internal void SaveToStream(Stream stream)
{
if (Segments != null && Points != null)
{
byte[] bytes = BitConverter.GetBytes(Segments.Length);
stream.Write(bytes, 0, bytes.Length);
ShapeSegment[] array = Segments;
for (int i = 0; i < array.Length; i++)
{
ShapeSegment shapeSegment = array[i];
bytes = new byte[Marshal.SizeOf(typeof(byte))];
bytes[0] = (byte)shapeSegment.Type;
stream.Write(bytes, 0, bytes.Length);
bytes = BitConverter.GetBytes(shapeSegment.Length);
stream.Write(bytes, 0, bytes.Length);
}
bytes = BitConverter.GetBytes(Points.Length);
stream.Write(bytes, 0, bytes.Length);
MapPoint[] array2 = Points;
for (int i = 0; i < array2.Length; i++)
{
MapPoint mapPoint = array2[i];
bytes = BitConverter.GetBytes(mapPoint.X);
stream.Write(bytes, 0, bytes.Length);
bytes = BitConverter.GetBytes(mapPoint.Y);
stream.Write(bytes, 0, bytes.Length);
}
}
}
internal static void MoveLargestSegmentToFront(ref MapPoint[] points, ref ShapeSegment[] segments)
{
CalculateSignedArea(ref points, ref segments);
double num = 0.0;
int num2 = 0;
int num3 = 0;
for (int i = 0; i < segments.Length; i++)
{
if (segments[i].PolygonSignedArea < num)
{
num = segments[i].PolygonSignedArea;
num2 = i;
}
}
if (num2 != 0)
{
List <MapPoint> list = new List <MapPoint>(points);
num3 = 0;
for (int j = 0; j < num2; j++)
{
num3 += segments[j].Length;
}
List <MapPoint> range = list.GetRange(num3, segments[num2].Length);
list.RemoveRange(num3, segments[num2].Length);
list.InsertRange(0, range);
points = list.ToArray();
ShapeSegment shapeSegment = segments[0];
segments[0] = segments[num2];
segments[num2] = shapeSegment;
}
}
internal void LoadFromStream(Stream stream)
{
byte[] array = new byte[Marshal.SizeOf(typeof(byte))];
byte[] array2 = new byte[Marshal.SizeOf(typeof(int))];
byte[] array3 = new byte[Marshal.SizeOf(typeof(double))];
stream.Read(array2, 0, array2.Length);
int num = BitConverter.ToInt32(array2, 0);
Segments = new ShapeSegment[num];
for (int i = 0; i < num; i++)
{
stream.Read(array, 0, array.Length);
Segments[i].Type = (SegmentType)array[0];
stream.Read(array2, 0, array2.Length);
Segments[i].Length = BitConverter.ToInt32(array2, 0);
}
stream.Read(array2, 0, array2.Length);
int num2 = BitConverter.ToInt32(array2, 0);
Points = new MapPoint[num2];
for (int j = 0; j < num2; j++)
{
stream.Read(array3, 0, array3.Length);
Points[j].X = BitConverter.ToDouble(array3, 0);
stream.Read(array3, 0, array3.Length);
Points[j].Y = BitConverter.ToDouble(array3, 0);
}
}
private void UpdateMultiPolygonWithHoles()
{
int num = 0;
int num2 = 0;
ShapeSegment[] array = Segments;
for (int i = 0; i < array.Length; i++)
{
ShapeSegment shapeSegment = array[i];
if (shapeSegment.Type == SegmentType.Polygon)
{
if (shapeSegment.PolygonSignedArea <= 0.0)
{
num++;
}
else
{
num2++;
}
}
else if (shapeSegment.Type == SegmentType.StartFigure)
{
MultiPolygonWithHoles = true;
return;
}
}
MultiPolygonWithHoles = (num > 1 && num2 > 0);
}
public static void CutShapes(ref MapPoint[] points, ref ShapeSegment[] segments)
{
List <ShapeSegment> list = new List <ShapeSegment>();
List <MapPoint> list2 = new List <MapPoint>();
