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@ -337,7 +337,8 @@ parameter of the hypotheses depending on edge direction.
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geometrical model in the 3D Viewer, which can help to understand the
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location of a set of edges within the model.
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<b>Propagation chains</b> group allows splitting opposite edges of quadrilateral faces
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<b>Propagation chains</b> group allows defining <b>Reversed Edges</b>
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for splitting opposite edges of quadrilateral faces
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in a logically uniform direction. When this group is
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activated, the list is filled with propagation chains found within the
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model. When a chain is selected in the list its edges are
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@ -15,15 +15,15 @@ The choice of a hypothesis depends on the selected algorithm.
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Hypotheses are created during creation and edition of
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\ref constructing_meshes_page "meshes" and
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\ref constructing_submeshes_page "sub-meshes".
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Once created a hypotheses can be reused during creation and
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edition of other meshes and sub-meshes. All created hypotheses and
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algorithms are present in the Object Browser in \a Hypotheses and
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\a Algorithms folders correspondingly. It is possible to open a dialog
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to modify the parameters of a hypothesis from its context menu.
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This menu also provides \b Unassign command that will unassign the hypothesis from all
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meshes and sub-meshes using it.
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Modification of any parameter of a hypothesis and its unassignment lead
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to automatic removal of elements generated using it.
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Once created a hypotheses can be reused during creation and edition of
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other meshes and sub-meshes. All created hypotheses and algorithms are
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present in the Object Browser in \a Hypotheses and \a Algorithms
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folders correspondingly. It is possible to open a dialog to modify the
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parameters of a hypothesis from its context menu. This menu also
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provides \b Unassign command that will unassign the hypothesis from
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all meshes and sub-meshes using it. Modification of any parameter of a
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hypothesis and its unassignment leads to automatic removal of elements
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generated using it.
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In \b MESH there are the following Basic Hypotheses:
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<ul>
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@ -36,7 +36,8 @@ using the same hypothesis assigned to only one edge.<br>
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Thus you define a sub-mesh on the edge where you define 1D meshing
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parameters and the \b Propagation hypothesis. These local meshing
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parameters will be propagated via opposite sides of quadrangles to the
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whole geometry, or to an edge with other local meshing parameters.
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whole geometry, and this propagation stops at an edge with other local
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meshing parameters.
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This hypothesis can be taken into account by
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\ref a1d_algos_anchor "Wire Discretization" and
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@ -168,8 +169,13 @@ for more information about quadratic meshes.
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This additional hypothesis can be used together with 2D triangulation algorithms.
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It allows 2D triangulation algorithms to build quadrangular meshes.
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This hypothesis cannot be used with "Quadrangle (Mapping)" meshing algorithm,
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since \ref hypo_quad_params_anchor "Quadrangle parameters"
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hypothesis has a restriction: the total quantity of
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segments on all four sides of the face must be even (divisible by 2).
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Usage of this hypothesis with "Quadrangle (Mapping)" meshing algorithm
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is obsolete since introducing
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\ref hypo_quad_params_anchor "Quadrangle parameters" hypothesis.
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Usage of this hypothesis with "Quadrangle (Mapping)" meshing algorithm
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corresponds to specifying "Quadrangle Preference" transition type of
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\ref hypo_quad_params_anchor "Quadrangle parameters" hypothesis.
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\note "Quadrangle Preference" transition type can be used only if the
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total quantity of segments on all sides of the face is even (divisible
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by 2), else "Standard" transition type is used.
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*/
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@ -19,7 +19,8 @@ number of mesh segments following an 1D hypothesis.
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</li>
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<li><em>Composite Side Discretization</em> algorithm - allows to apply a 1D
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hypothesis to a whole side of a geometrical face even if it is
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composed of several edges provided that they form C1 curve in all faces of the main shape.</li>
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composed of several edges provided that they form C1 curve in all
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faces of the main shape.</li>
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</ul>
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<li>For meshing of 2D entities (<b>faces</b>):</li>
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@ -32,10 +32,11 @@ The following dialog box will appear:
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<li><b>Processing identical groups</b> - allows selecting the method
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of processing the namesake groups existing in the input meshes.
