public Class819(Class811.Class818 segment, double x)
{
this.class818_0 = segment;
this.double_0 = x;
}
private static List <Segment2D[]> smethod_8(
Polyline2D[] borders,
Point2D reference,
Vector2D offset,
Vector2D direction,
double[] dashes,
bool fillInterior)
{
double angle = System.Math.Atan2(direction.Y, direction.X);
Matrix3D matrix3D1 = Transformation3D.Rotate(-angle) * Transformation3D.Translation(-reference.X, -reference.Y);
Matrix3D matrix3D2 = Transformation3D.Translation(reference.X, reference.Y) * Transformation3D.Rotate(angle);
Vector2D vector2D = matrix3D1.Transform(offset);
if (vector2D.Y == 0.0)
{
return(new List <Segment2D[]>());
}
if (vector2D.Y < 0.0)
{
vector2D = -vector2D;
}
List <Class811.Class818> class818List1 = new List <Class811.Class818>();
double dashPatternLength = 0.0;
if (dashes != null)
{
foreach (double dash in dashes)
{
dashPatternLength += System.Math.Abs(dash);
}
}
int num1 = 0;
int num2 = -1;
foreach (Polyline2D border in borders)
{
int borderId = border.Closed ? num1++ : num2--;
for (int index = border.Count - 1; index > 0; --index)
{
class818List1.Add(new Class811.Class818(borderId, matrix3D1.Transform(border[index]), matrix3D1.Transform(border[index - 1])));
}
if (border.Closed && border.Count >= 3)
{
class818List1.Add(new Class811.Class818(borderId, matrix3D1.Transform(border[0]), matrix3D1.Transform(border[border.Count - 1])));
}
}
if (class818List1.Count == 0)
{
return(new List <Segment2D[]>());
}
class818List1.Sort((IComparer <Class811.Class818>)Class811.class816_0);
List <Class811.Class818> class818List2 = new List <Class811.Class818>();
double y1 = class818List1[0].point2D_0.Y;
double num3 = double.NegativeInfinity;
foreach (Class811.Class818 class818 in class818List1)
{
if (class818.point2D_1.Y > num3)
{
num3 = class818.point2D_1.Y;
}
}
double num4 = System.Math.Ceiling(y1 / vector2D.Y);
double x = vector2D.X * num4;
double y2 = vector2D.Y * num4;
List <Segment2D[]> segment2DArrayList = new List <Segment2D[]>();
for (; y2 <= num3; y2 += vector2D.Y)
{
while (class818List1.Count > 0 && class818List1[0].point2D_0.Y <= y2)
{
Class811.Class818 class818 = class818List1[0];
class818List1.RemoveAt(0);
if (class818.point2D_1.Y > y2)
{
class818List2.Add(class818);
}
}
List <Class811.Class819> intersections = new List <Class811.Class819>();
for (int index = class818List2.Count - 1; index >= 0; --index)
{
Class811.Class818 class818 = class818List2[index];
if (class818.point2D_1.Y <= y2)
{
class818List2.RemoveAt(index);
}
else
{
intersections.Add(class818.method_0(y2));
}
}
if (intersections.Count >= 2)
{
intersections.Sort();
if (intersections.Count % 2 != 0)
{
Class811.smethod_10(intersections);
}
for (int index = intersections.Count - 1; index > 0; --index)
{
if (intersections[index].double_0 == intersections[index - 1].double_0)
{
intersections.RemoveAt(index);
intersections.RemoveAt(--index);
}
}
if (intersections.Count > 0)
{
if (dashPatternLength > 0.0)
{
List <Pair <double> > mappedDashes = new List <Pair <double> >();
int num5 = intersections.Count / 2;
for (int index = 0; index < num5; ++index)
{
Class811.Class819 class819_1 = intersections[2 * index];
Class811.Class819 class819_2 = intersections[2 * index + 1];
Class811.smethod_9(mappedDashes, x, class819_1.double_0, class819_2.double_0, dashes, dashPatternLength);
}
if (mappedDashes.Count > 0)
{
Segment2D[] segment2DArray = new Segment2D[mappedDashes.Count];
for (int index = 0; index < mappedDashes.Count; ++index)
{
Point2D point1 = new Point2D(mappedDashes[index].First, y2);
Point2D point2 = new Point2D(mappedDashes[index].Second, y2);
segment2DArray[index] = new Segment2D(matrix3D2.Transform(point1), matrix3D2.Transform(point2));
}
segment2DArrayList.Add(segment2DArray);
}
}
else
{
Segment2D[] segment2DArray = new Segment2D[intersections.Count / 2];
for (int index = 0; index < intersections.Count; index += 2)
{
Point2D point1 = new Point2D(intersections[index].double_0, y2);
Point2D point2 = new Point2D(intersections[index + 1].double_0, y2);
segment2DArray[index / 2] = new Segment2D(matrix3D2.Transform(point1), matrix3D2.Transform(point2));
}
segment2DArrayList.Add(segment2DArray);
}
}
}
x += vector2D.X;
}
return(segment2DArrayList);
}