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Open file
DemoRASA.CATPart in the samples directory.
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Click the Geometrical Zone icon
.
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Select the Line button, call the contour you
are about to select "MyContour"
and click the orange outline in the sensitive icon.
![](images/GeomZone2NLS.gif)
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Select this contour:
![](images/GeomZone1NLS.gif)
Click OK
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Create a sweeping operation in the tree and select the
whole body for the part.
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Choose Select zones in the limiting contour
contextual menu.
In the dialog box that is displayed, choose MyContour and
select it with the arrow.
Click OK.
![](images/GeomZone4NLS.gif)
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Click Tool Path Replay
.
![](images/GeomZone5NLS.gif)
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You can also define geometrical zones in an operation
dialog box.
Open the sweeping operation you have just defined.
Select this face as an area to avoid:
![](images/GeomZone6NLS.gif)
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Select Export in the Area to avoid
contextual menu and call it MyPlane.
![](images/ExportAreaToAvoidNLS.gif)
![](images/GeomZone7NLS.gif)
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Click OK. You can now use this surface in the
same way as you used the contour above.