Creates a new instance of floor within the project.
Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since: 2022
Syntax
C# |
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public static Floor Create( Document document, IList<CurveLoop> profile, ElementId floorTypeId, ElementId levelId, bool isStructural, Line slopeArrow, double slope ) |
Visual Basic |
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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++ |
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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

/// The example below shows how to use Floor.Create method to create a new slopped floor on one level /// using a geometry profile and a floor type. /// In this sample, the geometry profile is a CurveLoop of lines, you can also use arcs, ellipses and splines. Floor CreateSlopedFloor(Document document, Level level) { // Get a floor type for floor creation ElementId floorTypeId = Floor.GetDefaultFloorType(document, false); // 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, 20, 0); XYZ fourth = new XYZ(0, 20, 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)); Line slopeArrow = Line.CreateBound(new XYZ(10, 10, 0), new XYZ(11, 10, 0)); return Floor.Create(document, new List<CurveLoop> { profile }, floorTypeId, level.Id, true, slopeArrow, Math.PI / 2); }

Private Function CreateSlopedFloor(ByVal document As Document, ByVal level As Level) As Floor Dim floorTypeId As ElementId = Floor.GetDefaultFloorType(document, False) 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, 20, 0) Dim fourth As XYZ = New XYZ(0, 20, 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 slopeArrow As Line = Line.CreateBound(New XYZ(10, 10, 0), New XYZ(11, 10, 0)) Return Floor.Create(document, New List(Of CurveLoop) From { profile }, floorTypeId, level.Id, True, slopeArrow, Math.PI / 2) End Function
Exceptions
Exception | Condition |
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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. |