void CreatePath() { droidGraphics.Path path = null; if (points != null && points.Count > 1) { path = new droidGraphics.Path(); path.SetFillType(fillType); path.MoveTo(pixelsPerDip * (float)points[0].X, pixelsPerDip * (float)points[0].Y); for (int index = 1; index < points.Count; index++) { path.LineTo(pixelsPerDip * (float)points[index].X, pixelsPerDip * (float)points[index].Y); } if (this is PolygonDrawableView) { path.Close(); } } Path = path; }
public void DrawPath(IEnumerable<PathOperation> ops, Pen pen = null, BaseBrush brush = null) { using (var path = new Path()) { var bb = new BoundingBoxBuilder(); foreach (var op in ops) { var moveTo = op as MoveTo; if (moveTo != null) { var start = moveTo.Start; var end = moveTo.End; path.MoveTo((float) start.X, (float) start.Y); bb.Add(start); bb.Add(end); continue; } var lineTo = op as LineTo; if (lineTo != null) { var start = lineTo.Start; var end = lineTo.End; path.LineTo((float) start.X, (float) start.Y); path.LineTo((float) end.X, (float) end.Y); bb.Add(start); bb.Add(end); continue; } var at = op as ArcTo; if (at != null) { var p = at.Point; path.LineTo((float) p.X, (float) p.Y); bb.Add(p); continue; } var curveTo = op as CurveTo; if (curveTo != null) { var end = curveTo.End; var firstControlPoint = curveTo.FirstControlPoint; var secondControlPoint = curveTo.SecondControlPoint; path.CubicTo((float) firstControlPoint.X, (float) firstControlPoint.Y, (float) secondControlPoint.X, (float) secondControlPoint.Y, (float) end.X, (float) end.Y); bb.Add(firstControlPoint); bb.Add(secondControlPoint); bb.Add(end); continue; } var cp = op as ClosePath; if (cp != null) { path.Close(); continue; } throw new NotSupportedException("Path Op " + op); } var frame = bb.BoundingBox; if (brush != null) { var solidBrush = brush as SolidBrush; if (solidBrush != null) { path.SetFillType(GetPathFillType(((SolidBrush)brush).FillMode)); } var brushPaint = GetBrushPaint(brush, frame); graphics.DrawPath(path, brushPaint); } if (pen != null) { var penPaint = GetPenPaint(pen); graphics.DrawPath(path, penPaint); } } }
public static APath ToAPath(this Geometry geometry, Context context) { APath path = new APath(); float density = context.Resources.DisplayMetrics.Density; if (geometry is LineGeometry) { LineGeometry lineGeometry = geometry as LineGeometry; path.MoveTo( density * (float)lineGeometry.StartPoint.X, density * (float)lineGeometry.StartPoint.Y); path.LineTo( density * (float)lineGeometry.EndPoint.X, density * (float)lineGeometry.EndPoint.Y); } else if (geometry is RectangleGeometry) { FormsRectangle rect = (geometry as RectangleGeometry).Rect; path.AddRect( density * (float)rect.Left, density * (float)rect.Top, density * (float)rect.Right, density * (float)rect.Bottom, APath.Direction.Cw); } else if (geometry is EllipseGeometry) { EllipseGeometry ellipseGeometry = geometry as EllipseGeometry; path.AddOval(new RectF( density * (float)(ellipseGeometry.Center.X - ellipseGeometry.RadiusX), density * (float)(ellipseGeometry.Center.Y - ellipseGeometry.RadiusY), density * (float)(ellipseGeometry.Center.X + ellipseGeometry.RadiusX), density * (float)(ellipseGeometry.Center.Y + ellipseGeometry.RadiusY)), APath.Direction.Cw); } else if (geometry is GeometryGroup) { GeometryGroup geometryGroup = geometry as GeometryGroup; path.SetFillType(geometryGroup.FillRule == FillRule.Nonzero ? APath.FillType.Winding : APath.FillType.EvenOdd); foreach (Geometry child in geometryGroup.Children) { APath childPath = child.ToAPath(context); path.AddPath(childPath); } } else if (geometry is PathGeometry) { PathGeometry pathGeometry = geometry as PathGeometry; path.SetFillType(pathGeometry.FillRule == FillRule.Nonzero ? APath.FillType.Winding : APath.FillType.EvenOdd); foreach (PathFigure pathFigure in pathGeometry.Figures) { path.MoveTo( density * (float)pathFigure.StartPoint.X, density * (float)pathFigure.StartPoint.Y); Point lastPoint = pathFigure.StartPoint; foreach (PathSegment pathSegment in pathFigure.Segments) { // LineSegment if (pathSegment is LineSegment) { LineSegment lineSegment = pathSegment as LineSegment; path.LineTo( density * (float)lineSegment.Point.X, density * (float)lineSegment.Point.Y); lastPoint = lineSegment.Point; } // PolylineSegment else if (pathSegment is PolyLineSegment) { PolyLineSegment polylineSegment = pathSegment as PolyLineSegment; PointCollection points = polylineSegment.Points; for (int i = 0; i < points.Count; i++) { path.LineTo( density * (float)points[i].X, density * (float)points[i].Y); } lastPoint = points[points.Count - 1]; } // BezierSegment else if (pathSegment is BezierSegment) { BezierSegment bezierSegment = pathSegment as BezierSegment; path.CubicTo( density * (float)bezierSegment.Point1.X, density * (float)bezierSegment.Point1.Y, density * (float)bezierSegment.Point2.X, density * (float)bezierSegment.Point2.Y, density * (float)bezierSegment.Point3.X, density * (float)bezierSegment.Point3.Y); lastPoint = bezierSegment.Point3; } // PolyBezierSegment else if (pathSegment is PolyBezierSegment) { PolyBezierSegment polyBezierSegment = pathSegment as PolyBezierSegment; PointCollection points = polyBezierSegment.Points; if (points.Count >= 3) { for (int i = 0; i < points.Count; i += 3) { path.CubicTo( density * (float)points[i + 0].X, density * (float)points[i + 0].Y, density * (float)points[i + 1].X, density * (float)points[i + 1].Y, density * (float)points[i + 2].X, density * (float)points[i + 2].Y); } } lastPoint = points[points.Count - 1]; } // QuadraticBezierSegment else if (pathSegment is QuadraticBezierSegment) { QuadraticBezierSegment bezierSegment = pathSegment as QuadraticBezierSegment; path.QuadTo( density * (float)bezierSegment.Point1.X, density * (float)bezierSegment.Point1.Y, density * (float)bezierSegment.Point2.X, density * (float)bezierSegment.Point2.Y); lastPoint = bezierSegment.Point2; } // PolyQuadraticBezierSegment else if (pathSegment is PolyQuadraticBezierSegment) { PolyQuadraticBezierSegment polyBezierSegment = pathSegment as PolyQuadraticBezierSegment; PointCollection points = polyBezierSegment.Points; if (points.Count >= 2) { for (int i = 0; i < points.Count; i += 2) { path.QuadTo( density * (float)points[i + 0].X, density * (float)points[i + 0].Y, density * (float)points[i + 1].X, density * (float)points[i + 1].Y); } } lastPoint = points[points.Count - 1]; } // ArcSegment else if (pathSegment is ArcSegment) { ArcSegment arcSegment = pathSegment as ArcSegment; List <Point> points = new List <Point>(); GeometryHelper.FlattenArc( points, lastPoint, arcSegment.Point, arcSegment.Size.Width, arcSegment.Size.Height, arcSegment.RotationAngle, arcSegment.IsLargeArc, arcSegment.SweepDirection == SweepDirection.CounterClockwise, 1); for (int i = 0; i < points.Count; i++) { path.LineTo( density * (float)points[i].X, density * (float)points[i].Y); } if (points.Count > 0) { lastPoint = points[points.Count - 1]; } } } if (pathFigure.IsClosed) { path.Close(); } } } return(path); }
private void DrawTriangle(Canvas c, float startAngle, float sweepAngle, Rect bounds) { if (mShowArrow) { if (mArrow == null) { mArrow = new Path(); mArrow.SetFillType(Path.FillType.EvenOdd); } else { mArrow.Reset(); } float x = (float)(RingCenterRadius * Math.Cos(0) + bounds.ExactCenterX()); float y = (float)(RingCenterRadius * Math.Sin(0) + bounds.ExactCenterY()); mArrow.MoveTo(0, 0); mArrow.LineTo((mArrowWidth) * mArrowScale, 0); mArrow.LineTo(((mArrowWidth) * mArrowScale / 2), (mArrowHeight * mArrowScale)); mArrow.Offset(x - ((mArrowWidth) * mArrowScale / 2), y); mArrow.Close(); mArrowPaint.Color = mColors[mColorIndex]; c.Rotate(startAngle + (sweepAngle < 0 ? 0 : sweepAngle) - ARROW_OFFSET_ANGLE, bounds.ExactCenterX(), bounds.ExactCenterY()); c.DrawPath(mArrow, mArrowPaint); } }
public void DrawPath(IEnumerable <PathOperation> ops, Pen pen = null, BaseBrush brush = null) { using (var path = new Path()) { var bb = new BoundingBoxBuilder(); foreach (var op in ops) { var moveTo = op as MoveTo; if (moveTo != null) { var start = moveTo.Start; var end = moveTo.End; path.MoveTo((float)start.X, (float)start.Y); bb.Add(start); bb.Add(end); continue; } var lineTo = op as LineTo; if (lineTo != null) { var start = lineTo.Start; var end = lineTo.End; path.LineTo((float)start.X, (float)start.Y); path.LineTo((float)end.X, (float)end.Y); bb.Add(start); bb.Add(end); continue; } var at = op as ArcTo; if (at != null) { var p = at.Point; path.LineTo((float)p.X, (float)p.Y); bb.Add(p); continue; } var curveTo = op as CurveTo; if (curveTo != null) { var end = curveTo.End; var firstControlPoint = curveTo.FirstControlPoint; var secondControlPoint = curveTo.SecondControlPoint; path.CubicTo((float)firstControlPoint.X, (float)firstControlPoint.Y, (float)secondControlPoint.X, (float)secondControlPoint.Y, (float)end.X, (float)end.Y); bb.Add(firstControlPoint); bb.Add(secondControlPoint); bb.Add(end); continue; } var cp = op as ClosePath; if (cp != null) { path.Close(); continue; } throw new NotSupportedException("Path Op " + op); } var frame = bb.BoundingBox; if (brush != null) { var solidBrush = brush as SolidBrush; if (solidBrush != null) { path.SetFillType(GetPathFillType(((SolidBrush)brush).FillMode)); } var brushPaint = GetBrushPaint(brush, frame); graphics.DrawPath(path, brushPaint); } if (pen != null) { var penPaint = GetPenPaint(pen); graphics.DrawPath(path, penPaint); } } }
void SetFillRule(droidGraphics.Path path, FillRule fillRule) { path.SetFillType(fillRule == FillRule.Nonzero ? droidGraphics.Path.FillType.Winding : droidGraphics.Path.FillType.EvenOdd); }