//point[] seq
public static Bitmap ToBitmap(GestureData[] sequence)
{
if (sequence.Length == 0)
return null;
int xmax = (int)sequence.Max(x => x.HandR.X);
int xmin = (int)sequence.Min(x => x.HandR.X);
int ymax = (int)sequence.Max(x => x.HandR.Y);
int ymin = (int)sequence.Min(x => x.HandR.Y);
int width = xmax - xmin;
int height = ymax - ymin;
Bitmap bmp = new Bitmap(width + 16, height + 16);
Graphics g = Graphics.FromImage(bmp);
for (int i = 1; i < sequence.Length; i++)
{
int x = (int)sequence[i].HandR.X - xmin;
int y = (int)sequence[i].HandR.Y - ymin;
int p = (int)Accord.Math.Tools.Scale(0, sequence.Length, 0, 255, i);
int prevX = (int)sequence[i - 1].HandR.X - xmin;
int prevY = (int)sequence[i - 1].HandR.Y - ymin;
using (Brush brush = new SolidBrush(Color.FromArgb(255 - p, 0, p)))
using (Pen pen = new Pen(brush, 16))
{
pen.StartCap = LineCap.Round;
pen.EndCap = LineCap.Round;
g.DrawLine(pen, prevX, prevY, x, y);
}
}
return bmp;
}
