void RenderAlternatePath(XGraphics gfx)
{
gfx.TranslateTransform(15, 20);
XPen pen = new XPen(XColors.Navy, 2.5);
// Alternate fill mode
XGraphicsPath path = new XGraphicsPath();
path.FillMode = XFillMode.Alternate;
path.AddLine(10, 130, 10, 40);
path.AddBeziers(new XPoint[]{new XPoint(10, 40), new XPoint(30, 0), new XPoint(40, 20), new XPoint(60, 40),
new XPoint(80, 60), new XPoint(100, 60), new XPoint(120, 40)});
path.AddLine(120, 40, 120, 130);
path.CloseFigure();
path.AddEllipse(40, 80, 50, 40);
gfx.DrawPath(pen, XBrushes.DarkOrange, path);
}
public override void RenderPage(XGraphics gfx)
{
base.RenderPage(gfx);
XGraphicsPath path = new XGraphicsPath();
path.AddLine(50, 150, 50, 100);
path.AddArc(50, 50, 100, 100, -180, 180);
path.AddLine(150, 70, 200, 70);
path.AddLine(200, 70, 200, 150);
path.CloseFigure();
XPen pen = new XPen(XColors.Red, 50);
path.Widen(pen, new XMatrix(), 3);
path.FillMode = this.properties.General.FillMode;
gfx.DrawPath(properties.Pen2.Pen, properties.Brush2.Brush, path);
}
void RenderClosedPath(XGraphics gfx)
{
gfx.TranslateTransform(15, 150);
XPen pen = new XPen(XColors.Navy, Math.PI);
pen.DashStyle = XDashStyle.Dash;
XGraphicsPath path = new XGraphicsPath();
path.AddLine(10, 120, 50, 60);
path.AddArc(50, 20, 110, 80, 180, 180);
path.AddLine(160, 60, 220, 100);
path.CloseFigure();
gfx.DrawPath(pen, path);
}
public override void RenderPage(XGraphics gfx)
{
base.RenderPage(gfx);
XGraphicsPath path = new XGraphicsPath();
path.AddLine(50, 150, 50, 100);
path.AddArc(50, 50, 100, 100, -180, 180);
path.AddLine(150, 70, 200, 70);
path.AddLine(200, 70, 200, 150);
path.CloseFigure();
path.Flatten(XMatrix.Identity, 0.1);
gfx.DrawPath(properties.Pen2.Pen, properties.Brush2.Brush, path);
}
/// <summary>
///
/// </summary>
/// <param name="pg"></param>
/// <param name="dx"></param>
/// <param name="dy"></param>
/// <param name="scale"></param>
/// <returns></returns>
public static PDF.XGraphicsPath ToXGraphicsPath(this IPathGeometry pg, double dx, double dy, Func <double, double> scale)
{
var gp = new PDF.XGraphicsPath()
{
FillMode = pg.FillRule == FillRule.EvenOdd ? PDF.XFillMode.Alternate : PDF.XFillMode.Winding
};
foreach (var pf in pg.Figures)
{
var startPoint = pf.StartPoint;
foreach (var segment in pf.Segments)
{
if (segment is IArcSegment arcSegment)
{
#if WPF
var point1 = new PDF.XPoint(
scale(startPoint.X + dx),
scale(startPoint.Y + dy));
var point2 = new PDF.XPoint(
scale(arcSegment.Point.X + dx),
scale(arcSegment.Point.Y + dy));
var size = new PDF.XSize(
scale(arcSegment.Size.Width),
scale(arcSegment.Size.Height));
gp.AddArc(
point1,
point2,
size, arcSegment.RotationAngle, arcSegment.IsLargeArc,
arcSegment.SweepDirection == SweepDirection.Clockwise ? PDF.XSweepDirection.Clockwise : PDF.XSweepDirection.Counterclockwise);
startPoint = arcSegment.Point;
#else
throw new NotSupportedException("Not supported segment type: " + segment.GetType());
// TODO: Convert WPF/SVG elliptical arc segment format to GDI+ bezier curves.
