Create Method (Document, IList(CurveLoop), ElementId, ElementId, Boolean, Line, Double)
Creates a new instance of floor within the project.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 22.0.0.0 (22.1.0.0)
Since:  2022

Syntax

C#
public static Floor Create(
	Document document,
	IList<CurveLoop> profile,
	ElementId floorTypeId,
	ElementId levelId,
	bool isStructural,
	Line slopeArrow,
	double slope
)
Visual Basic
Public Shared Function Create ( _
	document As Document, _
	profile As IList(Of CurveLoop), _
	floorTypeId As ElementId, _
	levelId As ElementId, _
	isStructural As Boolean, _
	slopeArrow As Line, _
	slope As Double _
) As Floor
Visual C++
public:
static Floor^ Create(
	Document^ document, 
	IList<CurveLoop^>^ profile, 
	ElementId^ floorTypeId, 
	ElementId^ levelId, 
	bool isStructural, 
	Line^ slopeArrow, 
	double slope
)

Parameters

document
Type: Autodesk.Revit.DB..::..Document
The document in which the new floor is created.
profile
Type: System.Collections.Generic..::..IList<(Of <(<'CurveLoop>)>)>
An array of planar curve loops that represent the profile of the floor.
floorTypeId
Type: Autodesk.Revit.DB..::..ElementId
Id of the floor type to be used by the new Floor.
levelId
Type: Autodesk.Revit.DB..::..ElementId
Id of the level on which the floor is to be placed.
isStructural
Type: System..::..Boolean
True if new floor should be structural, false if architectural.
slopeArrow
Type: Autodesk.Revit.DB..::..Line
A line used to control the slope angle of the Floor. It must be horizontal. If slopeArrow is nullNothingnullptra null reference (Nothing in Visual Basic), the horizontal floor will be created.
slope
Type: System..::..Double
The slope angle. If slopeArrow is nullNothingnullptra null reference (Nothing in Visual Basic), this parameter will be ignored.

Return Value

If successful a new floor object within the project.

Remarks

To validate curve loop profile use BoundaryValidation. To get default floor type use GetDefaultFloorType(Document, Boolean).

Examples

CopyC#
Floor CreateFloor(UIApplication application, Level level)
{
      // Get the Revit document
      Autodesk.Revit.DB.Document document = application.ActiveUIDocument.Document;

      // Get a floor type for floor creation
      FilteredElementCollector collector = new FilteredElementCollector(document);
      collector.OfClass(typeof(FloorType));
      FloorType floorType = collector.FirstElement() as FloorType;

      // Build a floor profile for the floor creation
      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));

      return Floor.Create(document, new List<CurveLoop> { profile }, floorType.Id, level.Id, true, null, 0.0);
}
CopyC#
Floor CreateFloor(UIApplication application, Level level)
{
      // Get the Revit document
      Autodesk.Revit.DB.Document document = application.ActiveUIDocument.Document;

      // Get a floor type for floor creation
      FilteredElementCollector collector = new FilteredElementCollector(document);
      collector.OfClass(typeof(FloorType));
      FloorType floorType = collector.FirstElement() as FloorType;

      // Build a floor profile for the floor creation
      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));

      return Floor.Create(document, new List<CurveLoop> { profile }, floorType.Id, level.Id, true, null, 0.0);
}
CopyVB.NET
Private Function CreateFloor(application As UIApplication, level As Level) As Floor
    ' Get the Revit document
    Dim document As Autodesk.Revit.DB.Document = application.ActiveUIDocument.Document

    ' Get the application creation object
    Dim appCreation As Autodesk.Revit.Creation.Application = application.Application.Create

    ' Get a floor type for floor creation
    Dim collector As New FilteredElementCollector(document)
    collector.OfClass(GetType(FloorType))
    Dim floorType As FloorType = TryCast(collector.FirstElement(), FloorType)

    ' Build a floor profile for the floor creation
    Dim first As New XYZ(0, 0, 0)
    Dim second As New XYZ(20, 0, 0)
    Dim third As New XYZ(20, 15, 0)
    Dim fourth As New XYZ(0, 15, 0)
    Dim profile As 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))

    Return Floor.Create(document, New List(Of CurveLoop)({profile}), floorType.Id, level.Id, True, Nothing, 0.0)
End Function

Exceptions

ExceptionCondition
Autodesk.Revit.Exceptions..::..ArgumentException The ElementId levelId is not a Level. -or- The floorTypeId does not correspond to a FloorType. -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- The slopeArrow must be a horizontal line. -or- Input curves build invalid sketch. -or- Failed to create curve elements.
Autodesk.Revit.Exceptions..::..ArgumentNullException A non-optional argument was null
Autodesk.Revit.Exceptions..::..InvalidOperationException Cannot generate a sketch. -or- Failed to create new element.
Autodesk.Revit.Exceptions..::..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.
Autodesk.Revit.Exceptions..::..ModificationOutsideTransactionException The document has no open transaction.

See Also

M:Autodesk.Revit.DB.Floor.Create(Autodesk.Revit.DB.Document,System.Collections.Generic.IList{Autodesk.Revit.DB.CurveLoop},Autodesk.Revit.DB.ElementId,Autodesk.Revit.DB.ElementId,System.Boolean,Autodesk.Revit.DB.Line,System.Double)