After you select an error, <b>Show Sub-shape</b> button allows
visualizing in magenta the geometrical entity that causes the error.
+<center>
\image html failed_computation.png
<em>3D algorithm failed to compute mesh on a box shown using <b>Show
Sub-shape</b> button</em>
+</center>
<b>Publish Sub-shape</b> button publishes the sub-shape, whose meshing
has failed, in the Geometry component as a child of the main shape, which
<b>Bad Mesh to Group</b> button creates groups of bad mesh entities
to facilitate their analysis.
+<center>
\image html show_bad_mesh.png
<em>Edges bounding a hole in the surface are shown in magenta using <b>Show
bad Mesh</b> button</em>
+</center>
\note Mesh Computation Information box does not appear if you set
"Mesh computation/Show a computation result notification" preference