geom/doc/salome/gui/GEOM/input/section_operation.doc

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\page section_opeartion_page Section

\b Section operation creates an edge or a wire representing the intersection of surfaces of two shapes.

To produce it, select in the main menu <b>Operations - > Boolean - > Section</b>

\image html neo-section.png "Section dialog"

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 <b>Objects</b>.
- Activate the corresponding check-box if you wish to <b> Detect Self-intersections </b>.
- Activate \ref restore_presentation_parameters_page "Advanced options" if required.
- Press "Apply" or "Apply & Close" button to get the result (EDGE or WIRE).

\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 <b>TUI Command:</b> 

<em>geompy.MakeSection(s1, s2, checkSelfInte)</em>

<b>Arguments:</b> Name + 2 shapes + an optional flag for self-intersection check.

<b>Example:</b>

\image html fusesn1.png "The initial shapes"

\image html sectionsn.png "The resulting object"

Our <b>TUI Scripts</b> provide you with useful examples of the use of
\ref tui_section "Boolean Operations".

<b> More details </b>

Please refer to <a href="SALOME_BOA_PA.pdf">this document</a> 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.

*/