/// <summary>
/// Draws the connection line between two items and also the lenght
/// </summary>
/// <param name="uiImage"></param>
/// <param name="item"></param>
/// <param name="item2"></param>
public void DrawLineFromItemToItem(Mat uiImage, YoloItem item, YoloItem item2, out Line line)
{
var startPoint = new OpenCvSharp.Point(item.Center().X *SCALE, item.Center().Y *SCALE);
var endPoint = new OpenCvSharp.Point(item2.Center().X *SCALE, item2.Center().Y *SCALE);
line = new Line()
{
X1 = item.Center().X *SCALE,
Y1 = item.Center().Y *SCALE,
X2 = item2.Center().X *SCALE,
Y2 = item2.Center().Y *SCALE
};
// Draw the line
Cv2.Line(uiImage,
startPoint,
endPoint,
Scalar.Red, 2);
// Draw distance and length
// Casting from points to points is really annoying... TODO: Refactor that.
var sysStartPoint = new System.Windows.Point(startPoint.X, startPoint.Y);
var sysEndPoint = new System.Windows.Point(endPoint.X, endPoint.Y);
var distance = GeometryHelper.Distance(sysStartPoint, sysEndPoint);
var length = distance * coordinateLength;
var centerOfLine = GeometryHelper.GetCenterOfLine(sysStartPoint, sysEndPoint);
// Put text in it.
DrawTextblockWithBackground(
uiImage,
centerOfLine,
$"{string.Format("{0:0.00}", length)}m",
Scalar.Red
);
}
public void SetTrackingObject(YoloItem trackingObject)
{
this._trackingObject = trackingObject.Center();
}
