private byte[] GetImageData(ColorPoint[] points)
{
ColorPoint last = points.Last();
int size = last.Position + 1;
using (var ms = new MemoryStream())
{
using (var bmp = new Bitmap(1, size, PixelFormat.Format32bppArgb))
{
using (Graphics g = Graphics.FromImage(bmp))
{
for (int i = 1; i < points.Length; i++)
{
var rect = new Rectangle(0, points[i - 1].Position, 1, points[i].Position);
var brush = new LinearGradientBrush(
rect,
points[i - 1].Color,
points[i].Color,
LinearGradientMode.Vertical);
g.FillRectangle(brush, rect);
}
bmp.SetPixel(0, last.Position, last.Color);
bmp.Save(ms, ImageFormat.Png);
}
}
return ms.ToArray();
}
}
