public void Load(IList <MapPoint> points, int firstPointIndex, int segmentLength, PolygonClosingPole closingPole)
{
MapPoint mapPoint = points[firstPointIndex];
MapPoint mapPoint2 = points[firstPointIndex + segmentLength - 1];
this.m_polygonIsClosed = mapPoint.Equals(mapPoint2);
this.m_polygonIsCut = false;
this.m_polygonPartsList = new List <PolygonPart>();
PolygonPart polygonPart = new PolygonPart(closingPole);
MapPoint mapPoint3 = default(MapPoint);
for (int i = 0; i < segmentLength; i++)
{
MapPoint mapPoint4 = points[firstPointIndex + i];
if (i == 0)
{
polygonPart.Points.Add(mapPoint4);
}
else
{
MapPoint mapPoint5 = mapPoint3;
foreach (MapPoint item in GeoUtils.DensifyLine(mapPoint3, mapPoint4, GeoUtils.DEFAULT_DENSIFICATION_ANGLE))
{
if (Math.Abs(item.X - mapPoint5.X) <= 180.0)
{
polygonPart.Points.Add(item);
mapPoint5 = item;
}
else if (Math.Abs(item.X) == 180.0)
{
MapPoint mapPoint6 = new MapPoint(0.0 - item.X, item.Y);
polygonPart.Points.Add(mapPoint6);
mapPoint5 = mapPoint6;
}
else if (Math.Abs(mapPoint5.X) == 180.0 && polygonPart.Points.Count == 1)
{
mapPoint5.X = 0.0 - mapPoint5.X;
polygonPart.Points[polygonPart.Points.Count - 1] = mapPoint5;
polygonPart.Points.Add(item);
mapPoint5 = item;
}
else
{
MapPoint mapPoint7 = default(MapPoint);
MapPoint mapPoint8 = default(MapPoint);
this.FindIntersectionPoints(mapPoint5, item, out mapPoint7, out mapPoint8);
if (!mapPoint5.Equals(mapPoint7))
{
polygonPart.Points.Add(mapPoint7);
}
this.m_polygonPartsList.Add(polygonPart);
polygonPart = new PolygonPart(closingPole);
if (!item.Equals(mapPoint8))
{
polygonPart.Points.Add(mapPoint8);
}
polygonPart.Points.Add(item);
this.m_polygonIsCut = true;
mapPoint5 = item;
}
}
mapPoint4 = mapPoint5;
}
mapPoint3 = mapPoint4;
}
if (this.m_polygonIsCut && this.m_polygonIsClosed && polygonPart.LastPoint.Equals(this.m_polygonPartsList[0].FirstPoint))
{
polygonPart.Points.RemoveAt(polygonPart.Points.Count - 1);
this.m_polygonPartsList[0].Points.InsertRange(0, polygonPart.Points);
}
else
{
this.m_polygonPartsList.Add(polygonPart);
}
if (!this.m_polygonIsCut && this.m_polygonIsClosed && Math.Abs(polygonPart.FirstPoint.X) == 180.0 && polygonPart.FirstPoint.X == 0.0 - polygonPart.LastPoint.X)
{
this.m_polygonIsCut = true;
}
}
private void FindIntersectionPoints(MapPoint point1, MapPoint point2, out MapPoint intersectionPoint1, out MapPoint intersectionPoint2)
{
double num = (double)((point1.X > 0.0) ? 180 : (-180));
MapPoint mapPoint = default(MapPoint);
mapPoint.X = point2.X + num * 2.0;
mapPoint.Y = point2.Y;
double num2 = mapPoint.X - point1.X;
double num3 = mapPoint.Y - point1.Y;
intersectionPoint1 = default(MapPoint);
intersectionPoint1.X = num;
if (num2 != 0.0)
{
intersectionPoint1.Y = point1.Y + (num - point1.X) * num3 / num2;
}
else
{
intersectionPoint1.Y = point1.Y + num3 / 2.0;
}
intersectionPoint2 = default(MapPoint);
intersectionPoint2.X = 0.0 - num;
intersectionPoint2.Y = intersectionPoint1.Y;
}