public override void RenderPage(XGraphics gfx)
{
base.RenderPage(gfx);
DrawGridlines(gfx);
// Create a new graphical path
XGraphicsPath path = new XGraphicsPath();
XSize size = new XSize(90, 140);
double rotationAngle = 130;
path.AddArc(new XPoint(100, 100), new XPoint(200, 200), size, rotationAngle, false, System.Windows.Media.SweepDirection.Clockwise);
path.StartFigure();
path.AddArc(new XPoint(400, 100), new XPoint(500, 200), size, rotationAngle, false, System.Windows.Media.SweepDirection.Counterclockwise);
path.StartFigure();
path.AddArc(new XPoint(100, 300), new XPoint(200, 400), size, rotationAngle, true, System.Windows.Media.SweepDirection.Clockwise);
path.StartFigure();
path.AddArc(new XPoint(400, 300), new XPoint(500, 400), size, rotationAngle, true, System.Windows.Media.SweepDirection.Counterclockwise);
path.StartFigure();
#if DEBUG_
gfx.WriteComment("PathArcSegment");
#endif
gfx.DrawPath(XPens.Red, path);
}
public override void LineTo(double x, double y)
{
var point = new XPoint(x, y);
CurrentPath.StartFigure();
CurrentPath.AddLine(CurrentPathPoint, point);
CurrentPath.CloseFigure();
CurrentPathPoint = point;
}
public static XGraphicsPath GetPath(PathEx pathEx)
{
var path = new XGraphicsPath();
path.FillMode = (XFillMode)Enum.Parse(typeof(XFillMode), pathEx.FillMode.ToString());
path.StartFigure();
var start = new XPoint();
foreach (var segment in pathEx.Segments)
{
switch (segment.Type)
{
case PathEx.SegmentType.MoveTo:
start = PdfConverter.Convert(segment.Point1.ToPoint());
break;
case PathEx.SegmentType.LineTo:
var end = PdfConverter.Convert(segment.Point1.ToPoint());
path.AddLine(start, end);
start = end;
break;
case PathEx.SegmentType.BezierTo:
var p1 = PdfConverter.Convert(segment.Point1.ToPoint());
var p2 = PdfConverter.Convert(segment.Point2.ToPoint());
var bEnd = PdfConverter.Convert(segment.Point3.ToPoint());
path.AddBezier(start, p1, p2, bEnd);
start = bEnd;
break;
case PathEx.SegmentType.FigureEnd:
if (segment.Closed)
{
path.CloseFigure();
}
break;
}
}
return(path);
}
internal static void SvgPath2Pdf(SvgPath element, XGraphics graphics)
{
if (element.Display == "none")
{
return;
}
var path = new XGraphicsPath {
FillMode = XFillMode.Winding
};
foreach (var segment in element.PathData)
{
switch (segment)
{
case SvgMoveToSegment svgMoveToSegment:
Console.WriteLine($"{segment.GetType()}, start: {svgMoveToSegment.Start}, end: {svgMoveToSegment.End}");
path.StartFigure();
break;
case SvgCubicCurveSegment svgCubicCurveSegment:
Console.WriteLine(
$"{segment.GetType()}, start: {svgCubicCurveSegment.Start}, first control: {svgCubicCurveSegment.FirstControlPoint}, second control: {svgCubicCurveSegment.SecondControlPoint}, end: {svgCubicCurveSegment.End}");
path.AddBezier(ConvertHelper.Point2XPoint(svgCubicCurveSegment.Start),
ConvertHelper.Point2XPoint(svgCubicCurveSegment.FirstControlPoint),
ConvertHelper.Point2XPoint(svgCubicCurveSegment.SecondControlPoint),
ConvertHelper.Point2XPoint(svgCubicCurveSegment.End));
break;
case SvgQuadraticCurveSegment svgQuadraticCurveSegment:
Console.WriteLine($"{segment.GetType()}, start: {svgQuadraticCurveSegment.Start}, control: {svgQuadraticCurveSegment.ControlPoint}, end: {svgQuadraticCurveSegment.End}");
var(start, control1, control2, end) = MathHelper.Quadratic2Cubic(svgQuadraticCurveSegment.Start, svgQuadraticCurveSegment.ControlPoint, svgQuadraticCurveSegment.End);
