public CIMGraphic CreateSimpleGraphic( 
   Geometry geometry,
   CIMSymbol symbol
)

//Must be on QueuedTask.Run(() => { ...

//Build geometry
Coordinate2D center = new Coordinate2D(2, 4);
EllipticArcSegment circle_seg = EllipticArcBuilderEx.CreateCircle(
  new Coordinate2D(2, 4), 0.5, ArcOrientation.ArcClockwise, null);
var circle_poly = PolygonBuilderEx.CreatePolygon(PolylineBuilderEx.CreatePolyline(circle_seg));

//PolylineBuilderEx.CreatePolyline(cir, AttributeFlags.AllAttributes));
//Set symbology, create and add element to layout
CIMStroke outline = SymbolFactory.Instance.ConstructStroke(
  ColorFactory.Instance.BlackRGB, 2.0, SimpleLineStyle.Dash);

CIMPolygonSymbol circleSym = SymbolFactory.Instance.ConstructPolygonSymbol(
  ColorFactory.Instance.RedRGB, SimpleFillStyle.Solid, outline);
SymbolFactory.Instance.ConstructPolygonSymbol(null,
  SymbolFactory.Instance.ConstructStroke(ColorFactory.Instance.RedRGB, 2));

var circleGraphic = GraphicFactory.Instance.CreateSimpleGraphic(circle_poly, circleSym);

//Make an element to add to GraphicsLayer or Layout
//var elemInfo = new ElementInfo() { Anchor = Anchor.CenterPoint };
//GraphicElement cirElm = ElementFactory.Instance.CreateGraphicElement(
//  container, circleGraphic, "New Circle", true, elemInfo);

//Must be on QueuedTask.Run(() => { ...

//Build geometry
List<Coordinate2D> plCoords = new List<Coordinate2D>();
plCoords.Add(new Coordinate2D(1, 8.5));
plCoords.Add(new Coordinate2D(1.66, 9));
plCoords.Add(new Coordinate2D(2.33, 8.1));
plCoords.Add(new Coordinate2D(3, 8.5));
Polyline linePl = PolylineBuilderEx.CreatePolyline(plCoords);

//Set up the arrow info
var arrowInfo = new ArrowInfo()
{
  ArrowHeadKey = ArrowInfo.DefaultArrowHeadKeys[1],
  ArrowOnBothEnds = true,
  ArrowSizePoints = 30,
  LineWidthPoints = 15
};

var graphic = GraphicFactory.Instance.CreateArrowGraphic(linePl, arrowInfo);

//Make an element to add to GraphicsLayer or Layout
//var ge = ElementFactory.Instance.CreateGraphicElement(
//  container, graphic, "Arrow Line", false);

//Must be on QueuedTask.Run(() => { ...

//Build geometry
Coordinate2D coord2D = new Coordinate2D(2.0, 10.0);

//Reference a point symbol in a style
StyleProjectItem stylePrjItm = Project.Current.GetItems<StyleProjectItem>()
         .FirstOrDefault(item => item.Name == "ArcGIS 2D");
SymbolStyleItem symStyleItm = stylePrjItm.SearchSymbols(
                      StyleItemType.PointSymbol, "City Hall")[0];
CIMPointSymbol pointSym = symStyleItm.Symbol as CIMPointSymbol;
pointSym.SetSize(50);

var elemInfo = new ElementInfo()
{
  CustomProperties = new List<CIMStringMap>() {
     new CIMStringMap() { Key = "Key1", Value = "Value1"},
     new CIMStringMap() { Key = "Key2", Value = "Value2"}
   },
  Anchor = Anchor.TopRightCorner,
  Rotation = 45.0
};

var graphic = GraphicFactory.Instance.CreateSimpleGraphic(
                              coord2D.ToMapPoint(), pointSym);

ElementFactory.Instance.CreateGraphicElement(
  container, graphic, "New Point", true, elemInfo);

//Must be on QueuedTask.Run(() => { ...

//Build geometry
Coordinate2D ll = new Coordinate2D(1.0, 4.75);
Coordinate2D ur = new Coordinate2D(3.0, 5.75);
Envelope env = EnvelopeBuilderEx.CreateEnvelope(ll, ur);

//Set symbology, create and add element to layout
CIMStroke outline = SymbolFactory.Instance.ConstructStroke(
  ColorFactory.Instance.BlackRGB, 5.0, SimpleLineStyle.Solid);
CIMPolygonSymbol polySym = SymbolFactory.Instance.ConstructPolygonSymbol(
  ColorFactory.Instance.GreenRGB, SimpleFillStyle.DiagonalCross, outline);

var ge = GraphicFactory.Instance.CreateSimpleGraphic(env, polySym);
var elemInfo = new ElementInfo()
{
  Anchor = Anchor.CenterPoint,
  Rotation = 45.0,
  CornerRounding = 5.0
};

ElementFactory.Instance.CreateGraphicElement(
  container, env, polySym, "New Rectangle", false, elemInfo);

//Must be on QueuedTask.Run(() => { ...

