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       Collision detections between scene geometry -

Detailed Description

       class SoIntersectionDetectionAction
           The SoIntersectionDetectionAction class is for detecting
           intersecting primitives in a scene.

       Note that only collisions between actual geometry in the scene is
       detected, so the contents of some special nodes like e.g. SoText2 and
       SoImage (which projects to screen-plane bitmap graphics, and not actual
       polygons) will not be considered for collision detection. "

Version 2.5.0                   Collision2detections between scene geometry(3)