//startPoint = arcSegment.Point;
#endif
}
else if (segment is ICubicBezierSegment cubicBezierSegment)
{
gp.AddBezier(
scale(startPoint.X + dx),
scale(startPoint.Y + dy),
scale(cubicBezierSegment.Point1.X + dx),
scale(cubicBezierSegment.Point1.Y + dy),
scale(cubicBezierSegment.Point2.X + dx),
scale(cubicBezierSegment.Point2.Y + dy),
scale(cubicBezierSegment.Point3.X + dx),
scale(cubicBezierSegment.Point3.Y + dy));
startPoint = cubicBezierSegment.Point3;
}
else if (segment is ILineSegment)
{
var lineSegment = segment as ILineSegment;
gp.AddLine(
scale(startPoint.X + dx),
scale(startPoint.Y + dy),
scale(lineSegment.Point.X + dx),
scale(lineSegment.Point.Y + dy));
startPoint = lineSegment.Point;
}
else if (segment is IPolyCubicBezierSegment polyCubicBezierSegment)
{
if (polyCubicBezierSegment.Points.Length >= 3)
{
gp.AddBezier(
scale(startPoint.X + dx),
scale(startPoint.Y + dy),
scale(polyCubicBezierSegment.Points[0].X + dx),
scale(polyCubicBezierSegment.Points[0].Y + dy),
scale(polyCubicBezierSegment.Points[1].X + dx),
scale(polyCubicBezierSegment.Points[1].Y + dy),
scale(polyCubicBezierSegment.Points[2].X + dx),
scale(polyCubicBezierSegment.Points[2].Y + dy));
}
if (polyCubicBezierSegment.Points.Length > 3 &&
polyCubicBezierSegment.Points.Length % 3 == 0)
{
for (int i = 3; i < polyCubicBezierSegment.Points.Length; i += 3)
{
gp.AddBezier(
scale(polyCubicBezierSegment.Points[i - 1].X + dx),
scale(polyCubicBezierSegment.Points[i - 1].Y + dy),
scale(polyCubicBezierSegment.Points[i].X + dx),
scale(polyCubicBezierSegment.Points[i].Y + dy),
scale(polyCubicBezierSegment.Points[i + 1].X + dx),
scale(polyCubicBezierSegment.Points[i + 1].Y + dy),
scale(polyCubicBezierSegment.Points[i + 2].X + dx),
scale(polyCubicBezierSegment.Points[i + 2].Y + dy));
}
}
startPoint = polyCubicBezierSegment.Points.Last();
}
else if (segment is IPolyLineSegment polyLineSegment)
{
if (polyLineSegment.Points.Length >= 1)
{
gp.AddLine(
scale(startPoint.X + dx),
scale(startPoint.Y + dy),
scale(polyLineSegment.Points[0].X + dx),
scale(polyLineSegment.Points[0].Y + dy));
}
if (polyLineSegment.Points.Length > 1)
{
for (int i = 1; i < polyLineSegment.Points.Length; i++)
{
gp.AddLine(
scale(polyLineSegment.Points[i - 1].X + dx),
scale(polyLineSegment.Points[i - 1].Y + dy),
scale(polyLineSegment.Points[i].X + dx),
scale(polyLineSegment.Points[i].Y + dy));
}
}
startPoint = polyLineSegment.Points.Last();
}
else if (segment is IPolyQuadraticBezierSegment polyQuadraticSegment)
{
if (polyQuadraticSegment.Points.Length >= 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.Length > 2 &&
polyQuadraticSegment.Points.Length % 2 == 0)
{
for (int i = 3; i < polyQuadraticSegment.Points.Length; 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 IQuadraticBezierSegment quadraticBezierSegment)
{
var p1 = startPoint;
var p2 = quadraticBezierSegment.Point1;
var p3 = quadraticBezierSegment.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 = quadraticBezierSegment.Point2;
}
else
{
throw new NotSupportedException("Not supported segment type: " + segment.GetType());
}
}
if (pf.IsClosed)
{
gp.CloseFigure();
}
else
{
gp.StartFigure();
}
}
return(gp);
}
/// <summary>
/// Draws an alternating and a winding path.
