Calculate area of room boundary walls

[Anonymous]

Hi,

how calculate area of boundary room walls with opening?

Walls which have door or window is not valid calculate by SpatialElementGeometryCalculator. 

 foreach( SpatialElement e in roomCol )
      {
        Room room = e as Room;
 
        if( room != null )
        {
          try
          {
            Autodesk.Revit.DB
              .SpatialElementGeometryCalculator
                calc = new Autodesk.Revit.DB
                  .SpatialElementGeometryCalculator(
                    doc, sebOptions );
 
            SpatialElementGeometryResults results
              = calc.CalculateSpatialElementGeometry(
                room );
 
            Solid roomSolid = results.GetGeometry();
 
            foreach( Face face in roomSolid.Faces )
            {
              IList<SpatialElementBoundarySubface>
                subfaceList = results.GetBoundaryFaceInfo(
                  face );
 
              foreach( SpatialElementBoundarySubface
                subface in subfaceList )
              {
                if( subface.SubfaceType
                  == SubfaceType.Side )
                {
                  Element wall = doc.GetElement(
                    subface.SpatialBoundaryElement
                      .HostElementId );
 
                  double subfaceArea = subface
                    .GetSubface().Area;
                 ...
                

[jeremytammik]

Dear Anton,

Happy New Year to you!

Have you set the SpatialElementBoundaryLocation = SpatialElementBoundaryLocation.Center to close the geometry, as suggested by Arif?

http://thebuildingcoder.typepad.com/blog/2015/03/findinserts-retrieves-all-openings-in-all-wall-type...

Apparently, it does not work for Finish.

Cheers,

Jeremy

[Anonymous]

Jeremy, thanks you and Happy New Year to you!
SpatialElementBoundaryLocation.Center and SpatialElementBoundaryLocation.Finish returns identical results in my case.

Window area is not excluded from wall in
subface.GetSubface().Area

[jeremytammik]

Strange. I wonder how Arif can succeed in using it like that?