path.AddBezier(ConvertHelper.Point2XPoint(start),
ConvertHelper.Point2XPoint(control1),
ConvertHelper.Point2XPoint(control2),
ConvertHelper.Point2XPoint(end));
break;
case SvgLineSegment svgLineSegment:
Console.WriteLine($"{segment.GetType()}, start: {svgLineSegment.Start}, end: {svgLineSegment.End}");
path.AddLine(ConvertHelper.Point2XPoint(svgLineSegment.Start), ConvertHelper.Point2XPoint(svgLineSegment.End));
break;
case SvgClosePathSegment svgClosePathSegment:
Console.WriteLine($"{segment.GetType()}, start: {svgClosePathSegment.Start}, end: {svgClosePathSegment.End}");
path.CloseFigure();
break;
default:
Console.WriteLine(segment.GetType());
break;
}
}
if (element.Fill != SvgPaintServer.None)
{
var brush = ConvertHelper.Fill2XBrush(element.Fill);
graphics.DrawPath(brush, path);
}
if (element.Stroke != null)
{
var pen = ConvertHelper.Stroke2XPen(element.Stroke, element.StrokeWidth, element.StrokeLineCap, element.StrokeLineJoin);
graphics.DrawPath(pen, path);
}
}
/// <summary>
///
/// </summary>
/// <param name="pg"></param>
/// <param name="dx"></param>
/// <param name="dy"></param>
/// <param name="scale"></param>
/// <returns></returns>
public static XGraphicsPath ToXGraphicsPath(this Test2d.XPathGeometry pg, double dx, double dy, Func <double, double> scale)
{
var gp = new XGraphicsPath();
gp.FillMode = pg.FillRule == Test2d.XFillRule.EvenOdd ? XFillMode.Alternate : XFillMode.Winding;
foreach (var pf in pg.Figures)
{
var startPoint = pf.StartPoint;
foreach (var segment in pf.Segments)
{
if (segment is Test2d.XArcSegment)
{
#if CORE
//var arcSegment = segment as Test2d.XArcSegment;
// TODO: Convert WPF/SVG elliptical arc segment format to GDI+ bezier curves.
//startPoint = arcSegment.Point;
#endif
#if WPF
var arcSegment = segment as Test2d.XArcSegment;
var point1 = new XPoint(
scale(startPoint.X),
scale(startPoint.Y));
var point2 = new XPoint(
scale(arcSegment.Point.X),
scale(arcSegment.Point.Y));
var size = new XSize(
scale(arcSegment.Size.Width),
scale(arcSegment.Size.Height));
gp.AddArc(
point1,
point2,
size, arcSegment.RotationAngle, arcSegment.IsLargeArc,
arcSegment.SweepDirection == Test2d.XSweepDirection.Clockwise ? XSweepDirection.Clockwise : XSweepDirection.Counterclockwise);
startPoint = arcSegment.Point;
#endif
}
else if (segment is Test2d.XBezierSegment)
{
var bezierSegment = segment as Test2d.XBezierSegment;
gp.AddBezier(
scale(startPoint.X),
scale(startPoint.Y),
scale(bezierSegment.Point1.X),
scale(bezierSegment.Point1.Y),
scale(bezierSegment.Point2.X),
scale(bezierSegment.Point2.Y),
scale(bezierSegment.Point3.X),
scale(bezierSegment.Point3.Y));
startPoint = bezierSegment.Point3;
}
else if (segment is Test2d.XLineSegment)
{
var lineSegment = segment as Test2d.XLineSegment;
gp.AddLine(
scale(startPoint.X),
scale(startPoint.Y),
scale(lineSegment.Point.X),
scale(lineSegment.Point.Y));
startPoint = lineSegment.Point;
}
else if (segment is Test2d.XPolyBezierSegment)
{
var polyBezierSegment = segment as Test2d.XPolyBezierSegment;
if (polyBezierSegment.Points.Count >= 3)
{
gp.AddBezier(
scale(startPoint.X),
scale(startPoint.Y),
scale(polyBezierSegment.Points[0].X),
scale(polyBezierSegment.Points[0].Y),
scale(polyBezierSegment.Points[1].X),
scale(polyBezierSegment.Points[1].Y),
scale(polyBezierSegment.Points[2].X),
scale(polyBezierSegment.Points[2].Y));
}
