X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=doc%2Fsalome%2Fgui%2FSMESH%2Finput%2Fcartesian_algo.doc;h=7bf8306905efcb201d6b21cfa1bfce3af26ea6e6;hp=3240150c77f9e90999780667fd9e03fda5c5e771;hb=5d68554076bbca0e1e95fb0db215a6c2b84b6c54;hpb=bd4e115a78b52e3fbc016e5e30bb0e19b2a9e7d6

diff --git a/doc/salome/gui/SMESH/input/cartesian_algo.doc b/doc/salome/gui/SMESH/input/cartesian_algo.doc
index 3240150c7..7bf830690 100644
--- a/doc/salome/gui/SMESH/input/cartesian_algo.doc
+++ b/doc/salome/gui/SMESH/input/cartesian_algo.doc
@@ -31,7 +31,7 @@ nodes are inside and some outside. </li>
 To apply this algorithm when you define your mesh, select <b>Body
   Fitting</b> in the list of 3D algorithms and click <em> "Add
   Hypothesis" </em> button and <em>"Body Fitting Parameters"</em>" menu
-  item. Dialog of <b>Body Fitting Parameters
+item. Dialog of <b>Body Fitting Parameters
   hypothesis</b> will appear.
 
 <br>
@@ -42,34 +42,64 @@ To apply this algorithm when you define your mesh, select <b>Body
 
 This dialog allows to define
 <ul>
-<li>\b Name of the algorithm </li>
-<li> Minimal size of a cell truncated by the geometry boundary. If the
-  size of a truncated grid cell is \b Threshold times less than a
-  initial cell size, then a mesh element is not created. </li>
-<li> Cartesian structured grid. Each grid axis is defined
-  individually. <b> Definition mode </b> chooses a way of grid
-  definition: <ul> 
-  <li> You can specify the \b Coordinates of grid nodes. \b Insert button
-    inserts a node at distance \b Step (negative or positive) from a
-    selected node. \b Delete button removes a selected node. Double
-    click on a coordinate in the list enables its edition. A grid
-    defined by \b Coordinates should enclose the geometry, else the
-    algorithm will fail. </li>
-  <li> You can define the \b Spacing of a grid as an algebraic formula 
-    <em>f(t)</em> where \a t is a position along a grid axis
-    normalized at [0.0,1.0]. The whole range of geometry can be
-    divided into sub-ranges with their own spacing formulas to apply;
+  <li>\b Name of the algorithm. </li>
+  <li> Minimal size of a cell truncated by the geometry boundary. If the
+    size of a truncated grid cell is \b Threshold times less than a
+    initial cell size, then a mesh element is not created. </li>
+  <li> <b> Implement Edges </b> check-box activates incorporation of
+  geometrical edges in the mesh.
+\image html cartesian_implement_edge.png "'Implement Edges' switched off (left) and on (right)"
+  <li> Cartesian structured grid. Location of nodes along each grid axis
+    is defined individually. <b> Definition mode </b> chooses a way of
+    grid definition:
+    <ul>
+      <li> You can specify the \b Coordinates of grid nodes. \b Insert button
+        inserts a node at distance \b Step (negative or positive) from a
+        selected node. \b Delete button removes a selected node. Double
+        click on a coordinate in the list enables its edition. 
+        \b Note that node coordinates are measured along directions of
+        axes that can differ from the directions of the Global Coordinate
+        System.</li>
+      <li> You can define the \b Spacing of a grid as an algebraic formula
+        <em>f(t)</em> where \a t is a position along a grid axis
+        normalized at [0.0,1.0]. The whole range of geometry can be
+        divided into sub-ranges with their own spacing formulas to apply;
     \a t varies between 0.0 and 1.0 within each sub-range. \b Insert button
-    divides a selected range into two ones. \b Delete button adds the
-    selected sub-range to the previous one. Double click on a range in
-    the list enables edition of its right boundary. Double click on a
-    function in the list enables its edition. 
-  </li> </ul>
-</li>
+        divides a selected range into two ones. \b Delete button adds the
+        selected sub-range to the previous one. Double click on a range in
+        the list enables edition of its right boundary. Double click on a
+        function in the list enables its edition.
+    </li> </ul>
+  </li>
+  <li> Coordinates of a <b> Fixed Point</b>. They allow to exactly
+    locate a grid node in a direction defined by spacing. If all the three
+    directions are defined by spacing, then there will be a mesh node at
+    the <b> Fixed Point</b>. If two directions are defined by spacing,
+    then there will be at least a link between mesh nodes passing through
+    the <b> Fixed Point</b>. If only one direction is defined by spacing,
+    then there will be at least an element facet passing through
+    the <b> Fixed Point</b>. If no directions are defined by spacing,
+    <b> Fixed Point</b> is disabled.</li>
+  <li> <b> Directions of Axes</b>. You can set up almost any
+    directions of grid axes that can help in generation of as many as
+    possible hexahedral elements.
+    <ul>
+      <li><b> Orthogonal Axes </b> check-box, if activated, keeps the
+        axes orthogonal during their modification. </li>
+      <li> Selection buttons enable snapping corresponding axes to
+        direction of a geometrical edge selected in the Object
+        Browser. Edge direction is defined by coordinates of its end
+        points.</li>
+      <li><b> Optimal Axes</b> button runs an algorithm that tries to
+        set the axes so that a number of generated hexahedra to be
+        maximal.</li>
+      <li><b> Reset </b> button returns the axes in a default position
+      parallel to the axes of the Global Coordinate System.</li> 
+  </ul></li>
 </ul>
 
 <br>
-<b>See Also</b> a sample TUI Script of a 
-\ref tui_cartesian_algo "Usage of Body Fitting algorithm".  
+<b>See Also</b> a sample TUI Script of a
+\ref tui_cartesian_algo "Usage of Body Fitting algorithm".
 
 */