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They can be either <ul>
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<li>\b United - all elements of \em Group1 \em of Mesh_1 and \em Group1 of \em Mesh_2
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become the elements of \em Group1 of the \em Compound_Mesh, or</li>
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<li>\b Renamed - \em Group1 of \em Mesh_1 becomes \em Group1_1 and \em Group1 of \em Mesh_2
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becomes \em Group1_2.</li>
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<li>\b United - all elements of \em Group1 of \em Mesh_1 and \em
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Group1 of \em Mesh_2 become the elements of \em Group1 of the
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\em Compound_Mesh, or</li>
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<li>\b Renamed - \em Group1 of \em Mesh_1 becomes \em Group1_1
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and \em Group1 of \em Mesh_2 becomes \em Group1_2.</li>
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</ul>
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See \ref grouping_elements_page "Creating Groups" for more information
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about groups.</li>
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@ -101,9 +101,10 @@ creation and computing) of the following steps:
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3D sub-shapes (solids) and generate 3D mesh elements
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(tetrahedra, hexahedra etc.)
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As soon as you have selected an algorithm, you can create a hypothesis (or
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select an already created one). A set of accessible
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hypotheses includes only the hypotheses that can be used by the selected algorithm.
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As soon as you have selected an algorithm, you can create a
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hypothesis (or select an already created one). A set of accessible
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hypotheses includes only the hypotheses that can be used by the
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selected algorithm.
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\note
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- Some page(s) can be disabled if the geometrical
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@ -115,7 +116,7 @@ creation and computing) of the following steps:
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dialog pages related to the corresponding lower dimensions are
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disabled.
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- \b 0D page refers to 0D geometry (vertices) rather than
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to 0D elements. Mesh module does not provide algorithms that
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to 0D elements. Mesh module does not provide algorithms that
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produce 0D elements. Currently \b 0D page provides only one
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algorithm "Segments around vertex" that allows specifying the required
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size of mesh edges about the selected vertex (or vertices).
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@ -123,8 +124,8 @@ creation and computing) of the following steps:
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For example, you need to mesh a 3D object.
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First, you can change a default name of your mesh in the \b Name
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box. Then check that the selected geometrical object
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indicated in \b Geometry field, is what you wish to mesh; if not, select
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box. Then check that the selected geometrical object indicated in
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\b Geometry field, is what you wish to mesh; if not, select
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the correct object in the Object Browser. Click "Select" button
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near \b Geometry field if the name of the object has not yet
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appeared in \b Geometry field.
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@ -221,9 +222,9 @@ creation and computing) of the following steps:
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</center>
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\note
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- \a "Automatic" in the names of predefined sets of
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hypotheses does not actually mean that they are suitable for
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meshing any geometry.
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- \a "Automatic" in the names of predefined sets of hypotheses
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does not actually mean that they are suitable for meshing any
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geometry.
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- The list of sets of hypotheses can be shorter than in the
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above image depending on the geometry dimension.
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</li>
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@ -376,13 +377,13 @@ click "Compute" button of the toolbar.
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After the mesh computation finishes, the Mesh Computation information
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box appears. If you close this box and click "Compute" button again,
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without previously changing meshing parameters, the mesh will
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NOT be re-computed and the Mesh Computation information box will be shown with
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the same contents. (To fully re-compute the mesh, invoke \ref
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clear_mesh_anchor "Clear Mesh Data" command before).
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without previously changing meshing parameters, the mesh will NOT be
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re-computed and the Mesh Computation information box will be shown
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with the same contents. (To fully re-compute the mesh, invoke
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\ref clear_mesh_anchor "Clear Mesh Data" command before).
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If the mesh computation has been a success, the box shows information on the number of entities
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of different types in the mesh.
