From bcb016c5f87802c0275f8598e81cde41b132dd40 Mon Sep 17 00:00:00 2001
From: maintenance team
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Erase all +
Hide all - allows to hide all objects in the viewer
Mesh + Element Info - provides basic information about the selected element + of the mesh.
Numbering - allows to display the ID numbers of all meshing elements or nodes composing your @@ -145,13 +149,13 @@ if (window.writeIntopicBar)
Clipping - allows to create cross-sections of the selected objects.
Quality Controls - - graphically presents various information about meshes.
Controls - graphically + presents various information about meshes.
Erase - - allows to hide the selected mesh from the viewer.
Hide - + allows to hide the selected mesh from the viewer.
Display Only +
Show Only -allows to display only the selected mesh, hiding all other from the viewer.
Dump view diff --git a/doc/salome/gui/SMESH/extrusion.htm b/doc/salome/gui/SMESH/extrusion.htm index 7b56ecd85..5974a8d2b 100755 --- a/doc/salome/gui/SMESH/extrusion.htm +++ b/doc/salome/gui/SMESH/extrusion.htm @@ -14,9 +14,9 @@ if (navigator.appName !="Netscape") - - - - - - - - -
-In principle, Extrusion along a path - works in the same way as Extrusion, - the main difference is that we define not a vector, but a path of extrusion - which must be a meshed edge. To get an idea of how this algorithm works, - examine several examples, starting from the most simple case of extrusion - along a straight edge. In all examples the same mesh will be extruded - along different paths and with different parameters. This sample 2D mesh - has two quadrangle faces and seven edges. Look at the picture, where white - digits are the node numbers and green are the element numbers:
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Extrusion along - a straight edge (not using base point or angles)
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The left image shows a 1D path mesh, built - on a linear edge, and the initial 2D mesh. The right image shows the result - of extrusion of two edges (#1 and #2) of the initial mesh along the path. - Node #1 of path mesh has been selected as Start - node.
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Extrusion along - a curvilinear edge (with and without angles)
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- The left image shows a 1D path mesh, built on curvilinear edge, and - the initial 2D - mesh. |
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- The central image shows the result of extrusion of one edge (#2) of - the initial mesh along the path. Node - #1 of path mesh has been selected as Start - node. |
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- The same, but using angles {45, 45, 45, 0, -45, -45, -45} |
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Extrusion - along a sub-mesh.
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In this example the path mesh has been built - on a wire (polyline with six edges). The first edge of the wire was used - as Shape (edge), node #1 as Start node. The angles have been defined - as {10, 10, 10}. The middle edge (#4) of the initial mesh has been extruded.
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Extrusion - of 2d elements along a sub-mesh.
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This extrusion bases on the same path mesh - as in the previous example but the third edge of the wire was set as Shape (edge) and node #4 as Start - node. Please note, that the extrusion has been done in direction - from node #4 to node #3, i.e. against the wire direction. In this example - both faces of the initial mesh have been extruded.
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Extrusion of 2d elements - along a closed path.
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- The left image shows a path mesh built on a closed edge (circle). |
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- The central image shows the result of extrusion of both faces of the - initial mesh. Note, that no sewing has been done, so, there are six coincident - nodes and two coincident faces in the resulting mesh. |
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- The same, but using angles {45, -45, 45, -45, 45, -45, 45, -45} |
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- -
To use Extrusion along a path:
- -1. From the Modification - menu choose the Extrusion along - a path item or click button in the toolbar. The - following dialog box will appear:
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2. In the 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, submesh - or group,
define the Path - along which the elements will be extruded,
Path definition consists of several elements -
- -Mesh - - containing a 1D sub-mesh on the edge, - along which proceeds the extrusion.
Shape - (edge) - as the mesh can be complex, - the edge is used to define the sub-mesh for the path.
Start - node - the - first or the last node on the edge. It is used to define the direction - of extrusion.
- -
3. There are two optional parameters, which - can be very useful.
- -If the path of extrusion - is curvilinear, at each iteration the extruded shape is rotated to keep - its initial angularity to the curve. By default, the Base - Point around which the shape is rotated is the mass center of the - shape, however, you can specify any point as the Base - Point and the shape will be rotated with respect to this point.
The shape 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 right, add them to the list of - angles at the left by pressing the button and remove them - from the list by pressing the button.
4. Click the Apply - or OK button. Mesh edges - will be extruded into faces, faces into volumes. The external surface - of the resulting 3d mesh (if faces have been extruded) is covered with - faces, and corners with edges. If the path is closed, the resulting mesh - can contain duplicated nodes and faces, because no sewing is done.
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See - Also a sample TUI Script of an Extrusion - along a Path operation.
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