ArcGIS Pro 3.3 API Reference Guide
ArcGIS.Desktop.Layouts Namespace / ArrowInfo Class / ArrowSizePoints Property
Example

In This Topic
    ArrowSizePoints Property
    In This Topic
    The size of the arrow head in points
    Syntax
    public double ArrowSizePoints {get; set;}
    Public Property ArrowSizePoints As Double
    Example
    Create Arrow Graphic
    //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);
    Create Line Arrow Element
    //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);
    
    var arrowInfo = new ArrowInfo()
    {
      ArrowHeadKey = ArrowInfo.DefaultArrowHeadKeys[8],
      ArrowOnBothEnds = true,
      ArrowSizePoints = 24,
      LineWidthPoints = 12
    };
    
    //Create and add element to layout
    GraphicElement lineElm = ElementFactory.Instance.CreateArrowGraphicElement(
      container, linePl, arrowInfo, "Arrow Line", true, 
                                new ElementInfo() { Rotation = 15.0 });
    //lineElm.SetName("New Line");
    
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also