internal static double DistanceToLineSegment(this Point point, IList polyline, double delta)
{
double num1 = double.NaN;
for (int index = 0; index < polyline.Count - 1; ++index)
{
Point point1 = (Point)polyline[index];
Point point2 = (Point)polyline[index + 1];
double num2 = PointExtensions.DistanceToLine(point, point1, point2);
bool flag = Math.Abs(point1.X - point2.X) < 1E-06 ? PointExtensions.IsYBetween(point, point1, point2) : PointExtensions.IsXBetween(point, point1, point2);
if (num2 < delta && flag || RectExtensions.AroundPoint(point1, point, delta))
{
num1 = num2;
break;
}
}
return(num1);
}
internal static double DistanceToPolyline(this Point point, IList polyline, ref int closestSegmentToPoint)
{
double num1 = double.MaxValue;
closestSegmentToPoint = 0;
for (int index = 0; index < polyline.Count - 1; ++index)
{
Point a = (Point)polyline[index];
Point b = (Point)polyline[index + 1];
double num2 = PointExtensions.DistanceToLine(point, a, b);
if (num2 < num1)
{
num1 = num2;
closestSegmentToPoint = index;
}
}
return(num1);
}
internal static double DistanceToSegmentSquared(this Point p, Point a, Point b)
{
if (a == b)
{
return(Utils.DistanceSquared(p, a));
}
double num1 = b.X - a.X;
double num2 = b.Y - a.Y;
if ((p.X - a.X) * num1 + (p.Y - a.Y) * num2 < 0.0)
{
return(Utils.DistanceSquared(a, p));
}
if ((b.X - p.X) * num1 + (b.Y - p.Y) * num2 < 0.0)
{
return(Utils.DistanceSquared(b, p));
}
else
{
return(PointExtensions.DistanceToLineSquared(p, a, b));
}
}
internal static double DistanceToLine(this Point p, Point a, Point b)
{
return(PointExtensions.Distance(p, Utils.ProjectPointOnLine(p, a, b)));
}
internal static double DistanceToPolyline(this Point point, IList polyline)
{
int closestSegmentToPoint = 0;
return(PointExtensions.DistanceToPolyline(point, polyline, ref closestSegmentToPoint));
}
/// <summary>
/// Returns the distance of the point to the origin.
///
/// </summary>
/// <param name="point">The point.</param>
/// <returns/>
public static double Distance(this Point point)
{
return(PointExtensions.Distance(point, new Point(0.0, 0.0)));
}
/// <summary>
/// Distances to rectangle.
/// </summary>
/// <param name="point">The point.</param><param name="rect">The rectangle.</param>
public static double Distance(this Point point, Rect rect)
{
Point endPoint = PointExtensions.DistancePoint(point, rect);
return(PointExtensions.Distance(point, endPoint));
}
/// <summary>
/// Distance to rectangle.
/// </summary>
/// <param name="point">The point.</param><param name="rect">The rectangle.</param>
public static Point DistancePoint(this Point point, Rect rect)
{
return(new Point(PointExtensions.DistanceSelect(point.X, rect.Left, rect.Right), PointExtensions.DistanceSelect(point.Y, rect.Top, rect.Bottom)));
}