/// </summary>
void DrawPathAlternateAndWinding(XGraphics gfx, int number)
{
BeginBox(gfx, number, "DrawPath (alternate / winding)");
XPen pen = new XPen(XColors.Navy, 2.5);
// Alternate fill mode
XGraphicsPath path = new XGraphicsPath();
path.FillMode = XFillMode.Alternate;
path.AddLine(10, 130, 10, 40);
path.AddBeziers(new XPoint[]{new XPoint(10, 40), new XPoint(30, 0), new XPoint(40, 20), new XPoint(60, 40),
new XPoint(80, 60), new XPoint(100, 60), new XPoint(120, 40)});
path.AddLine(120, 40, 120, 130);
path.CloseFigure();
path.AddEllipse(40, 80, 50, 40);
gfx.DrawPath(pen, XBrushes.DarkOrange, path);
// Winding fill mode
path = new XGraphicsPath();
path.FillMode = XFillMode.Winding;
path.AddLine(130, 130, 130, 40);
path.AddBeziers(new XPoint[]{new XPoint(130, 40), new XPoint(150, 0), new XPoint(160, 20), new XPoint(180, 40),
new XPoint(200, 60), new XPoint(220, 60), new XPoint(240, 40)});
path.AddLine(240, 40, 240, 130);
path.CloseFigure();
path.AddEllipse(160, 80, 50, 40);
gfx.DrawPath(pen, XBrushes.DarkOrange, path);
EndBox(gfx);
}
/// <summary>
/// Strokes a closed path.
/// </summary>
void DrawPathClosed(XGraphics gfx, int number)
{
BeginBox(gfx, number, "DrawPath (closed)");
XPen pen = new XPen(XColors.Navy, Math.PI);
pen.DashStyle = XDashStyle.Dash;
XGraphicsPath path = new XGraphicsPath();
path.AddLine(10, 120, 50, 60);
path.AddArc(50, 20, 110, 80, 180, 180);
path.AddLine(160, 60, 220, 100);
path.CloseFigure();
gfx.DrawPath(pen, path);
EndBox(gfx);
}
public static PDF.XGraphicsPath ToXGraphicsPath(this IPathGeometry pg, Func <double, double> scale)
{
var gp = new PDF.XGraphicsPath()
{
FillMode = pg.FillRule == FillRule.EvenOdd ? PDF.XFillMode.Alternate : PDF.XFillMode.Winding
};
foreach (var pf in pg.Figures)
{
var startPoint = pf.StartPoint;
foreach (var segment in pf.Segments)
{
if (segment is IArcSegment arcSegment)
{
#if WPF
var point1 = new PDF.XPoint(
scale(startPoint.X),
scale(startPoint.Y));
var point2 = new PDF.XPoint(
scale(arcSegment.Point.X),
scale(arcSegment.Point.Y));
var size = new PDF.XSize(
scale(arcSegment.Size.Width),
scale(arcSegment.Size.Height));
gp.AddArc(
point1,
point2,
size, arcSegment.RotationAngle, arcSegment.IsLargeArc,
arcSegment.SweepDirection == SweepDirection.Clockwise ? PDF.XSweepDirection.Clockwise : PDF.XSweepDirection.Counterclockwise);
startPoint = arcSegment.Point;
#else
// TODO: Convert WPF/SVG elliptical arc segment format to GDI+ bezier curves.
