//---------------------------------------------------------------------
private static void Shapes()
{
Action <Surface> draw = surface =>
{
using (var c = new Context(surface))
{
c.Antialias = Antialias.Subpixel;
// Hexagon:
Shape shape = new Hexagon(50);
shape.Draw(c, 50, 50);
shape.Fill(c, 50, 50, new Color(0.5, 0.5, 0.5));
// Square:
shape = new Square(50);
shape.Draw(c, 150, 50);
shape.Fill(c, 150, 50, new Color(0.5, 0.5, 0.5));
// Circle:
shape = new Circle(50);
shape.Draw(c, 100, 150);
shape.Fill(c, 100, 150, new Color(0.5, 0.5, 0.5));
// Bounding box:
var boundingBox = new Square(50);
c.LineWidth = 1;
var red = new Color(1, 0, 0);
boundingBox.Draw(c, 50, 50, red);
boundingBox.Draw(c, 150, 50, red);
boundingBox.Draw(c, 100, 150, red);
}
};
using (Surface surface = new ImageSurface(Format.Argb32, 180, 180))
{
draw(surface);
surface.WriteToPng("shapes.png");
}
using (Surface surface = new PdfSurface("shapes.pdf", 180, 180))
draw(surface);
using (Surface surface = new PSSurface("shapes.eps", 300, 300))
draw(surface);
using (Surface surface = new SvgSurface("shapes.svg", 180, 180))
draw(surface);
}
//---------------------------------------------------------------------
private static void PaintAfter()
{
Pattern pattern = null;
using (Surface surface = new SvgSurface("test.svg", 300, 300))
using (var c = new Context(surface))
{
// Draw to group
c.PushGroup();
{
var hex = new Hexagon(150);
hex.Fill(c, 150, 150, new Color(0.8, 0.8, 0.8));
}
// Get group
pattern = c.PopGroup();
c.Source = pattern;
// Draw (without mask, hence everything that's in the source)
c.Paint();
}
using (Surface pdfSurface = new PdfSurface("test1.pdf", 300, 300))
using (Surface svgSurface = new SvgSurface("test1.svg", 300, 300))
using (var c = new Context(svgSurface))
{
c.PushGroup();
{
c.Source = pattern;
c.Paint();
//pattern.Destroy();
c.Color = new Color(0, 0, 1);
c.LineWidth = 0.1;
c.MoveTo(0, 150);
c.LineTo(300, 150);
c.MoveTo(150, 0);
c.LineTo(150, 300);
c.Stroke();
c.Color = new Color(0, 0, 0);
//c.SelectFontFace("Georgia", FontSlant.Normal, FontWeight.Bold);
//c.SelectFontFace("Rockwell", FontSlant.Normal, FontWeight.Normal);
c.SelectFontFace("Arial", FontSlant.Normal, FontWeight.Normal);
//c.SelectFontFace("Times New Roman", FontSlant.Normal, FontWeight.Normal);
c.SetFontSize(16);
string text = "Hexagon with coordinate-axis";
//string text = "III";
// Determine the width of the text
double textWidth = c.GetTextWidth(text);
c.Save();
c.Translate((300 - textWidth) / 2, 16);
{
c.ShowText(text);
}
c.Restore();
c.MoveTo(0, 0);
c.LineTo(300, 300);
c.MoveTo(0, 300);
c.LineTo(300, 0);
c.Stroke();
c.Save();
c.Translate(16, 300);
c.Rotate(-Math.PI / 2);
c.Translate((300 - textWidth) / 2, 0);
{
c.ShowText(text);
}
c.Restore();
// Draw scala
c.Save();
c.Translate(270, 20);
{
// Farbverlauf:
Gradient linpat = new LinearGradient(0, 0, 0, 260);
linpat.AddColorStop(0, new Color(0, 1, 0));
linpat.AddColorStop(0.5, new Color(0, 0, 1));
linpat.AddColorStop(1, new Color(1, 0, 0));
c.Rectangle(0, 0, 20, 260);
c.Source = linpat;
//c.Fill();
c.FillPreserve();
c.Color = new Color(0, 0, 0);
c.LineWidth = 1;
//c.Rectangle(0, 0, 20, 260);
c.Stroke();
}
c.Restore();
}
pattern = c.PopGroup();
c.Source = pattern;
c.Paint();
using (var c1 = new Context(pdfSurface))
{
c1.Color = new Color(1, 1, 1, 0);
c1.Rectangle(0, 0, 300, 300);
c1.Fill();
c1.Source = pattern;
c1.Paint();
pdfSurface.WriteToPng("test1.png");
}
}
}