private void drawSplineToolStripMenuItem_Click(object sender, EventArgs e)
{
if (_points.Count == 0)
{
return;
}
float[] ex;
float[] ey;
CubicSpline.FitParametric(_points.Select(x => x.X).ToArray(), _points.Select(x => x.Y).ToArray(), _points.Count * 100, out ex, out ey);
using (Graphics g = Graphics.FromImage(MainImage.Image))
{
for (int i = 1; i < _points.Count; i++)
{
g.DrawLine(new Pen(Color.Green, 1), _points[i - 1], _points[i]);
}
for (int i = 1; i < ex.Length; i++)
{
g.DrawLine(new Pen(Color.Red, 2), ex[i - 1], ey[i - 1], ex[i], ey[i]);
}
g.DrawCurve(new Pen(Color.Blue), _points.ToArray());
}
MainImage.Invalidate();
MessageBox.Show("RED: Spline interpolation\r\nBLUE: C# Curve line\r\nGREEN: Line by points", "INFO",
MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
}
private async void UndoExecute()
{
_buffer = new int[MainImage.PixelWidth * MainImage.PixelHeight];
_maskBuffer = new byte[MainImage.PixelWidth * MainImage.PixelHeight];
_filterApplied = false;
_originalStream.Seek(0, SeekOrigin.Begin);
_editingSession = await EditingSessionFactory.CreateEditingSessionAsync(_originalStream);
await _editingSession.RenderToWriteableBitmapAsync(MainImage);
MainImage.Invalidate();
CanApply = false;
_noChanges = true;
UndoCommand.RaiseCanExecuteChanged();
if (PreviewImage != null)
{
for (var i = 0; i < PreviewImage.Pixels.Length; ++i)
{
PreviewImage.Pixels[i] = 0;
}
PreviewImage.Invalidate();
}
BindTool();
}
private void MainImage_MouseMove(object sender, MouseEventArgs e)
{
if (MainImage.Image == null)
{
return;
}
if (_painted)
{
int r = new Random().Next(0, 10);
if (r % 2 == 0)
{
return;
}
if (_points.Where(x => (int)x.Y == e.Y && (int)x.X == e.X).ToList().Count == 0)
{
_points.Add(e.Location);
using (Graphics g = Graphics.FromImage((Bitmap)MainImage.Image))
{
g.DrawRectangle(new Pen(Color.Green), e.X, e.Y, 1, 1);
}
MainImage.Invalidate();
}
}
}