ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.Geometry Namespace / EllipticArcSegment Class
Members Example

In This Topic
    EllipticArcSegment Class
    In This Topic
    Represents an elliptic arc segment for use in a Multipart geometry. To create an elliptic arc segment use the EllipticArcBuilderEx object.
    Object Model
    EllipticArcSegment ClassCoordinate2D StructureCoordinate2D StructureMapPoint ClassEnvelope ClassSpatialReference ClassCoordinate2D StructureMapPoint Class
    Syntax
    public sealed class EllipticArcSegment : Segment 
    Public NotInheritable Class EllipticArcSegment 
       Inherits Segment
    Remarks
    An elliptic arc is the portion of the boundary of a 2D ellipse that connects two points.
    Example
    Create_circle
    //Create a circle graphic element using a simple line and fill styles.
    
    //Construct on the worker thread
    await QueuedTask.Run(() =>
    {
      //Build geometry
      Coordinate2D center = new Coordinate2D(2, 4);
      //At 2.x - EllipticArcBuilder eabCir = new EllipticArcBuilder(center, 0.5, esriArcOrientation.esriArcClockwise);
      var eabCir = new EllipticArcBuilderEx(center, 0.5, ArcOrientation.ArcClockwise);
      EllipticArcSegment cir = eabCir.ToSegment();
    
      //Set symbolology, 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);
      //At 2.x - GraphicElement cirElm = LayoutElementFactory.Instance.CreateCircleGraphicElement(layout, cir, circleSym);
      //         cirElm.SetName("New Circle");
    
      var polyLine = PolylineBuilderEx.CreatePolyline(cir);
      GraphicElement cirElm = ElementFactory.Instance.CreateGraphicElement(layout, polyLine, circleSym, "New Circle");
    });
    Create_ellipse
    //Create an ellipse graphic with simple line and fill styles.
    
    //Construct on the worker thread
    await QueuedTask.Run(() =>
    {
      //Build geometry
      Coordinate2D center = new Coordinate2D(2, 2.75);
      //At 2.x - EllipticArcBuilder eabElp = new EllipticArcBuilder(center, 0, 1, 0.45, esriArcOrientation.esriArcClockwise);
      var eabElp = new EllipticArcBuilderEx(center, 0, 1, 0.45, ArcOrientation.ArcClockwise);
      EllipticArcSegment ellipse = eabElp.ToSegment();
    
      //Set symbolology, create and add element to layout
      CIMStroke outline = SymbolFactory.Instance.ConstructStroke(ColorFactory.Instance.GreenRGB, 2.0, SimpleLineStyle.Dot);
      CIMPolygonSymbol ellipseSym = SymbolFactory.Instance.ConstructPolygonSymbol(ColorFactory.Instance.GreyRGB, SimpleFillStyle.Vertical, outline);
      //At 2.x - GraphicElement elpElm = LayoutElementFactory.Instance.CreateEllipseGraphicElement(layout, ellipse, ellipseSym);
      //         elpElm.SetName("New Ellipse");
    
      var polyLine = PolylineBuilderEx.CreatePolyline(ellipse);
      GraphicElement elpElm = ElementFactory.Instance.CreateGraphicElement(layout, polyLine, ellipseSym, "New Ellipse");
    });
    Inheritance Hierarchy

    System.Object
       ArcGIS.Core.Geometry.Segment
          ArcGIS.Core.Geometry.EllipticArcSegment

    Requirements

    Target Platforms: Windows 11, Windows 10, Windows 8.1

    See Also