Additional fixes for the documentation.
\image html hypo_quad_params_res.png "The resulting mesh"
+This hypothesis can be also used to mesh face that represents a
+segment of the circular face. There is one limitaion of the <b>Quadrangle
+mapping</b> algorithm related to the selecting of the degenerated
+vertex for the faces which are built from the angle > 180 degrees (see
+next picture).
+
+\image html hypo_quad_params_2.png "A 3/4 part of circle face"
+
+Selection of the wrong vertex for the <b>Quadrangle parameters</b>
+hypothesis will lead to the wrong mesh generation. The picture below
+shows good (left) and bad (right) results of meshing.
+
+\image html hypo_quad_params_res_2.png "The resulting meshes"
+
<br>
\anchor quadrangle_preference_anchor
<h2>Quadrangle Preference</h2>
<ul>
<li>\ref max_element_area_anchor "Max Element Area"</li>
<li>\ref length_from_edges_anchor "Length from Edges"</li>
+<li>\ref hypo_quad_params_anchor "Quadrangle Parameters"</li>
<li>\ref quadrangle_preference_anchor "Quadrangle Preference"</li>
<li>\ref triangle_preference_anchor "Triangle Preference"</li>
</ul>
3D extrusion algorithm can be used for meshing prisms, i.e. <b>3D Shapes</b>
defined by two opposing faces having the same number of vertices and
-edges and meshed using the \ref projection_algos_page "2D Projection"
-algorithm. These two faces should be connected by quadrangle "side"
-faces.
+edges and meshed using, for example, the \ref projection_algos_page
+"2D Projection" algorithm. These two faces should be connected by
+quadrangle "side" faces.
The opposing faces can be meshed with either quadrangles or triangles,
while the side faces should be meshed with quadrangles only.
have in the same 3D mesh such elements as hexahedrons, prisms and
polyhedrons.
-*/
\ No newline at end of file
+\note This algorithm works correctly only if the opposing faces have
+the same (or similar) meshing topography. Otherwise, 3D extrusion
+algorithm can fail to build mesh volumes.
+
+*/
aHelpFileName = "radial_quadrangle_1D2D_algo_page.html";
else if ( aHypType == "SegmentLengthAroundVertex")
aHelpFileName = "segments_around_vertex_algo_page.html";
-
+ else if ( aHypType == "QuadrangleParams")
+ aHelpFileName = "a2d_meshing_hypo_page.html#hypo_quad_params_anchor";
return aHelpFileName;
}
