Creates a new instance of floor within the project.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since: 2022
Syntax
C# |
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Visual Basic |
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Visual C++ |
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Parameters
- document
- Type: Autodesk.Revit.DBDocument
The document in which the new floor is created.
- profile
- Type: System.Collections.GenericIListCurveLoop
An array of planar curve loops that represent the profile of the floor.
- floorTypeId
- Type: Autodesk.Revit.DBElementId
Id of the floor type to be used by the new Floor.
- levelId
- Type: Autodesk.Revit.DBElementId
Id of the level on which the floor is to be placed.
- isStructural
- Type: SystemBoolean
True if new floor should be structural, false if architectural.
- slopeArrow
- Type: Autodesk.Revit.DBLine
A line used to control the slope angle of the Floor. It must be horizontal. If slopeArrow is a null reference (Nothing in Visual Basic), the horizontal floor will be created.
- slope
- Type: SystemDouble
The slope angle. If slopeArrow is a 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.ExceptionsArgumentException | 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.ExceptionsArgumentNullException | A non-optional argument was null |
Autodesk.Revit.ExceptionsInvalidOperationException | Cannot generate a sketch. -or- Failed to create new element. |
Autodesk.Revit.ExceptionsModificationForbiddenException | 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.ExceptionsModificationOutsideTransactionException | The document has no open transaction. |