Common

Common operation cuts the common part of a list of shapes and transforms it into an independent geometrical object.

To produce it, select in the main menu Operations - > Boolean - > Common.

Common dialog

In this dialog:

• Input or accept the default Name of the resulting shape.
• Click the arrow button and select in the Object Browser or in the Viewer the Objects the common part which of should be found.
• Activate the corresponding check-box if you wish to Detect Self-intersections
• Activate Advanced options if required.
• Press "Apply" or "Apply & Close" button to get the result (GEOM_Object).

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 Detect Self-intersection tool.

This operation can be performed using a TUI Command:

geompy.MakeCommonList(theShapesList, checkSelfInte)

Arguments: Name + a list of shapes + an optional flag for self-intersection check.

There is also a special TUI Command for the Common operation on two shapes :

geompy.MakeCommon(s1, s2, checkSelfInte)

Arguments: Name + 2 shapes + an optional flag for self-intersection check.

Example:

The initial shapes

The resulting object

Our TUI Scripts provide you with useful examples of the use of Boolean Operations.

More details

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.