+++ /dev/null
-/*!
-
-\page aspect_ratio_3d_page Aspect ratio 3D
-
-\n The <b>Aspect Ratio 3D</b> mesh quality criterion calculates the same
-parameter as the \ref aspect_ratio_page "Aspect ratio" criterion, but
-it is applied to 3D mesh elements: tetrahedrons, pentahedrons,
-hexahedrons, etc.
-
-- The <b>Aspect Ratio</b> of a \b tetrahedron 3D element defined by
-vertices {a,b,c,d } is calculated by the formula:
-
-\image html formula1.png
-
-- Other element types like polyhedron, pentahedron and hexahedron use
- the following formula:
-
-\image html formula2.png
-
-<em>To apply the Aspect Ratio 3D quality criterion to your mesh:</em>
-<ol>
-<li>Display your mesh in the viewer.</li>
-
-<li>Choose <b>Controls > Volume Controls > Aspect Ratio 3D</b> or click
-<em>"Aspect Ratio 3D"</em> button of the toolbar.
-
-\image html image144.png
-<center><em>"Aspect Ratio 3D" button</em></center>
-
-Your mesh will be displayed in the viewer with its elements colored
-according to the applied mesh quality control criterion:
-
-\image html image86.jpg
-</li>
-</ol>
-
-<br><b>See Also</b> a sample TUI Script of a
-\ref tui_aspect_ratio_3d "Aspect Ratio 3D quality control" operation.
-
-*/
