private void DrawImageFiltering(Graphics graphics, DataManipulator manipulator)
{
if (data.image == null || data.Points.Count < 3)
{
return;
}
float angle = manipulator.CalculateAngle() * (float)Math.PI / 180f;
Color[,] colors = PrepareColorTable(data.colorMap, ref angle);
colors = ShearX(colors, angle);
colors = ShearY(colors, angle);
colors = ShearX(colors, angle);
PointF point = new PointF(data.BezierPoints[data.index, 0], data.BezierPoints[data.index, 1]);
PointF center = new PointF(colors.GetLength(0) / 2, colors.GetLength(1) / 2);
for (int i = 0; i < colors.GetLength(0); i++)
{
for (int j = 0; j < colors.GetLength(1); j++)
{
if (colors[i, j] == Color.Transparent)
{
continue;
}
(float, float)vec = (i - center.X, j - center.Y);
graphics.DrawRectangle(new Pen(colors[i, j]), (int)(point.X + vec.Item1), (int)(point.Y + vec.Item2), 1, 1);
}
}
}
public Form1()
{
InitializeComponent();
data = new DataProvider(pictureBox1.Width, pictureBox1.Height, pictureBox2.Width, pictureBox2.Height);
drawer = new BitmapDrawer(data);
manipulator = new DataManipulator(data, drawer);
checkBox1.Checked = true;
pictureBox2.Image = data.miniature;
}
private void DrawImageWinForms(Graphics graphics, DataManipulator manipulator)
{
if (data.image == null || data.Points.Count < 3)
{
return;
}
PointF point = new PointF(data.BezierPoints[data.index, 0] - data.image.Width / 2, data.BezierPoints[data.index, 1] - data.image.Height / 2);
graphics.TranslateTransform((float)(point.X + data.image.Width / 2), (float)(point.Y + data.image.Height / 2));
graphics.RotateTransform(manipulator.CalculateAngle());
graphics.TranslateTransform(-(float)(point.X + data.image.Width / 2), -(float)(point.Y + data.image.Height / 2));
graphics.DrawImage(data.image, point);
}
private void DrawImageNaive(Graphics graphics, DataManipulator manipulator)
{
if (data.image == null || data.Points.Count < 3)
{
return;
}
DirectBitmap image = data.directImage;
PointF point = new PointF(data.BezierPoints[data.index, 0], data.BezierPoints[data.index, 1]);
PointF center = new PointF(image.Width / 2, image.Height / 2);
float angle = manipulator.CalculateAngle() * (float)Math.PI / 180f;
for (int i = 0; i < image.Width; i++)
{
for (int j = 0; j < image.Height; j++)
{
(float, float)vec = (i - center.X, j - center.Y);
(float, float)vec2 = (vec.Item1 * (float)Math.Cos(angle) - vec.Item2 * (float)Math.Sin(angle), vec.Item1 *(float)Math.Sin(angle) + vec.Item2 * (float)Math.Cos(angle));
graphics.DrawRectangle(new Pen(image.GetPixel(i, j)), (int)(point.X + vec2.Item1), (int)(point.Y + vec2.Item2), 1, 1);
}
}
}
