internal Point DetermineStartPoint([NotNull] IEnumerable <IPolylineSegment> segments)
{
IPolylineSegment first = segments.FirstOrDefault();
return(first == null
? Point.Unknown
: first.StartPoint);
}
internal Point DetermineEndPoint([NotNull] IEnumerable <IPolylineSegment> segments)
{
IPolylineSegment last = segments.LastOrDefault();
return(last == null
? Point.Unknown
: last.EndPoint);
}
public void AddSegment(IPolylineSegment segment)
{
m_Segments.Add(segment);
Length += segment.Length;
StartPoint = DetermineStartPoint(m_Segments);
EndPoint = DetermineEndPoint(m_Segments);
AngleToXAxisAtStartPoint = DetermineAngleToXAxisAtStartPoint(m_Segments);
AngleToXAxisAtEndPoint = DetermineAngleToXAxisAtEndPoint(m_Segments);
}
public Constants.TurnDirection TurnDirectionToPoint(Point point)
{
IPolylineSegment firstSegment = m_Segments.FirstOrDefault();
if (firstSegment == null)
{
return(Constants.TurnDirection.Unknown);
}
Constants.TurnDirection turnDirection = firstSegment.TurnDirectionToPoint(point);
return(turnDirection);
}
public void ReverseTest()
{
IPolylineSegment actual = m_Line.Reverse();
Assert.AreEqual(m_Line.Length,
actual.Length,
"Length");
Assert.AreEqual(m_Line.EndPoint,
actual.StartPoint,
"StartPoint");
Assert.AreEqual(m_Line.StartPoint,
actual.EndPoint,
"EndPoint");
}
private Angle DetermineAngleToXAxisAtStartPoint([NotNull] IEnumerable <IPolylineSegment> segments)
{
IPolylineSegment segment = segments.First();
return(segment.AngleToXAxisAtStartPoint);
}
public void Add(IPolylineSegment polylineSegment)
{
m_Polyline.AddSegment(polylineSegment);
EndPoint = polylineSegment.EndPoint;
}
