public static string processOneFile(string filenameWithoutExtention)
{
Console.WriteLine("Processing the file: " + filenameWithoutExtention);
GazeData gd = new GazeData(filenameWithoutExtention);
//writeImage(gd, gd.pngOriginal); //Display the raw gazes in a picture
//writeVideo(gd, gd.aviOriginal); //Create a video of the gazes
//Compute the fixations
gd.gazes = GazeData.fixationBusher2008(gd.gazes);
writeText(gd, gd.csvFixations); //save the fixations in a file
writeImage(gd, gd.pngFixations, false); //Display the fixations in a picture
//writeVideo(gd, gd.aviFixations);
////Line break detection
////gd.rowDataLineBreak(-40, 3, 2); //not usually used
//gd.lines = GazeData.lineBreakDetectionSimple(ref gd.gazes, -500);
////gd.lineBreakDetectionOkoso(); //not usually used
//writeText(gd, gd.csvFixations); //save the fixations in a file
//writeImage(gd, gd.pngLineBreak, false);
////writeVideo(gd, gd.aviLineBreak);
//Align gaze with lines
//align(gd, "doc.layout");
//writeImage(gd, gd.pngFixations);
//writeVideo(gd, gd.aviFixations);
return(gd.csvFixations);
}
public static void writeImage(GazeData gd, string outputFile, string backGroundImage)
{
// quick hack because some people though it was a good idea to put tobii on a second screen but we have no idea what is the size of the first screen!!!
Bitmap image = new Bitmap(backGroundImage);
Graphics g = Graphics.FromImage(image);
SolidBrush brush = new SolidBrush(Color.Red);
for (int i = 0; i < gd.gazes.Count; i++)
{
g.FillEllipse(brush, new Rectangle((int)gd.gazes[i].gazeX - 5, (int)gd.gazes[i].gazeY - 5, 10, 10));
}
g.Save();
image.Save(outputFile);
Console.WriteLine("The image " + outputFile + " file has been written");
}
public static void writeImage(GazeData gd, string outputFile, bool useBackGround)
{
if (gd.width > 0 && gd.height > 0)
{
// quick hack because some people though it was a good idea to put tobii on a second screen but we have no idea what is the size of the first screen!!!
if (gd.gazes[gd.gazes.Count - 1].gazeX > gd.width)
{
gd.width += Screen.PrimaryScreen.Bounds.Width;
if (Screen.PrimaryScreen.Bounds.Height > gd.height)
{
gd.height = Screen.PrimaryScreen.Bounds.Height;
}
}
Bitmap image = new Bitmap(gd.width, gd.height);
Graphics g = Graphics.FromImage(image);
g.Clear(Color.White);
SolidBrush brush = new SolidBrush(Color.Red);
//Put the background
if (gd.backgroundPath != "" && useBackGround)
{
Image back = Image.FromFile(gd.backgroundPath);
g.DrawImage(back, (gd.width - back.Width) / 2, (gd.height - back.Height) / 2);
}
for (int i = 0; i < gd.gazes.Count; i++)
{
//Use different color for different lines
if (gd.gazes[i].idLine == 0)
{
brush.Color = Color.Black;
}
else
{
brush.Color = colors[gd.gazes[i].idLine % colors.Count];
}
g.FillEllipse(brush, new Rectangle((int)gd.gazes[i].gazeX - 5, (int)gd.gazes[i].gazeY - 5, 10, 10));
}
g.Save();
image.Save(outputFile);
Console.WriteLine("The image " + outputFile + " file has been written");
}
else
{
Console.WriteLine("The image cannot be written");
}
}
public static void writeText(GazeData gd, string outputFile)
{
System.Globalization.CultureInfo customCulture = (System.Globalization.CultureInfo)System.Threading.Thread.CurrentThread.CurrentCulture.Clone();
customCulture.NumberFormat.NumberDecimalSeparator = ".";
System.Threading.Thread.CurrentThread.CurrentCulture = customCulture;
List <string> textLines = new List <string>();
//header
textLines.Add("timestamp;gazeX;gazeY;duration;idLine");
//content
foreach (var gaze in gd.gazes)
{
textLines.Add(gaze.timestamp + ";" + gaze.gazeX + ";" + gaze.gazeY + ";" + gaze.duration + ";" + gaze.idLine);
}
File.WriteAllLines(outputFile, textLines.ToArray());
}
public static void writeVideo(GazeData gd, string path)
{
Bitmap image = new Bitmap(gd.width, gd.height);
Graphics g = Graphics.FromImage(image);
SolidBrush brush = new SolidBrush(Color.Red);
//Display the gaze in one video
VideoFileWriter writer = new VideoFileWriter();
writer.Open(path, gd.width, gd.height);
//Bitmap image = new Bitmap(width, height);
//Graphics g = Graphics.FromImage(image);
//Brush brush = Brushes.Red;
g.Clear(Color.Black);
//Put the background
if (gd.backgroundPath != "")
{
Image back = Image.FromFile(gd.backgroundPath);
g.DrawImage(back, (gd.width - back.Width) / 2, (gd.height - back.Height) / 2);
}
Console.WriteLine("Writing the video, it can take some times...");
// write the frames
for (int i = 0; i < gd.gazes.Count; i++)
{
//Use different color for different lines
if (gd.gazes[i].idLine == 0)
{
brush.Color = Color.Black;
}
else
{
brush.Color = colors[gd.gazes[i].idLine % colors.Count];
}
g.FillEllipse(brush, new Rectangle((int)gd.gazes[i].gazeX - 5, (int)gd.gazes[i].gazeY - 5, 10, 10));
g.Save();
writer.WriteVideoFrame(image, new TimeSpan(0, 0, 0, 0, (int)gd.gazes[i].timestamp));
}
writer.Close();
}
