private static void DrawEllipses(PdfPage page, PdfFont titleFont, PdfFont sectionFont)
{
PdfBrush brush = new PdfBrush();
PdfPen blackPen = new PdfPen(PdfRgbColor.Black, 1);
PdfPen redPen = new PdfPen(PdfRgbColor.Red, 1);
PdfRgbColor randomPenColor = new PdfRgbColor();
PdfPen randomPen = new PdfPen(randomPenColor, 1);
PdfRgbColor randomBrushColor = new PdfRgbColor();
PdfBrush randomBrush = new PdfBrush(randomBrushColor);
page.Graphics.DrawString("Ellipses", titleFont, brush, 20, 50);
page.Graphics.DrawLine(blackPen, 20, 150, 300, 150);
page.Graphics.DrawLine(blackPen, 80, 70, 80, 350);
page.Graphics.DrawEllipse(redPen, 80, 150, 180, 100);
page.Graphics.DrawLine(blackPen, 320, 150, 600, 150);
page.Graphics.DrawLine(blackPen, 380, 70, 380, 350);
page.Graphics.DrawEllipse(redPen, 380, 150, 180, 100, 30);
page.Graphics.DrawString("Random ellipses clipped to view", sectionFont, brush, 20, 385);
PdfPath ellipsePath = new PdfPath();
ellipsePath.AddEllipse(20, 400, 570, 300);
page.Graphics.SaveGraphicsState();
page.Graphics.SetClip(ellipsePath);
Random rnd = new Random();
for (int i = 0; i < 100; i++)
{
randomPenColor.R = (byte)rnd.Next(256);
randomPenColor.G = (byte)rnd.Next(256);
randomPenColor.B = (byte)rnd.Next(256);
randomBrushColor.R = (byte)rnd.Next(256);
randomBrushColor.G = (byte)rnd.Next(256);
randomBrushColor.B = (byte)rnd.Next(256);
int mode = rnd.Next(3);
double left = rnd.NextDouble() * page.Width;
double top = 380 + rnd.NextDouble() * 350;
double width = rnd.NextDouble() * page.Width;
double height = rnd.NextDouble() * 250;
double orientation = rnd.Next(360);
switch (mode)
{
case 0:
// Stroke ellipse outline
page.Graphics.DrawEllipse(randomPen, left, top, width, height, orientation);
break;
case 1:
// Fill ellipse interior
page.Graphics.DrawEllipse(randomBrush, left, top, width, height, orientation);
break;
case 2:
// Stroke and fill ellipse
page.Graphics.DrawEllipse(randomPen, randomBrush, left, top, width, height, orientation);
break;
}
}
page.Graphics.RestoreGraphicsState();
page.Graphics.DrawPath(blackPen, ellipsePath);
page.Graphics.CompressAndClose();
}
private static void DrawEllipses(PdfPage page, PdfFont titleFont, PdfFont sectionFont)
{
PdfBrush brush = new PdfBrush();
PdfPen blackPen = new PdfPen(PdfRgbColor.Black, 1);
PdfPen redPen = new PdfPen(PdfRgbColor.Red, 1);
PdfRgbColor randomPenColor = new PdfRgbColor();
PdfPen randomPen = new PdfPen(randomPenColor, 1);
PdfRgbColor randomBrushColor = new PdfRgbColor();
PdfBrush randomBrush = new PdfBrush(randomBrushColor);
page.Graphics.DrawString("Ellipses", titleFont, brush, 20, 50);
page.Graphics.DrawLine(blackPen, 20, 150, 300, 150);
page.Graphics.DrawLine(blackPen, 80, 70, 80, 350);
page.Graphics.DrawEllipse(redPen, 80, 150, 180, 100);
page.Graphics.DrawLine(blackPen, 320, 150, 600, 150);
page.Graphics.DrawLine(blackPen, 380, 70, 380, 350);
page.Graphics.DrawEllipse(redPen, 380, 150, 180, 100, 30);
page.Graphics.DrawString("Random ellipses clipped to view", sectionFont, brush, 20, 385);
PdfPath ellipsePath = new PdfPath();
ellipsePath.AddEllipse(20, 400, 570, 300);
page.Graphics.SaveGraphicsState();
page.Graphics.SetClip(ellipsePath);
Random rnd = new Random();
for (int i = 0; i < 100; i++)
{
randomPenColor.R = (byte)rnd.Next(256);
randomPenColor.G = (byte)rnd.Next(256);
randomPenColor.B = (byte)rnd.Next(256);
randomBrushColor.R = (byte)rnd.Next(256);
randomBrushColor.G = (byte)rnd.Next(256);
randomBrushColor.B = (byte)rnd.Next(256);
int mode = rnd.Next(3);
double left = rnd.NextDouble() * page.Width;
double top = 380 + rnd.NextDouble() * 350;
double width = rnd.NextDouble() * page.Width;
double height = rnd.NextDouble() * 250;
double orientation = rnd.Next(360);
switch (mode)
{
case 0:
// Stroke ellipse outline
page.Graphics.DrawEllipse(randomPen, left, top, width, height, orientation);
break;
case 1:
// Fill ellipse interior
page.Graphics.DrawEllipse(randomBrush, left, top, width, height, orientation);
break;
case 2:
// Stroke and fill ellipse
page.Graphics.DrawEllipse(randomPen, randomBrush, left, top, width, height, orientation);
break;
}
}
page.Graphics.RestoreGraphicsState();
page.Graphics.DrawPath(blackPen, ellipsePath);
page.Graphics.CompressAndClose();
}
