
+
+
+
+
2. In the Modification
+ menu select the Orientation item
+ or click button in the toolbar. The following dialog box
+ will appear:
+
+
+
+
+
+
+
+
+
+
The main list shall contain the
+ elements which will be reoriented. You can click on an element
+ in the 3D viewer and it will be highlighted. After that click the Add button and the ID of this element
+ will be added to the list. To remove a selected element or elements from
+ the list click the Remove button.
+ The Sort button allows to sort
+ the list of elements IDs. The Set filter
+ button allows to apply a definite filter to selection of elements
+ of your group.
+
+
Apply to all radio button allows
+ to modify the orientation of all elements of the currently displayed mesh
+ or submesh.
+
+
Select from set of fields allows to
+ choose a submesh or an existing group whose elements will be automatically
+ added to the list.
+
+
+
+
+
3. Click the Apply
+ or OK button to confirm
+ the operation.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
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Constructing groups of specific elements
+
+
In SMESH you can easily construct groups of specific elements (nodes,
+ edges or faces) which will be taken from a definite submesh.
+
+
+
+
To construct a group of specific elements:
+
+
+
+
Right-click on a submesh in the Object Browser
+ and choose the Construct Group item
+ or select your submesh in the Object Browser and in the Mesh
+ menu chose the Construct Group
+ item. SMESH will construct several groups consisting of elements
+ of the definite type: nodes, edges or faces
button in the toolbar. The following dialog box
+ shall appear:
button in the toolbar. The following dialog box
+ will appear:
