private void drawLine(Point p1, Point p2)
{
List <Point> controlPoints = BezierHelper.getControlPoints(0.4, p1, p2);
if (isHaveLastControlPoint == false)
{
lastControlPoint = p1;
isHaveLastControlPoint = true;
}
QuadraticBezierSegment bezierSegment = new QuadraticBezierSegment(p1, controlPoints[0], true);
lastControlPoint = controlPoints[1];
pathFigure.Segments.Add(bezierSegment);
LineSegment lineSegment = new LineSegment(controlPoints[1], true);
pathFigure.Segments.Add(lineSegment);
//if (isHaveLastControlPoint == false)
//{
// lastControlPoint = p1;
// isHaveLastControlPoint = true;
//}
//LineSegment lineSegment=new LineSegment(p2,true);
//pathFigure.Segments.Add(lineSegment);
// Graphics.FromHwnd(this)
lastControlPoint = controlPoints[1];
}
private void drawLine(Point p1, Point p2)
{
List <Point> controlPoints = BezierHelper.getControlPoints(0.4, p1, p2);
if (isHaveLastControlPoint == false)
{
lastControlPoint = p1;
isHaveLastControlPoint = true;
}
//先画bezier，再画直线
// QuadraticBezierSegment bezierSegment = new QuadraticBezierSegment(p1, controlPoints[0], true);
//
// lastControlPoint = controlPoints[1];
// pathFigure.Segments.Add(bezierSegment);
// LineSegment lineSegment = new LineSegment(controlPoints[1], true);
// pathFigure.Segments.Add(lineSegment);
StreamGeometry streamGeometry = new StreamGeometry();
using (StreamGeometryContext ctx = streamGeometry.Open())
{
ctx.BeginFigure(lastControlPoint, false, false);
ctx.QuadraticBezierTo(p1, controlPoints[0], true, true);
ctx.LineTo(controlPoints[1], true, true);
}
lastControlPoint = controlPoints[1];
geometryGroup.Children.Add(streamGeometry);
}
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);
}
}
private void drawLine(Point p1, Point p2, Point p3)
{
List <Point> controlPoints = BezierHelper.getControlPoints(0.3, p1, p2, p3);
if (isHaveLastControlPoint == false)
{
lastControlPoint = p1;
isHaveLastControlPoint = true;
}
BezierSegment bezierSegment = new BezierSegment(lastControlPoint, controlPoints[0], p2, true);
lastControlPoint = controlPoints[1];
pathFigure.Segments.Add(bezierSegment);
}
private void initViews()
{
PathGeometry pathGeometry = new PathGeometry();
pathFigure = new PathFigure();
pathGeometry.Figures.Add(pathFigure);
Point p1 = new Point(100, 300);
Point p2 = new Point(200, 200);
Point p3 = new Point(300, 300);
Point p4 = new Point(400, 300);
// List<Point> controlPoints = getControlPoints(0.3, p1, p2, p3);
pathFigure.StartPoint = p1;
// BezierSegment bezierSegment=new BezierSegment(p1,controlPoints[0],p2,true);
// pathFigure.Segments.Add(bezierSegment);
// Point lastControlPoint = controlPoints[1];
//
// controlPoints = getControlPoints(0.3, p2, p3, p4); ;
// bezierSegment = new BezierSegment(lastControlPoint, controlPoints[0], p3, true);
//
// pathFigure.Segments.Add(bezierSegment);
List <Point> controlPoints = BezierHelper.getControlPoints(0.4, p1, p2);
pathFigure.StartPoint = p1;
LineSegment lineSegment = new LineSegment(controlPoints[0], true);
pathFigure.Segments.Add(lineSegment);
controlPoints = BezierHelper.getControlPoints(0.4, p2, p3);
QuadraticBezierSegment bezierSegment = new QuadraticBezierSegment(p2, controlPoints[0], true);
pathFigure.Segments.Add(bezierSegment);
lineSegment = new LineSegment(controlPoints[1], true);
pathFigure.Segments.Add(lineSegment);
controlPoints = BezierHelper.getControlPoints(0.4, p3, p4);
bezierSegment = new QuadraticBezierSegment(p3, controlPoints[0], true);
pathFigure.Segments.Add(bezierSegment);
Path path = new Path();
path.Stroke = new SolidColorBrush(Color.FromRgb(0, 0, 0));
path.Data = pathGeometry;
canvas.Children.Add(path);
}