GraphicsStreamElementXform() { if (m_revitApp.ActiveUIDocument.Selection.GetElementIds().Count == 0) { MessageBox.Show("Please select elements and re-run test.", "No Elements Selected", MessageBoxButtons.OK, MessageBoxIcon.Information); return; } GraphicsStreamRevit grStream = new GraphicsStreamRevit(m_revitApp); grStream.PushView(m_revitApp.ActiveUIDocument.Document.ActiveView); Options opts = m_revitApp.Application.Create.NewGeometryOptions(); opts.ComputeReferences = true; opts.View = m_revitApp.ActiveUIDocument.Document.ActiveView; grStream.PushGeometryOptions(opts); // transform everything by 50 in both the X and Y axes Transform xform = new Transform(Transform.Identity); xform.Origin = new XYZ(50.0, 50.0, 0.0); grStream.PushXform(xform); var selElementIds = m_revitApp.ActiveUIDocument.Selection.GetElementIds(); Document dbDoc = m_revitApp.ActiveUIDocument.Document; foreach (ElementId elemId in selElementIds) { grStream.Stream(dbDoc.GetElement(elemId)); } }