public override IPath GetPath()
{
PathBuilder pb = new PathBuilder();
pb.AddBezier(P1, P2, P3);
return(pb.Build().GenerateOutline(Width));
}
public static void isTest0()
{
System.IO.Directory.CreateDirectory("output");
using (Image <Rgba32> img = new Image <Rgba32>(1500, 500))
{
PathBuilder pathBuilder = new PathBuilder();
pathBuilder.SetOrigin(new PointF(500, 0));
pathBuilder.AddBezier(new PointF(50, 450), new PointF(200, 50), new PointF(300, 50), new PointF(450, 450));
// add more complex paths and shapes here.
IPath path = pathBuilder.Build();
// For production application we would recomend you create a FontCollection
// singleton and manually install the ttf fonts yourself as using SystemFonts
// can be expensive and you risk font existing or not existing on a deployment
// by deployment basis.
var font = SystemFonts.CreateFont("Arial", 39, FontStyle.Regular);
string text = "Hello World Hello World Hello World Hello World Hello World";
img.Mutate(ctx => ctx
.Fill(Rgba32.White) // white background image
.Draw(Rgba32.Gray, 3, path) // draw the path so we can see what the text is supposed to be following
.DrawText(text, font, Rgba32.Black, path, new TextGraphicsOptions(true) // draw the text along the path wrapping at the end of the line
{
WrapTextWidth = path.Length
}));
img.Save("output/wordart.png");
}
}
static void Main(string[] args)
{
System.IO.Directory.CreateDirectory("output");
using (Image <Rgba32> img = new Image <Rgba32>(1500, 500))
{
PathBuilder pathBuilder = new PathBuilder();
pathBuilder.SetOrigin(new PointF(500, 0));
pathBuilder.AddBezier(new PointF(50, 450), new PointF(200, 50), new PointF(300, 50), new PointF(450, 450));
// add more complex paths and shapes here.
IPath path = pathBuilder.Build();
SixLabors.Fonts.FontCollection fontCollection = new FontCollection();
SixLabors.Fonts.Font carlitoFont = fontCollection.Install(Directory.GetCurrentDirectory() + "/font/Carlito-Regular.ttf")
.CreateFont(14, FontStyle.Regular);
string text = "Hello World Hello World Hello World Hello World Hello World";
var textGraphicsOptions = new TextGraphicsOptions(true) // draw the text along the path wrapping at the end of the line
{
WrapTextWidth = path.Length
};
var point = new PointF(100, 100);
img.Mutate(ctx => ctx
.Fill(Rgba32.White) // white background image
.Draw(Rgba32.Gray, 3, path) // draw the path so we can see what the text is supposed to be following
.DrawText(textGraphicsOptions, text, carlitoFont, Rgba32.Black, point));
img.Save("output/path.png");
}
}
public void DrawPath(Point start, IList <IPathCommand> commands, double thickness, bool fill = false)
{
// Not supported
var builder = new PathBuilder();
builder.SetOrigin(new PointF((float)start.X, (float)start.Y));
builder.StartFigure();
PointF currentPoint = new PointF();
foreach (var c in commands)
{
switch (c)
{
case LineTo line:
{
builder.AddLine(currentPoint, line.End.ToPointF());
break;
}
case CurveTo curve:
{
builder.AddBezier(currentPoint, curve.ControlStart.ToPointF(), curve.ControlEnd.ToPointF(), curve.End.ToPointF());
break;
}
case MoveTo move:
{
builder.StartFigure();
break;
}
case QuadraticBeizerCurveTo curve:
{
builder.AddBezier(currentPoint, curve.Control.ToPointF(), curve.End.ToPointF());
break;
}
case ClosePath close:
{
builder.CloseFigure();
break;
}
}
currentPoint = c.End.ToPointF();
}
image.Mutate(ctx => ctx.Draw(Black, 2.0f, builder.Build()));
}
public void AddBezier()
{
var builder = new PathBuilder();
builder.AddBezier(new Vector2(10, 10), new Vector2(20, 20), new Vector2(20, 30), new Vector2(10, 40));
Assert.IsType <Path>(builder.Build());
}
static void Main(string[] args)
{
System.IO.Directory.CreateDirectory("output");
using (Image img = new Image <Rgba32>(1500, 500))
{
PathBuilder pathBuilder = new PathBuilder();
pathBuilder.SetOrigin(new PointF(500, 0));
pathBuilder.AddBezier(new PointF(50, 450), new PointF(200, 50), new PointF(300, 50), new PointF(450, 450));
// add more complex paths and shapes here.
