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This sample shows how to draw circles and ellipses, and how to use such operations as path, clipping.
using PDFMosaic; using System; using System.Drawing; namespace CirclesEllipses { class CirclesEllipses { static void Main() { PDFDocument document = new PDFDocument(); document.Pages.Add(new PDFPage(PDFPaperFormat.A4)); PDFCanvas canvas = document.Pages[0].Canvas; PDFPath path = new PDFPath(); path.AddEllipse(50, 50, document.Pages[0].Width - 100, document.Pages[0].Height - 100); canvas.SetClip(path); canvas.DrawPath(new PDFSolidPen(), path); path.Reset(); Random rand = new Random(); for (int i = 0; i < 200; ++i) { float x = (float)rand.NextDouble() * (document.Pages[0].Width - 100 + 1); float y = (float)rand.NextDouble() * (document.Pages[0].Height - 100 + 1); float s = (float)rand.NextDouble() * (150 + 1); if (i % 2 == 0) { path.AddCircle(x, y, s); } else { float k = (float)rand.NextDouble() * (150 + 1); path.AddEllipse(x, y, s, k); } PDFColor color = new PDFColorRGB((byte)rand.Next(256), (byte)rand.Next(256), (byte)rand.Next(256)); canvas.DrawPath(new PDFSolidPen(color), new PDFSolidBrush(color), path); path.Reset(); } path.AddEllipse(50, 50, document.Pages[0].Width - 100, document.Pages[0].Height - 100); canvas.SetClip(path); PDFSolidPen pen = new PDFSolidPen(); pen.Width = 2.5f; canvas.DrawPath(pen, path); document.Save("TestCirclesEllipses.pdf", true); } } }
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