if (polyBezierSegment.Points.Count > 3 &&
polyBezierSegment.Points.Count % 3 == 0)
{
for (int i = 3; i < polyBezierSegment.Points.Count; i += 3)
{
gp.AddBezier(
scale(polyBezierSegment.Points[i - 1].X),
scale(polyBezierSegment.Points[i - 1].Y),
scale(polyBezierSegment.Points[i].X),
scale(polyBezierSegment.Points[i].Y),
scale(polyBezierSegment.Points[i + 1].X),
scale(polyBezierSegment.Points[i + 1].Y),
scale(polyBezierSegment.Points[i + 2].X),
scale(polyBezierSegment.Points[i + 2].Y));
}
}
startPoint = polyBezierSegment.Points.Last();
}
else if (segment is Test2d.XPolyLineSegment)
{
var polyLineSegment = segment as Test2d.XPolyLineSegment;
if (polyLineSegment.Points.Count >= 1)
{
gp.AddLine(
scale(startPoint.X),
scale(startPoint.Y),
scale(polyLineSegment.Points[0].X),
scale(polyLineSegment.Points[0].Y));
}
if (polyLineSegment.Points.Count > 1)
{
for (int i = 1; i < polyLineSegment.Points.Count; i++)
{
gp.AddLine(
scale(polyLineSegment.Points[i - 1].X),
scale(polyLineSegment.Points[i - 1].Y),
scale(polyLineSegment.Points[i].X),
scale(polyLineSegment.Points[i].Y));
}
}
startPoint = polyLineSegment.Points.Last();
}
else if (segment is Test2d.XPolyQuadraticBezierSegment)
{
var polyQuadraticSegment = segment as Test2d.XPolyQuadraticBezierSegment;
if (polyQuadraticSegment.Points.Count >= 2)
{
var p1 = startPoint;
var p2 = polyQuadraticSegment.Points[0];
var p3 = polyQuadraticSegment.Points[1];
double x1 = p1.X;
double y1 = p1.Y;
double x2 = p1.X + (2.0 * (p2.X - p1.X)) / 3.0;
double y2 = p1.Y + (2.0 * (p2.Y - p1.Y)) / 3.0;
double x3 = x2 + (p3.X - p1.X) / 3.0;
double y3 = y2 + (p3.Y - p1.Y) / 3.0;
double x4 = p3.X;
double y4 = p3.Y;
gp.AddBezier(
scale(x1 + dx),
scale(y1 + dy),
scale(x2 + dx),
scale(y2 + dy),
scale(x3 + dx),
scale(y3 + dy),
scale(x4 + dx),
scale(y4 + dy));
}
if (polyQuadraticSegment.Points.Count > 2 &&
polyQuadraticSegment.Points.Count % 2 == 0)
{
for (int i = 3; i < polyQuadraticSegment.Points.Count; i += 3)
{
var p1 = polyQuadraticSegment.Points[i - 1];
var p2 = polyQuadraticSegment.Points[i];
var p3 = polyQuadraticSegment.Points[i + 1];
double x1 = p1.X;
double y1 = p1.Y;
double x2 = p1.X + (2.0 * (p2.X - p1.X)) / 3.0;
double y2 = p1.Y + (2.0 * (p2.Y - p1.Y)) / 3.0;
double x3 = x2 + (p3.X - p1.X) / 3.0;
double y3 = y2 + (p3.Y - p1.Y) / 3.0;
double x4 = p3.X;
double y4 = p3.Y;
gp.AddBezier(
scale(x1 + dx),
scale(y1 + dy),
scale(x2 + dx),
scale(y2 + dy),
scale(x3 + dx),
scale(y3 + dy),
scale(x4 + dx),
scale(y4 + dy));
}
}
startPoint = polyQuadraticSegment.Points.Last();
}
else if (segment is Test2d.XQuadraticBezierSegment)
{
var qbezierSegment = segment as Test2d.XQuadraticBezierSegment;
var p1 = startPoint;
var p2 = qbezierSegment.Point1;
var p3 = qbezierSegment.Point2;
double x1 = p1.X;
double y1 = p1.Y;
double x2 = p1.X + (2.0 * (p2.X - p1.X)) / 3.0;
double y2 = p1.Y + (2.0 * (p2.Y - p1.Y)) / 3.0;
double x3 = x2 + (p3.X - p1.X) / 3.0;
double y3 = y2 + (p3.Y - p1.Y) / 3.0;
double x4 = p3.X;
double y4 = p3.Y;
gp.AddBezier(
scale(x1 + dx),
scale(y1 + dy),
scale(x2 + dx),
scale(y2 + dy),
scale(x3 + dx),
scale(y3 + dy),
scale(x4 + dx),
scale(y4 + dy));
startPoint = qbezierSegment.Point2;
}
else
{
throw new NotSupportedException("Not supported segment type: " + segment.GetType());
}
}
if (pf.IsClosed)
{
gp.CloseFigure();
}
else
{
gp.StartFigure();
}
}
return(gp);
}
public void StartFigure()
{
Path.StartFigure();
}