PolygonCutter polygonCutter = new PolygonCutter();
int num = 0;
ShapeSegment[] array = segments;
for (int i = 0; i < array.Length; i++)
{
ShapeSegment segment = array[i];
if (segment.Length > 0)
{
bool isClosedAtPole = false;
polygonCutter.ProcessShapeSegment(segment, points, num, PolygonClosingPole.North, out List <ShapeSegment> segments2, out List <MapPoint> segmentPoints, out isClosedAtPole);
if (isClosedAtPole)
{
polygonCutter.ProcessShapeSegment(segment, points, num, PolygonClosingPole.South, out List <ShapeSegment> segments3, out List <MapPoint> segmentPoints2, out isClosedAtPole);
ShapeSegment[] segments4 = segments2.ToArray();
MapPoint[] points2 = segmentPoints.ToArray();
CalculateSignedArea(ref points2, ref segments4);
double num2 = 0.0;
for (int j = 0; j < segments4.Length; j++)
{
num2 += Math.Abs(segments4[j].PolygonSignedArea);
}
ShapeSegment[] segments5 = segments3.ToArray();
MapPoint[] points3 = segmentPoints2.ToArray();
CalculateSignedArea(ref points3, ref segments5);
double num3 = 0.0;
for (int k = 0; k < segments5.Length; k++)
{
num3 += Math.Abs(segments5[k].PolygonSignedArea);
}
if (num2 < num3)
{
list.AddRange(segments2);
list2.AddRange(segmentPoints);
}
else
{
list.AddRange(segments3);
list2.AddRange(segmentPoints2);
}
}
else
{
list.AddRange(segments2);
list2.AddRange(segmentPoints);
}
}
num += segment.Length;
}
segments = list.ToArray();
points = list2.ToArray();
}
public void ProcessShapeSegment(ShapeSegment segment, IList <MapPoint> points, int firstPointIndex, PolygonClosingPole closingPole, out List <ShapeSegment> segments, out List <MapPoint> segmentPoints, out bool isClosedAtPole)
{
isClosedAtPole = false;
segments = new List <ShapeSegment>();
segmentPoints = new List <MapPoint>();
Load(points, firstPointIndex, segment.Length, closingPole);
foreach (PolygonPart shape in GetShapes())
{
ShapeSegment item = default(ShapeSegment);
item.Type = segment.Type;
item.Length = shape.Points.Count;
segments.Add(item);
segmentPoints.AddRange(shape.Points);
isClosedAtPole |= shape.isClosedAtPole;
}
}
public void Simplify(Shape shape, double resolution)
{
if (resolution <= 0.0)
{
return;
}
List <ShapeSegment> list = new List <ShapeSegment>();
List <MapPoint> list2 = new List <MapPoint>();
int num = 0;
for (int i = 0; i < shape.ShapeData.Segments.Length; i++)
{
ShapeSegment item = shape.ShapeData.Segments[i];
if (item.Type != 0 && item.Type != SegmentType.PolyLine)
{
list.Add(item);
for (int j = 0; j < item.Length; j++)
{
list2.Add(shape.ShapeData.Points[num++]);
}
continue;
}
MapPoint[] array = new MapPoint[item.Length];
for (int k = 0; k < item.Length; k++)
{
array[k] = shape.ShapeData.Points[num++];
}
ReducedPointList reducedPointList = ReducePoints(array, resolution);
if (reducedPointList.DistinctCount >= 3)
{
ShapeSegment item2 = default(ShapeSegment);
item2.Type = item.Type;
item2.Length = reducedPointList.Count;
list.Add(item2);
list2.AddRange(reducedPointList);
}
}
shape.ShapeData.Segments = list.ToArray();
shape.ShapeData.Points = list2.ToArray();
shape.ShapeData.UpdateStoredParameters();
}
