Rebuild 
> Data structure check, 
3-D Geometry. To perform a data structure check, activate the Information tab and select3-D, Further > Rebuild > Data structure check, 3-D Geometry.
The essential data structure tests will then be carried out by HiCAD automatically one after another. If the tests are unsuccessful, or if HiCAD is unable to correct possible errors automatically, please contact our Hotline.
Version 1702 - HiCAD Interfaces | Date: 9/2012 | © Copyright 2012, ISD Software und Systeme GmbH