\page reorient_faces_page Reorient faces by vector
\n This operation allows changing orientation of a set of neighboring
-faces. The desired orientation is defined by a vector. Since direction
+faces. The desired orientation is defined by a vector. Since the direction
of face normals in the set can be even opposite, it is necessary to
specify a control face whose normal will be compared with the vector. This
-face can be specified either explicitly or can be found by closeness to
+face can be either specified explicitly or found by proximity to
a given point.
Orientation of a face is changed by reverting the order of its nodes.
<em>To change orientation of faces:</em>
<ol>
-<li>In the \b Modification menu select the <b>Reorient faces by
+<li>In the \b Modification menu select <b>Reorient faces by
vector</b> item or click <em>Reorient faces by
vector</em> button in the toolbar.
<li>In this dialog
<ul>
-<li>Specify a way of selection of the control face: by point or
- explicitely.</li>
-<li>Select an \b Object containing faces to reorient, either in the Object
- Browser or in the 3D Viewer; it can be either <ul>
- <li>group of faces,</li>
- <li>sub-mesh of faces or</li>
- <li>mesh.</li>
- </ul></li>
-<li>Specify either coordinates of a \b Point by which the control face
- will be found or the control \b Face it-self. You can easy specify the \b
- Point by either picking a node in the 3D Viewer or by selecting a vertex
- in the Object Browser. The \b Face can be either picked by mouse in
- the 3D Viewer or its ID can be entered by typing.</li>
-<li>Set up a \b Direction to be compared with the normal of the
- control face. You can either pick a node in the 3D Viewer then a \b Direction
- from the coordinate system origin to the selected node will be set,
- or you can pick two nodes (holding Shift button) then a \b Direction
- from the first to the second node will be set.</li>
+<li>Specify the way of selection of the control face: by point or
+ explicitly.</li>
+<li>Select the \b Object (mesh, sub-mesh or a group of faces) containing faces to reorient in the Object Browser or in the 3D Viewer.</li>
+<li>Specify the coordinates of the \b Point by which the control face
+ will be found or of the control \b Face itself. You can easy specify the \b
+ Point by either picking a node in the 3D Viewer or selecting a vertex
+ in the Object Browser. It is possible to pick the \b Face by mouse in
+ the 3D Viewer or enter its ID.</li>
+<li>Set up the \b Direction vector to be compared with the normal of the
+ control face. If you pick a node in the 3D Viewer then the \b Direction
+ vector will go from the coordinate system origin to the selected node.
+ If you pick two nodes (holding Shift button) then the \b Direction vector
+ will go from the first to the second node.</li>
</ul>
</li>
