/// <summary>
/// Tests whether a point lies on the line defined by a list of
/// coordinates.
/// </summary>
/// <param name="p">The point to test</param>
/// <param name="line">The line coordinates</param>
/// <returns>
/// <c>true</c> if the point is a vertex of the line or lies in the interior
/// of a line segment in the line
/// </returns>
public static bool IsOnLine(Coordinate p, Coordinate[] line)
{
var lineIntersector = new RobustLineIntersector();
for (int i = 1; i < line.Length; i++)
{
var p0 = line[i - 1];
var p1 = line[i];
lineIntersector.ComputeIntersection(p, p0, p1);
if (lineIntersector.HasIntersection)
{
return(true);
}
}
return(false);
}
/// <summary>
/// Tests whether a point lies on the line defined by a list of
/// coordinates.
/// </summary>
/// <param name="p">The point to test</param>
/// <param name="line">The line coordinates</param>
/// <returns>
/// <c>true</c> if the point is a vertex of the line or lies in the interior
/// of a line segment in the line
/// </returns>
public static bool IsOnLine(Coordinate p, CoordinateSequence line)
{
var lineIntersector = new RobustLineIntersector();
var p0 = line.CreateCoordinate();
var p1 = p0.Copy();
int n = line.Count;
for (int i = 1; i < n; i++)
{
line.GetCoordinate(i - 1, p0);
line.GetCoordinate(i, p1);
lineIntersector.ComputeIntersection(p, p0, p1);
if (lineIntersector.HasIntersection)
{
return(true);
}
}
return(false);
}
