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.
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.
private void buttonCreatePdf_Click(object sender, EventArgs e) { // create a PDF document PdfDocument document = new PdfDocument(); // create a page in document PdfPage page1 = document.AddPage(); // create the true type fonts that can be used in document text Font sysFont = new Font("Times New Roman", 10, System.Drawing.GraphicsUnit.Point); PdfFont pdfFont = document.CreateFont(sysFont); PdfFont pdfFontEmbed = document.CreateFont(sysFont, true); float crtYPos = 20; float crtXPos = 5; PdfLayoutInfo textLayoutInfo = null; PdfLayoutInfo graphicsLayoutInfo = null; #region Layout lines PdfText titleTextLines = new PdfText(crtXPos, crtYPos, "Lines:", pdfFontEmbed); titleTextLines.ForeColor = Color.Navy; textLayoutInfo = page1.Layout(titleTextLines); // advance the Y position in the PDF page crtYPos = textLayoutInfo.LastPageRectangle.Bottom + 10; // layout a simple line PdfLine pdfLine = new PdfLine(new PointF(crtXPos, crtYPos), new PointF(crtXPos + 60, crtYPos)); graphicsLayoutInfo = page1.Layout(pdfLine); // layout a thick line PdfLine pdfThickLine = new PdfLine(new PointF(crtXPos + 70, crtYPos), new PointF(crtXPos + 130, crtYPos)); pdfThickLine.LineStyle.LineWidth = 3; graphicsLayoutInfo = page1.Layout(pdfThickLine); // layout a dotted colored line PdfLine pdfDottedLine = new PdfLine(new PointF(crtXPos + 140, crtYPos), new PointF(crtXPos + 200, crtYPos)); pdfDottedLine.LineStyle.LineDashPattern = PdfLineDashPattern.Dot; pdfDottedLine.ForeColor = Color.Green; graphicsLayoutInfo = page1.Layout(pdfDottedLine); // layout a dashed colored line PdfLine pdfDashedLine = new PdfLine(new PointF(crtXPos + 210, crtYPos), new PointF(crtXPos + 270, crtYPos)); pdfDashedLine.LineStyle.LineDashPattern = PdfLineDashPattern.Dash; pdfDashedLine.ForeColor = Color.Green; graphicsLayoutInfo = page1.Layout(pdfDashedLine); // layout a dash-dot-dot colored line PdfLine pdfDashDotDotLine = new PdfLine(new PointF(crtXPos + 280, crtYPos), new PointF(crtXPos + 340, crtYPos)); pdfDashDotDotLine.LineStyle.LineDashPattern = PdfLineDashPattern.DashDotDot; pdfDashDotDotLine.ForeColor = Color.Green; graphicsLayoutInfo = page1.Layout(pdfDashDotDotLine); // layout a thick line with rounded cap style PdfLine pdfRoundedLine = new PdfLine(new PointF(crtXPos + 350, crtYPos), new PointF(crtXPos + 410, crtYPos)); pdfRoundedLine.LineStyle.LineWidth = 5; pdfRoundedLine.LineStyle.LineCapStyle = PdfLineCapStyle.RoundCap; pdfRoundedLine.ForeColor = Color.Blue; graphicsLayoutInfo = 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 = Color.Navy; textLayoutInfo = page1.Layout(titleTextCircles); // advance the Y position in the PDF page crtYPos = textLayoutInfo.LastPageRectangle.Bottom + 10; // draw a simple circle with solid line PdfCircle pdfCircle = new PdfCircle(new PointF(crtXPos + 30, crtYPos + 30), 30); page1.Layout(pdfCircle); // draw a simple circle with dotted border line PdfCircle pdfDottedCircle = new PdfCircle(new PointF(crtXPos + 100, crtYPos + 30), 30); pdfDottedCircle.ForeColor = Color.Green; pdfDottedCircle.LineStyle.LineDashPattern = PdfLineDashPattern.Dot; graphicsLayoutInfo = page1.Layout(pdfDottedCircle); // draw a circle with colored border line and fill color PdfCircle pdfDisc = new PdfCircle(new PointF(crtXPos + 170, crtYPos + 30), 30); pdfDisc.ForeColor = Color.Navy; pdfDisc.BackColor = Color.WhiteSmoke; graphicsLayoutInfo = page1.Layout(pdfDisc); // draw a circle with thick border line PdfCircle pdfThickBorderDisc = new PdfCircle(new PointF(crtXPos + 240, crtYPos + 30), 30); pdfThickBorderDisc.LineStyle.LineWidth = 5; pdfThickBorderDisc.BackColor = Color.LightSalmon; pdfThickBorderDisc.ForeColor = Color.LightBlue; graphicsLayoutInfo = page1.Layout(pdfThickBorderDisc); crtYPos = graphicsLayoutInfo.LastPageRectangle.Bottom + 10; #endregion #region Layout ellipses and arcs PdfText titleTextEllipses = new PdfText(crtXPos, crtYPos, "Ellipses, arcs and slices:", pdfFontEmbed); titleTextEllipses.ForeColor = Color.Navy; textLayoutInfo = page1.Layout(titleTextEllipses); // advance the Y position in the PDF page crtYPos = textLayoutInfo.LastPageRectangle.Bottom + 10; // draw a simple ellipse with solid line PdfEllipse pdfEllipse = new PdfEllipse(new PointF(crtXPos + 50, crtYPos + 30), 50, 30); graphicsLayoutInfo = page1.Layout(pdfEllipse); // draw an ellipse with fill color and colored border line PdfEllipse pdfFilledEllipse = new PdfEllipse(new PointF(crtXPos + 160, crtYPos + 30), 50, 30); pdfFilledEllipse.BackColor = Color.WhiteSmoke; pdfFilledEllipse.ForeColor = Color.Green; graphicsLayoutInfo = page1.Layout(pdfFilledEllipse); // draw an ellipse arc with colored border line PdfEllipseArc pdfEllipseArc1 = new PdfEllipseArc(new RectangleF(crtXPos + 220, crtYPos, 100, 60), 0, 90); pdfEllipseArc1.ForeColor = Color.OrangeRed; pdfEllipseArc1.LineStyle.LineWidth = 3; graphicsLayoutInfo = page1.Layout(pdfEllipseArc1); // draw an ellipse arc with fill color and colored border line PdfEllipseArc pdfEllipseArc2 = new PdfEllipseArc(new RectangleF(crtXPos + 220, crtYPos, 100, 60), 90, 90); pdfEllipseArc2.ForeColor = Color.Navy; graphicsLayoutInfo = page1.Layout(pdfEllipseArc2); // draw an ellipse arc with fill color and colored border line PdfEllipseArc pdfEllipseArc3 = new PdfEllipseArc(new RectangleF(crtXPos + 220, crtYPos, 100, 60), 180, 90); pdfEllipseArc3.ForeColor = Color.Green; pdfEllipseArc3.LineStyle.LineWidth = 3; graphicsLayoutInfo = page1.Layout(pdfEllipseArc3); // draw an ellipse arc with fill color and colored border line PdfEllipseArc pdfEllipseArc4 = new PdfEllipseArc(new RectangleF(crtXPos + 220, crtYPos, 100, 60), 270, 90); pdfEllipseArc4.ForeColor = Color.Yellow; graphicsLayoutInfo = page1.Layout(pdfEllipseArc4); // draw an ellipse slice PdfEllipseSlice pdfEllipseSlice1 = new PdfEllipseSlice(new RectangleF(crtXPos + 330, crtYPos, 100, 60), 0, 90); pdfEllipseSlice1.BackColor = Color.Coral; graphicsLayoutInfo = page1.Layout(pdfEllipseSlice1); // draw an ellipse slice PdfEllipseSlice pdfEllipseSlice2 = new PdfEllipseSlice(new RectangleF(crtXPos + 330, crtYPos, 100, 60), 90, 90); pdfEllipseSlice2.BackColor = Color.LightBlue; graphicsLayoutInfo = page1.Layout(pdfEllipseSlice2); // draw an ellipse slice PdfEllipseSlice pdfEllipseSlice3 = new PdfEllipseSlice(new RectangleF(crtXPos + 330, crtYPos, 100, 60), 180, 90); pdfEllipseSlice3.BackColor = Color.LightGreen; graphicsLayoutInfo = page1.Layout(pdfEllipseSlice3); // draw an ellipse slice PdfEllipseSlice pdfEllipseSlice4 = new PdfEllipseSlice(new RectangleF(crtXPos + 330, crtYPos, 100, 60), 270, 90); pdfEllipseSlice4.BackColor = Color.Yellow; graphicsLayoutInfo = page1.Layout(pdfEllipseSlice4); crtYPos = graphicsLayoutInfo.LastPageRectangle.Bottom + 10; #endregion #region Layout rectangles PdfText titleTextRectangles = new PdfText(crtXPos, crtYPos, "Rectangles:", pdfFontEmbed); titleTextRectangles.ForeColor = Color.Navy; textLayoutInfo = page1.Layout(titleTextRectangles); // advance the Y position in the PDF page crtYPos = textLayoutInfo.LastPageRectangle.Bottom + 10; // draw a simple rectangle with solid line PdfRectangle pdfRectangle = new PdfRectangle(crtXPos, crtYPos, 100, 60); graphicsLayoutInfo = 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 = Color.WhiteSmoke; pdfFilledRectangle.ForeColor = Color.Green; pdfFilledRectangle.LineStyle.LineDashPattern = PdfLineDashPattern.Dot; graphicsLayoutInfo = page1.Layout(pdfFilledRectangle); // draw a rectangle with fill color and without border line PdfRectangle