Namespace: Autodesk.Revit.DB Class: Ceiling

Ceiling.Create(Document, IList<CurveLoop>, ElementId, ElementId)

Method

Description:
Creates a new instance of ceiling within the project.

Remarks:
To validate curve loop profile use BoundaryValidation.

Syntax

public static Ceiling Create(
	Document document,
	IList<CurveLoop> curveLoops,
	ElementId ceilingTypeId,
	ElementId levelId
)

Public Shared Function Create ( 
	document As Document,
	curveLoops As IList(Of CurveLoop),
	ceilingTypeId As ElementId,
	levelId As ElementId
) As Ceiling

public:
static Ceiling^ Create(
	Document^ document, 
	IList<CurveLoop^>^ curveLoops, 
	ElementId^ ceilingTypeId, 
	ElementId^ levelId
)

static member Create : 
        document : Document * 
        curveLoops : IList<CurveLoop> * 
        ceilingTypeId : ElementId * 
        levelId : ElementId -> Ceiling

Examples

Ceiling CreateCeilingAtElevation(Document document, Level level, double elevation)
{
   XYZ first = new XYZ(0, 0, 0);
   XYZ second = new XYZ(20, 0, 0);
   XYZ third = new XYZ(20, 15, 0);
   XYZ fourth = new XYZ(0, 15, 0);
   CurveLoop profile = new CurveLoop();
   profile.Append(Line.CreateBound(first, second));
   profile.Append(Line.CreateBound(second, third));
   profile.Append(Line.CreateBound(third, fourth));
   profile.Append(Line.CreateBound(fourth, first));

   var ceiling = Ceiling.Create(document, new List<CurveLoop> { profile }, ElementId.InvalidElementId, level.Id);
   Parameter param = ceiling.get_Parameter(BuiltInParameter.CEILING_HEIGHTABOVELEVEL_PARAM);
   param.Set(elevation);

   return ceiling;
}

Private Function CreateCeilingAtElevation(ByVal document As Document, ByVal level As Level, ByVal elevation As Double) As Ceiling
    Dim first As XYZ = New XYZ(0, 0, 0)
    Dim second As XYZ = New XYZ(20, 0, 0)
    Dim third As XYZ = New XYZ(20, 15, 0)
    Dim fourth As XYZ = New XYZ(0, 15, 0)
    Dim profile As CurveLoop = New CurveLoop()
    profile.Append(Line.CreateBound(first, second))
    profile.Append(Line.CreateBound(second, third))
    profile.Append(Line.CreateBound(third, fourth))
    profile.Append(Line.CreateBound(fourth, first))
    Dim ceiling = Autodesk.Revit.DB.Ceiling.Create(document, New List(Of CurveLoop) From {
        profile
    }, ElementId.InvalidElementId, level.Id)
    Dim param As Parameter = ceiling.Parameter(BuiltInParameter.CEILING_HEIGHTABOVELEVEL_PARAM)
    param.[Set](elevation)
    Return ceiling
End Function

Private Function IExternalCommand_Execute(commandData As ExternalCommandData, ByRef message As String, elements As ElementSet) As Result Implements IExternalCommand.Execute
    Throw New NotImplementedException()
End Function

Parameters

Parameter	Type	Description
document	Document	The document in which the new ceiling is created.
curveLoops	IList	An array of planar curve loops that represent the profile of the ceiling.
ceilingTypeId	ElementId	Id of the ceiling type to be used by the new ceiling. If InvalidElementId is passed, the default type will be used.
levelId	ElementId	Id of the level on which the ceiling is to be placed.

Return Value

Type	Description
Ceiling	If successful a new ceiling object within the project.

Exceptions

Exception	Condition
ArgumentException	The ElementId levelId is not a Level. -or- The ElementId ceilingTypeId does not correspond to a CeilingType. -or- The input curve loops cannot compose a valid boundary, that means: the "curveLoops" collection is empty; or some curve loops intersect with each other; or each curve loop is not closed individually; or each curve loop is not planar; or each curve loop is not in a plane parallel to the horizontal(XY) plane; or input curves contain at least one helical curve. -or- Input curves build invalid sketch. -or- Failed to create curve elements.
ArgumentNullException	A non-optional argument was null
InvalidOperationException	Cannot generate a sketch. -or- Failed to create new element.
ModificationForbiddenException	The document is in failure mode: an operation has failed, and Revit requires the user to either cancel the operation or fix the problem (usually by deleting certain elements). -or- The document is being loaded, or is in the midst of another sensitive process.
ModificationOutsideTransactionException	The document has no open transaction.