/// <summary>
/// Exports Walls.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="wallElement">
/// The wall element.
/// </param>
/// <param name="geometryElement">
/// The geometry element.
/// </param>
/// <param name="productWrapper">
/// The IFCProductWrapper.
/// </param>
public static void Export(ExporterIFC exporterIFC, Wall wallElement, GeometryElement geometryElement, IFCProductWrapper productWrapper)
{
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
bool exportAsOldCurtainWall = ExporterIFCUtils.IsLegacyCurtainWall(wallElement);
bool exportAsCurtainWall = (wallElement.CurtainGrid != null);
try
{
if (exportAsOldCurtainWall)
ExporterIFCUtils.ExportLegacyCurtainWall(exporterIFC, wallElement, geometryElement, productWrapper);
else if (exportAsCurtainWall)
ExporterIFCUtils.ExportCurtainWall(exporterIFC, wallElement, geometryElement, productWrapper);
else
ExportWall(exporterIFC, wallElement, geometryElement, productWrapper);
}
catch (System.Exception ex)
{
throw ex;
}
// create join information.
ElementId id = wallElement.Id;
IList<IList<IFCConnectedWallData>> connectedWalls = new List<IList<IFCConnectedWallData>>();
connectedWalls.Add(ExporterIFCUtils.GetConnectedWalls(wallElement, IFCConnectedWallDataLocation.Start));
connectedWalls.Add(ExporterIFCUtils.GetConnectedWalls(wallElement, IFCConnectedWallDataLocation.End));
for (int ii = 0; ii < 2; ii++)
{
int count = connectedWalls[ii].Count;
IFCConnectedWallDataLocation currConnection = (ii == 0) ? IFCConnectedWallDataLocation.Start : IFCConnectedWallDataLocation.End;
for (int jj = 0; jj < count; jj++)
{
ElementId otherId = connectedWalls[ii][jj].ElementId;
IFCConnectedWallDataLocation joinedEnd = connectedWalls[ii][jj].Location;
if ((otherId == id) && (joinedEnd == currConnection)) //self-reference
continue;
exporterIFC.RegisterWallConnectionData(id, otherId, currConnection, joinedEnd, IFCAnyHandle.Create());
}
}
// look for connected columns. Note that this is only for columns that interrupt the wall path.
IList<FamilyInstance> attachedColumns = ExporterIFCUtils.GetAttachedColumns(wallElement);
int numAttachedColumns = attachedColumns.Count;
for (int ii = 0; ii < numAttachedColumns; ii++)
{
ElementId otherId = attachedColumns[ii].Id;
IFCConnectedWallDataLocation connect1 = IFCConnectedWallDataLocation.NotDefined; // can't determine at the moment.
IFCConnectedWallDataLocation connect2 = IFCConnectedWallDataLocation.NotDefined; // meaningless for column
exporterIFC.RegisterWallConnectionData(id, otherId, connect1, connect2, IFCAnyHandle.Create());
}
tr.Commit();
}
}