Creates a mirrored copy of an element about a given plane.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since: 2012

Syntax

C#
`public static void MirrorElement( Document document, ElementId elementToMirror, Plane plane )`

Visual Basic
`Public Shared Sub MirrorElement ( _ document As Document, _ elementToMirror As ElementId, _ plane As Plane _ )`

Visual C++
`public: static void MirrorElement( Document^ document, ElementId^ elementToMirror, Plane^ plane )`

Parameters

document: Type: Autodesk.Revit.DBDocument
The document that owns the element.

elementToMirror: Type: Autodesk.Revit.DBElementId
The element to mirror.

plane: Type: Autodesk.Revit.DBPlane
The mirror plane.

Examples

CopyC#

public void MirrorWall(Autodesk.Revit.DB.Document document, Wall wall)
{
    Reference reference = HostObjectUtils.GetSideFaces(wall, ShellLayerType.Exterior).First();
    Face face = wall.GetGeometryObjectFromReference(reference) as Face; // get one of the wall's major side faces

    UV bboxMin = face.GetBoundingBox().Min;
    Plane plane = Plane.CreateByNormalAndOrigin(face.ComputeNormal(bboxMin), face.Evaluate(bboxMin).Add(new XYZ(10, 10, 0)));
    // create a plane based on this side face with an offset of 10 in the X & Y directions

    ElementTransformUtils.MirrorElement(document, wall.Id, plane);
}

CopyVB.NET

Public Sub MirrorWall(document As Autodesk.Revit.DB.Document, wall As Wall)
    Dim reference As Reference = HostObjectUtils.GetSideFaces(wall, ShellLayerType.Exterior).First()
    Dim face As Face = TryCast(wall.GetGeometryObjectFromReference(reference), Face)
    ' get one of the wall's major side faces
    Dim bboxMin As UV = face.GetBoundingBox().Min
 Dim plane As Plane = Autodesk.Revit.DB.Plane.CreateByNormalAndOrigin(face.ComputeNormal(bboxMin), face.Evaluate(bboxMin).Add(New XYZ(10, 10, 0)))
    ' create a plane based on this side face with an offset of 10 in the X & Y directions


    ElementTransformUtils.MirrorElement(document, wall.Id, plane)
End Sub

Exceptions

Exception	Condition
Autodesk.Revit.ExceptionsArgumentException	elementToMirror cannot be mirrored. -or- The element elementToMirror does not exist in the document -or- The input element is a Sketch member and there is no Sketch in the edit mode to place this element in.
Autodesk.Revit.ExceptionsArgumentNullException	A non-optional argument was null

MirrorElement Method

Syntax

Parameters

Examples

Exceptions

See Also

Put AI to work inside Revit.