public IList<IGesture> Recognize(Stroq stroq)
{
var result = new List<IGesture>();
foreach (IGesture gesture in _gestures)
{
if (gesture.Recognize(stroq))
{
result.Add(gesture);
return result;
}
}
return result;
}
public bool Recognize(Stroq stroq)
{
// stroq = stroq.GetResampled(20);
_hitStroqs = new List<Stroq>();
bool isScribble = false;
foreach (Stroq existingStroq in _inqCanvas.GetStrokes().Where(s => s != stroq))
{
IList<Vector2> intersections = new List<Vector2>();
IList<LineSegment> existingStroqSegs = existingStroq.ToLineSegments();
IList<LineSegment> scribbleSegs = stroq.ToLineSegments();
foreach (LineSegment stroqResampledSeg in existingStroqSegs)
{
foreach (LineSegment stroqSeg in scribbleSegs)
{
var intersection = new Vector2();
if (stroqSeg.Intersects(stroqResampledSeg, out intersection))
{
intersections.Add(intersection);
}
}
}
var intersectionStroq = new Stroq(intersections);
if (intersectionStroq.Points.Count > 2 && intersectionStroq.GetAveragePointDistance() < 20)
{
isScribble = true;
_hitStroqs.Add(existingStroq);
}
// Check for small exisiting strokes that are completely covered by the scribble.
// TODO: add back in
/*
if (stroq.BoundingRect.Contains(existingStroq.BoundingRect))
{
isScribble = true;
_hitStroqs.Add(existingStroq);
}
*/
}
return isScribble;
}
private void OnStrokeAdded(object sender, Stroq stroq)
{
Debug.WriteLine("Stroke addded");
var gestures = _gesturizer.Recognize(stroq);
foreach (var gesture in gestures)
{
if (gesture is XyAxisGesture)
{
DrawXyAxis();
xInqCanvas.RemoveStroke(stroq);
} else if (gesture is ScribbleGesture)
{
var scribble = (ScribbleGesture) gesture;
foreach (var hitStroq in scribble.HitStroqs.ToList())
{
xInqCanvas.RemoveStroke(hitStroq);
}
xInqCanvas.RemoveStroke(stroq);
QueryStroqs.Remove(stroq);
}
}
if (gestures.Count == 0)
{
if (stroq.Points.Count > 30 && _axisDrawn)
QueryStroqs.Add(stroq);
else
xInqCanvas.RemoveStroke(stroq);
}
}
public void RemoveStroke(Stroq stroq)
{
var pl = _strokes[stroq];
Children.Remove(pl);
_strokes.Remove(stroq);
}
public void AddStroke(Polyline pl, Stroq stroq)
{
_strokes.Add(stroq, pl);
StrokeAdded?.Invoke(this, stroq);
}
public void SplitTrBl(out Stroq left, out Stroq right)
{
left = new Stroq();
right = new Stroq();
var rect = BoundingRect;
var tr = new Vector2(rect.X + rect.Width, rect.Y);
var bl = new Vector2(rect.X, rect.Y + rect.Height);
var bltr = tr - bl;
foreach (var point in Points)
{
var blToP = point - bl;
if (bltr.Cross(blToP) < 0)
left.Points.Add(point);
else
right.Points.Add(point);
}
var rightLine = MathUtil.ApproximateLine(right.Points);
}
public Stroq GetDerivate()
{
var d = new Stroq();
for (var i = 0; i < Points.Count - 1; i++)
{
var x = Points[i].X;
var dy = Points[i + 1].Y - Points[i].Y;
d.Points.Add(new Point(x, dy));
}
return d;
}
public Stroq Clone()
{
var s = new Stroq();
foreach (var point in Points)
{
s.Points.Add(new Point(point.X, point.Y));
}
if (BackingStroke != null)
s.BackingStroke = BackingStroke.Clone();
return s;
}
public Stroq GetDerivate()
{
var d = new Stroq();
for (int i = 0; i < _points.Count - 1; i++)
{
double x = _points[i].X;
double dy = _points[i + 1].Y - _points[i].Y;
d.Points.Add(new Point(x, dy));
}
return d;
}
private void OnStrokeAdded(object sender, Stroq stroke)
{
Rect bb = stroke.BoundingRect;
double w = MathUtil.Clamp(0,1,bb.Width / xInqCanvas.ActualWidth);
double x = bb.X / xInqCanvas.ActualWidth;
var end = MathUtil.Clamp(0,1,x + w);
OnSelectionChange?.Invoke(x, end);
var lvm = (LineGraphViewModel) DataContext;
var ts = lvm.TimeSeries.First().Clone();
ts.Trim(x, x+w);
var transform = (CompositeTransform)RenderTransform;
var tg = new TransformGroup();
tg.Children.Add(Controller.Instance.MainCanvas.RenderTransform);
// tg.Children.Add(transform);
var sp = tg.TransformPoint(new Point(transform.TranslateX, transform.TranslateY));
var qb = Controller.Instance.AddQueryBox(sp.X, sp.Y, ts.GetNormalized());
Anim.To(qb, "X", transform.TranslateX + 500, 300);
var ty = transform.TranslateY -150;
Anim.To(qb, "Y", ty, 300);
}