private void CreateAdaptiveComponentInstance(Document document, FamilySymbol symbol)
{
    // Create a new instance of an adaptive component family
    FamilyInstance instance = AdaptiveComponentInstanceUtils.CreateAdaptiveComponentInstance(document, symbol);

    // Get the placement points of this instance
    IList<ElementId> placePointIds = new List<ElementId>();
    placePointIds = AdaptiveComponentInstanceUtils.GetInstancePlacementPointElementRefIds(instance);
    double x = 0;

    // Set the position of each placement point
    foreach (ElementId id in placePointIds)
    {
        ReferencePoint point = document.GetElement(id) as ReferencePoint;
        point.Position = new Autodesk.Revit.DB.XYZ(10*x, 10*Math.Cos(x), 0);
        x += Math.PI/6;
    }
}

Private Sub CreateAdaptiveComponentInstance(document As Document, symbol As FamilySymbol)
    ' Create a new instance of an adaptive component family
    Dim instance As FamilyInstance = AdaptiveComponentInstanceUtils.CreateAdaptiveComponentInstance(document, symbol)

    ' Get the placement points of this instance
    Dim placePointIds As IList(Of ElementId) = New List(Of ElementId)()
    placePointIds = AdaptiveComponentInstanceUtils.GetInstancePlacementPointElementRefIds(instance)
    Dim x As Double = 0

    ' Set the position of each placement point
    For Each id As ElementId In placePointIds
        Dim point As ReferencePoint = TryCast(document.GetElement(id), ReferencePoint)
        point.Position = New Autodesk.Revit.DB.XYZ(10 * x, 10 * Math.Cos(x), 0)
        x += Math.PI / 6
    Next
End Sub