IPath path = pathBuilder.Build();
// For production application we would recomend you create a FontCollection
// singleton and manually install the ttf fonts yourself as using SystemFonts
// can be expensive and you risk font existing or not existing on a deployment
// by deployment basis.
var font = SystemFonts.CreateFont("Arial", 39, FontStyle.Regular);
string text = "Hello World Hello World Hello World Hello World Hello World";
var textGraphicsOptions = new TextGraphicsOptions() // draw the text along the path wrapping at the end of the line
{
TextOptions =
{
WrapTextWidth = path.Length
}
};
// lets generate the text as a set of vectors drawn along the path
var glyphs = TextBuilder.GenerateGlyphs(text, path, new RendererOptions(font, textGraphicsOptions.TextOptions.DpiX, textGraphicsOptions.TextOptions.DpiY)
{
HorizontalAlignment = textGraphicsOptions.TextOptions.HorizontalAlignment,
TabWidth = textGraphicsOptions.TextOptions.TabWidth,
VerticalAlignment = textGraphicsOptions.TextOptions.VerticalAlignment,
WrappingWidth = textGraphicsOptions.TextOptions.WrapTextWidth,
ApplyKerning = textGraphicsOptions.TextOptions.ApplyKerning
});
img.Mutate(ctx => ctx
.Fill(Color.White) // white background image
.Draw(Color.Gray, 3, path) // draw the path so we can see what the text is supposed to be following
.Fill(Color.Black, glyphs));
img.Save("output/wordart.png");
}
}
/// <summary>
/// takes in a parsed path and returns a list of points that can be used to draw the path
/// </summary>
/// <returns>The drawing points.</returns>
/// <param name="segments">Segments.</param>
public Vector2[] getDrawingPoints(List <SvgPathSegment> segments, float flatness = 3)
{
var path = new PathBuilder();
for (var j = 0; j < segments.Count; j++)
{
var segment = segments[j];
if (segment is SvgMoveToSegment)
{
path.AddPoint(segment.start);
}
else if (segment is SvgCubicCurveSegment)
{
var cubicSegment = segment as SvgCubicCurveSegment;
path.AddBezier(segment.start, cubicSegment.firstCtrlPoint, cubicSegment.secondCtrlPoint, segment.end);
}
else if (segment is SvgClosePathSegment)
{
if (path.Count > 0 && !path.Buffer[0].Equals(path.Buffer[path.Count - 1]))
{
path.ClosePath();
}
}
else if (segment is SvgLineSegment)
{
path.AddPoint(segment.start);
path.AddPoint(segment.end);
}
else if (segment is SvgQuadraticCurveSegment)
{
var quadSegment = segment as SvgQuadraticCurveSegment;
var segmentArray = new Vector2[] { segment.end, quadSegment.secondCtrlPoint, quadSegment.firstCtrlPoint, segment.end };
path.AddBeziers(segmentArray, BezierType.Quadratic);
}
else
{
Debug.warn("unknown type in getDrawingPoints");
}
}
return(path.Buffer);
}
public void GradientsWithTransparencyOnExistingBackground <TPixel>(TestImageProvider <TPixel> provider)
where TPixel : unmanaged, IPixel <TPixel>
{
provider.VerifyOperation(
image =>
{
image.Mutate(i => i.Fill(Color.Red));
image.Mutate(ApplyGloss);
});
void ApplyGloss(IImageProcessingContext ctx)
{
Size size = ctx.GetCurrentSize();
IPathCollection glossPath = BuildGloss(size.Width, size.Height);
var graphicsOptions = new GraphicsOptions
{
Antialias = true,
ColorBlendingMode = PixelColorBlendingMode.Normal,
AlphaCompositionMode = PixelAlphaCompositionMode.SrcAtop
};
var linearGradientBrush = new LinearGradientBrush(new Point(0, 0), new Point(0, size.Height / 2), GradientRepetitionMode.Repeat, new ColorStop(0, Color.White.WithAlpha(0.5f)), new ColorStop(1, Color.White.WithAlpha(0.25f)));
ctx.SetGraphicsOptions(graphicsOptions).Fill(linearGradientBrush, glossPath);
}
IPathCollection BuildGloss(int imageWidth, int imageHeight)
{
var pathBuilder = new PathBuilder();
pathBuilder.AddLine(new PointF(0, 0), new PointF(imageWidth, 0));
pathBuilder.AddLine(new PointF(imageWidth, 0), new PointF(imageWidth, imageHeight * 0.4f));
pathBuilder.AddBezier(new PointF(imageWidth, imageHeight * 0.4f), new PointF(imageWidth / 2, imageHeight * 0.6f), new PointF(0, imageHeight * 0.4f));
pathBuilder.CloseFigure();
return(new PathCollection(pathBuilder.Build()));
}
}
/// <summary>
/// Draws a cubic bezier from the current point to the <paramref name="point"/>
/// </summary>
/// <param name="secondControlPoint">The second control point.</param>
/// <param name="thirdControlPoint">The third control point.</param>
/// <param name="point">The point.</param>
void IGlyphRenderer.CubicBezierTo(PointF secondControlPoint, PointF thirdControlPoint, PointF point)
{
Builder.AddBezier(_currentPoint, secondControlPoint, thirdControlPoint, point);
_currentPoint = point;
}
void IGlyphRenderer.CubicBezierTo(Vector2 secondControlPoint, Vector2 thirdControlPoint, Vector2 point)
{
builder.AddBezier(currentPoint, secondControlPoint, thirdControlPoint, point);
currentPoint = point;
}