public static PointF Convert_ONE_point_scale_for_save(this PictureBox pb, PointF Input_array_point)
{
var imageRect = pb.GetImageRectangle();
var image = pb.Image;
float scaleX = (float)image.Width / imageRect.Width;
float scaleY = (float)image.Height / imageRect.Height;
PointF _Array_return = new PointF();
_Array_return.X = Scale((int)Input_array_point.X - imageRect.X, scaleX, image.Width);
_Array_return.Y = Scale((int)Input_array_point.Y - imageRect.Y, scaleY, image.Height);
return(_Array_return);
}
public static Rectangle CropImage(this PictureBox pb, int x, int y, int w, int h)
{
var imageRect = pb.GetImageRectangle();
var image = pb.Image;
float scaleX = (float)image.Width / imageRect.Width;
float scaleY = (float)image.Height / imageRect.Height;
var cropRect = new Rectangle();
cropRect.X = Scale(x - imageRect.X, scaleX, image.Width);
cropRect.Y = Scale(y - imageRect.Y, scaleY, image.Height);
cropRect.Width = Scale(w, scaleX, image.Width - cropRect.X);
cropRect.Height = Scale(h, scaleY, image.Height - cropRect.Y);
//var result = new Bitmap(cropRect.Width, cropRect.Height, image.PixelFormat);
//using (var g = Graphics.FromImage(result))
// g.DrawImage(image, new Rectangle(new Point(0, 0), cropRect.Size), cropRect, GraphicsUnit.Pixel);
//return result;
return(cropRect);
}
public static PointF[] Convert_point_scale_for_save(this PictureBox pb, PointF[] Input_array_point)
{
PointF[] _Array_return = new PointF[4];
var imageRect = pb.GetImageRectangle();
var image = pb.Image;
float scaleX = (float)image.Width / imageRect.Width;
float scaleY = (float)image.Height / imageRect.Height;
PointF Temp;
for (int i = 0; i < 4; i++)
{
Temp = new PointF();
Temp.X = Scale((int)Input_array_point[i].X - imageRect.X, scaleX, image.Width);
Temp.Y = Scale((int)Input_array_point[i].Y - imageRect.Y, scaleY, image.Height);
_Array_return[i] = Temp;
}
return(_Array_return);
}
