ArcObjects Library Reference (Geometry)  

IConstructCircularArc.ConstructBearingAngleArc Method

Constructs an arc with the given chord bearing, central angle and arc distance.

[Visual Basic .NET]
Public Sub ConstructBearingAngleArc ( _
    ByVal from As IPoint, _
    ByVal inAngle As Double, _
    ByVal isCCW As Boolean, _
    ByVal CentralAngle As Double, _
    ByVal arcDistance As Double _
)
[C#]
public void ConstructBearingAngleArc (
    IPoint from,
    double inAngle,
    bool isCCW,
    double CentralAngle,
    double arcDistance
);
[C++]
HRESULT ConstructBearingAngleArc(
  IPoint* from,
  double inAngle,
  VARIANT_BOOL isCCW,
  double CentralAngle,
  double arcDistance
);
[C++]

Parameters

from

  from is a parameter of type IPoint

inAngle   inAngle is a parameter of type double isCCW   isCCW is a parameter of type VARIANT_BOOL CentralAngle   CentralAngle is a parameter of type double arcDistance   arcDistance is a parameter of type double

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Description

Constructs a CircularArc given the From Point, the Bearing Angle, the desired orientation, the desired Central Angle, and the desired CircularArc Length.  The Bearing Angle and Central Angle are measured in radians.

Remarks

-isCCW stands for "is counter clockwise"

ConstructCircularArc Bearing Angle Example

[C#]
private void ConstructBearingAngleArc()
{
  IConstructCircularArc constructCircularArc = new CircularArcClass();
  ICircularArc circularArc = constructCircularArc as ICircularArc;
  
  IPoint fromPoint = new PointClass();
  fromPoint.PutCoords(100, 100);
 
  //The angles should be in Radians (Radians = Degrees * PI/180)
  constructCircularArc.ConstructBearingAngleArc(fromPoint, 0, true, (90 * (Math.PI / 180)), 150);
   
  String report = "Length : " + circularArc.Length + "\n" +
                  "Radius : " + circularArc.Radius + "\n" +
                  "Chord Height : " + circularArc.ChordHeight + "\n" +
                  "Central Angle (Rad) : " + circularArc.CentralAngle + "\n" +
                  "From Angle (Rad) : " + circularArc.FromAngle + "\n" +
                  "To Angle (Rad) : " + circularArc.ToAngle + "\n" +
                  "Center Point : " + circularArc.CenterPoint.X + " , " + circularArc.CenterPoint.Y + "\n" +
                  "From Point : " + circularArc.FromPoint.X + " , " + circularArc.FromPoint.Y + "\n" +
                  "To Point : " + circularArc.ToPoint.X + " , " + circularArc.ToPoint.Y;
  System.Windows.Forms.MessageBox.Show(report);
}
[Visual Basic .NET]

Private Sub ConstructBearingAngleArc()
  Dim pConstructCircularArc As ESRI.ArcGIS.Geometry.IConstructCircularArc
  Dim pCArc As ESRI.ArcGIS.Geometry.ICircularArc
  Dim pFromPoint As ESRI.ArcGIS.Geometry.IPoint
  Dim Pi As Double
  
  pConstructCircularArc = New ESRI.ArcGIS.Geometry.CircularArc
  pCArc = pConstructCircularArc
  Pi = 4 * Math.Atan(1) 'Calculate the value of pi.
  pFromPoint = New ESRI.ArcGIS.Geometry.Point
  pFromPoint.PutCoords(100, 100)
  'The angles should be in Radians (Radians = Degrees * PI/180)
  pConstructCircularArc.ConstructBearingAngleArc(pFromPoint, 0, True, (90 * (Pi / 180)), 150)
 
  Debug.Print("Length : " & pCArc.Length)
  Debug.Print("Radius : " & pCArc.Radius)
  Debug.Print("Chord Height : " & pCArc.ChordHeight)
  Debug.Print("Central Angle (Rad) : " & pCArc.CentralAngle)
  Debug.Print("From Angle (Rad) : " & pCArc.FromAngle)
  Debug.Print("To Angle (Rad) : " & pCArc.ToAngle)
  Debug.Print("Center Point : " & pCArc.CenterPoint.X & " , " & pCArc.CenterPoint.Y)
  Debug.Print("From Point : " & pCArc.FromPoint.X & " , " & pCArc.FromPoint.Y)
  Debug.Print("To Point : " & pCArc.ToPoint.X & " , " & pCArc.ToPoint.Y)
End Sub

See Also

IConstructCircularArc Interface | IConstructCircularArc.ConstructBearingArcTangent Method | IConstructCircularArc.ConstructBearingAngleArc Method | IConstructCircularArc.ConstructBearingChordArc Method | IConstructCircularArc.ConstructBearingAngleTangent Method | IConstructCircularArc.ConstructBearingChordTangent Method | IConstructCircularArc.ConstructBearingRadiusArc Method | IConstructCircularArc.ConstructBearingRadiusAngle Method | IConstructCircularArc.ConstructBearingRadiusChord Method | IConstructCircularArc.ConstructBearingAngleChord Method | IConstructCircularArc.ConstructBearingRadiusTangent Method | IConstructAngle.ConstructThreePoint Method | IConstructAngle.ConstructLine Method