/// <summary>
/// 手动设定ROI区域
/// </summary>
/// <param name="idx"></param>
/// <param name="loca"></param>
/// <param name="color"></param>
public void SetRoi(string idx, RegLocation loca, Color color = default(Color))
{
var localClient = new RegLocation();
if (ConvertToScaleImageClient(loca, ref localClient))
{
Rectangle rect = null;
if (_rectList.ContainsKey(idx))
{
rect = _rectList[idx];
}
if (_parent.Children.Contains(rect))
{
_parent.Children.Remove(rect);
rect = null;
}
InitRoiRect(color, ref rect);
var tmp1 = new Rect(localClient.X, localClient.Y, localClient.Width, localClient.Height);
Console.WriteLine($"NImg: loc -> {loca}");
Console.WriteLine($"NImg: -> {tmp1}");
var p1 = AssociatedObject.TranslatePoint(new Point(tmp1.X, tmp1.Y), _parent);
var p2 = AssociatedObject.TranslatePoint(new Point(tmp1.X + tmp1.Width, tmp1.Y + tmp1.Height), _parent);
SetRectangleOnParent(ref rect, new Rect(p1, p2));
_rectList[idx] = rect;
_rectOri[idx] = loca;
}
}
private bool ConvertToScaleImageClient(RegLocation loca, ref RegLocation localClient)
{
bool res = false;
var image = AssociatedObject.Source as BitmapSource;
if (image != null)
{
var imagePixWidth = image.PixelWidth;
var imagePixHeight = image.PixelHeight;
var x = AssociatedObject.RenderSize.Width * loca.X / imagePixWidth;
var y = AssociatedObject.RenderSize.Height * loca.Y / imagePixHeight;
var w = AssociatedObject.RenderSize.Width * loca.Width / imagePixWidth;
var h = AssociatedObject.RenderSize.Height * loca.Height / imagePixHeight;
localClient.X = (int)x;
localClient.Y = (int)y;
localClient.Width = (int)w;
localClient.Height = (int)h;
res = true;
}
return(res);
}
private void AssociatedObject_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
if (Mouse.LeftButton != MouseButtonState.Released)
{
return;
}
if (OnRectReleased != null)
{
var loc = new RegLocation();
if (GetRect(ref loc))
{
OnRectReleased?.Invoke(loc);
if (_rect != null)
{
_parent.Children.Remove(_rect);
_rect = null;
_startlocation = null;
}
}
}
_startlocation = null;
AssociatedObject.Cursor = _cursor;
}
public bool GetRect(ref RegLocation location)
{
if (!ChkRect())
{
return(false);
}
var image = AssociatedObject.Source as BitmapSource;
if (image != null)
{
var po = new Point(Canvas.GetLeft(_rect), Canvas.GetTop(_rect));
var po2 = _parent.TranslatePoint(po, AssociatedObject);
var tmpRect = new Rect
{
X = po2.X,
Y = po2.Y,
Width = _rect.Width,
Height = _rect.Height
};
var imagePixWidth = image.PixelWidth;
var imagePixHeight = image.PixelHeight;
var roiX = (int)(tmpRect.X * imagePixWidth / AssociatedObject.RenderSize.Width);
var roiY = (int)(tmpRect.Y * imagePixHeight / AssociatedObject.RenderSize.Height);
var roiWidth = (int)(tmpRect.Width * imagePixWidth / AssociatedObject.RenderSize.Width);
var roiHeight = (int)(tmpRect.Height * imagePixHeight / AssociatedObject.RenderSize.Height);
location.X = roiX;
location.Y = roiY;
location.Width = roiWidth;
location.Height = roiHeight;
Console.WriteLine($"OImg: -> {location}");
Console.WriteLine($"OImg: Po2-> {tmpRect}");
return(true);
}
return(false);
}
private void RenderRectangles()
{
foreach (var pair in _rectList)
{
var pElement = pair.Value;
if (_rectOri.ContainsKey(pair.Key))
{
var ori = _rectOri[pair.Key];
RegLocation loca = new RegLocation();
if (ConvertToScaleImageClient(ori, ref loca))
{
var loc = AssociatedObject.TranslatePoint(new Point(loca.X, loca.Y), _parent);
Canvas.SetLeft(pElement, loc.X);
Canvas.SetTop(pElement, loc.Y);
}
}
}
}