/// <summary>
/// Determines whether [is any point on segment and not ends] [the specified polyline].
/// </summary>
/// <param name="polyline">The polyline.</param>
/// <returns><c>true</c> if [is any point on segment and not ends] [the specified polyline]; otherwise, <c>false</c>.</returns>
public static bool IsJoiningPointOnAnotherSegment(PolyLine polyline)
{
CartesianCoordinate firstPoint = polyline.FirstPoint();
CartesianCoordinate lastPoint = polyline.LastPoint();
for (int i = 1; i < polyline.CountSegments - 1; i++)
{ // Loop is skipping first and last segments
if (polyline[i] is LineSegment)
{
LineSegment segment = (LineSegment)polyline[i];
if ((segment.IncludesCoordinate(firstPoint) &&
!PointIntersection.IsOnPoint(firstPoint, segment.I) &&
!PointIntersection.IsOnPoint(firstPoint, segment.J)) ||
(segment.IncludesCoordinate(lastPoint) &&
!PointIntersection.IsOnPoint(lastPoint, segment.I) &&
!PointIntersection.IsOnPoint(lastPoint, segment.J)))
{
return(true);
}
}
}
return(false);
}
[TestCase(1, -2, 1, -2, ExpectedResult = true)] // On
public static bool IsOnPoint(double x, double y, double x1, double y1)
{
CartesianCoordinate point = new CartesianCoordinate(x1, y1);
return(PointIntersection.IsOnPoint(point, new CartesianCoordinate(x, y)));
}