X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=doc%2Fsalome%2Fgui%2FSMESH%2Finput%2Fcutting_quadrangles.doc;h=52b3b1ea67f3964bd39218281879386845fb70c0;hb=1227aa421b394e8a149d05f23149fd973208d84c;hp=2865835a582bcf73c119607f044811dca0c1c6b8;hpb=f5016d85b7b4b88623723027a1585c6414c4dc66;p=modules%2Fsmesh.git
diff --git a/doc/salome/gui/SMESH/input/cutting_quadrangles.doc b/doc/salome/gui/SMESH/input/cutting_quadrangles.doc
index 2865835a5..52b3b1ea6 100644
--- a/doc/salome/gui/SMESH/input/cutting_quadrangles.doc
+++ b/doc/salome/gui/SMESH/input/cutting_quadrangles.doc
@@ -2,13 +2,12 @@
\page cutting_quadrangles_page Cutting quadrangles
-\n This operation allows to cut one or several quadrangle elements by
-addition of a supplementary edge which will connect two opposite
-corners.
+\n This operation allows cutting one or several quadrangle elements
+into two or four triangles.
To cut quadrangles:
-- Display a mesh or a sub-mesh in the 3D viewer.
+- Display a mesh, a 2D sub-mesh or a group of faces in the 3D viewer.
- In the \b Modification menu select the Cutting of quadrangles item or
click "Cutting of quadrangles" button in the toolbar.
@@ -19,33 +18,45 @@ The following dialog box will appear:
\image html a-cuttingofquadrangles.png
-\par
-- The main list contains the list of quadrangles. You can click on
-an quadrangle in the 3D viewer and it will be highlighted (lock Shift
-keyboard button to select several quadrangles). Click \b Add button and
-the ID of this quadrangle will be added to the list. To remove a
-selected element or elements from the list click \b Remove button. Sort
-list button allows to sort the list of IDs. \b Filter button allows to
-apply a definite filter to the selection of quadrangles.
-- Apply to all radio button allows to modify the orientation of all
-quadrangles of the currently displayed mesh or sub-mesh.
-- \b Preview - provides a preview of cutting in the viewer.
+- The main list contains the list of quadrangles selected for cutting. You can
+ click on an quadrangle in the 3D viewer and it will be highlighted (lock Shift
+ keyboard button to select several quadrangles). Click \b Add button and the ID of
+ this quadrangle will be added to the list. To remove a selected element or elements
+ from the list click \b Remove button. Sort list button allows to sort the
+ list of IDs. \b Filter button allows to apply a definite filter to the selection of
+ quadrangles.
+- Apply to all check box allows to cut all quadrangles of the selected mesh,
+ sub-mesh or group.
+- \b Preview provides a preview of cutting in the viewer. It is disabled for Cut
+ into 4 triangles as this cutting way implies no ambiguity.
-- \b Criterion
+
- \b Criterion defines a cutting way.
-- Use diagonal 1-3 and Use diagonal 2-4 allows to
-specify the opposite corners which will be connected by the cutting
-edge.
-- Use numeric factor - allows to chose a quality criterion
- optimization of which will be used to select the cutting edge.
+- Cut into 4 triangles selects cutting the quadrangle into four triangles by
+ inserting a new node at the center of quadrangle. The other options selects cutting
+ the quadrangle into two triangles by connecting nodes of either of the two diagonals.
+
- Use diagonal 1-3 and Use diagonal 2-4 allows to specify the
+ opposite corners which will be connected to form two new triangles.
+- Use numeric functor allows to choose a quality metric which will be
+ optimized when choosing a diagonal for cutting a quadrangle.
+
+ - Minimum diagonal cuts by the shortest diagonal.
+ - Aspect Ratio cuts by the diagonal splitting the quadrangle into
+ triangles with \ref aspect_ratio_page "Aspect Ratio" closer to 1.
+ - Minimum Angle cuts by the diagonal splitting the quadrangle into
+ triangles with \ref minimum_angle_page "Minimum Angle" closer to 60
+ degrees.
+ - Skew cuts by the diagonal splitting the quadrangle into triangles
+ with \ref skew_page "Skew" closer to 0.0 degrees.
+
+
-- Select from - allows to choose a sub-mesh or an existing
-group whose quadrangle elements will be automatically added to the
-list.
+- Select from allows to choose a sub-mesh or an existing group whose
+ quadrangle elements will be automatically added to the main list.