startPoint = arcSegment.Point;
#endif
}
else if (segment is ICubicBezierSegment cubicBezierSegment)
{
gp.AddBezier(
scale(startPoint.X),
scale(startPoint.Y),
scale(cubicBezierSegment.Point1.X),
scale(cubicBezierSegment.Point1.Y),
scale(cubicBezierSegment.Point2.X),
scale(cubicBezierSegment.Point2.Y),
scale(cubicBezierSegment.Point3.X),
scale(cubicBezierSegment.Point3.Y));
startPoint = cubicBezierSegment.Point3;
}
else if (segment is ILineSegment)
{
var lineSegment = segment as ILineSegment;
gp.AddLine(
scale(startPoint.X),
scale(startPoint.Y),
scale(lineSegment.Point.X),
scale(lineSegment.Point.Y));
startPoint = lineSegment.Point;
}
else if (segment is IQuadraticBezierSegment quadraticBezierSegment)
{
var p1 = startPoint;
var p2 = quadraticBezierSegment.Point1;
var p3 = quadraticBezierSegment.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),
scale(y1),
scale(x2),
scale(y2),
scale(x3),
scale(y3),
scale(x4),
scale(y4));
startPoint = quadraticBezierSegment.Point2;
}
else
{
throw new NotSupportedException("Not supported segment type: " + segment.GetType());
}
}
if (pf.IsClosed)
{
gp.CloseFigure();
}
else
{
gp.StartFigure();
}
}
return(gp);
}
internal void Render(XUnit x, XUnit y, XUnit width, XUnit height, RoundedCorner roundedCorner)
{
// If there is no rounded corner, we can use the usual Render method.
if (roundedCorner == RoundedCorner.None)
{
Render(x, y, width, height);
return;
}
if (_shading == null || _brush == null)
return;
XGraphicsPath path = new XGraphicsPath();
switch (roundedCorner)
{
case RoundedCorner.TopLeft:
path.AddArc(new XRect(x, y, width * 2, height * 2), 180, 90); // Error in CORE: _corePath.AddArc().
path.AddLine(new XPoint(x + width, y), new XPoint(x + width, y + height));
break;
case RoundedCorner.TopRight:
path.AddArc(new XRect(x - width, y, width * 2, height * 2), 270, 90); // Error in CORE: _corePath.AddArc().
path.AddLine(new XPoint(x + width, y + height), new XPoint(x, y + height));
break;
case RoundedCorner.BottomRight:
path.AddArc(new XRect(x - width, y - height, width * 2, height * 2), 0, 90); // Error in CORE: _corePath.AddArc().
path.AddLine(new XPoint(x, y + height), new XPoint(x, y));
break;
case RoundedCorner.BottomLeft:
path.AddArc(new XRect(x, y - height, width * 2, height * 2), 90, 90); // Error in CORE: _corePath.AddArc().
path.AddLine(new XPoint(x, y), new XPoint(x + width, y));
break;
}
path.CloseFigure();
_gfx.DrawPath(_brush, path);
}
/// <summary>
/// Draws the marker given through rendererInfo at the specified position. Position specifies
/// the center of the marker.