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If the mesh computation has been a success, the box shows information
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on the number of entities of different types in the mesh.
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\image html meshcomputationsucceed.png
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@ -58,7 +58,8 @@ The following dialog will appear:
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<li>If the <b>Extrusion to Distance</b> radio button is selected
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- specify the translation vector by which the elements will be extruded.
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</li>
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<p><br></p>
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\image html extrusionalongaline2.png
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<li>If the <b>Extrusion Along Vector</b> radio button is selected
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@ -70,7 +71,8 @@ The following dialog will appear:
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be negative).</li>
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</ul>
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</li>
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<p><br></p>
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\image html extrusionalongaline3.png
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<li>If the <b>Extrusion By Normal</b> radio button is selected,
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@ -70,9 +70,9 @@ The created groups can be later:
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- \ref importing_exporting_meshes_page "Exported" into a file as a
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whole mesh.
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In the Object Browser, if an item contains more
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than one group, it is possible to sort its groups by name in
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ascending order using <b>Sort children</b> context menu item.
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In the Object Browser, if an item contains more than one child group,
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it is possible to sort the groups by name in ascending order
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using <b>Sort children</b> context menu item.
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\image html smesh_sort_groups.png "Sorting groups"
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@ -4,8 +4,8 @@
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\n In MESH there is a functionality allowing import/export
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of meshes from/to \b MED, \b UNV (I-DEAS 10), \b DAT (simple ascii format), \b STL,
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\b GMF (internal format of DISTENE products, namely BLSurf, GHS3D and
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Hexotic algorithms) and \b CGNS format files. You can also export a
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\b GMF (internal format of DISTENE products, namely MG-CADSurf, MG-Tetra and
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MG-Hexa algorithms) and \b CGNS format files. You can also export a
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group as a whole mesh.
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@ -16,10 +16,11 @@
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either \ref importing_exporting_meshes_page "imported" or manually
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created);
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</li>
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<li>\ref importing_exporting_meshes_page "importing and exporting meshes in various formats";</li>
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<li>\ref importing_exporting_meshes_page "importing and exporting meshes in various formats";</li>
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<li>\subpage modifying_meshes_page "modifying meshes" with a vast
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array of dedicated operations;</li>
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<li>\subpage grouping_elements_page "creating groups of mesh elements";</li>
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<li>\subpage grouping_elements_page "creating groups of mesh
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elements";</li>
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<li>filtering mesh entities (nodes or elements) using
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\subpage filters_page "Filters" functionality for \ref
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grouping_elements_page "creating groups" and applying \ref
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@ -27,14 +28,17 @@
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<li>\subpage viewing_meshes_overview_page "viewing meshes" in
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the VTK viewer;</li>
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<li>applying to meshes \subpage quality_page "Quality Controls",
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allowing to highlight important elements;
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<li>taking various \subpage measurements_page "measurements" of the mesh objects.
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allowing to highlight important elements;</li>
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<li>taking various \subpage measurements_page "measurements" of the
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mesh objects.</li>
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</ul>
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It is possible to use the variables predefined in
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\subpage using_notebook_mesh_page "Salome notebook" to set parameters of operations.
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\subpage using_notebook_mesh_page "Salome notebook" to set parameters
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of operations.
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Mesh module preferences are described in the \subpage mesh_preferences_page section of SALOME Mesh Help.
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Mesh module preferences are described in the \subpage mesh_preferences_page
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section of SALOME Mesh Help.
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Almost all mesh module functionalities are accessible via
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\subpage smeshpy_interface_page "Mesh module Python interface".
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@ -38,7 +38,8 @@ object selectable in the dialog box. Two elements are considered coincident if t
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in the selected object.</li>
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<li><b>Coincident elements</b> is a list of groups of elements for
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merging. After the operation all elements of each group will
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be united into one element.
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be united into one element. The first element of a group is kept and
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the others are removed.
