public bool TryGetDistanceFromEnd(GeoPoint point, out Double distance)
{
bool success = false;
distance = 0;
GeoLineList list = new GeoLineList(this);
list.Reverse();
for (int index = 0; index < list.Count; index++)
{
GeoLine line = list[index];
GeoPoint closest;
Double thisDistance;
closest = line.ClosestPointTo(point, out thisDistance);
/** less than this distance, he is on the line */
if (thisDistance > .1)
{
distance += line.Length;
}
else
{
distance += EarthGeo.GetDistance(line.P2 as GeoPoint, closest);
success = true;
break;
}
}
return(success);
}
public bool TryGetPointAtDistanceFromEnd(Double distance, out GeoPoint point)
{
point = null;
Double totalLength = 0;
GeoLineList list = new GeoLineList(this);
list.Reverse();
for (int index = 0; point == null && index < list.Count; index++)
{
GeoLine line = list[index];
Double newLength = totalLength + line.Length;
if (newLength > distance)
{
Double segLength = distance - totalLength;
point = EarthGeo.GetPoint(line.P2 as GeoPoint, Angle.Reverse(line.Bearing), segLength);
}
else
{
totalLength = newLength;
}
}
return(point != null);
}
public GeoLineList ToGeoLineList()
{
GeoLineList list = new GeoLineList();
for (int x = 0; x < Count - 1; x++)
{
list.Add(new GeoLine(this[x], this[x + 1]));
}
return(list);
}
public bool ContainsAnyEndPoint(GeoLineList other, int precision = 0)
{
bool result = false;
foreach (GeoLine l1 in this)
{
foreach (GeoLine l2 in other)
{
if (l1.IsEndPoint(l2.P1, precision) || l1.IsEndPoint(l2.P2, precision))
{
result = true;
break;
}
}
}
return(result);
}
public GeoLineList(GeoLineList other)
: base(other)
{
}
public GeoPath(GeoLineList lines)
: base(lines)
{
}