3 \page mesh_infos_page Mesh Information
5 The user can obtain information about the selected mesh object
6 (mesh, sub-mesh or group) using <b>Mesh Information</b> dialog box.
8 To view the <b>Mesh Information</b>, select your mesh, sub-mesh or
9 group in the <b>Object Browser</b> and invoke <b>Mesh Information</b>
10 item from the \b Mesh menu or click <em>"Mesh Information"</em> button
13 <center>\image html image49.png
14 <em>"Mesh Information" button</em></center>
16 The <b>Mesh Information</b> dialog box provides three tab pages:
17 - <b>\ref advanced_mesh_infos_anchor "Base Info"</b> - to show
18 base and quantitative information about the selected mesh object.
19 - <b>\ref mesh_element_info_anchor "Element Info"</b> - to show
20 detailed information about the selected mesh nodes or elements.
21 - <b>\ref mesh_addition_info_anchor "Additional Info"</b> - to show
22 additional information available for the selected mesh, sub-mesh or
24 - <b>\ref mesh_quality_info_anchor "Quality Info"</b> - to show
25 overall quality information about the selected mesh, sub-mesh or group
28 \anchor advanced_mesh_infos_anchor
29 <h2>Base Information</h2>
31 The <b>Base Info</b> tab page of the dialog box provides general
32 information on the selected object - mesh, sub-mesh or mesh group:
33 name, type, total number of nodes and elements separately for each
34 type: 0D elements, edges, faces, volumes, balls.
36 <center>\image html advanced_mesh_infos.png
37 <em>"Base Info" page</em></center>
39 \anchor mesh_element_info_anchor
40 <h2>Mesh Element Information</h2>
42 The <b>Element Info</b> tab page of the dialog box gives detailed
43 information about the selected mesh node(s) or element(s), namely:
47 - Coordinates (X, Y, Z);
48 - Connectivity information (connected elements); double click in
49 this line reveals information about these elements;
50 - Position on a shape (for meshes built on a geometry);
51 - Groups information (names of groups the node belongs to).
53 <center>\image html eleminfo1.png
54 <em>"Element Info" page, node information</em></center>
59 - Type (triangle, quadrangle, etc.);
60 - Gravity center (X, Y, Z coordinates);
61 - Connectivity information (connected nodes); double click in
62 a line of a node reveals the information about this node;
63 - Quality controls (area, aspect ration, volume, etc.);
64 - Position on a shape (for meshes built on a geometry);
65 - Groups information (names of groups the element belongs to).
67 <center>\image html eleminfo2.png
68 <em>"Element Info" page, element information</em></center>
70 The user can either input the ID of a node or element he wants to
71 analyze directly in the dialog box or select the node(s) or element(s) in
74 \note The information about the groups, to which the node or element belongs,
75 can be shown in a short or in a detailed form. By default, for performance
76 reasons, this information is shown in a short form (group names
77 only). The detailed information on groups can be switched on via the user
78 preferences, see \ref mesh_preferences_page.
80 \anchor mesh_addition_info_anchor
81 <h2>Additional Information</h2>
83 The <b>Additional Info</b> tab page of the dialog box provides an
84 additional information on the selected object: mesh, sub-mesh or
87 For a mesh object, the following information is shown:
89 - Type: based on geomerty, imported, standalone
90 - Shape (if mesh is based on geometry)
91 - File (if mesh is imported from the file)
95 <center>\image html addinfo_mesh.png
96 <em>"Additional Info" page, mesh information</em></center>
99 For a sub-mesh object, the following information is shown:
104 <center>\image html addinfo_submesh.png
105 <em>"Additional Info" page, sub-mesh information</em></center>
108 For a group object, the following information is shown:
111 - Type: standalone, group on geometry, group on filter
112 - Entity type: node, edge, face, volume
115 - Number of underlying nodes (for non-nodal groups)
117 <center>\image html addinfo_group.png
118 <em>"Additional Info" page, group information</em></center>
121 \note For the performance reasons, the number of underlying nodes is
122 computed only by demand. For this, the user should press the "Compute"
123 button (see picture). Also, the number of underlying nodes is
124 automatically calculated if the size of the group does not exceed
125 the "Automatic nodes compute limit" set via the "Mesh information"
126 preferences (zero value means no limit).
128 \anchor mesh_quality_info_anchor
129 <h2>Quality Information</h2>
131 The <b>Quality Info</b> tab provides overall information about mesh quality controls on the selected object - mesh, sub-mesh or mesh group:
134 - Number of free nodes;
135 - Number of double nodes;
137 - Number of double edges;
139 - Number of double faces;
140 - Number of over-constrained faces;
141 - Aspect Ratio histogram;
142 - Volume information:
143 - Number of double volumes;
144 - Number of over-constrained volumes;
145 - Aspect Ratio 3D histogram.
147 <center>\image html ctrlinfo.png
148 <em>"Quality Info" page</em></center>
150 \note It is possible to set "Double nodes tolerance" in the dialog for a local change
151 or via the "Quality controls" in Mesh preferences.
153 \note For performance reasons, all quality control values for big meshes are
154 computed only by demand. For this, press the "compute"
155 button. Also, values are automatically computed if the number of
156 nodes / elements does not exceed the "Automatic controls compute limit" set
157 via the "Mesh information" preferences (zero value means that there is no limit).
159 \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).
161 The button \b "Dump" allows printing the information displayed in the
162 dialog box to a .txt file.
164 In case you get <b>Mesh Information</b> via a TUI script, the information is
165 displayed in the Python Console.
167 See the \ref tui_viewing_mesh_infos "TUI Example".