/// </summary>
internal static void Draw(XGraphics graphics, XPoint pos, MarkerRendererInfo rendererInfo)
{
if (rendererInfo.MarkerStyle == MarkerStyle.None)
return;
double size = rendererInfo.MarkerSize;
double size2 = size / 2;
double x0, y0, x1, y1;
double g;
XPen foreground = new XPen(rendererInfo.MarkerForegroundColor, 0.5);
XBrush background = new XSolidBrush(rendererInfo.MarkerBackgroundColor);
XGraphicsPath gp = new XGraphicsPath();
switch (rendererInfo.MarkerStyle)
{
case MarkerStyle.Square:
x0 = pos.X - size2;
y0 = pos.Y - size2;
x1 = pos.X + size2;
y1 = pos.Y + size2;
gp.AddLine(x0, y0, x1, y0);
gp.AddLine(x1, y0, x1, y1);
gp.AddLine(x1, y1, x0, y1);
gp.AddLine(x0, y1, x0, y0);
break;
case MarkerStyle.Diamond:
gp.AddLine(x1 = pos.X + size2, pos.Y, pos.X, y0 = pos.Y - size2);
gp.AddLine(pos.X, y0, x0 = pos.X - size2, pos.Y);
gp.AddLine(x0, pos.Y, pos.X, y1 = pos.Y + size2);
gp.AddLine(pos.X, y1, x1, pos.Y);
break;
case MarkerStyle.Triangle:
y0 = pos.Y + size / 2;
y1 = pos.Y - size / 2;
g = Math.Sqrt(size * size * 4 / 3) / 2;
gp.AddLine(pos.X, y1, pos.X + g, y0);
gp.AddLine(pos.X + g, y0, pos.X - g, y0);
gp.AddLine(pos.X - g, y0, pos.X, y1);
break;
case MarkerStyle.Plus:
g = size2 / 4;
gp.AddLine(pos.X - size2, pos.Y + g, pos.X - g, pos.Y + g);
gp.AddLine(pos.X - g, pos.Y + g, pos.X - g, pos.Y + size2);
gp.AddLine(pos.X - g, pos.Y + size2, pos.X + g, pos.Y + size2);
gp.AddLine(pos.X + g, pos.Y + size2, pos.X + g, pos.Y + g);
gp.AddLine(pos.X + g, pos.Y + g, pos.X + size2, pos.Y + g);
gp.AddLine(pos.X + size2, pos.Y + g, pos.X + size2, pos.Y - g);
gp.AddLine(pos.X + size2, pos.Y - g, pos.X + g, pos.Y - g);
gp.AddLine(pos.X + g, pos.Y - g, pos.X + g, pos.Y - size2);
gp.AddLine(pos.X + g, pos.Y - size2, pos.X - g, pos.Y - size2);
gp.AddLine(pos.X - g, pos.Y - size2, pos.X - g, pos.Y - g);
gp.AddLine(pos.X - g, pos.Y - g, pos.X - size2, pos.Y - g);
gp.AddLine(pos.X - size2, pos.Y - g, pos.X - size2, pos.Y + g);
break;
case MarkerStyle.Circle:
case MarkerStyle.Dot:
x0 = pos.X - size2;
y0 = pos.Y - size2;
gp.AddEllipse(x0, y0, size, size);
break;
case MarkerStyle.Dash:
x0 = pos.X - size2;
y0 = pos.Y - size2 / 3;
x1 = pos.X + size2;
y1 = pos.Y + size2 / 3;
gp.AddLine(x0, y0, x1, y0);
gp.AddLine(x1, y0, x1, y1);
gp.AddLine(x1, y1, x0, y1);
gp.AddLine(x0, y1, x0, y0);
break;
case MarkerStyle.X:
g = size / 4;
gp.AddLine(pos.X - size2 + g, pos.Y - size2, pos.X, pos.Y - g);
gp.AddLine(pos.X, pos.Y - g, pos.X + size2 - g, pos.Y - size2);
gp.AddLine(pos.X + size2 - g, pos.Y - size2, pos.X + size2, pos.Y - size2 + g);
gp.AddLine(pos.X + size2, pos.Y - size2 + g, pos.X + g, pos.Y);
gp.AddLine(pos.X + g, pos.Y, pos.X + size2, pos.Y + size2 - g);
gp.AddLine(pos.X + size2, pos.Y + size2 - g, pos.X + size2 - g, pos.Y + size2);
gp.AddLine(pos.X + size2 - g, pos.Y + size2, pos.X, pos.Y + g);
gp.AddLine(pos.X, pos.Y + g, pos.X - size2 + g, pos.Y + size2);
gp.AddLine(pos.X - size2 + g, pos.Y + size2, pos.X - size2, pos.Y + size2 - g);
gp.AddLine(pos.X - size2, pos.Y + size2 - g, pos.X - g, pos.Y);
gp.AddLine(pos.X - g, pos.Y, pos.X - size2, pos.Y - size2 + g);
break;
case MarkerStyle.Star:
{
XPoint[] points = new XPoint[10];
