public PhotoRegion[] GetRegionImages()
{
List <PhotoRegion> gatheredRegions = new List <PhotoRegion>();
int N = ImagesCount;
for (int i = 0; i < N; i++)
{
var regions = imageRegions[i];
var transform = imageTransforms[i];
var backTransform = transform.Inverse;
foreach (CalibratedRegionVM regVM in regions)
{
Point up = backTransform.Transform(regVM.Up);
Point down = backTransform.Transform(regVM.Bottom);
Point side = backTransform.Transform(regVM.Side);
Point M = Calc.FindNormalIntersection(down, up, side);
Vector sideV = side - M;
//todo: coerce side point side
double height = (up - down).Length;
double width = (sideV * 2.0).Length;
Vector downUp = up - down;
Vector downUpNorm = new Vector(downUp.Y, -downUp.X);
if (sideV * downUpNorm > 0.0)
{
sideV.Negate();
}
TransformGroup tg = new TransformGroup();
Point upperLeft = up - sideV;
tg.Children.Add(new TranslateTransform(-upperLeft.X, -upperLeft.Y));
if (sideV.X == 0)
{
throw new NotImplementedException();
}
else
{
double angle = Vector.AngleBetween(sideV, new Vector(1.0, 0.0));
tg.Children.Add(new RotateTransform(angle));
}
Canvas canvas = new Canvas();
Image img = new Image();
img.Source = new BitmapImage(new Uri(imageStorage.GetFilePath(imageIDs[i])));
canvas.Children.Add(img);
img.RenderTransform = tg;
canvas.Measure(new Size(width, height));
canvas.Arrange(new Rect(new Size(width, height)));
RenderTargetBitmap bmp = new RenderTargetBitmap((int)width, (int)height, 96, 96, PixelFormats.Pbgra32);
bmp.Render(canvas);
var encoder = new PngBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(bmp));
var bitmap = new BitmapImage();
using (MemoryStream stm = new MemoryStream())
{
encoder.Save(stm);
stm.Seek(0, SeekOrigin.Begin);
bitmap.BeginInit();
bitmap.StreamSource = stm;
bitmap.CacheOption = BitmapCacheOption.OnLoad;
bitmap.EndInit();
bitmap.Freeze();
}
gatheredRegions.Add(new PhotoRegion(bitmap, new Size(width, height), regVM.Order, regVM.Length)); //for now upper and lower are just placeholders holding order and length
}
}
List <PhotoRegion> result = new List <PhotoRegion>();
//transforming order into real depth
var reorderedRegions = gatheredRegions.OrderBy(r => r.ImageUpperDepth).ToArray(); //ordering by order
double prevBound = UpperDepth;
for (int j = 0; j < reorderedRegions.Length; j++)
{
PhotoRegion curReg = reorderedRegions[j];
result.Add(new PhotoRegion(curReg.BitmapImage, curReg.ImageSize, prevBound, prevBound + curReg.ImageLowerDepth));
prevBound = prevBound + curReg.ImageLowerDepth;
}
return(result.ToArray());
}