X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=doc%2Fsalome%2Fgui%2FGEOM%2Finput%2Fsection_operation.doc;h=0b741eed44c2465f905efaf1d4a664bb12547ef8;hb=ac61a2cdfc5f166fb3bc17f82e89a460555548cb;hp=5d60cf433d0a40342e920c52883b280294fd71ab;hpb=af323ccd1d47fe27b941822a729014c33859acfe;p=modules%2Fgeom.git
diff --git a/doc/salome/gui/GEOM/input/section_operation.doc b/doc/salome/gui/GEOM/input/section_operation.doc
index 5d60cf433..0b741eed4 100644
--- a/doc/salome/gui/GEOM/input/section_operation.doc
+++ b/doc/salome/gui/GEOM/input/section_operation.doc
@@ -2,19 +2,31 @@
\page section_opeartion_page Section
-To produce a \b Section operation in the Main Menu select
-Operations - > Boolean - > Section
+\b Section operation creates an edge or a wire representing the intersection of surfaces of two shapes.
-This operation creates the section between 2 shapes.
+To produce it, select in the main menu Operations - > Boolean - > Section
-The \b Result will be any \b GEOM_Object (EDGE or WIRE).
+\image html neo-section.png "Section dialog"
-TUI Command: geompy.MakeSection(s1, s2)\n
-Arguments: Name + 2 shapes.\n
-Advanced option:
-\ref restore_presentation_parameters_page "Set presentation parameters and sub-shapes from arguments".
+In this dialog:
+- Input or accept the default \b Name of the resulting shape.
+- Click the arrow button and select in the Object Browser or in the Viewer the intersecting Objects.
+- Activate the corresponding check-box if you wish to Detect Self-intersections .
+- Activate \ref restore_presentation_parameters_page "Advanced options" if required.
+- Press "Apply" or "Apply & Close" button to get the result (EDGE or WIRE).
-\image html neo-section.png "Section dialog"
+\note This algorithm does not find all types of self-intersections. It is tuned
+ to detect vertex/vertex, vertex/edge, edge/edge, vertex/face and edge/face
+ intersections. Face/face intersections detection is switched off as it
+ is a time-consuming operation that gives an impact on performance. To find
+ all self-intersections use \ref check_self_intersections_page
+ "Detect Self-intersection tool".
+
+This operation can be performed using a TUI Command:
+
+geompy.MakeSection(s1, s2, checkSelfInte)
+
+Arguments: Name + 2 shapes + an optional flag for self-intersection check.
Example:
@@ -22,13 +34,12 @@ The \b Result will be any \b GEOM_Object (EDGE or WIRE).
\image html sectionsn.png "The resulting object"
-Our TUI Scripts provide you with useful examples of the use of
+Our TUI Scripts provide you with useful examples of the use of
\ref tui_section "Boolean Operations".
More details
-For a detailed description of the Boolean operations please refer to
-this document.
+Please refer to this document for a detailed description of Boolean operations.
It provides a general review of the Partition and Boolean
operations algorithms, describes the usage methodology and highlights
major limitations of these operations.