By zone or border

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In this method, the contour is built on the already existing elements.

When specifying a point inside a group of elements, a cont will be created. The components of this contour are located in this zone.

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When selecting the contour boundary, its elements will be created automatically along the chain to the nearest intersection with another object.

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To continue the contour, select its next element. If the specified element is not connected to the previously built one, the system will try to complete it along the chain.

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