/*
* This function takes every white object and checks if there is an object next to it and has similar orientation as it.
* If so, it leaves the object otherwise it deletes it.
*/
public unsafe static void Check(List <Zvezda> Z, Bitmap Img, BitmapData data)
{
byte *Ptr = (byte *)data.Scan0.ToPointer();
bool objekat = false;
var LIB = new LIB();
int[][] visited = new int[Img.Width][];
for (int i = 0; i < Img.Width; ++i)
{
visited[i] = new int[Img.Height];
}
for (int i = 0; i < Z.Count; ++i)
{
objekat = false;
for (int j = 0; j < Z[i].Coords.Count; ++j)
{
visited[Z[i].Coords[j].X][Z[i].Coords[j].Y] = 1;
}
Tuple <double, double> function = LIB.L(Z[i].Coords);
double k = function.Item1, m = function.Item2;
if ((k < 1) && (k > -1))
{
for (int j = Z[i].brunt.X; j < Math.Min(Z[i].brunt.X + Z[i].length, Img.Width); ++j)
{
double y = k * j + m;
if ((!LIB.OutOfBoundaries(5, (int)y, Img.Width, Img.Height)) && (visited[j][(int)y] == 0) && (*(Ptr + (int)y * data.Stride + j) == 255))
{
objekat = true;
}
}
}
else
{
for (int j = Z[i].brunt.Y; j < Math.Min(Z[i].brunt.Y + Z[i].length, Img.Height); ++j)
{
double x = (j - m) / k;
if ((!LIB.OutOfBoundaries((int)x, 3, Img.Width, Img.Height)) && (visited[(int)x][j] == 0) && (*(Ptr + j * data.Stride + (int)x) == 255))
{
objekat = true;
}
}
}
if (!objekat)
{
for (int j = 0; j < Zvezde[i].Coords.Count; ++j)
{
*(Ptr + Zvezde[i].Coords[j].Y * data.Stride + Zvezde[i].Coords[j].X) = 0;
}
Zvezde[i].Delete();
--i;
}
}
}
/*
* Draws the remaining white objects on a new bitmap.
*/
public unsafe static Bitmap DrawImage(List <Zvezda> Zvezde, Size S)
{
Bitmap btm = new Bitmap(S.Width, S.Height, PixelFormat.Format8bppIndexed);
AForge.Imaging.Image.SetGrayscalePalette(btm);
var LIB = new LIB();
BitmapData data = btm.LockBits(new Rectangle(0, 0, btm.Width, btm.Height), ImageLockMode.ReadWrite,
btm.PixelFormat);
byte *Ptr = (byte *)data.Scan0.ToPointer();
for (int i = 0; i < Zvezde.Count; ++i)
{
// LIB.drawLine(ref btm, LIB.L(Zvezde[i].Coords),Zvezde[i].brunt, Zvezde[i].length, data);
for (int j = 0; j < Zvezde[i].Coords.Count; ++j)
{
*(Ptr + Zvezde[i].Coords[j].Y * data.Stride + Zvezde[i].Coords[j].X) = 255;
}
}
btm.UnlockBits(data);
// Zvezde = new List<Zvezda>();
return(btm);
}
