EllipticArcBuilderEx Constructor(Segment,Boolean,ArcOrientation,Double,Double,SpatialReference)

In This Topic

Creates a new instance of the EllipticArcBuilderEx class. The new instance will be a circular arc.

Syntax

C#
Visual Basic (Declaration)

public EllipticArcBuilderEx( 
   Segment tangentSegment,
   bool atStart,
   ArcOrientation orientation,
   double radius,
   double arcLength,
   SpatialReference spatialReference
)

Public Function New( _
   ByVal tangentSegment As Segment, _
   ByVal atStart As Boolean, _
   ByVal orientation As ArcOrientation, _
   ByVal radius As Double, _
   ByVal arcLength As Double, _
   Optional ByVal spatialReference As SpatialReference _
)

Parameters

tangentSegment: The segment to which the constructed arc will be tangent at its start or end point.
atStart: The boolean indicating if the arc should be constructed at the start or end of the tangent segment.
orientation: The value indicating if the arc is oriented clockwise or counterclockwise.
radius: The radius of the arc. Must not be equal to zero. If the radius is < 0, then the absolute value is used.
arcLength: The length of the arc. Must not be equal to zero. If the arcLength is < 0, then the absolute value is used.
spatialReference: (Optional) The spatial reference of the arc. The default value is null.

Exceptions

Exception	Description
System.ArgumentNullException	The tangent segment is null.
System.ArgumentException	The radius or arc length is equal to zero.

Example

Create Circle Text Element

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

//Build geometry
Coordinate2D center = new Coordinate2D(4.5, 4);
var eabCir = new EllipticArcBuilderEx(center, 0.5, ArcOrientation.ArcClockwise);
var cir = eabCir.ToSegment();

var poly = PolygonBuilderEx.CreatePolygon(
  PolylineBuilderEx.CreatePolyline(cir, AttributeFlags.AllAttributes));

//Set symbolology, create and add element to layout
CIMTextSymbol sym = SymbolFactory.Instance.ConstructTextSymbol(
                ColorFactory.Instance.GreenRGB, 10, "Arial", "Regular");
string text = "Circle, circle, circle";

GraphicElement cirTxtElm = ElementFactory.Instance.CreateTextGraphicElement(
  container, TextType.CircleParagraph, poly, sym, text, "New Circle Text", false);

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.

Reference

EllipticArcBuilderEx Class
EllipticArcBuilderEx Members
Overload List

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