double radStep = 2 * Math.PI / 5;
double outerCircle = size / 2;
double innerCircle = size / 5;
// outer circle
double rad = -(Math.PI / 2); // 90°
for (int idx = 0; idx < 10; idx += 2)
{
points[idx].X = pos.X + outerCircle * Math.Cos(rad);
points[idx].Y = pos.Y + outerCircle * Math.Sin(rad);
rad += radStep;
}
// inner circle
rad = -(Math.PI / 4); // 45°
double x = innerCircle * Math.Cos(rad);
double y = innerCircle * Math.Sin(rad);
points[1].X = pos.X + x;
points[1].Y = pos.Y + y;
points[9].X = pos.X - x;
points[9].Y = pos.Y + y;
rad += radStep;
x = innerCircle * Math.Cos(rad);
y = innerCircle * Math.Sin(rad);
points[3].X = pos.X + x;
points[3].Y = pos.Y + y;
points[7].X = pos.X - x;
points[7].Y = pos.Y + y;
rad += radStep;
y = innerCircle * Math.Sin(rad);
points[5].X = pos.X;
points[5].Y = pos.Y + y;
gp.AddLines(points);
}
break;
}
gp.CloseFigure();
if (rendererInfo.MarkerStyle != MarkerStyle.Dot)
{
graphics.DrawPath(background, gp);
graphics.DrawPath(foreground, gp);
}
}
void RenderWindingPath(XGraphics gfx)
{
gfx.TranslateTransform(15, 150);
XPen pen = new XPen(XColors.Navy, 2.5);
// Winding fill mode
XGraphicsPath path = new XGraphicsPath();
path = new XGraphicsPath();
path.FillMode = XFillMode.Winding;
path.AddLine(130, 130, 130, 40);
path.AddBeziers(new XPoint[]{new XPoint(130, 40), new XPoint(150, 0), new XPoint(160, 20), new XPoint(180, 40),
new XPoint(200, 60), new XPoint(220, 60), new XPoint(240, 40)});
path.AddLine(240, 40, 240, 130);
path.CloseFigure();
path.AddEllipse(160, 80, 50, 40);
gfx.DrawPath(pen, XBrushes.DarkOrange, 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 Core2D.XPathGeometry pg, double dx, double dy, Func<double, double> scale)
{
var gp = new XGraphicsPath();
gp.FillMode = pg.FillRule == Core2D.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 Core2D.XArcSegment)
{
#if CORE
//var arcSegment = segment as Core2D.XArcSegment;
// TODO: Convert WPF/SVG elliptical arc segment format to GDI+ bezier curves.
//startPoint = arcSegment.Point;
#endif
#if WPF
var arcSegment = segment as Core2D.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 == Core2D.XSweepDirection.Clockwise ? XSweepDirection.Clockwise : XSweepDirection.Counterclockwise);
startPoint = arcSegment.Point;
#endif
}
else if (segment is Core2D.XBezierSegment)
{
var bezierSegment = segment as Core2D.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 Core2D.XLineSegment)
{
var lineSegment = segment as Core2D.XLineSegment;
gp.AddLine(
scale(startPoint.X),
scale(startPoint.Y),
scale(lineSegment.Point.X),
scale(lineSegment.Point.Y));
startPoint = lineSegment.Point;
}
else if (segment is Core2D.XPolyBezierSegment)
{
var polyBezierSegment = segment as Core2D.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 Core2D.XPolyLineSegment)
{
var polyLineSegment = segment as Core2D.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 Core2D.XPolyQuadraticBezierSegment)
{
var polyQuadraticSegment = segment as Core2D.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 Core2D.XQuadraticBezierSegment)
{
var qbezierSegment = segment as Core2D.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;
}
