/*!

\page view_geom_obj_page Viewing geometrical objects

\n Newly created geometrical objects are automatically displayed in
the <b>OCC 3D Viewer</b>.

\n <b>OCC 3D Viewer</b> is described in the documentation on <b>GUI
module</b>.
\n After the object has appeared in the Viewer, you can select it with
left mouse click to change its presentation parameters and access to
other useful options by right-clicking on the selected object.

\image html dialog.png

<ul>
<li><b>Rename</b> - allows to change the name of the geometric
object.</li>
<li><b>Delete</b> - irreversibly deletes the selected object from the
viewer and from the Object Browser.</li> 
<li>\subpage display_mode_page "Display Mode" - allows to select between
Wireframe and Shading presentation.</li>
<li>\subpage color_page "Color" - allows to change the filling color in
the standard <b>Select Color</b> menu.</li>
<li>\subpage transparency_page "Transparency" - allows to change the
transparency of geometrical objects.</li>
<li>\subpage isolines_page "Isos" - allows to change the number of
isolines displayed within a shape.</li>
<li><b>Hide</b> - allows to hide the selected geometrical object from the
viewer. TUI Command : <em>sg.EraseOnly(ID)</em>
\n \image html image18.png
</li>
<li><b>Hide all</b> - allows to hide all objects from the viewer. TUI
Command: <em>sg.EraseAll()</em>
\n \image html image26.png
</li>
<li><b>Show Only</b> - allows to display only the selected
geometrical object. TUI Command: <em>sg.DisplayOnly(ID)</em>
\n \image html image33.png
</li>
<li><b>Update</b> - refreshes the presentation of your geometrical object in the
Object Browser, applying all recent changes.</li>
<li><b>Dump view</b> - exports an object from the viewer in bmp, png,
jpg or jpeg image format.</li>
<li><b>Change background</b> - allows to redefine the background
color. By default it is black.
\n\n Some of these functionalities are available through right-clicking
on the viewer background:

\image html image2.jpg <br></li>

<li><b>Select Only</b> provides a filter for exclusive selection of objects of a certain type.</li>
</ul>

*/