The graphic PDF objects in HiQPdf software are the lines, rectangles, circles, ellipses, ellipse arcs, ellipse slices, Bezier curves and polygons. The graphic objects can be laid out in any position in a canvas and they are not paginated.
The graphic PDF objects are all derived from the PdfDrawableObject class which is a specialization of the PdfObject generic class.
PDF Graphics Demo
In this demo you can learn how to layout graphics in a PDF document with various line styles and fill modes. There are examples for drawing lines, circles, ellipses, elippses arcs and slices, rectangles, Bezier curves and polygons.
Demo Source Code
C#
using System; using System.Collections.Generic; using System.Linq; using System.Threading.Tasks; using Microsoft.AspNetCore.Mvc; using Microsoft.AspNetCore.Http; using HiQPdfClient; namespace HiQPdf_Demo.Controllers { public class PdfGraphicsController : Controller { // GET: PdfGraphics public ActionResult Index() { return View(); } [HttpPost] public ActionResult CreatePdf(IFormCollection collection) { string serverIP = collection["textBoxServerIP"]; uint serverPort = uint.Parse(collection["textBoxServerPort"]); string serverPassword = collection["textBoxServerPassword"]; // create a PDF document PdfDocument document = new PdfDocument(serverIP, serverPort); // use server password if necessary if (serverPassword.Length > 0) document.ServerPassword = serverPassword; // set a demo serial number document.SerialNumber = "YCgJMTAE-BiwJAhIB-EhlWTlBA-UEBRQFBA-U1FOUVJO-WVlZWQ=="; // create a page in document PdfPage page1 = document.AddPage(); // create the true type fonts that can be used in document text PdfFont pdfFontEmbed = document.CreateFontFromName("Times New Roman", 10, true); float crtYPos = 20; float crtXPos = 5; #region Layout lines PdfText titleTextLines = new PdfText(crtXPos, crtYPos, "Lines:", pdfFontEmbed); titleTextLines.ForeColor = PdfColor.Navy; page1.Layout(titleTextLines); // advance the Y position in the PDF page crtYPos += pdfFontEmbed.Size + 10; // layout a simple line PdfLine pdfLine = new PdfLine(new PointFloat(crtXPos, crtYPos), new PointFloat(crtXPos + 60, crtYPos)); page1.Layout(pdfLine); // layout a thick line PdfLine pdfThickLine = new PdfLine(new PointFloat(crtXPos + 70, crtYPos), new PointFloat(crtXPos + 130, crtYPos)); pdfThickLine.LineStyle.LineWidth = 3; page1.Layout(pdfThickLine); // layout a dotted colored line PdfLine pdfDottedLine = new PdfLine(new PointFloat(crtXPos + 140, crtYPos), new PointFloat(crtXPos + 200, crtYPos)); pdfDottedLine.LineStyle.LineDashPattern = PdfLineDashPattern.Dot; pdfDottedLine.ForeColor = PdfColor.Green; page1.Layout(pdfDottedLine); // layout a dashed colored line PdfLine pdfDashedLine = new PdfLine(new PointFloat(crtXPos + 210, crtYPos), new PointFloat(crtXPos + 270, crtYPos)); pdfDashedLine.LineStyle.LineDashPattern = PdfLineDashPattern.Dash; pdfDashedLine.ForeColor = PdfColor.Green; page1.Layout(pdfDashedLine); // layout a dash-dot-dot colored line PdfLine pdfDashDotDotLine = new PdfLine(new PointFloat(crtXPos + 280, crtYPos), new PointFloat(crtXPos + 340, crtYPos)); pdfDashDotDotLine.LineStyle.LineDashPattern = PdfLineDashPattern.DashDotDot; pdfDashDotDotLine.ForeColor = PdfColor.Green; page1.Layout(pdfDashDotDotLine); // layout a thick line with rounded cap style PdfLine pdfRoundedLine = new PdfLine(new PointFloat(crtXPos + 350, crtYPos), new PointFloat(crtXPos + 410, crtYPos)); pdfRoundedLine.LineStyle.LineWidth = 5; pdfRoundedLine.LineStyle.LineCapStyle = PdfLineCapStyle.RoundCap; pdfRoundedLine.ForeColor = PdfColor.Blue; page1.Layout(pdfRoundedLine); // advance the Y position in the PDF page crtYPos += 10; #endregion #region Layout circles PdfText titleTextCircles = new PdfText(crtXPos, crtYPos, "Circles:", pdfFontEmbed); titleTextCircles.ForeColor = PdfColor.Navy; page1.Layout(titleTextCircles); // advance the Y position in the PDF page crtYPos += pdfFontEmbed.Size + 10; // draw a simple circle with solid line PdfCircle pdfCircle = new PdfCircle(new PointFloat(crtXPos + 30, crtYPos + 30), 30); page1.Layout(pdfCircle); // draw a simple circle with dotted border line PdfCircle pdfDottedCircle = new PdfCircle(new PointFloat(crtXPos + 100, crtYPos + 30), 30); pdfDottedCircle.ForeColor = PdfColor.Green; pdfDottedCircle.LineStyle.LineDashPattern = PdfLineDashPattern.Dot; page1.Layout(pdfDottedCircle); // draw a circle with colored border line and fill color PdfCircle pdfDisc = new PdfCircle(new PointFloat(crtXPos + 170, crtYPos + 30), 30); pdfDisc.ForeColor = PdfColor.Navy; pdfDisc.BackColor = PdfColor.WhiteSmoke; page1.Layout(pdfDisc); // draw a circle with thick border line PdfCircle pdfThickBorderDisc = new PdfCircle(new PointFloat(crtXPos + 240, crtYPos + 30), 30); pdfThickBorderDisc.LineStyle.LineWidth = 5; pdfThickBorderDisc.BackColor = PdfColor.LightSalmon; pdfThickBorderDisc.ForeColor = PdfColor.LightBlue; page1.Layout(pdfThickBorderDisc); crtYPos += 70; #endregion #region Layout ellipses and arcs PdfText titleTextEllipses = new PdfText(crtXPos, crtYPos, "Ellipses, arcs and slices:", pdfFontEmbed); titleTextEllipses.ForeColor = PdfColor.Navy; page1.Layout(titleTextEllipses); // advance the Y position in the PDF page crtYPos += pdfFontEmbed.Size + 10; // draw a simple ellipse with solid line PdfEllipse pdfEllipse = new PdfEllipse(new PointFloat(crtXPos + 50, crtYPos + 30), 50, 30); page1.Layout(pdfEllipse); // draw an ellipse with fill color and colored border line PdfEllipse pdfFilledEllipse = new PdfEllipse(new PointFloat(crtXPos + 160, crtYPos + 30), 50, 30); pdfFilledEllipse.BackColor = PdfColor.WhiteSmoke; pdfFilledEllipse.ForeColor = PdfColor.Green; page1.Layout(pdfFilledEllipse); // draw an ellipse arc with colored border line PdfEllipseArc pdfEllipseArc1 = new PdfEllipseArc(new RectangleFloat(crtXPos + 220, crtYPos, 100, 60), 0, 90); pdfEllipseArc1.ForeColor = PdfColor.OrangeRed; pdfEllipseArc1.LineStyle.LineWidth = 3; page1.Layout(pdfEllipseArc1); // draw an ellipse arc with fill color and colored border line PdfEllipseArc pdfEllipseArc2 = new PdfEllipseArc(new