private void BtnQuadratciBezier_Click(object sender, RoutedEventArgs e)
{
this.inkCanvas.Strokes.Clear();
Point p1 = new Point()
{
X = 200, Y = 400
};
Point p2 = new Point()
{
X = 300, Y = 200
};
Point p3 = new Point()
{
X = 400, Y = 400
};
List <Point> points = BezierHelper.getQuadraticBezierPoints(p1, p2, p3, Convert.ToInt16(txtCount.Text));
StylusPointCollection stylusPointCollection = new StylusPointCollection();
for (int i = 0; i < points.Count; i++)
{
stylusPointCollection.Add(new StylusPoint(points[i].X, points[i].Y));
}
Stroke stroke = new Stroke(stylusPointCollection);
stroke.DrawingAttributes = new DrawingAttributes {
Width = 1, Height = 1, Color = Color.FromRgb(0, 0, 0)
};
this.inkCanvas.Strokes.Add(stroke);
}
private void drawLine(float nCompress, Point p, Point lastTwoPoint, Point lastOnePoint)
{
startCount++;
if (!isStartedPoint)
{
startTime = (DateTime.Now.Ticks - dtFrom.Ticks) / 10000;
lastControlPoint = p;
stylusPointCollection = new StylusPointCollection();
stylusPointCollection.Add(new StylusPoint(p.X, p.Y, 0.1f));
stroke = new Stroke(stylusPointCollection);
stroke.DrawingAttributes = new DrawingAttributes
{
Width = brushWidth, Height = brushWidth, Color = Color.FromRgb(0, 0, 0)
};
isStartedPoint = true;
isFirst = true;
ic.Strokes.Add(stroke);
isHaveLastControlPoint = false;
}
else
{
isFirst = false;
if (startCount < 3)
{
stylusPointCollection.Add(new StylusPoint(p.X, p.Y, 0.1f));
}
else
{
var controlPoints = BezierHelper.getControlPoints(0.4, lastTwoPoint, lastOnePoint);
if (isHaveLastControlPoint && lastControlPoint.X != 0 && lastControlPoint.Y != 0)
{
var quadraticBezierPoints = BezierHelper.getQuadraticBezierPoints(lastControlPoint,
lastTwoPoint,
controlPoints[0], 6);
foreach (var item in quadraticBezierPoints)
{
stylusPointCollection.Add(new StylusPoint(item.X, item.Y, nCompress));
}
lastControlPoint = controlPoints[1];
}
else
{
isHaveLastControlPoint = true;
lastControlPoint = p;
stylusPointCollection.Add(new StylusPoint(p.X, p.Y, nCompress));
}
}
Console.WriteLine("draw5：{0},{1},{2}", p.X, p.Y, nCompress);
}
points.Add(new MyPoint {
Point = p, Pressure = nCompress, IsFirst = isFirst, LastControlPoint = lastControlPoint
});
}
private void drawLine2(bool isFrist, float nCompress, Point p, MyPoint lastTwoPoint, MyPoint lastOnePoint)
{
if (isFrist)
{
Console.WriteLine("isFirst:" + isFrist);
startTime = (DateTime.Now.Ticks - dtFrom.Ticks) / 10000;
lastControlPoint = p;
stylusPointCollection = new StylusPointCollection();
stylusPointCollection.Add(new StylusPoint(p.X, p.Y, 0.1f));
stroke = new Stroke(stylusPointCollection);
stroke.DrawingAttributes = new DrawingAttributes
{
Width = brushWidth, Height = brushWidth, Color = Color.FromRgb(0, 0, 0)
};
ic.Strokes.Add(stroke);
isHaveLastControlPoint = false;
}
else
{
if ((lastTwoPoint.Point.X == 0 && lastTwoPoint.Point.Y == 0) || (lastOnePoint.Point.X == 0 && lastOnePoint.Point.Y == 0))
{
stylusPointCollection.Add(new StylusPoint(p.X, p.Y, 0.1f));
}
else
{
var controlPoints = BezierHelper.getControlPoints(0.4, lastTwoPoint.Point, lastOnePoint.Point);
if (isHaveLastControlPoint && lastOnePoint.LastControlPoint.X != 0 && lastOnePoint.LastControlPoint.Y != 0)
{
Console.WriteLine("lastOnePoint.LastControlPoint:" + lastOnePoint.LastControlPoint);
var quadraticBezierPoints = BezierHelper.getQuadraticBezierPoints(lastOnePoint.LastControlPoint,
lastTwoPoint.Point,
controlPoints[0], 12);
foreach (var item in quadraticBezierPoints)
{
stylusPointCollection.Add(new StylusPoint(item.X, item.Y, nCompress));
}
lastControlPoint = controlPoints[1];
}
else
{
isHaveLastControlPoint = true;
stylusPointCollection.Add(new StylusPoint(p.X, p.Y, nCompress));
}
}
Console.WriteLine("draw5：{0},{1},{2}", p.X, p.Y, nCompress);
}
}
