public Sinogram Clone()
{
Sinogram res = new Sinogram();
res.data = (double[, ])data.Clone();
res.anglesDistribution = anglesDistribution.Clone();
return(res);
}
public static void SaveSinogramToStream(System.IO.Stream s, Sinogram sino)
{
int sz = Sinogram.GetSinogramSizeInBytes(sino);
var outBytes = new byte[sz];
SaveSinogramToBytes(outBytes, 0, sino);
s.Write(outBytes, 0, outBytes.Length);
}
public static void SaveSinogramToBytes(byte[] b, int ofs, Sinogram sino)
{
int Offset = ofs;
int numSamples = sino.NumSamples;
int numPhi = sino.AnglesDistribution.Count;
// 1. кол-во сэмплов по S
BitUtils.ToBytes32((uint)numSamples, b, Offset + 0);
// 2. кол-во направлений
BitUtils.ToBytes32((uint)numPhi, b, Offset + 4);
// 3. данные синограммы, doubles
Offset += 8;
for (int j = 0; j < numPhi; j++)
{
for (int i = 0; i < numSamples; i++)
{
BitUtils.ToDouble(sino[j, i], b, Offset);
Offset += 8;
}
}
}
public static int GetSinogramSizeInBytes(Sinogram sino)
{
// +8 - это NumSamples и NumPhi
return(8 * sino.NumSamples * sino.AnglesDistribution.Count + 8);
}
public void Build(string path)
{
var sins = new double[numSins][, ];
for (int i = 0; i < numSins; i++)
{
sins[i] = new double[indexer.NumDirs, indexer.NumLines];
}
Bitmap bmp = new Bitmap(1024, 1024);
Graphics gr = Graphics.FromImage(bmp);
gr.TranslateTransform(bmp.Width / 2f, bmp.Height / 2f);
List <string> fileList = new List <string>();
if (Directory.Exists(path))
{
DirectoryInfo di = new DirectoryInfo(path);
FileSystemInfo[] files = di.GetFileSystemInfos();
foreach (var file in files)
{
fileList.Add(file.FullName);
}
}
foreach (var file in fileList)
{
var clist = WorkWithFiles.ReadCoincList(file);
foreach (var c in clist)
{
PETDigitalCoincidenceTOF cIJ = new PETDigitalCoincidenceTOF();
EventConverter.CalculateDigitalCoincidenceTOF(c, ref cIJ);
int Ring1 = indexer.GetRing(c.Position1, cIJ.J1);
int Ring2 = indexer.GetRing(c.Position2, cIJ.J2);
var sinidx = Ring1 + Ring2;
if (sinidx >= numSins)
{
continue;
}
int Dir = indexer.GetDir(c.Position1, c.Position2, cIJ.I1, cIJ.I2);
int Line = indexer.GetLine(c.Position1, c.Position2, cIJ.I1, cIJ.I2);
//if (isDebug && ++cnt % 1000 == 0)
//{
// gr.DrawLine(Pens.White, 410 * (float)Math.Cos(Math.PI * Detector1 / 360), 410 * (float)Math.Sin(Math.PI * Detector1 / 360),
// 410 * (float)Math.Cos(Math.PI * Detector2 / 360), 410 * (float)Math.Sin(Math.PI * Detector2 / 360));
//}
if (Line < 0)
{
continue;
}
sins[sinidx][Dir, Line]++;
}
}
if (!Directory.Exists(outDir))
{
Directory.CreateDirectory(outDir);
}
for (int i = 0; i < numSins; i++)
{
Sinogram sino = new Sinogram(sins[i], AnglesDistribution.Uniform(0, Math.PI, indexer.NumDirs));
Stream ostream = File.Create(string.Format("{0}\\{1}", outDir, string.Format("{0}.sg", i)));
//using (StreamWriter w = new StreamWriter(ostream, Encoding.UTF8))
using (ostream)
{
Sinogram.SaveSinogramToStream(ostream, sino);
}
Sinogram.DumpSinogram(sins[i], string.Format("{0}\\{1}.png", outDir, i));
//if (isDebug)
// bmp.Save(string.Format("{0}\\lines.png", arg.OutDir));
}
}