RectangleFloat(crtXPos + 220, crtYPos, 100, 60), 90, 90); pdfEllipseArc2.ForeColor = PdfColor.Navy; page1.Layout(pdfEllipseArc2); // draw an ellipse arc with fill color and colored border line PdfEllipseArc pdfEllipseArc3 = new PdfEllipseArc(new RectangleFloat(crtXPos + 220, crtYPos, 100, 60), 180, 90); pdfEllipseArc3.ForeColor = PdfColor.Green; pdfEllipseArc3.LineStyle.LineWidth = 3; page1.Layout(pdfEllipseArc3); // draw an ellipse arc with fill color and colored border line PdfEllipseArc pdfEllipseArc4 = new PdfEllipseArc(new RectangleFloat(crtXPos + 220, crtYPos, 100, 60), 270, 90); pdfEllipseArc4.ForeColor = PdfColor.Yellow; page1.Layout(pdfEllipseArc4); // draw an ellipse slice PdfEllipseSlice pdfEllipseSlice1 = new PdfEllipseSlice(new RectangleFloat(crtXPos + 330, crtYPos, 100, 60), 0, 90); pdfEllipseSlice1.BackColor = PdfColor.Coral; page1.Layout(pdfEllipseSlice1); // draw an ellipse slice PdfEllipseSlice pdfEllipseSlice2 = new PdfEllipseSlice(new RectangleFloat(crtXPos + 330, crtYPos, 100, 60), 90, 90); pdfEllipseSlice2.BackColor = PdfColor.LightBlue; page1.Layout(pdfEllipseSlice2); // draw an ellipse slice PdfEllipseSlice pdfEllipseSlice3 = new PdfEllipseSlice(new RectangleFloat(crtXPos + 330, crtYPos, 100, 60), 180, 90); pdfEllipseSlice3.BackColor = PdfColor.LightGreen; page1.Layout(pdfEllipseSlice3); // draw an ellipse slice PdfEllipseSlice pdfEllipseSlice4 = new PdfEllipseSlice(new RectangleFloat(crtXPos + 330, crtYPos, 100, 60), 270, 90); pdfEllipseSlice4.BackColor = PdfColor.Yellow; page1.Layout(pdfEllipseSlice4); crtYPos += 70; #endregion #region Layout rectangles PdfText titleTextRectangles = new PdfText(crtXPos, crtYPos, "Rectangles:", pdfFontEmbed); titleTextRectangles.ForeColor = PdfColor.Navy; page1.Layout(titleTextRectangles); // advance the Y position in the PDF page crtYPos += pdfFontEmbed.Size + 10; // draw a simple rectangle with solid line PdfRectangle pdfRectangle = new PdfRectangle(crtXPos, crtYPos, 100, 60); page1.Layout(pdfRectangle); // draw a rectangle with fill color and colored dotted border line PdfRectangle pdfFilledRectangle = new PdfRectangle(crtXPos + 110, crtYPos, 100, 60); pdfFilledRectangle.BackColor = PdfColor.WhiteSmoke; pdfFilledRectangle.ForeColor = PdfColor.Green; pdfFilledRectangle.LineStyle.LineDashPattern = PdfLineDashPattern.Dot; page1.Layout(pdfFilledRectangle); // draw a rectangle with fill color and without border line PdfRectangle pdfFilledNoBorderRectangle = new PdfRectangle(crtXPos + 220, crtYPos, 100, 60); pdfFilledNoBorderRectangle.BackColor = PdfColor.LightGreen; page1.Layout(pdfFilledNoBorderRectangle); // draw a rectangle filled with a thick border line and reounded corners PdfRectangle pdfThickBorderRectangle = new PdfRectangle(crtXPos + 330, crtYPos, 100, 60); pdfThickBorderRectangle.BackColor = PdfColor.LightSalmon; pdfThickBorderRectangle.ForeColor = PdfColor.LightBlue; pdfThickBorderRectangle.LineStyle.LineWidth = 5; pdfThickBorderRectangle.LineStyle.LineJoinStyle = PdfLineJoinStyle.RoundJoin; page1.Layout(pdfThickBorderRectangle); crtYPos += 70; #endregion #region Layout Bezier curves PdfText titleTextBezier = new PdfText(crtXPos, crtYPos, "Bezier curves and polygons:", pdfFontEmbed); titleTextBezier.ForeColor = PdfColor.Navy; page1.Layout(titleTextBezier); // advance the Y position in the PDF page crtYPos += pdfFontEmbed.Size + 10; // the points controlling the Bezier curve PointFloat pt1 = new PointFloat(crtXPos, crtYPos + 50); PointFloat pt2 = new PointFloat(crtXPos + 50, crtYPos); PointFloat pt3 = new PointFloat(crtXPos + 100, crtYPos + 100); PointFloat pt4 = new PointFloat(crtXPos + 150, crtYPos + 50); // draw controlling points PdfCircle pt1Circle = new PdfCircle(pt1, 2); pt1Circle.BackColor = PdfColor.LightSalmon; page1.Layout(pt1Circle); PdfCircle pt2Circle = new PdfCircle(pt2, 2); pt2Circle.BackColor = PdfColor.LightSalmon; page1.Layout(pt2Circle); PdfCircle pt3Circle = new PdfCircle(pt3, 2); pt3Circle.BackColor = PdfColor.LightSalmon; page1.Layout(pt3Circle); PdfCircle pt4Circle = new PdfCircle(pt4, 2); pt4Circle.BackColor = PdfColor.LightSalmon; page1.Layout(pt4Circle); // draw the Bezier curve PdfBezierCurve bezierCurve = new PdfBezierCurve(pt1, pt2, pt3, pt4); bezierCurve.ForeColor = PdfColor.LightBlue; bezierCurve.LineStyle.LineWidth = 2; page1.Layout(bezierCurve); #endregion #region Layout a polygons // layout a polygon without fill color // the polygon points PointFloat[] polyPoints = new PointFloat[]{ new PointFloat(crtXPos + 200, crtYPos + 50), new PointFloat(crtXPos + 250, crtYPos), new PointFloat(crtXPos + 300, crtYPos + 50), new PointFloat(crtXPos + 250, crtYPos + 100) }; // draw polygon points foreach (PointFloat polyPoint in polyPoints) { PdfCircle pointCircle = new PdfCircle(polyPoint, 2); pointCircle.BackColor = PdfColor.LightSalmon; page1.Layout(pointCircle); } // draw the polygon line PdfPolygon pdfPolygon = new PdfPolygon(polyPoints); pdfPolygon.ForeColor = PdfColor.LightBlue; pdfPolygon.LineStyle.LineWidth = 2; pdfPolygon.LineStyle.LineCapStyle = PdfLineCapStyle.ProjectingSquareCap; page1.Layout(pdfPolygon); // layout a polygon with fill color // the polygon points PointFloat[] polyFillPoints = new PointFloat[]{ new PointFloat(crtXPos + 330, crtYPos + 50), new PointFloat(crtXPos + 380, crtYPos), new PointFloat(crtXPos + 430, crtYPos + 50), new PointFloat(crtXPos + 380, crtYPos + 100) }; // draw a polygon with fill color and thick rounded border PdfPolygon pdfFillPolygon = new PdfPolygon(polyFillPoints); pdfFillPolygon.ForeColor = PdfColor.LightBlue; pdfFillPolygon.BackColor = PdfColor.LightSalmon; pdfFillPolygon.LineStyle.LineWidth = 5; pdfFillPolygon.LineStyle.LineCapStyle = PdfLineCapStyle.RoundCap; pdfFillPolygon.LineStyle.LineJoinStyle = PdfLineJoinStyle.RoundJoin; page1.Layout(pdfFillPolygon); #endregion try { // write the PDF document to a memory buffer byte[] pdfBuffer = document.WriteToMemory(); FileResult fileResult = new FileContentResult(pdfBuffer, "application/pdf"); fileResult.FileDownloadName = "PdfGraphics.pdf"; return fileResult; } finally { document.Close(); } } } }
See Also