FamilyItemFactory.NewRevolution Method

Namespace: Autodesk.Revit.Creation
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0)

Syntax

C#

public Revolution NewRevolution(
	bool isSolid,
	CurveArrArray profile,
	SketchPlane sketchPlane,
	Line axis,
	double startAngle,
	double endAngle
)

Parameters

isSolid  Boolean

Indicates if the Revolution is Solid or Void.

profile  CurveArrArray

The profile of the newly created revolution. This may contain more than one curve loop. Each loop must be a fully closed curve loop and the loops must not intersect. All loops must lie in the same plane. The loop can be a unbound circle or ellipse, but its geometry will be split in two in order to satisfy requirements for sketches used in extrusions.

sketchPlane  SketchPlane

The sketch plane for the revolution. The direction of revolution is determined by the normal for the sketch plane.

axis  Line

The axis of revolution. This axis must lie in the same plane as the curve loops.

startAngle  Double

The start angle of Revolution in radians.

endAngle  Double

The end angle of Revolution in radians.

Return Value

Revolution
If creation was successful the new revolution is returned, otherwise an exception with failure information will be thrown.

Exceptions

Remarks

This method creates an Revolution in a family document. The Revolution will be rotated the plane of the Revolution profile about the Axis.

Example

C#

private Revolution CreateRevolution(Autodesk.Revit.DB.Document document, SketchPlane sketchPlane)
{
    Revolution revolution = null;

    // make sure we have a family document
    if (true == document.IsFamilyDocument)
    {
        // Define a profile for the revolution
        CurveArrArray curveArrArray = new CurveArrArray();
        CurveArray curveArray = new CurveArray();

        // create a rectangular profile for the revolution
        XYZ p0 = XYZ.Zero;
        XYZ p1 = new XYZ(10, 0, 0);
        XYZ p2 = new XYZ(10, 10, 0);
        XYZ p3 = new XYZ(0, 10, 0);
        Line line1 = Line.CreateBound(p0, p1);
        Line line2 = Line.CreateBound(p1, p2);
        Line line3 = Line.CreateBound(p2, p3);
        Line line4 = Line.CreateBound(p3, p0);

        XYZ pp = new XYZ(1, -1, 0);
        Line axis1 = Line.CreateBound(XYZ.Zero, pp);
        curveArray.Append(line1);
        curveArray.Append(line2);
        curveArray.Append(line3);
        curveArray.Append(line4);

        curveArrArray.Append(curveArray);

        // create solid rectangular revolution
        revolution = document.FamilyCreate.NewRevolution(true, curveArrArray, sketchPlane, axis1, -Math.PI, 0);

        if (null != revolution)
        {
            // move to proper place
            XYZ transPoint1 = new XYZ(0, 32, 0);
            ElementTransformUtils.MoveElement(document, revolution.Id, transPoint1);
        }
        else
        {
            throw new Exception("Create a new Revolution failed.");
        }
    }
    else
    {
        throw new Exception("Please open a Family document before invoking this command.");
    }

    return revolution;
}

VB

Private Function CreateRevolution(document As Autodesk.Revit.DB.Document, sketchPlane As SketchPlane) As Revolution
    Dim revolution As Revolution = Nothing

    ' make sure we have a family document
    If True = document.IsFamilyDocument Then
        ' Define a profile for the revolution
        Dim curveArrArray As New CurveArrArray()
        Dim curveArray As New CurveArray()

        ' create a rectangular profile for the revolution
        Dim p0 As XYZ = XYZ.Zero
        Dim p1 As New XYZ(10, 0, 0)
        Dim p2 As New XYZ(10, 10, 0)
        Dim p3 As New XYZ(0, 10, 0)
        Dim line1 As Line = Line.CreateBound(p0, p1)
        Dim line2 As Line = Line.CreateBound(p1, p2)
        Dim line3 As Line = Line.CreateBound(p2, p3)
        Dim line4 As Line = Line.CreateBound(p3, p0)

        Dim pp As New XYZ(1, -1, 0)
        Dim axis1 As Line = Line.CreateBound(XYZ.Zero, pp)
        curveArray.Append(line1)
        curveArray.Append(line2)
        curveArray.Append(line3)
        curveArray.Append(line4)

        curveArrArray.Append(curveArray)

        ' create solid rectangular revolution
        revolution = document.FamilyCreate.NewRevolution(True, curveArrArray, sketchPlane, axis1, -Math.PI, 0)

        If revolution IsNot Nothing Then
            ' move to proper place
            Dim transPoint1 As New XYZ(0, 32, 0)
            ElementTransformUtils.MoveElement(document, revolution.Id, transPoint1)
        Else
            Throw New Exception("Create a new Revolution failed.")
        End If
    Else
        Throw New Exception("Please open a Family document before invoking this command.")
    End If

    Return revolution
End Function

See Also

Reference