pdfFilledNoBorderRectangle = new PdfRectangle(crtXPos + 220, crtYPos, 100, 60); pdfFilledNoBorderRectangle.BackColor = Color.LightGreen; graphicsLayoutInfo = 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 = Color.LightSalmon; pdfThickBorderRectangle.ForeColor = Color.LightBlue; pdfThickBorderRectangle.LineStyle.LineWidth = 5; pdfThickBorderRectangle.LineStyle.LineJoinStyle = PdfLineJoinStyle.RoundJoin; graphicsLayoutInfo = page1.Layout(pdfThickBorderRectangle); crtYPos = graphicsLayoutInfo.LastPageRectangle.Bottom + 10; #endregion #region Layout Bezier curves PdfText titleTextBezier = new PdfText(crtXPos, crtYPos, "Bezier curves and polygons:", pdfFontEmbed); titleTextBezier.ForeColor = Color.Navy; textLayoutInfo = page1.Layout(titleTextBezier); // advance the Y position in the PDF page crtYPos = textLayoutInfo.LastPageRectangle.Bottom + 10; // the points controlling the Bezier curve PointF pt1 = new PointF(crtXPos, crtYPos + 50); PointF pt2 = new PointF(crtXPos + 50, crtYPos); PointF pt3 = new PointF(crtXPos + 100, crtYPos + 100); PointF pt4 = new PointF(crtXPos + 150, crtYPos + 50); // draw controlling points PdfCircle pt1Circle = new PdfCircle(pt1, 2); pt1Circle.BackColor = Color.LightSalmon; page1.Layout(pt1Circle); PdfCircle pt2Circle = new PdfCircle(pt2, 2); pt2Circle.BackColor = Color.LightSalmon; page1.Layout(pt2Circle); PdfCircle pt3Circle = new PdfCircle(pt3, 2); pt3Circle.BackColor = Color.LightSalmon; page1.Layout(pt3Circle); PdfCircle pt4Circle = new PdfCircle(pt4, 2); pt4Circle.BackColor = Color.LightSalmon; page1.Layout(pt4Circle); // draw the Bezier curve PdfBezierCurve bezierCurve = new PdfBezierCurve(pt1, pt2, pt3, pt4); bezierCurve.ForeColor = Color.LightBlue; bezierCurve.LineStyle.LineWidth = 2; graphicsLayoutInfo = page1.Layout(bezierCurve); #endregion #region Layout a polygons // layout a polygon without fill color // the polygon points PointF[] polyPoints = new PointF[]{ new PointF(crtXPos + 200, crtYPos + 50), new PointF(crtXPos + 250, crtYPos), new PointF(crtXPos + 300, crtYPos + 50), new PointF(crtXPos + 250, crtYPos + 100) }; // draw polygon points foreach (PointF polyPoint in polyPoints) { PdfCircle pointCircle = new PdfCircle(polyPoint, 2); pointCircle.BackColor = Color.LightSalmon; page1.Layout(pointCircle); } // draw the polygon line PdfPolygon pdfPolygon = new PdfPolygon(polyPoints); pdfPolygon.ForeColor = Color.LightBlue; pdfPolygon.LineStyle.LineWidth = 2; pdfPolygon.LineStyle.LineCapStyle = PdfLineCapStyle.ProjectingSquareCap; graphicsLayoutInfo = page1.Layout(pdfPolygon); // layout a polygon with fill color // the polygon points PointF[] polyFillPoints = new PointF[]{ new PointF(crtXPos + 330, crtYPos + 50), new PointF(crtXPos + 380, crtYPos), new PointF(crtXPos + 430, crtYPos + 50), new PointF(crtXPos + 380, crtYPos + 100) }; // draw a polygon with fill color and thick rounded border PdfPolygon pdfFillPolygon = new PdfPolygon(polyFillPoints); pdfFillPolygon.ForeColor = Color.LightBlue; pdfFillPolygon.BackColor = Color.LightSalmon; pdfFillPolygon.LineStyle.LineWidth = 5; pdfFillPolygon.LineStyle.LineCapStyle = PdfLineCapStyle.RoundCap; pdfFillPolygon.LineStyle.LineJoinStyle = PdfLineJoinStyle.RoundJoin; graphicsLayoutInfo = page1.Layout(pdfFillPolygon); #endregion Cursor = Cursors.WaitCursor; string pdfFile = Application.StartupPath + @"\DemoOutput\PdfGraphics.pdf"; try { document.WriteToFile(pdfFile); } catch (Exception ex) { MessageBox.Show(String.Format("Cannot create the PDF document. {0}", ex.Message)); return; } finally { document.Close(); Cursor = Cursors.Arrow; } // open the created PDF document try { System.Diagnostics.Process.Start(pdfFile); } catch (Exception ex) { MessageBox.Show(String.Format("The PDF document was created but cannot open '{0}'. {1}", pdfFile, ex.Message)); } }