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Constructs an arc with a common tangent to the input segment, a given radius and a chord length.
[Visual Basic .NET] Public Sub ConstructTangentRadiusChord ( _ ByVal Segment As ISegment, _ ByVal atStart As Boolean, _ ByVal isCCW As Boolean, _ ByVal inRadius As Double, _ ByVal chordDistance As Double _ )
[C#] public void ConstructTangentRadiusChord ( ISegment Segment, bool atStart, bool isCCW, double inRadius, double chordDistance );
[C++]
HRESULT ConstructTangentRadiusChord(
ISegment* Segment,
VARIANT_BOOL atStart,
VARIANT_BOOL isCCW,
double inRadius,
double chordDistance
);
[C++] Parameters Segment
Segment is a parameter of type ISegment* atStart
atStart is a parameter of type bool isCCW
isCCW is a parameter of type bool inRadius
inRadius is a parameter of type double chordDistance
chordDistance is a parameter of type double
Constructs a CircularArc given the Tangent Segment, the desired segment endpoint (the From Point), the desired orientation, the desired Radius, and the desired Chord Length. If the Chord Distance is greater than 2 * Radius, a half CircularArc is returned. Only IsMinor CircularArcs can be created.
-isCCW stands for "is counter clockwise"
Note : To construct a major CircularArc using the same paramaters use the IConstructCircularcArc2::ConstructTangentRadiusChordEx method with the IsMinor parameter equal to false.
private void onstructTangentRadiusChord() { IConstructCircularArc constructCircularArc = new CircularArcClass(); ICircularArc circularArc = constructCircularArc as ICircularArc; IPoint fromPoint = new PointClass(); IPoint toPoint = new PointClass(); fromPoint.PutCoords(100, 100); toPoint.PutCoords(50, 400); ILine line = new LineClass(); line.PutCoords(fromPoint, toPoint); constructCircularArc.ConstructTangentRadiusChord(line as ISegment, false, true, 50, 100); 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); }
Private Sub ConstructTangentRadiusChord()
Dim pConstructCircularArc As ESRI.ArcGIS.Geometry.IConstructCircularArc
Dim pCArc As ESRI.ArcGIS.Geometry.ICircularArc
Dim Pi As Double
Dim pToPoint As ESRI.ArcGIS.Geometry.IPoint
Dim pFromPoint As ESRI.ArcGIS.Geometry.IPoint
Dim pLine1 As ESRI.ArcGIS.Geometry.ILine
pConstructCircularArc = New ESRI.ArcGIS.Geometry.CircularArc
pCArc = pConstructCircularArc
Pi = 4 * Math.Atan(1) 'Calculate the value of pi.
pFromPoint = New ESRI.ArcGIS.Geometry.Point
pToPoint = New ESRI.ArcGIS.Geometry.Point
pLine1 = New ESRI.ArcGIS.Geometry.Line
pFromPoint.PutCoords(100, 100)
pToPoint.PutCoords(100, 400)
pLine1.PutCoords(pFromPoint, pToPoint)
pConstructCircularArc.ConstructTangentRadiusChord(pLine1, False, True, 50, 100)
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
IConstructCircularArc Interface | IConstructCircularArc.ConstructTangentAngleTangent Method | IConstructCircularArc.ConstructTangentAngleChord Method | IConstructCircularArc.ConstructTangentArcTangent Method | IConstructCircularArc.ConstructTangentAngleArc Method | IConstructCircularArc.ConstructTangentChordTangent Method | IConstructCircularArc.ConstructTangentRadiusAngle Method | IConstructCircularArc.ConstructTangentRadiusArc Method | IConstructCircularArc.ConstructTangentAndPoint Method | IConstructCircularArc.ConstructTangentRadiusChord Method | IConstructCircularArc.ConstructTangentRadiusTangent Method | IConstructCircularArc.ConstructTangentChordArc Method