/// <summary>
/// returns a Hash for the geometric behaviour of this object
/// </summary>
/// <param name="solid"></param>
/// <returns></returns>
public static int GetGeometryHashCode(this IfcShell shell)
{
if (shell is IfcOpenShell)
{
return(((IfcOpenShell)shell).GetGeometryHashCode());
}
if (shell is IfcClosedShell)
{
return(((IfcClosedShell)shell).GetGeometryHashCode());
}
else
{
return(shell.GetHashCode()); //use object hash for a uniqueish result
}
}
