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Difference between Extrusion and Boundary representation

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  • E Offline
    E Offline
    e.hol
    wrote on last edited by
    #1

    Hey,

    Can anyone tell me the difference between Extrusion and Boundary representation. Sometimes a slab has the geometry Extrusion and sometimes Boundary representation while the floors in Revit have the same properties.

    Is it possible to export the floor to either property?

    786fd27a-b379-427c-b332-65bbb1f8b03c-image.png

    4e737f98-2def-48af-927e-34699fc3f119-image.png

    Thank you in advance

    Erik

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    • JSNJ Offline
      JSNJ Offline
      JSN
      wrote on last edited by
      #2

      The geometric representation is defined by your exporting application. The difference is explained e.g. here:
      https://damassets.autodesk.net/content/dam/autodesk/draftr/2528/180213_IFC_Handbuch.pdf

      One issue you may notice within Solibri can be related to material representations …
      https://society.solibri.com/topic/2327/material-information-thickness-not-shown-correctly/5

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