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<ul>
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<li>\b Remove button deletes the selected group from the list.</li>
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<li>\b Add button adds to the list a group of elements selected in the
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@ -57,7 +58,7 @@ object selectable in the dialog box. Two elements are considered coincident if t
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<br>
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\image html sort.png
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<center>moves the selected element to the first position in the
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group.</center>
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group in order to keep it in the mesh.</center>
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<br>
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</li>
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<li>To confirm your choice click \b Apply or <b>Apply and Close</b> button.</li>
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@ -38,9 +38,10 @@ In this mode additional controls are available:
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<ul>
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<li>\b Detect button generates the list of coincident nodes for the given
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\b Tolerance.</li>
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<li><b>Coincident nodes</b> is a list of groups of elements for
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merging. After the operation all elements of each group will
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be united into one element.
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<li><b>Coincident nodes</b> is a list of groups of nodes for
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merging. After the operation all nodes of each group will
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be united into one node. The first node of a group is kept and
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the others are removed.
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<ul>
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<li>\b Remove button deletes the selected group from the list.</li>
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<li>\b Add button adds to the list a group of nodes selected in the
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@ -65,7 +66,7 @@ nodes of selected groups in the 3D viewer.</li>
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<br>
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\image html sort.png
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<center>moves the selected node to the first position in the
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group.</center><br>
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group in order to keep it in the mesh.</center><br>
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</li>
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</ul>
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</li>
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@ -54,7 +54,7 @@ or in later sessions with this module according to the preferences.
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this operation will be carried out automatically.
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- <b>Mesh computation</b>
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- <b>Show a computation result notification</b> combob-ox allows to
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- <b>Show a computation result notification</b> combo-box allows to
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select the notification mode about a mesh computation result.
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There are 3 possible modes:
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- <b>Never</b> - do not show the result dialog at all;
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@ -28,7 +28,7 @@ selected criterion. The \b Remove button deletes the selected
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criterion. The \b Clear button deletes all criteria.
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\n Each <b>Entity type</b> has its specific list of criteria, however all
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filters have common syntax. The <b>Threshold Value</b> should be specified
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for each criterion. For numerical criteria it is necessary to indicate if
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for most criteria. For numerical criteria it is necessary to indicate if
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the found elements should be \b More, \b Less or \b Equal to this
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\b Value. You can also reverse the sense of a criterion using \b Unary
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operator \a Not and you should specify logical relations between
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@ -102,7 +102,7 @@ defined by the <b>Threshold Value</b>. The list of available geometric
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types depends on the current entity type.
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</li><li>
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<b>Entity type</b> allows selection of elements by their type defined
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as a combination of geometry type amd the number of nodes.
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as a combination of geometry type and the number of nodes.
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</li>
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</ul>
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@ -6,7 +6,8 @@
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locations of element corners (nodes).
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\note Depending on the chosen method and mesh geometry
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the smoothing can actually decrease the quality of elements.
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the smoothing can actually decrease the quality of elements and even
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make some elements inverted.
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<em>To apply smoothing to the elements of your mesh:</em>
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<ol>
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@ -2,7 +2,7 @@
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\page uniting_set_of_triangles_page Uniting a set of triangles
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\n It is possible to unite many neighboring triangles (cells) into
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\n It is possible to unite many neighboring triangles into
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quadrangles by deletion of the common edge.
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<em>To union several triangles:</em>
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@ -2,7 +2,7 @@
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\page uniting_two_triangles_page Uniting two triangles
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\n In MESH you can union two neighboring triangles (cells) by deletion
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\n In MESH you can union two neighboring triangles by deletion
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of the common edge.
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<em>To unite two triangles:</em>
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@ -20,7 +20,7 @@ The following dialog box shall appear:
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</li>
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<li>Enter IDs of nodes forming the required edge in the \b Edge field
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(the node IDs must be separated by dashes) or select this edge in
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(a couple of node IDs separated by a dash) or select this edge in
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the 3D viewer.</li>
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<li>Click the \b Apply or <b>Apply and Close</b> button.</li>
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</ol>
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