ArcGIS Pro 3.3 API Reference Guide
ArcGIS.Core.Geometry Namespace / GeodesicSectorParameter Class / StartDirection Property
Example

In This Topic
    StartDirection Property
    In This Topic
    Gets or sets the direction of starting radius of the sector as an angle in degrees.
    Syntax
    public double StartDirection {get; set;}
    Public Property StartDirection As Double
    Example
    GeodesicSector
    GeodesicSectorParameter param = new GeodesicSectorParameter();
    param.ArcVertexCount = 50;
    param.AxisDirection = Math.PI / 4;
    param.Center = new Coordinate2D(0, 0);
    param.LinearUnit = LinearUnit.Meters;
    param.OutGeometryType = GeometryType.Polygon;
    param.RadiusVertexCount = 10;
    param.SectorAngle = 5 * Math.PI / 3;
    param.SemiAxis1Length = 100000;
    param.SemiAxis2Length = 20000;
    param.StartDirection = 11 * Math.PI / 6;
    
    Geometry geometry = GeometryEngine.Instance.GeodesicSector(param, SpatialReferences.WGS84);
    // geometry.IsEmpty = false
    
    Polygon polygon = geometry as Polygon;
    // polygon.PointCount = 68
    // polygon.PartCount = 1
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also