//Build geometry
List<Coordinate2D> plyCoords = new List<Coordinate2D>();
plyCoords.Add(new Coordinate2D(1, 7));
plyCoords.Add(new Coordinate2D(2, 7));
plyCoords.Add(new Coordinate2D(2, 6.7));
plyCoords.Add(new Coordinate2D(3, 6.7));
plyCoords.Add(new Coordinate2D(3, 6.1));
plyCoords.Add(new Coordinate2D(1, 6.1));
Polygon poly = PolygonBuilderEx.CreatePolygon(plyCoords);

//Build geometry
Coordinate2D ll = new Coordinate2D(1.0, 4.75);
Coordinate2D ur = new Coordinate2D(3.0, 5.75);
Envelope env = EnvelopeBuilderEx.CreateEnvelope(ll, ur);

//Build geometry
Coordinate2D coord2D = new Coordinate2D(2.0, 10.0);

var g1 = GraphicFactory.Instance.CreateSimpleGraphic(poly);
var g2 = GraphicFactory.Instance.CreateSimpleGraphic(env);
var g3 = GraphicFactory.Instance.CreateSimpleGraphic(coord2D.ToMapPoint());

var ge = ElementFactory.Instance.CreateGraphicElements(
  container, new List<CIMGraphic>() { g1, g2, g3 },
  new List<string>() { "Poly", "Envelope", "MapPoint" },
  true);

//on the QueuedTask
//Place symbol on the layout
//At 2.x - MapPoint location = MapPointBuilder.CreateMapPoint(
//                                               new Coordinate2D(9, 1));
MapPoint location = MapPointBuilderEx.CreateMapPoint(new Coordinate2D(9, 1));

//specify a symbol
var pt_symbol = SymbolFactory.Instance.ConstructPointSymbol(
                      ColorFactory.Instance.GreenRGB);

//create a CIMGraphic 
var graphic = new CIMPointGraphic()
{
  Symbol = pt_symbol.MakeSymbolReference(),
  Location = location //center of map
};
//Or use GraphicFactory
var graphic2 = GraphicFactory.Instance.CreateSimpleGraphic(location, pt_symbol);

//At 2.x - LayoutElementFactory.Instance.CreateGraphicElement(layout, graphic);
ElementFactory.Instance.CreateGraphicElement(container, graphic);
ElementFactory.Instance.CreateGraphicElement(container, graphic2);

//Must be on QueuedTask.Run(() => { ...

//List of Point graphics
var listGraphics = new List<CIMPointGraphic>();
var listGraphics2 = new List<CIMPointGraphic>();
//Symbol
var pointSymbol = SymbolFactory.Instance.ConstructPointSymbol(
                                    ColorFactory.Instance.BlackRGB);
//Define size of the array
int dx = 5;
int dy = 5;
MapPoint point = null;
//Create the List of graphics for the array
for (int row = 0; row <= dx; ++row)
{
  for (int col = 0; col <= dy; ++col)
  {
    //At 2.x - point = MapPointBuilder.CreateMapPoint(col, row);
    point = MapPointBuilderEx.CreateMapPoint(col, row);
    //create a CIMGraphic 
    var graphic = new CIMPointGraphic()
    {
      Symbol = pointSymbol.MakeSymbolReference(),
      Location = point
    };
    listGraphics.Add(graphic);
    //Or use GraphicFactory
    var graphic2 = GraphicFactory.Instance.CreateSimpleGraphic(
                                  point, pointSymbol) as CIMPointGraphic;
    listGraphics2.Add(graphic2);
  }
}
//Draw the array of graphics
//At 2.x - var bulkgraphics =
//              LayoutElementFactory.Instance.CreateGraphicElements(
//                                              layout, listGraphics, null);

var bulkgraphics = ElementFactory.Instance.CreateGraphicElements(
                                                   container, listGraphics);
var bulkgraphics2 = ElementFactory.Instance.CreateGraphicElements(
                                                   container, listGraphics2);

internal class GetMapCoordinates : MapTool
{
  protected override void OnToolMouseDown(MapViewMouseButtonEventArgs e)
  {
    if (e.ChangedButton == System.Windows.Input.MouseButton.Left)
      e.Handled = true; //Handle the event args to get the call to the corresponding async method
  }

  protected override Task HandleMouseDownAsync(MapViewMouseButtonEventArgs e)
  {
    return QueuedTask.Run(() =>
    {
      var pointSymbol = SymbolFactory.Instance.ConstructPointSymbol(ColorFactory.Instance.BlackRGB, 8);
      var layout = Project.Current.GetItems<LayoutProjectItem>().FirstOrDefault().GetLayout();
      
      //Convert the clicked point in client coordinates to the corresponding map coordinates.
      var mapPoint = MapView.Active.ClientToMap(e.ClientPoint);
      ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show(string.Format("X: {0} Y: {1} Z: {2}",
          mapPoint.X, mapPoint.Y, mapPoint.Z), "Map Coordinates");
      //Get the corresponding layout point
      var mapFrame = layout.FindElement("New Map Frame") as MapFrame;
      var pointOnLayoutFrame = mapFrame.MapToPage(mapPoint);

      //Create a point graphic on the Layout.
      var cimGraphicElement = new CIMPointGraphic
      {
        Location = pointOnLayoutFrame,
        Symbol = pointSymbol.MakeSymbolReference()
      };
      //Or use GraphicFactory
      var cimGraphicElement2 = GraphicFactory.Instance.CreateSimpleGraphic(
              pointOnLayoutFrame, pointSymbol);

      //At 2.x - LayoutElementFactory.Instance.CreateGraphicElement(layout, cimGraphicElement);

      ElementFactory.Instance.CreateGraphicElement(layout, cimGraphicElement);
      ElementFactory.Instance.CreateGraphicElement(layout, cimGraphicElement2);

    });
    
  }
}